single speed scooter throttle conversion?

I have a scooter controller that requires a three wire throttle. could i just splice two of the three wires together to make it a single speed? the three wires are labled as: voltage ground speed adjusting signal

Posted by budsiskos 9 years ago


WEEZER.

Http://www.youtube.com/watch?v=WanLLnVixC4Gary Brolsma is in this video, and diet coke with Mentos, the fresh maker.

Posted by Yerboogieman 9 years ago



ISP's an their sneaky ways of limiting your internet to a crawl

With more and more restiction hitting internet users I though I write a bit about the methods used to make our life harder than necessary. First example: Heavy gamer... Some people love their Xbox or PC for only one reason, online gaming. Too bad when all of a sudden your ping rates go sky high or the chat has a lag making good conversations during the game impossible. Second example: Streaming media... People like to watch what they want and when they want. Online streaming is a good way to get the latest trailers, catch up with your favourite shows or just to kill some time. Too bad when you notice the connection takes forever and that you can only watch in low quality without running into buffer problems. Last but not least P2P.... Although used for mainly illegal stuff, P2P is still not dead. A lot of software and even collections of documents are shared by the use of various P2P networks. Torrents are the most common ones but it really does not matter once your ISP has hit you hard. So what have all these in common when we speak about ISP troubles you might wonder? Well, firstly they cause a lot of traffic and secondly a large number of connections at the same time. Why would my ISP limit me? 1. You are using your internet for illegal downloads. Although in many cases the ISP won't be able to tell what you are downloading, but they can clearly see the volume of the downloads and that a P2P system is used. Does not take a genius to realise several GB a week on a constant base can't be all legal. 2. Cheap ISP A lot of our providers rent their bandwidth from another provider. This way they can provide cheaper prices but have to make sure not go over the allowance as it would could dearly. A good way of preventing this is to limit speed during so called peak hours - basically whenever a lot of people are online. 3. Your area.... Let's say you are living in a densly populated area. There you often have a single exchange for all internet and phone users. Although the numbers of possible users can be increased by adding more hardware, the bottleneck is the feed to this exchange. As they are owned by a single provider and every other ISP has to pay for the use it becomes clear that this provider will have the best speeds and traffic allowances for the people connected. In return the other ISP(s) will be reduced in speed and sometimes even the type of connection possible, for example blocking all P2P traffic completely. How do I find out what is happening to me? This is indeed a hard one! No ISP will tell you "Yes, we limited you to xxxx and these services are not working on your connection: ...." Their fineprint states you have internet and Email, depending where you are maybe online TV services. But this is only true for standard ports and protocols used! So for your favorite online game it might be possible to download the latest update in the GB range within minutes but still encounter a massive lag during the play sessions. Similar story for low speeds. It is common practise to prioritise traffic to local speed testing servers. This means no matter what "problem" you might have all test will give positive results. So you might be able to get high speeds in your tests but watching a Youtube video can mean to first buffer the entire video before you can watch it. You ISP won't support any requests as long as common speed tests work fine for you. A sure way of testing is to download a Linux distribution from a remote server. How long does it take to download? Now do the same using a P2P download of the same distribution. Did it take much longer or did you have problems connecting to peers? If so you are limited by your ISP. Be aware that this might be true for only one type of P2P network, while others are uneffected. For games check your Ping times against ping times done manual against a known server, for example Google. If they are close all is good, if the game ping is much higher (often in the thausands compared to around 300ms max) you are sucked into limitations. Ok, I am fairly sure I am limited by my ISP, is there anything I can do? If you mainly use the internet for illegal downloads you might want to consider going the legal way. For all others, check below. Main reasons for limits put on your account or connection are congestion (nothing you can do about except trying the ISP that owns your phone network and to pay more - and of course the amount of connections you make. Let me give you an example: Downloading a huge file from a server usually needs a single connection on port80. Doing the same using P2P services requires a lot of simultanious connections to many servers/PC's around the world. Only with enough, fast connections your download will progress at good speeds. You ISP can see the number of connections and cut them at a limit or completely disable the protocol used for the download. The result is crawling speeds for the download and you only see a few peers available. Multiplayer games often use several ports for the traffic, game status, chat, graphic updates like location of other players and so on. So if you play in a world with 8 of your friends and fight against 200 online players all these infos has to get to your system. Having a few kids all enjoying different online sessions at the same time certainly does not help either. ;) Unless you are permanently limited there are a few options to make things better: 1. Limit yourself to the off-peak times for big downloads. 2. Try to avoid multiple game sessions and downloads from a single internet connection, e.g: let the kids play with one console at a time. 3. Change the ports used by your program, sometimes the standard ports are used by everyone else around, changing them gives the ISP the option to spread the load. 4. Last and best option: Limit the amount of allowed connections. For games this is not always possible but for other services it is. Imagine your P2P program using 300 download sources at the same time. Every one has the actual data and a lot of other informations to transmit while your system has to send the receiving info to every single one. On top of all that you have the informations needed to find new peers, coordinate the parts and so on. You can limit those in the settings of the program. So instead of allowing 500 or more connections at the same time go down to 100 or less. Instead of allowing 100 half open connections (used to negotiate the download for a new peer) go down to 20. And of course limiting your own upload and the connections used for it does help a lot. Myths and alternatives.... You might have heard the things like "protocol obfuscation", "port hoppers" and similar exist, same for the "Tor" network and maybe even the "usenet". The myth behind all of them is the claim that oyur ISP won't actually see what you do and what your download. On top of that you have so called "VPN' services. Although some of the services will help you to overcome certain limits it does not change the fact that you ISP still can see your up- download volume and the number of connections in use. And trust me, they are not dumb either, so they will know anyway that you mostly use the internet for illegal downloads. After all, what reasons could you have to use encrypted services or to direct your traffic over VPN networks? Of course being in China or similar countries is a different story due to gouvernment restictions on the internet. As long as you do direct download with only a hand full of connections you should be fine, for everything else it comes down to luck. Protocol obfuscation worked for a few months until ISP's fixed it. The usenet might be an alternative but not for everyone. Even the famous Tor network or dedicated VPN services won't help you once your ISP got you flagged. The will simply limit everything besides standard protocols and ports, so you can use you Email and surf the net, even download directly for a server but everything else might be crippled. As I said earlier there is no way for the user to truely check what limits he has or what ports and protocols might be affected - you ISP won't tell you either. Before you get trapped into a new contract because your ISP is no good turn off all P2P and gaming for a day or two. Try again at night times after a reset of your modem/router. Quite often you will see it works just fine for a while. If so you can limit yourself, use off-peak times and so on. Sometimes it also helps to simply limit the download speed itself. Of course the best alternative is not to use illegal downloads and to seek local content for game servers or online video.

Posted by Downunder35m 3 years ago


50cc Chinese scooter problems? Answered

I have a 2001 Chinese scooter, 50cc, and it has some problems... We took the handlebars off to fit it in a vehicle for transport (Yeah, stupid idea, I know now...), and now, the wiring is all messed up. First off, the electric start won't work anymore, I'm going to go through, and check a relay and the battery voltage tomorrow. Second, when I kick start it, and yes, It'll kick start, but only after 50 some kicks.. But when I kick start it, the engine starts going full throttle, but the throttle is not twisted at all. Throttle cable problem? Lastly, the turn signals are messed up a bit. The right blinker flashes one of the headlights inside of the blinker.... What the hell? All the wires are connected correctly. Please help!! Thanks!

Asked by Zem 7 years ago


Throttle Guage Sensor

Im trying to figure out how to guage how much throttle im applieing in my car. I want to have a set of lights or even just an analog guage that tells me for example that i am using 25% of my throttle. I was thinking of putting some sort of pressure switch under the gas pedal, but Im stuck on where to start. Thanks, Newman

Posted by Newman180 10 years ago



35pounds thrust thermojet

Hello everybody here iam going to show you the 10% throttle of the engine and 40% throttle of the engine. At 100% throttle 40pounds thrust is got. But unfortunately my LPG valve has got some restrictions so iam unable to show you guys the peak thrust. engine at 10% throttle http://www.youtube.com/watch?v=6WBPjB0kJYI engine at 40% throttle http://www.youtube.com/watch?v=izwCsXbhUVM

Posted by ganuganu 6 years ago


Even if throttle is at max position, my quadcopter is not flying more than 3 feet. why?

How to tune the copter for more stability? how to make it fly at higher altitude?

Asked by Naveen D S 3 years ago


how do I directly hook up my throttle to a gas peddle?

I have a 12.5 horse briggs motor on my craftsman and I would like to make it faster please help

Asked by joe2007 8 years ago



ESC zero throttle power consumption? Answered

I have heard that an electronic speed controller (esc) uses some power continuously even at zero throttle. What I was told was about 0.5 amps, but it seems like it would be different based on size, voltage, etc... My UAV has two 20 amp ecs's being powered by two 4.4 Ah 11.1 volt batteries and it will need to land and sit with the power on for 3 hours after flying 2 miles and then fly back. At 0.5 amps the 3 hour sit will waste 3 Ah. I will probably need to set it up so the esc's are unpowered at zero throttle but everything else will remain powered. Does anyone know a way to calculate about how much current the esc will burn at zero throttle if you know what battery, esc, and motor you have? Or do I need to measure it directly to know?

Asked by Jaycub 6 years ago


Connect ESCs with RC receiver?

I am trying to connect 4 ESCs with a FlySku 6 Channel Receiver. I managed to connect all four of them to the throttle channel and it works fine. However, is it possible to connect them to other channels wiht them being plugged in the throttle channel at the same time? I am making a quad-copter and I am not sure what channels to use? like I know that we need the throttle channel to change the throttle and the motor speed. but like to change the pitch, roll and yaw, we need the other channels too right? So can anyone please guide me through it? I am using a flycky CT6B transmitter and a 6 channel receiver.

Asked by Bam Boy 4 years ago



Simple Quadcopter using Arduino Uno?

Hello guys I am making a quadcopter using Arduino uno. My first simple aim is to lift and hover the quadcopter.  To achieve this aim  I have connected the signal Wire of all the ESC's to arduino Pin 9 and giving throttle via node server using bluetooth module and johnny five library.  My quadcopter lifts from 2 sides (flips) and sometimes little bit from 3rd side also.  Can anyone suggest me anything ? The thing which I am doing giving equal throttle to all motor, Is it right ? or  should I give more throttle to clockwise and little less throttle to counter clock wise motors. I will be very thankful, if you guys help me to lift my quadcopter

Asked by nishanksingla 2 years ago


Make thrustmaster top gun fox 2 pro usb work?

I have an old thrustmaster top gun fox 2 pro usb joystick that i got from a thrift store. I am using a windows 8.1 pro 64-bit computer and it doesn't detect the stick when i plug it in even after installing thrustmaster's drivers. It is a usb 1.1 stick and i have usb 2.0 and 3.0 ports on the computer. i have taken the stick apart and looked inside to see if there was any damage and there was none as far as I can tell. the drivers for it are only for xp but I would really like to use it on my windows 8 machine so I can play FSX with rudder controls and a few extra buttons. thanks!

Asked by tvsamuel 4 years ago


Zero to 300mph in 30 seconds. On two wheels.

Meet the world's fastest ever road vehicle built to reach an astonishing top speed of 340mph.The Acabion GTBO uses jet fighter technology and aerodynamics to reach its extraordinary speed propelled by a state-of-the-art turbo-charged engine.Its designers revealed it could reach 300mph in a blistering 30 seconds - substantially quicker than the rival Bugatti Veyron which takes 55 seconds to reach its top speed of 250mph.Good grief, that would rattle your teeth!The article implies that an electric version is in the pipeline as well.Daily Mail story750 hp and 700 lbs vehicle weight result in more than 2100 hp per ton. They boost the jet-like GTBO to jet-fighter punch and to new dimensions of both efficiency and speed.V-max 340 mph at half throttle, governor limited.0 to 300 mph in less than 30 sec.Economic theories tell us, that you can not maximize effect and minimize effort at the same time. The Acabion GTBO proves the opposite. It minimizes weight and maximizes power and aerodynamic efficiency. The effects are just out of this world.100 mph at 1.7% throttle and 100 miles per gallon.150 mph at 4.3% throttle and 62 miles per gallon.250 mph at 17% throttle and 25 miles per gallon.Acabion websiteMore photos at Jalopnik

Posted by Kiteman 10 years ago


Why my quadcopter is oscillating and crashing after taking off?

Hi guys, I am new to this multirotor domain. We are strugling with our first F450 quad. Below are the specs: 1. F450 quadcopter chassis 2. KK2.1 Flight controller. 3. FLYSKY CT6B --- 6 channel radio transmitter 4. 1400 KV Brushless motor 5. 30 amps ESC 6. Lipo battery Firstly the quad was not taking off properly. More over, after activating self level mode also, the quad is not at all stable. If we max up the throttle, then it flips in one side and crashes. Otherwise, it takes off from the ground upto 1-2 feet if we slowly increase the throttle and then oscillates and to avoid crash, we then decrease the throttle. Please see the video HERE for more reference. Please guys, really need your help in this matter. We are not able to understand exactly what is wrong with our quad. We have already calibrated our ESC's and the Accelarometer but no luck. Please help guys.

Asked by RohitR66 1 year ago


Using a hall effect sensor with TL494 pulse width modulator.

I have an electric billy cart with a dead controller board. I constructed the kit circuit below to replace the dead board and it works well enough for the job except for one small problem. The throttle on the billy cart utilizes a hall effect device and not a pot. The billy cart also has a handbrake with a switch that closes when applied. I use this with a resistor to discharge C2 and pull pin 4 (inhibit) high. This ensures a gentle start (as the capacitor slowly charges through the 100k resistor) if the brake is released with the throttle advanced. The output range of the throttle is 950 mV to 4.1 V if VREF (5V) is used as the supply. (I'm dropping it in in place of the pot.) 4.1 V is sufficient to achieve the maximum 90% duty cycle of the chip, but 950 mV leaves me with a minimum duty cycle of about 21%, and of course a motor that won't stop. Will changing the divider ratios 20k/2k2 & 47k/47k be sufficient to get me zero speed or am I going to have to do something more exotic? Thanks in advance.

Posted by Rasputin182 10 years ago


Currie Electic Bike conversion kit

I inherited a Currie E Bike conversion kit which included the rear wheel and drive motor assembly and battery pack/charger combo. It did not include the wiring harness or throttle. I did find a generic throttle/control on ebay. The kit did not have the rack that I've seen in other pictures, so I will make my own. Does anyone know enough about these to know the wiring layout or any other parts that are needed? I have a bike already to convert. I can solder and do most of my own bike repairs and some fabrication, so this doesn't appear above my usual skill level. Thanks in advance for any help. Jim

Posted by jimmilt 6 years ago


how do I troubleshoot the idle on my 97 cr 250?

My two stroke honda 250 cc 1997 dirtbike is having trouble idling without me giving it constant throttle.  What are some of the things I could do to perhaps fix this problem?

Asked by tt tophs 7 years ago


KIDS BOAT, Looking for Ideas, Please Help!!!!

Ok, So I am a tinkerer Last month we we're at the Lake and my 5 YearOld and my 4 YearOld decided that they want a BOAT..  So being the Father that I am, Became flooded with giving MY kids a boat unlike anyone's. SO Began the Brain Storm. Picked up a Cheap "BROKEN" Trolling motor, and a Toy Sandpit from a friend.. SANDPIT holds water, Must hold OUT water as well... Want to build small "Transom" out of PVC fittings that will fit snugly in Aft. Also would like to fashion a way to use the Steering wheel, that I don't have yet... to Either turn the Motor or Manipulate a Rudder of some Sort.. Also a Throttle set up unfortionitely to turn the throttle into the forward position it turns Clockwise.. not counter clockwise, which would allow me to mount it somehow on the right side, Like a Real boats Throttle control.. have some Thick HDPE Sheeting, that molds fairly well when heated.. and Also the Trolling motor... Pictures Included.. Please ANY Ideas would be Greatly Appreciated.. My Son and Daughter want a TUGBOAT, which thankfully this lends itself to PERFECTLY!!!!

Posted by exerp 7 years ago



What's the best flight simulator for me?

I have a decent computer (XP, ~1.5 Ghz CPU). I love dogfighting but that's not all I do. I have a joystick and throttle (pretty crappy but I might upgrade soon as well as get some rudder pedels).

Asked by bowmaster 8 years ago


Why won't my two stroke run?

I have a two stroke weed eater engine (actually from a tiller but it's the exact same) and I am having trouble getting it to run. I have the carb screw tightened all the way so the carb is opened up as much as it can be but when I start it, it coughs like it wants to die then it dies. If I squeeze the throttle a little it will continue running or if I squeeze it all the way it will still run. It just won't run if I let it sit. Also, I am intending to use it to put on a bike and it has a clutch but it doesn't really work that well. It will engage without even squeezing the throttle. Any idea of where I can get a small geared clutch that will fit it? Thanks.

Asked by chiefs543 5 years ago


No, that doesnt look right... Potentiometer Expert Needed!

Hi All! My brother and I are building an e-bike and we THINK we know how to attach a throttle, but it might blow up the battery... if worse comes to worse then we have a toggle button we can install but it's not really ideal. I've attached a circuit diagram below of how everything goes together, but this is my thinking; With nobody touching the throttle, in my circuit, wont i have a current flowing from the battery anode via the potentiometer straight back into the battery cathode? This results in a huge waste of energy doesnt it? And the battery would drain even when the bike is stored in a hallway overnight.  So, does anybody know if this circuit will work? i need it to take energy from the battery ONLY when active.

Posted by Tsimbilakis 2 years ago


how to combine 2 Arduino codes together ?

Hello, I have a question. I need to combine my code for my Arduino project. I'm using a Arduino micro board .  The 2 codes are maxsonar and another is a flying drones coding. I'm lost and don't know how to combine the both of them as the maxsonar code will overwrite the flying drones code causing it unable to fly. Maxsonar code const int anPin1 = 0; const int anPin2 = 1; int triggerPin1 = 13; long distance1, distance2, cm1 ,cm2; void setup() {   Serial.begin(9600);  // sets the serial port to 9600   pinMode(triggerPin1, OUTPUT);   pinMode(A5, OUTPUT);   pinMode(A11, OUTPUT); } void start_sensor(){   digitalWrite(triggerPin1,HIGH);   delay(1);   digitalWrite(triggerPin1,LOW); } void Fading()//led1 { if (distance1 == 9) {    analogWrite(A5,25.5);     delay(10); } else if (distance1 == 8) {    analogWrite(A5,76.5);     delay(10); } else if( distance1 == 7) {    analogWrite(A5,153);     delay(10); } else if(distance1 == 6) {    analogWrite(A5,255);     delay(10); }   }   void Fading2()//led1 {   if (distance2 == 9) {    analogWrite(A11,25.5);     delay(10); } else if (distance2 == 8) {    analogWrite(A11,76.5);     delay(10); } else if( distance2 == 7) {    analogWrite(A11,153);     delay(10); } else if(distance2 == 6 ) {    analogWrite(A11,255);     delay(10); }   }   void read_sensors(){   /*   Scale factor is (Vcc/512) per inch. A 5V supply yields ~9.8mV/in   Arduino analog pin goes from 0 to 1024, so the value has to be divided by 2 to get the actual inches   */   distance1 = analogRead(anPin1)/2;   distance2 = analogRead(anPin2)/2; } void count_in_cm() {   cm1 = distance1 * 2.54;   cm2 = distance2 * 2.54; } void print_all() {     if( distance1 =10 )   {   Fading();   analogWrite(A11,0);   Serial.print("Sensor1: Warning");   Serial.print(" ");   Serial.print(" ");   Serial.print("S2");   Serial.print(" ");   Serial.print(distance2);                                                                                                                                                                                                                                                                                                              Serial.print("in");   Serial.print(" ");   Serial.print(" ");   Serial.print(cm2);   Serial.print("cm");   Serial.println();   delay(700);     }   else if(distance1 >= 10 && distance2   {   Fading2();   analogWrite(A5,0);   Serial.print("S1");   Serial.print(" ");   Serial.print(distance1);   Serial.print("in");   Serial.print(" ");   Serial.print(" ");   Serial.print(cm1);   Serial.print("cm");   Serial.print(" ");   Serial.print(" ");   Serial.print("Sensor2: Warning");   Serial.println();   delay(700);   }   else if (distance1   {     Fading();     Fading2();     Serial.print("Sensor1: Warning");     Serial.print("  ");     Serial.print("Sensor2: Warning");     Serial.println();     delay(700);      }   else   {   analogWrite(A11,0);   analogWrite(A5,0);   Serial.print("S1");   Serial.print(" ");   Serial.print(distance1);   Serial.print("in");   Serial.print(" ");   Serial.print(" ");   Serial.print(cm1);   Serial.print("cm");   Serial.print(" ");   Serial.print(" ");    Serial.print("S2");   Serial.print(" ");   Serial.print(distance2);   Serial.print("in");   Serial.print(" ");   Serial.print(" ");   Serial.print(cm2);   Serial.print("cm");   Serial.println();   delay(700);   } } void loop() {   start_sensor();   read_sensors();   count_in_cm();   print_all();   delay(200); //This is the equivant of the amount of sensors times 50.  If you changed this to 5 sensors the delay would be 250. } flying drone code #include #include // channel declaration Servo channel1; // throttle Servo channel2; // yaw Servo channel3; // pitch Servo channel4; // roll Servo channel5; // ball drop servo // PWM freq setting, should it be 62.33Hz? const int PWMConst = 20022;//50HZ // global variables byte incomingByte, incomingByteUSB; byte rcBuffer[32], usbBuffer[12]; int i = 0, j = 0, STATE = 1; int Flag = 0, usbFlag = 0; unsigned int thr_16int = 0, yaw_16int = 0, pit_16int = 0, rol_16int = 0, gear_16int = 0; unsigned int thr_16int_usb = 0, yaw_16int_usb = 0, pit_16int_usb = 0, rol_16int_usb = 0; float throttle = 1000, roll = 1500, pitch = 1500, yaw = 1500; int gear = 1500; float currT, prevT = 0, _flagHover, throFlag; // functions declaration void extract_RC_cmd(void); void extract_USB_cmd(void); void translate_RC_cmd(void); void translate_USB_cmd(void); void RC_Neutral(void); void reset_usb(void); void reset_rc(void); void hover(void); void sonar(void); void setup() {   // setting registers   TCCR1A = _BV(COM1A1) | _BV(COM1B1);   TCCR1B = _BV(WGM13) | _BV(CS11);   ICR1 = PWMConst;   // set PWM I/O ports   channel1.attach(6);    // throttle   channel2.attach(9);    // yaw   channel3.attach(5);    // pitch   channel4.attach(10);    // roll   channel5.attach(11);   // fail safe-attit   //init usb buffer   usbBuffer[0] = 0x03;   usbBuffer[1] = 0xE8;   usbBuffer[2] = 0x0D;   usbBuffer[3] = 0xAC;   usbBuffer[4] = 0x15;   usbBuffer[5] = 0x7C;   usbBuffer[6] = 0x1D;   usbBuffer[7] = 0x4C;   reset_rc();   reset_usb();   Serial1.begin(115200);   // rc Rx data in   Serial.begin(115200);     // USB } void loop() {   // accept serial data from computer   if (Serial.available() > 0)   {     incomingByteUSB = Serial.read();     if (incomingByteUSB >= 0x03 && incomingByteUSB     {       usbFlag = 1;     }     if (usbFlag == 1)     {       usbBuffer[j] = incomingByteUSB;       j++;       if (j == 12)       {         usbFlag = 0;         j = 0;         extract_USB_cmd();       }     }   }   // accepte serial data from RC   if (Serial1.available() > 0)   {     incomingByte = Serial1.read();     if (incomingByte >= 0x80 && incomingByte     {       Flag = 1;     }     if (Flag == 1)     {       rcBuffer[i] = incomingByte;       i++;       if (i == 32)       {         Flag = 0;         i = 0;         extract_RC_cmd();       }     }     // Serial.print(rcBuffer[i]);   }   // STATE MACHINE   switch (STATE)   {     case 1:       translate_USB_cmd();       reset_rc();       //Serial.print();       break;     case 2:       translate_RC_cmd();       reset_usb();       //Serial.print('R');       break;     case 3:       landing();       break;     default:       RC_Neutral();       break;   }     // output PWM   channel1.write(throttle);   channel2.write(yaw);   channel3.write(pitch);   channel4.write(roll);   channel5.write(gear); } // local functions void extract_RC_cmd() {   if (rcBuffer[0] >= 0x80 && rcBuffer[0]   {     thr_16int = rcBuffer[0]     // Serial.print(thr_16int);   }   if (rcBuffer[4] >= 0x19 && rcBuffer[4]   {     yaw_16int = rcBuffer[4]     //Serial.print(yaw_16int);   }   if (rcBuffer[16] >= 0x09 && rcBuffer[16]   {     rol_16int = rcBuffer[16]     //Serial.print(rol_16int);   }   if (rcBuffer[20] >= 0x11 && rcBuffer[20]   {     pit_16int = rcBuffer[20]     //Serial.print(pit_16int);   }   if (rcBuffer[22] >= 0x21 && rcBuffer[22]   {     gear_16int = rcBuffer[22]     //Serial.print(pit_16int);   }   // state   if (rcBuffer[24] == 0x37 && rcBuffer[25] == 0xE0)    // Fmode SW state 1: Auto   {     STATE = 1;   }   else if (rcBuffer[24] == 0x34 && rcBuffer[25] == 0x00) // Fmode SW state 2: Manual   {     STATE = 2;   }   else if (rcBuffer[24] == 0x31 && rcBuffer[25] == 0xB4) // Fmode SW state 3: Emergency landing   {     STATE = 3;   } } void extract_USB_cmd(void) {   if (usbBuffer[0] >= 0x03 && usbBuffer[0]   {     thr_16int_usb = usbBuffer[0]   }   if (usbBuffer[2] >= 0x0B && usbBuffer[2]   {     yaw_16int_usb = usbBuffer[2]   }   if (usbBuffer[4] >= 0x13 && usbBuffer[4]   {     pit_16int_usb = usbBuffer[4]   }   if (usbBuffer[6] >= 0x1B && usbBuffer[6]   {     rol_16int_usb = usbBuffer[6]   }   // state   if (usbBuffer[10] == 0x2A && usbBuffer[11] == 0xF8)   {     //state = 1; // auto   }   else if (usbBuffer[10] == 0x2C && usbBuffer[11] == 0xEC)   {     STATE = 3; // emergency landing   }   else if (usbBuffer[10] == 0x2E && usbBuffer[11] == 0xE0)   {     STATE = 0; // default rc neutral   } } void translate_RC_cmd(void) {   throttle = (thr_16int - 30752 ) / 2.016;   yaw   = (9243 - yaw_16int) / 1.382;   pitch = (pit_16int - 3047) / 1.378;   roll  = (5129 - rol_16int) / 1.373;   gear  = (gear_16int - 7506) / 1.165;   throttle = min(2000, max(1000, throttle));   yaw      = min(2000, max(1000, yaw));   pitch    = min(2000, max(1000, pitch));   roll     = min(2000, max(1000, roll));   gear     = min(2000, max(1000, gear)); } void translate_USB_cmd(void) {   throttle = thr_16int_usb;   yaw = yaw_16int_usb - 2000;   pitch = pit_16int_usb - 4000;   roll =  rol_16int_usb - 6000;   //Serial.print(thr_16int_usb);   throttle = min(2000, max(1000, throttle));   yaw      = min(2000, max(1000, yaw));   pitch    = min(2000, max(1000, pitch));   roll     = min(2000, max(1000, roll)); } void RC_Neutral(void) {   throttle = 1000;   yaw = 1500;   pitch = 1500;   roll = 1500; } void landing(void) {   throttle = throttle - 1;   if (throttle   yaw = 1500;   pitch = 1500;   roll = 1500; } void reset_usb(void) {   thr_16int_usb = 1000;   yaw_16int_usb = 3500;   pit_16int_usb = 5500;   rol_16int_usb = 7500; } void reset_rc(void) {   thr_16int = 0x8000;   yaw_16int = 0x1C03;   pit_16int = 0x13FD;   rol_16int = 0x0C07; }

Posted by singno123 2 years ago


Electric Go Kart with Graphene supercapacitor. Random Questions on electronics, control, and possible problems.

I have a project in mind that i am trying to start on and it all has to be done as cheap as possible (ACAP). The project idea is that after my graphene in finished and I make the capacitors I will construct the battery and group the many cells in series and parallels until I have either 36 or 48 volts and a lot of amp-hours or at least enough to drive the kart with unrestricted speed for AT LEAST 10-15 minutes. The big question I have is whether i can treat these, essentially fast charging batteries, as batteries or if I must use different methods to control power and connect to the motor.  Then I also don't know how exactly i am going to control the motor or even what type of motor to use and where to obtain it. I was thinking i could use some industrial PMDC motor and I would like to control it using a PWM and use a plate that a contact touches that would slide up and down the plate to make the contact closer and farther away from the end on which a cable would be attached so it varies the amount of resistance to make a potentiometer. The closed throttle would just be a button that the pedal pushes to disconnect the power to the potentiometer at another point in the wiring. If that actually works then how would I make or where would I buy something that could actually use that and be able to handle thousands of watts (like 10,000W @36-48volts minimum).  My other throttle idea was that i could just have the pedal activate multiple solenoids so that there is like 5 stages of power activated by the solenoids. I have heard that problems with this is that when the first battery runs out you have to charge it otherwise it will be destroyed, though i am not sure if this will affect the graphene supercapacitors. If anyone know anything about graphene in applications please let me know because that would be way easier. The last thing is that since the graphene will be made on disks by laser scribing them could i just make the cells the shape of CD disks and then put the in one of those disk holders and then wire those to each other in series until i have the desired voltage and then in parallels until I run out??? If anyone has made graphene cells and used them please tell me where u obtained the Graphene oxide and how you made the graphene and cells and etc.

Asked by hopekiller30 4 years ago


1986 F150 302 EFI

.wont idle correctly, under throttle it skips, loses power like it's starving for fuel.  I've replaced, idler air control motor, ignition coil, cap and rotor, fuel tank, high volume fuel pump, plugs and wires and fuel pressure regulator.  Could it be the distributor itself or does anyone have a solution?

Asked by deej333 6 years ago


what do you do for the gas/air ratio on a weedeater 2-stroke? Answered

i made a motor bike and i rode it over 137 miles so far, it hasn't given me much problems except one day it lost compression so i rebuilt it and i put in a new sparkplug and rebuilt the carb after it was running better than ever and the next day i went to ride it and it wouldn't start so i cleaned the carb again, then it was working again but it was like there wasn't any gas, i used to be able to go 29mph now i can only go 16mph with the wind, if i give it too much throttle it will bog down and slow down, so i can only give 1/4 throttle. i have tried messing with the pin in the carb and the tuning screw but they don't seem to do any  thing, what is wrong?

Asked by BIGHAIRYDUDE 7 years ago



What kind of clutch can I use on a Home-built motorized bike? Answered

I'm converting an old mountain bike into a motorized dirt bike kind of thing using a small lawnmower engine. I want to know how to make a clutch that is simple and efficient.  Also I'm curious as to what kind of throttle will work on a lawn mower engine?

Asked by zilcho 7 years ago


What would be an easy way to make an electric go kart?

I need help making an electric go kart, any answers would be helpful from what kind of engine type (wet cell, dry cell, hub motors, etc.) to how to make an throttle ans steering for it. Thank you!

Asked by matt17fan 8 years ago


found possible parts for electric bike conversion ?

Hi! For €100 i can get an electric skateboard which has 3 12v 10AH batteries and a 600w motor with belt drive to the rear axle. Claimed top speed is 25km/h. Including is charger and throttle controller. could this be a good idea? I would need to mount the motor somewhere i still have no idea....

Posted by tjacobs5 2 years ago


remote linear actuator

   Hey everyone. I have a question about a  linear actuator that I'm putting on my sawmill to control the throttle. On a sawmill you either need to be full throttle or idle. I've already got the actuator mounted and it works great. Now I need a controller for it. I've got a keyless remote from a auto parts store that I would like to use. I also would like to have a hard wired button. The kicker is that I would like to be able to push a button on the remote or the wired button and the actuator go all the way out. And then push the same button and it come all the way in. The actuator has built in limit switches so it will stop on its on either all the way out or in. This may not be feasible for me to do but I was just thinking by using relays it may be. If I can't use just the one button then I'll have to use two. There should be no need for a stop button since the actuator has a limit switch at both ends. Thanks

Asked by papermaker007 6 years ago


50cc 2 Stroke Tuning? Answered

I have an old moped that I got for cheap and I am trying to fix it up. I replaced the carburetor and the new one is a little bigger even though it is off of another 50cc. It insisted on running extremely lean, but I was able to get the fuel/air mix balanced by putting some foil tape over part of the intake to get more vacuum behind it. It will only run right if the exhaust is on so that it is not lined up perfectly with the exhaust port on the cylinder. If the exhaust is taken off it will start first kick, but if it is lined up the way it should be it will not start. I took it off today and when I put it back on as close to the way it was before it would start but is now running very lean, beyond what I can tune out with the carburetor. If I give it full throttle it bogs and has no power, but it has fair power at 1/3 to 1/2 throttle. It also is getting really hot and has absolutely no power once it gets very hot. Yesterday I hat it all just right and it ran with none of these problems except that full throttle was still not where it got full power. Does any one have any ideas about what I have to do to make it run right? Maybe there is no option but careful misalignment of the muffler? --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- It turns out that the problems were that the muffler was clogged, and that it was running too lean at first, but too rich once it warmed up. Thank you for you suggestions.

Asked by Jaycub 6 years ago


I have a 33cc gas scooter and it starts but when I pull the throttle it cuts off. what could be causing this to happen?

I've already got a new carb,fresh gas with correct oil mixture, i replaced the piston and rings, yet i still find small amounts of oil on the spark plug, is this normal?  it starts and runs but cuts off when i try to ride it.       ????

Asked by japanda1 7 years ago


Reduce speed of an RC motor?

I took apart a RC helicopter and stripped everything so its just the motor operated by remote. I plan on attaching a camera to the end if the motor and my goal is to make a pan/rotate base mount thing. However even on the slowest speed (lowest on the throttle) the motor spins way to fast. Is there anyway to control the speed or slow it down? Please Help

Asked by jasonduiella 2 years ago


Why is my quadcopter toppling when i try to fly it?

I built a quad copter. I have done all the calibrations correctly (accel, compass, rc, esc). When I arm the drone, motors and propellers are spinning. But when i give more throttle to try to hover it, it doesnt fly upward steadily. Instead it lifts backwards and falls. Why is this happening? Should I change some PID setting?

Asked by prash319 2 years ago


197? can-am TNT 250

Hello all, I am in the process of fixing up an old Can am 250 from the seventies, and wanted to hear some of your reviews of this bike. Most people i know say that it was a beast, if you twisted the throttle the front would come off the ground, other people have said that it was a gutless hunk of junk. Thanks in advance for the feedback!

Posted by Steamdnt 9 years ago


Simple way to send large files over the net ? (390mb)?

I have tried so many different solutions, however all of them require payment, or have file size limits, or take WAY to long to upload because the server decides to throttle my upload speed to the point of Bytes/s. So if anyone has a solution please post. BTW I'm running Linux and the recipient is running winblows.

Asked by littlechef37 8 years ago


Quadcopter build help? multiwii is causing motors to twitch when throttle is applied

I have been working on a large X525 quadcopter kit/ w/ multiwii SE v2.5 from amazon, and have had success with configuring the multiwii for the quadX configuration, however, when I arm it and try to take off, all 4 motors ramp up to speed but then cut out and continue ramping up, particularly one motor, whichever is the lowest. Balancing the quad on 2 legs, the quad seems to want to stabilize, but keeps tetering violently since the motors keep randomly cutting out. I have tried to calibrate the ESCs by connecting them individually directly to the CH3 (throttle) receiver, powering up the Tx with the throttle high,plugging in the LiPo battery, and after hearing the jingle, lowering the throttle back down to the lowest position and waiting for the first few beeps before I unplug the LiPo battery and moving on the the next ESC. I was looking at the multiwii outputs through the software and they were in fact jumping around like crazy but after taking the props off the amount of twitching did go down a little, but still about 10-20% deviation in the bars of the software readouts. I've also tried dismounting the multiwii from the quad to eliminate the possibility of vibration from the motors from causing the multiwii to attempt corrections to the motor. though it seems to have the same for as long as I could tell because by the time I tested this, the multiwii board touched the power distribution board causing magical smoke to be released. Oops! Now the multiwii is completely dead all but the green power light which is directly connected to power Vin. The board and all the chips appear completely fine with no damage, and there is voltage to the main ATmega328, I don't know if I should try desoldering the ATmega and buying a replacement, or suck it up and buy a new $30 board. For all I can tell, I do not see how other sensors could have failed since the the exposed through-hole headers that likely touched the distribution board are directly connected to the multiwii's analog/digital input/output pins, I suspect that is all that went bad is the ATmega chip, even though if shows no sign of burning and does not overheat with power applied. Anyway while I wait, I thought I will ask about this problem to see if it is something simple like sensors calibration. (w/o motors operating, the output appears as it should!!!)

Asked by -max- 3 years ago


how much amp Min kota troll motors uses per hour? Answered

I need a boat that will be powered by a two wind mills and I will be using a Min kota troll motor to move it. I will charge the battery with AC day and night and only use it few hours a day. I will use a 100Ah deep cycle marine battery, How much these fishing motors use them in full throttle speed? thanks

Asked by celalboz 8 years ago


Instructable is still hung up.

Need a hand with an instructable again. It seems mine keep getting "hung up" in the filters. When this happens, they stay in limbo for a good long time, then when they're finally pushed through, they're already buried on page 32 of the "recent" list. I've tried E-Mailing Ed and randofo 2 days ago, but haven't gotten a response. Anyone have any ideas how to deal with this? Or what "filters" are in place so I can avoid having my instructable get throttled, then buried?

Posted by Javin007 8 years ago


How do i monitor battery voltage and adjust engine idle with a servo? Answered

This is a question about an onboard generator for a robot. Obviously id like to achieve homeostasis at around 12.5-13v. When my car battery reaches full capacity (13.8v) the servo releases the throttle. When it falls below 12v it increases idle to full. Im new to the game go easy on me im waiting on my pic programmer to get here let me know if theres an easy way to do it. -Brian

Asked by impellbm 9 years ago


Looking for help making a simple on/delay/off circuit.I? Answered

I am looking for help making a ( hopefully simple ) circuit to drive an electronic relief valve. What I have is a push button on a linkage and an electronically actuated valve. I'd like a circuit that, when the button is pressed, will supply a 12v output for roughly 500ms immediately after the button is pressed, which will then turn off. The circuit must then remain off while the button remains held, until it is released and hit again.  Linkage open / Valve closed > Linkage closed / Button pressed > Valve open 500ms > Valve closed / linkage remains closed > Repeat The system is for a turbocharged diesel engine. When the throttle is snapped shut, the boost pressure has nowhere to go. It tries to run back out the compressor housing. This results in a forceful drop in turbine RPM, and in extreme cases even completely stalling the turbine ( and blowing it to pieces ) I intend to vent this pressure back pre-turbo via a 2 inch valve. The short delay upon closing the throttle with this size of valve should be more than adequate. I also intend on wiring a boost pressure switch to disengage this circuit below 15psi. The turbo's anti-surge housing is effective at the lower pressure. Any help with the circuit would be GREATLY appreciated! 

Asked by jacob5680 5 years ago


Wiring 2 pots together?

Ok, so I am in the hobby of hobby grade rc. I am currently working on modding a ps2 racing wheel and foot pedals to work with a spare 2.4ghz remote I have for my cars. I got the steering wired up fine and it works good. Now for the somewhat tricky part. The foot pedals each have a potentiometer in them. They share ground and power, and have separate signal outputs. I have the right one wired in for the throttle just fine. On my micro car it was easy enough, just switch the throttle reverse switch and push the pedal and it goes in reverse. But most escs wont calibrate to that. How would I go about wiring them together? essentially I want to turn 2 pots into one big pot. So when I push the right one down it sends the signal for forward. When I take off the right one and push the left one down, it signals reverse. I could bring my micro controller into the mix, but I really dont want to for something that seems so simple. Plus it is on a serb right now. Any help?  Thanks

Asked by TOCO 6 years ago


how can i hack remote control of rc helecopter?

CHi , i need to control one of sticks (throttle) ,i used switch which chose arduino connected to channel or sticks connected to channel ,  i send pwm otput from arduino then  i used smoth circuit to make it true analog then  i connected it to switch but nothing happen at motors ,what is possible type of data voltage that sticks give so i can replace it by arduino voltage , how can i know voltage if  havent datasheets? il

Asked by britich 4 years ago


pulsejet night run

This is the simplest pulsejet you could make and costs only Rs.110 and has got a good throttling range,which you could see in the video..No need to strain much to start this engine it starts in a single attempt. this has really got good thrust,tried to show an cloth near it but i was not able to do it,so much of force from the exhaust pipe..one day i will hook it up to a scale and find out the real thrust.. note: at the end when i tried to show a cardboard the engine got few holes in the welded parts..  

Posted by ganuganu 6 years ago


What are some thoughts and suggestions on building an electronically controlled go-kart/dune buggy?

 Hello. I plan on building a go-kart that is completely electronically controlled. Basically I want to to be able to be controlled remotely but I will be riding in it. I will make sure to buy a kart with an automatic transmission and hydraulic disc brakes. Also I figure about a 200-300cc engine. I would expect the throttle and braking to be fairly simple. Steering not so much. Does any one have suggestions on how to get started and what parts I might need? Any help would be appreciated..

Asked by Paul Fjare 8 years ago