is there a way to melt rubber and steel together?

I've been thinking about this for a long time. What I am wanting to accomplish is finding a way to combine steel and rubber together to form a new substance where the two are no longer able to be distinguished from each other.

Question by Jakcavar   |  last reply


Combining PC with.....A FAN!

This idea just popped into my brain last nite.Why not use strong automobile fans to cool the PC?Just mount it on the panel(geek points for duct tape)and off u go!Most engine fans run on 12VDC now and a pc has that,then SPLICE THE TWO TOGETHER!Advice and flaming will be appreciated

Topic by Derin   |  last reply


Combine 2 powerbanks for mobile

Hello, I have 2 old powerbanks that didn't have enough cappacity. So I want to combine the 2. But both have 5v 800ma output. So if I am afraid that the voltage or the ampere will be to high. How can I combine the 2 without damaging my phone? Sorry for my bad english. Greeting, Thijs

Topic by Thijsd4   |  last reply


flash drive and radio combined?

Does anyone know how to make an mp3 from portable radio and flash drive? thank you

Topic by redon12   |  last reply


Combining (Rewiring) Earphones Together

Hello! I'm having trouble rewiring my Ipod earphones. Currently I have two sets of nonworking earphones. One is an Ipod 3rd generation earphones. Pretty standard, ones you can find anywhere. The earbuds are completely busted on this one, and thus it does not work. The second one is Iphone earphones, and thus has a little mic component along the right earphone cord. This one, the bottom jack is completely busted. What I want to do this cut and combine the bottom 1 inch (including the jack) of my ipod earphone with my Iphone earphones. I understand this will render the mic capability useless. The ipod earphones have 4 wires inside, yellow, red, green, and red/green. The iphone ones have 6 wires. green, blue, yellow, red, red/yellow, and another yellow. How do I match these up to work? Thank you so much in advance!

Topic by lazda 


how to power multiple fans from a laptop? Answered

I'm currently working on a laptop to somewhat of a desktop conversion.  The laptop has really bad cooling so i have drilled into the case and added some big fans.  Its probably overkill yes, but if it works then who cares.   I've added two fans.  One is a 24V DC .20A fan and the other is a regular DC motor.  I'm wanting to power them from the laptop.  I'm not sure how to do that though.  I've tested them both separately on a USB and they are very slow and almost useless.  Is there a way to combine two USB ports for more juice?  Any ideas or suggestions?  Thanks.

Question by knex.gun.builder   |  last reply


Combining AC and DC on the one output?

I have a variable 0-12v DC output which has a maximum output of 1 amp. I have a fixed 16v AC output which has a maximum output of 1 amp. I am looking at how to combine the two so as to power a model with the variable DC output and also power lighting on the AC through a capacitor to filter the DC out. Also, I would rather it was nearer 6v AC at the output. Would this just be a matter of a simple step-down transformer before they are combined? Essentially, I am looking to replicate the functionality of this product for less than £42.95. This is too expensive especially when I need two of them.

Question by gkilgour   |  last reply


Panasonic Palmcorder and Webcamera combined into one?

Hello, I'm slightly new to this site but I love the heck out of it. I was wondering if it would be possible to remove the lens out of an old (from like 1995) panasonic palmcorder and put it into a webcam. I'm into brickfilming and I'm getting tired of my webcam's crappy foucus.Here is a picture of the lens from the palmcorder and all it's connections. [img]http://www.brickshelf.com/gallery/No-one-at-all/tests/dsc_0001.jpg[/img][img]http://www.brickshelf.com/gallery/No-one-at-all/tests/dsc_0002.jpg[/img][img]http://www.brickshelf.com/gallery/No-one-at-all/tests/dsc_0003.jpg[/img][img]http://www.brickshelf.com/gallery/No-one-at-all/tests/dsc_0004.jpg[/img]

Topic by -ddrblank-   |  last reply


Combining PSU rails for lab power supply? Answered

I recently received 2 old computers from friends for tinkering purposes. I'd like to take their PSUs and create a power supply for projects. However, they only have max outputs of 110W. So, I have a few questions: 1.) Is it possible to combine rails? 2.) Is it safe? 3.) What kind of power increase would I be seeing? Please try to answer all 3 individually.

Question by General Eggs   |  last reply


Would setting batteries in series combine their mAh? Answered

So say I have four 2,000 mAh batteries, and I set them in series. Would that give me 8,000 mAh?

Question by Sargebubbles26   |  last reply


Digital Logic Design Project Combinational Lock?

In this project you are required to design a 4 digits combination lock (not using arduino)  The project is such that it can be reconfigurable i.e. there should be an option that we can change the password of the lock at run time. Input to the system is from the hex keypad. Output of the system is ‘open’ and ‘close’ words displayed on a seven segment I used registers,flip flops, mux ,comparator  but couldn't get the desired result

Question by r_sammad   |  last reply


Can I combine 2 computers into one? Answered

I have 2 computers: 256RAM                       256RAM 40Gb hard disk          20Gb hard disk 1.3GHz processor     1.3GHz processor Can I somehow connect the 2 of them into a better one? I know I can take the RAM and the hard disk from one and attach them to the other computer,but I want to connect the 2 processors together . Can I do that?

Question by theVader75   |  last reply


can stepper motors be combined to double the amps?

I have four stepper motors connected in series to get 12v and more . Can I connect them differently for getting higher amps I think they currently put out like 30 ma each is there a way to increase this amp? thanks for sharing Al

Question by celalboz   |  last reply


Combine 2 (or 3) Joysticks to make one?

Okay I got 3 old Joysticks and lots of games that would be awesome to use DUAL JOYSTICKS. The joysticks use that old Joystick Port. So my question is if there is a way to join them into ONE set and be able to plug it into my computer. And if possible make it into USB?

Topic by itstemo1 


How to use batteries in a Series-Parallel Combination?

   Is it possible to use 4 AAA Duracell batteries instead of 2 AA batteries if I were to put it in some form of Series/Parallel combination? Would it keep the same voltage and stuff to not interfere with the electronics of something but just increase the time between changing batteries? What would the layout look like for this? Thanks Instructablers!

Question by ranaakamarth   |  last reply


can bridge rectifiers be combined to double the amps? Answered

Say we have 3 amp 3 rectifiers soldered would that function as 9amp rectifier or needed to be wired in a special way, series, paralel with other components? I am building an unknown power wind gen ans I gave 10   3 amp rectifiers. Thanks for sharing.. Al

Question by celalboz   |  last reply


Push button controlling different light combinations?

You know how with some flash lights and such, you click the button and one LED turns on, then you press it again and more turn on. How would I get a result similar to that? What I'm trying to do is pressing a N/O button once and LED 1 turns on then clicking it again and LED 1 turns off while LED 2 turns on. I've been scratching my head over it for a few days but I cant figure out how.

Question by Kruegem   |  last reply


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 && distance2 >=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 < 10)   {   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 < 10 && distance2 < 10)   {     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 <= 0x07)     {       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 <= 0x87)     {       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] <= 0x87) // double check throttle range   {     thr_16int = rcBuffer[0] << 8 | rcBuffer[1]; // 16 bit throttle     // Serial.print(thr_16int);   }   if (rcBuffer[4] >= 0x19 && rcBuffer[4] <= 0x1E) // double check yaw range   {     yaw_16int = rcBuffer[4] << 8 | rcBuffer[5]; // 16 bit yaw     //Serial.print(yaw_16int);   }   if (rcBuffer[16] >= 0x09 && rcBuffer[16] <= 0x0E) // double check yaw range   {     rol_16int = rcBuffer[16] << 8 | rcBuffer[17]; // 16 bit yaw     //Serial.print(rol_16int);   }   if (rcBuffer[20] >= 0x11 && rcBuffer[20] <= 0x16) // double check yaw range   {     pit_16int = rcBuffer[20] << 8 | rcBuffer[21]; // 16 bit yaw     //Serial.print(pit_16int);   }   if (rcBuffer[22] >= 0x21 && rcBuffer[22] <= 0x26) // double check gear range   {     gear_16int = rcBuffer[22] << 8 | rcBuffer[23]; // 16 bit pitch     //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] <= 0x07) // double check throttle range   {     thr_16int_usb = usbBuffer[0] << 8 | usbBuffer[1]; // 16 bit throttle   }   if (usbBuffer[2] >= 0x0B && usbBuffer[2] <= 0x0F) // double check yaw range   {     yaw_16int_usb = usbBuffer[2] << 8 | usbBuffer[3]; // 16 bit yaw   }   if (usbBuffer[4] >= 0x13 && usbBuffer[4] <= 0x17) // double check pit range   {     pit_16int_usb = usbBuffer[4] << 8 | usbBuffer[5]; // 16 bit pitch   }   if (usbBuffer[6] >= 0x1B && usbBuffer[6] <= 0x1F) // double check rol range   {     rol_16int_usb = usbBuffer[6] << 8 | usbBuffer[7]; // 16 bit role   }   // 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 <= 1000) throttle = 1000;   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; }

Topic by singno123   |  last reply



how do you make a laser beam combiner?

Im trying to combine a red and green to make yellow

Question by Jake Morton   |  last reply


Can I combine a Wacom tablet with a samsung tablet?

I have a wacom drawing pad and I was wondering if its possible to hook it up to a regular samsung galaxy tab 2 somehow.

Question by monsterlego   |  last reply


How do I combine multiple audio signals? Answered

I'm trying to splice in the output from an mp3 player into the microphone of Xbox headset. I've had no luck simply inserting it into the circuit, is there something else involved? Sincerely, Bean

Question by meanbean   |  last reply


Xbox battery charger and plug and play: combine the two? Answered

I'm looking to wire up a plug and play cord to a xbox battery charging station so the cord used to power the station would essentially charge two batteries and a controller. I've never dealt with USB charging, so any and all help would be great. Thanks in advance!

Question by DoctorWoo   |  last reply


Connecting/combining left and right audio channels together? Answered

Hi, I have something that can only take one channel but I am wondering if I can just connect the red and blue wires together in a audio cable so it will combine these both left and right channels into a single mono source (from the amplifiers point of view). Will this cause any problems with the audio source (phone) having both channels connected together like this? Will it damage the phone or anything like that? The main reason for doing this is the source (the phone) is stereo and some songs will have parts that are only present on one channel, which means that if it is not on the channel that is connected to my homemade lm386 based amplifier you wont here that part. Thanks.

Question by Alex1M6   |  last reply


How to combine 2 audio signals from HDMI

As I've known so far there aren't receivers that mix audio.I want to mix 2 HDMI sources, lets say 1 is a PS4 and second is Xbox One, how would I mix them in 7.1? Mix the 2 audio sources into 1, is there a way of doing that? What is the simplest way.I know that there are stereo mixers, but haven't heard of a HDMI one.What is the simplest way of mixing both signals?I think it might have something to do with modulating the signals, but I dont specifically know how modulators work.

Topic by MatanY2   |  last reply


Standby mode for an ASK RF transmitter and HT12E combination? Answered

Hey,     I am working on a project that uses the HT12E encoder to encode binary codes and an ASK RF transmitter that transmits the data at 433 MHz.It will be received by their respective counterparts i.e,HT12D and ASK RF receiver.The range is about 25 metres.The transmitter is at the roof of my house while the receiver is on the ground floor(The circuit is for detecting the water level in a tank). The transmitter is not required to transmit 24/7 but only when the receiver is switched ON.It can be achieved by making the transmission enabling pin of the encoder ic high when transmission is not needed but for that I would either have to go to the roof and turn the transmitter ON(which beats the purpose) or I'll need another transmitter-receiver pair which would occupy positions opposite to the pair that already exists.(It would essentially be a transceiver then). But I don't want another pair of transmitter-receiver and neither do I want the transmitter to transmit continuously . What I need is a solution to install a standby mode for the transmitter and are there any ways to do that keeping in mind the above requirements? Any help will be appreciated and thank you for reading my question.

Question by Adarsh_tronix   |  last reply




Combine two usb solar panels for higher wattage output

So, just thinking about this.  I have an anker 14w foldable solar panel.  I like it, but it seems to not quite have the wattage output that I would prefer.  What if I were to make cable that would join these two usb output sources into one.  Same voltage of course, just higher wattage potential. Again, just an idea.  Thoughts?

Topic by n5yzv   |  last reply


How can i combine these two instructables for halloween prop?

I am making a haunted house, and want my pneumatic props to be triggered once the laser beam is broken. I have followed the instuctable for a laser tripwire  https://www.instructables.com/id/Another-Arduino-Laser-Tripwire/ and the instructable for a 110v controller  https://www.instructables.com/id/Yet-Another-Arduino-110v-Power-Controller/ both work great seperately, however what i would like to do is have 4 lasers, and each one controls one of the 4 outlets. can anyone help me in code and schematic? i would greatly appreciate it. Sam

Question by Zukibeast   |  last reply


Arduino drum kit combined with piezo triggered led lights?

Being a broke person combined with massive curiousity, i've started taking interest in diy electronics. What i've been wanting to make is actually a drumset with tons of pads and cymbals and is not only a midi, but has its own sound. But, while there are many tutorials about it, there aren't any that match exactly what i wanna make. (I'm not even sure how many midi inputs can be made using an arduino) Sooo, being a newbie who's 100% confident she won't be able to make something as advanced as that without clear instructions (yet), i wanna start off by making a drum pad like yamaha dtx multi 12. I should be able to make something like that since i wouldn't have to worry about something like hihat controller. And i thought it would be awesome if i can attach led triggered lights! But i have zero idea what i have to do :/ which arduino do i use? Where do i wire them to? There's an instructable here about it but his drum is an acoustic drum so he's using the piezo entirely for led. I want my piezo to act both as midi trigger and led trigger. Anybody got an idea? Actually, i want to make 2 LEDs for each pads. The first LED lights up only when hit, the second one will continue to light but change colour when the kick pad is hit. But i'm not sure if this is doable

Question by Stelladevania 


Would this sound setup work? -Xbox 360/TV combination-?

Im thinking about making a simple headset/microphone combination for my xbox 360/TV would this work?The top is the standard Xbox-360 headset (the little brick is the volume control & switch for mic)The second is my standard headset 1= the volume control & a switch to go from headset to secondary sound (the little black impute to the left of the 1)The third is my setupRed = MicrophoneBlack = AudioThe thing I'm not sure about is that the standard xbox-360 headset has only 1 speaker... and i wish that my headset has BOTH speakers on the voice chat + the game sounds just pull out the cable on the controller to quit the sound from the voice chat (or pull out the TV to eliminate the sound from the game)The headset from the TV is just a regular headset that works with any TV/PC/MP3 player (3.5MM jack)It has two jacks (Audio, Microphone)PS:The -+ thingy is the volume control for the microphone & the on/off switch for it(The headset volume is controlled by the TV volume)YES, i will post an instructable for this -should it work-

Question by D4NG3RNL   |  last reply




Is it possible to combine the DIY projectors AND the DIY touchscreen (which needs a projector) ? Answered

Is it possible that this project : https://www.instructables.com/id/Interactive-Multitouch-Display/could use this projector ? http://www.hommie.net/construction.htm (or similar ones)

Question by miguelmx   |  last reply


about Combining solar power with Grid to reduce utility meter reading

Hello Friends, I want solution for utility metre reading. I have solar panel on my home and it charges battery. And all home appliances are works with AC power. I do want to combine energy from Solar battery and energy from company(grid) so that it will reduce energy from grid and alose reduce meter reading.

Topic by ysr1991   |  last reply


What voltages i can obtain from ATX by combine the outputs? Answered

I have not opened an atx, to measure the outputs to understand. I google it and i find like -12 with +12 you get 24V, -5v and +5V you get 10V but no one say all the outputs. What happens if i connect +12V with -3,3V, or others.

Question by danyelo   |  last reply


Hydrogen gas by combining electron- generating bacteria & small electrical charge...

Hi,Pennsylvania State University researchers last week announced that they have developed a method of producing hydrogen gas by combining electron-generating bacteria, acetic acid and less than .2 volt source in a microbial fuel cell. Info at this URL... http://afp.google.com/article/ALeqM5iXbROJgdF3_6BtG3TZFEs9hiw8CgI first heard about this last week on NPR's Talk of the Nation. Here is NPR link - http://www.npr.org/templates/story/story.php?storyId=16343702&sc;=emafThe researcher who led the project Bruce Logan, the director of the Hydrogen Energy Center there said last week on the show that this was actually a relatively simple process.He claims 90 percent efficiency. Also claimed is that the process produces 288 per cent more energy in hydrogen than the electrical energy that is added to the process.I would love to build one small scale and combine it with solar panels. Or maybe try to generate some hydrogen and try using it as a fuel supplement for my car using something like this - http://www.hydrogen-fuel.ca/ . Anyone willing to tackle this one?

Topic by nadsab   |  last reply


what is the brightest RGB combination of leds that won't need a heat sync?

I need to fit a red green and blue led on a <1inch diameter circle. It has to be EXTREMELY bright. BUT I can't give it a heat sync. Do I have any options whatsoever? It needs to be RGB. And REALLY friggin bright. It will basically go inside a dead glowstick. I really wanted to use high power leds, but this is looking like it will get to hot... Is there any way to almost get as bright as a high power led? What are my options?? Please help me! I've spent all day today looking online.

Question by SpiffyChee   |  last reply


How to combine AT and ATX power supplies to power same system (motherboard)?

Hello,   I am struggling to upgrade a certain medical system . The device I have contains an old motherboard which powered by an AT power supply. My problem is that the power supply board (which supplies the AT power) has other functions, and there's no way to be replaced (by an ATX PSU). I already bought the motherboard: http://www.ibase.com.tw/2009/MB970.html , with INTEL core i5 CPU  Cry Cry. I can't risk my power supply board in attempting to operate the new parts (motherboard, CPU, 4 Gb RAM, CPU fan, SATA harddisk, and DVD), I believe it won't stand that kind of power consumption. I know you'll say this won't work at all -I know, but I was thinking about using voltage regulators to generate the 3.3 v rail from the same AT power lines. OMG I really need help about: How I can connect the AT and ATX power supplies to this motherboard (and to the other parts), ensuring that I am not risking my AT power board at all?. Another headache is that the AT power board has to work at the same time with the motherboard. And in order for the system to work the AT power board has to work (you know that a feedback circuit should be completed) that's why it should be connected to the motherboard.   This really became a challenge for me. I can't stop thinking, planning, and dreaming about it. If you have any idea or any experience about this, I would like and hope to hear from you...

Question by muhammad.shamut.7   |  last reply



where can a step up/step down transformer be used? Answered

I want to know, I am just curious where a combined transformer would be used.

Question by nerd7473   |  last reply


Can I combine two Instructables accounts or move an instructable I made on one account into another?

I logged in with Twitter to build a new instructable, not remembering that my default account login was with Facebook. I really don't want to run two accounts. Can I combine? Or pull the instructable I just made into my old account?

Question by brianfit   |  last reply


Does anyone know how to crack a Masterlock Portable Combination Safe 5900

I was wondering if anyone in here is good at opening safes. Its one of my new hobbies and feels great when i can get into them. I am having trouble with a Masterlock Portable Combination Safe 5900. If anyone has any ideas to help me out or knows exactly how to please dont be shy and share your ideas. Thanks for reading everyone and hope someone can help me with this challenging safe Under is a link to the safe and specifics. http://www.masterlock.com/pdfs/Safe_Space_5900_Series_Instructions.pdf Message back asap. Thanks everyone

Question by m1stunna   |  last reply


is there some combination of voltage rails on an ATX power supply that could be utilized to provide 28VDC @ 8.3A?

I'm trying to find an inexpensive power supply solution for a LUXIM Li-Fi Plasma Lighting source. The RF generator requires 28VDC at 250W is there some combination of voltage rails on an ATX power supply that could be utilized to provide 28VDC @ 8.3A? is there a way that the voltage could be slightly boosted or cut by a couple of volts?

Question by jhvh.one   |  last reply


Can you frankenstein (combine) old computers together to make a faster and cheeper way to play games, if possible how? Answered

If someone has an instructible, is planning to post one, or has a link to a website on the subject please help my loptop is just getting old and i have two cpu's laying around could i put them together to make a faster one.

Question by zootsuitman   |  last reply


How can i combine these 3 codes?i'm completely new to arduino ?

Code 1: Ultrasonic sensor and LCD I2C Display #include #include #include #include #define I2C_ADDR 0x3F // <<- Add your address here. #define Rs_pin 0 #define Rw_pin 1 #define En_pin 2 #define BACKLIGHT_PIN 3 #define D4_pin 4 #define D5_pin 5 #define D6_pin 6 #define D7_pin 7 #define ECHO_PIN 11 // Arduino pin tied to echo pin on the ultrasonic sensor. #define TRIGGER_PIN 12 // Arduino pin tied to trigger pin on the ultrasonic sensor. #define MAX_DISTANCE 500 // Maximum distance we want to ping for (in centimeters). Maximum sensor distance is rated at 400-500cm. NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE); // NewPing setup of pins and maximum distance. LiquidCrystal_I2C lcd(I2C_ADDR,En_pin,Rw_pin,Rs_pin,D4_pin,D5_pin,D6_pin,D7_pin); void setup() { lcd.begin (16,2); // <<-- our LCD is a 20x4, change for your LCD if needed // LCD Backlight ON lcd.setBacklightPin(BACKLIGHT_PIN,POSITIVE); lcd.setBacklight(HIGH); lcd.home (); // go home on LCD lcd.print("Obst. distance"); } void loop() { unsigned int uS = sonar.ping(); // Send ping, get ping time in microseconds (uS). unsigned int cm = sonar.convert_cm(uS); // Convert into centimeters lcd.setCursor (0,1); // go to start of 2nd line lcd.print(" Distance:"); lcd.setCursor (0,3); // go to start of 4th line lcd.print(": "); lcd.print(cm); lcd.print(" cm "); delay(500); } code 2: PIR sensor with buzzer // Uses a PIR sensor to detect movement, buzzes a buzzer // more info here: http://blog.makezine.com/projects/pir-sensor-arduino-alarm/ // email me, John Park, at jp@jpixl.net // based upon: // PIR sensor tester by Limor Fried of Adafruit // tone code by michael@thegrebs.com int ledPin = 13;                // choose the pin for the LED int inputPin = 2;               // choose the input pin (for PIR sensor) int pirState = LOW;             // we start, assuming no motion detected int val = 0;                    // variable for reading the pin status int pinSpeaker = 10;           //Set up a speaker on a PWM pin (digital 9, 10, or 11) void setup() {   pinMode(ledPin, OUTPUT);      // declare LED as output   pinMode(inputPin, INPUT);     // declare sensor as input   pinMode(pinSpeaker, OUTPUT);   Serial.begin(9600); } void loop(){   val = digitalRead(inputPin);  // read input value   if (val == HIGH) {            // check if the input is HIGH     digitalWrite(ledPin, HIGH);  // turn LED ON     playTone(300, 160);     delay(150);        if (pirState == LOW) {       // we have just turned on       Serial.println("Motion detected!");       // We only want to print on the output change, not state       pirState = HIGH;     }   } else {       digitalWrite(ledPin, LOW); // turn LED OFF       playTone(0, 0);       delay(300);         if (pirState == HIGH){       // we have just turned off       Serial.println("Motion ended!");       // We only want to print on the output change, not state       pirState = LOW;     }   } } // duration in mSecs, frequency in hertz void playTone(long duration, int freq) {     duration *= 1000;     int period = (1.0 / freq) * 1000000;     long elapsed_time = 0;     while (elapsed_time < duration) {         digitalWrite(pinSpeaker,HIGH);         delayMicroseconds(period / 2);         digitalWrite(pinSpeaker, LOW);         delayMicroseconds(period / 2);         elapsed_time += (period);     } } CODE 3: MQ5 LPG gas sensor int sensor=7; int gas_value; void setup() { pinMode(sensor,INPUT); Serial.begin(9600); } void loop() { gas_value=digitalRead(sensor); Serial.println(gas_value); }

Question by aaryank4   |  last reply


security system (not responding after combining ultrasonic sensor code and esp8266 code )

The base of this project is https://www.instructables.com/id/SIMPLE-ARDUINO-ULTRASONIC-SENSOR-DOOR-ALARM-/ &http;://randomnerdtutorials.com/door-status-monitor-using-the-esp8266/ I changed according to my uses from above links I tryed by dividing into two parts one for ultrasonic sensor and other for esp8266 they worked fine while separating ultrasonic and buzzer are working in (Tools and wifi module is working in onlt(Tools when i mix ultrasonic and buzzer nothing happening) any idea here is the code #include #include #include #include #define USE_SERIAL Serial #define trigPin 9 #define echoPin 10 #define piezoPin 8 ESP8266WiFiMulti WiFiMulti; int normalDistance; boolean triggered = false; long duration, distance; void setup() {   USE_SERIAL.begin(115200);   pinMode(trigPin, OUTPUT);   pinMode(echoPin, INPUT);   pinMode(piezoPin, OUTPUT);   long duration, distance; while (millis() < 5000) {   digitalWrite(piezoPin, HIGH);       digitalWrite(trigPin, LOW); delayMicroseconds(2); digitalWrite(trigPin, HIGH); delayMicroseconds(10); digitalWrite(trigPin, LOW); duration = pulseIn(echoPin, HIGH); distance= duration*0.034/2;         normalDistance = distance;       USE_SERIAL.print("Distance: "); USE_SERIAL.println(distance);         digitalWrite(piezoPin, LOW);    for(uint8_t t = 4; t > 0; t--) {         USE_SERIAL.printf("[SETUP] WAIT %d...\n", t);         USE_SERIAL.flush();         delay(1000); } WiFiMulti.addAP("username", "pass"); } } void loop() { digitalWrite(trigPin, LOW); delayMicroseconds(2); digitalWrite(trigPin, HIGH); delayMicroseconds(10); digitalWrite(trigPin, LOW); duration = pulseIn(echoPin, HIGH); distance= duration*0.034/2; USE_SERIAL.print("Distance: "); USE_SERIAL.println(distance); if (distance < normalDistance-5) {       triggered = true;     }     else {         triggered = false;     }     if (triggered) {     tone(piezoPin, 635);     delay(500);     tone(piezoPin, 912);     delay(250);     if((WiFiMulti.run() == WL_CONNECTED)) {         HTTPClient http;         USE_SERIAL.print("[HTTP] begin...\n");                 http.begin("iftt link.........................."); //HTTP         USE_SERIAL.print("[HTTP] GET...\n");         // start connection and send HTTP header         int httpCode = http.GET();         // httpCode will be negative on error         if(httpCode > 0) {             // HTTP header has been send and Server response header has been handled             USE_SERIAL.printf("[HTTP] GET... code: %d\n", httpCode);             // file found at server             if(httpCode == HTTP_CODE_OK) {                 String payload = http.getString();                 USE_SERIAL.println(payload);             }         } else {             USE_SERIAL.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());         }         http.end();     }     } } any idea about whats going on Thanks Hemanth

Topic by hemanth kumar reddy   |  last reply


All in One Keyboard ? Answered

Is it possible to combine all these features in one unit.  i)    Keyboard,  ii)    Touchpad/Trackball,  iii)    FingerPrint Reader,  iv)    Microphone,  v)    Speaker,  vi)    Card Reader,  vii)    IR,BT(optional).

Question by FAisalShafi   |  last reply


Why do the first few steps work in this link?

Http://www.ehow.com/how_4840368_crack-combination-master-lock.html why does this work to find the third number? what's going on inside the lock?

Question by mastr924   |  last reply