### BEC and Semi Conductors

Hey everyone, I don't know if this is right, but today I came to the conclusion that everything in the universe is a conductor or a semi conductor. Is this right? I was thinking if you were to turn something into BEC (Bose-Einstein condensate), (which I know is at the moment impossible), the electrons/current should be able to move through the substance without any resistance. With this being said, couldn't any thing and everything become a perfect conductor if reaching absolute zero is possible? This is just a thought, but I am very interested to find out for a science class I'm taking.                                                                             Thanks for your time KayakKid.

Topic by Kayak Kid 5 years ago  |  last reply 5 years ago

### How does a BEC work?

I was wondering how a BEC (Battery Eliminator Circuit) for RC cars works.   I know it has 2 wires for the motor, a connector for the receiver, and wires for the battery.  But, I don't know how to connect it.  If someone could explain it, I would appreciate it very much.  Thanks in advance.

Question by jules15 8 years ago  |  last reply 8 years ago

### I have ESCs with mode Linear; can I use them for my motors?

I recently bought 4 ESCs for my 4 brushless motors. THe ESCs are 20Amps. However, I found out that they have BEC mode linear and I might need an external BEC to power my receiver. Now my question is; lets say I am not using a receiver, I am using xBee mdules, which are going to be powered by arduino. Do I still need the BEC? Also, how would I power the arduino which needs 5Volts. Do I put a seperate battery for it?

Question by Bam Boy 5 years ago  |  last reply 5 years ago

### Whats the diffrebce between BEC and UBEC?

Hi, i am putting together a robotics kit with lipo batterys. I need a lipo cutoff. From my understanding both BEC and UBEC are lipo cutoffs. I am not sure about what the function of both of them is but from my understanding BEC is a cut off that supplys the battery voltage. I think that UBEC is a lipo cutoff that also has a voltage regulator for powering servos. Please correct me if i am wrong and explain what they both do. Thanks, David.

Question by David97 6 years ago  |  last reply 6 years ago

### How can I make a DC to DC step down voltager regulator?

I want to make my own BEC (battery elimination circuit) for my RC helicopter, so that I don't have to spend \$50 and buy one. I'm also very impatient when it coming to waiting for things to arrive in the mail. I have some basic electronic parts.  I have some N-channel MOSFETs, Diodes, Resistors, OP-amps, and comparators, A butt load of Capacitors, My helicopters ESC(electronic speed controller) uses a 11.1v Lithium Polymer(LiPo) battery, but my RC receiver can only handle 6volts Maximum, at about 2-3Amps. I don't have any wheels, so I can't exactly run out to my nearest RadioShack to buy an LM317 voltage regulator. so I'm here to ask if anyone knokw how to build a [step dowm voltage regulator] from basic components? Schematics ,and parts list would be appreciated. I have no idea how much current the LiPo battery is pushing, it exceeds the max range of my Multimeter which is 10Amps. fried couple of diodes, and blew the fuses it trying to measure the raw current. I need help please.

Question by alien200049655 6 years ago  |  last reply 6 years ago

### Powering 6-8 Servos simultaneously?? Answered

I am currently working on a project that involves 6-8 servos, that all need to be powered at the same time. What would i use for this? The power supply on the "robot" of sorts will be a 11.1v Li-Po battery (Will update with mAh/any other info needed on the battery in a few days, i do not currently have it on me). Is there any BEC/UBEC capable of doing such a task? Could i use a combination of more than one (Three UBECS off of the same battery, all in parallel)? The servos that i am using are TowerPro MG995 Digi Speed servos. On a slightly different topic, are there any BECS/UBECS that can monitor the battery's voltage, and shut off when it drops below a certain voltage? Links would be great Thanks!

Question by RocketPenguin 4 years ago  |  last reply 4 years ago

### wht light materials can a simple dc car motor carry, bec. it cant even carry a small cardboard, wht can it carry??

Iam planning to make a robotic arm, and the problem is that my simple dc toy car motor cant carry light stuffs like a cardboard, so what home materials the motor carry??

Question by DELETED_zerofreak 9 years ago  |  last reply 9 years ago

### Print data to thermal printer using arduino

How can i print or display data on the thermal paper using thermal printer and arduino? what command should i use bec. the serial.print and serial.write doesn't work, nothing happens.. here is my sample code in arduino. void setup() {   Serial.begin(9600);   delay(1000);   Serial.print("Hello"); } void loop() { }

Topic by poohspongebob 7 years ago  |  last reply 6 years ago

### HELP....Flysky with arduino

Hello, Basically i am making a robot for a competition called "robowars". I want to control the robot with the transmitter i.e. the flysky transmitter, like if i want a rotating disc to cut someone, or a hammer, etc i will have to control it with the transmitter right and i want to use the arduino for this, for example, to change the speed of the disc or change the speed of thee robot itself.I want to read the stick values and assign them for different tasks. My robot is about 15 kg, so i need a high power battery to run it, . I guess i can use a BEC for this....i just need help in reading the stick values from the transmitter.Please help in the hardware and software. I am using an ARDUINO MEGA 2560. I am totally new to robotics and have no experience so[b] please [/b]help. I need the code and the connections. Thanks in advance

Topic by vkarpuram 7 years ago  |  last reply 6 years ago

### ESC,Battery,Motor selection for quadcoter

Hi, I am a beginner to build a quadcopter. so please help me in selecting ESCs , lipo Battery and Motor to make my own. I details of the parts are listed below : Brushless Motor : Brand: Racerstar Item name: BR2205 2600KV Brushless Motor RPM/V: 2600KV Height: 31.5mm Width: 27.9mm Shaft diameter: M5 Motor mount hole size: M3 Weight: 28 grams Voltage: 2-4S Battery: 2-4S lipo battery Max.current: 23.2A Max.power: 710W Internal resistance: Ω Usage: for 250 260 280 Multirotor Frame Kit Lipo Battery : Brand : Lion power  Configuration :  3S 11.1v Maximum continuous discharge rate : 30C Capacity : 4200MAH ESC : Sustaining Input Voltage: 6-12V BEC Output Current: 5V/3A Continuous Output Current: 30A Max Current: 35A/12s  I just tested a brushless motor mentioned above with the esc and battery while the motor is running for about 10 seconds the esc is burnt.So is to possible to build a quadcopter with the parts listed above please help. Thank You

Topic by rsudhar00123 1 year ago  |  last reply 1 year ago

### Coin Slot to Arduino... Need Help. What to do?

Hey guys, been doing one of the project in instructables w/c is this https://www.instructables.com/id/Make-Money-with-Arduino/ Interfacing a Coin Slot to a Arduino. Read and done the instructions provided in the project. But there seems to be a problem bec. i can't seem to get the desired output. I have a Coin Slot w/c was already set to 3 different types of coins (P1, P5.00, P10.00)(Philippine Coins) Set it up according to the instructions of the project, "COIN" white wire connected to pin2 (interrupt pin 0) of the arduino, common ground connection of the arduino and the coin slot (12V), and for an easy way to see the output i put up 3 LEDs on pin8, pin9, and pin10. This is the code i used, (modified)(original comments still there) -- const int coinInt = 0; //Attach coinInt to Interrupt Pin 0 (Digital Pin 2). Pin 3 = Interrpt Pin 1. volatile float coinsValue = 0.00; //Set the coinsValue to a Volatile float //Volatile as this variable changes any time the Interrupt is triggered int coinsChange = 0; int OneLed = 8; int FiveLed = 9; int TenLed = 10; //A Coin has been inserted flag void setup() {   pinMode(OneLed, OUTPUT);   pinMode(FiveLed, OUTPUT);   pinMode(TenLed, OUTPUT);   Serial.begin(9600);                 //Start Serial Communication      attachInterrupt(coinInt, coinInserted, RISING);   //If coinInt goes HIGH (a Pulse), call the coinInserted function //An attachInterrupt will always trigger, even if your using delays } void coinInserted()    //The function that is called every time it recieves a pulse {   coinsValue = coinsValue + 1;  //As we set the Pulse to represent 5p or 5c we add this to the coinsValue   coinsChange = 1;                           //Flag that there has been a coin inserted } void loop() {   if(coinsChange == 1)          //Check if a coin has been Inserted   {    if (coinsValue == 1)     {        digitalWrite(OneLed, HIGH);        delay(1000);        digitalWrite(OneLed, LOW);     }     else if (coinsValue == 5)     {        digitalWrite(FiveLed, HIGH);        delay(1000);        digitalWrite(FiveLed, LOW);     }     else if (coinsValue == 10)     {        digitalWrite(TenLed, HIGH);        delay(1000);        digitalWrite(TenLed, LOW);     } //Print the Value of coins inserted   coinsChange = 0;   } } -- Rather than using microsoft express, i wanted to use simple LEDs on pin8, pin9, and pin10 to indicate if the program read the input correctly. after doing the wiring, and coding in the arduino, i tested to see if it would work. NONE of the LEDs light up after inserting coins on the coinslot. Need Help! :X

Question by Gedon 6 years ago  |  last reply 16 days ago