I'm currently faced with having to decipher this wire diagram and connect it to an ArduinoUNO; unfortunately, I am a complete electronics newbie and do not know how to set this up correctly. This is a circuit for operating a TEC (Peltier cooling module) controlled by an ArduinoUNO.
Here is the associated code:
const int therm = A0;//thermistor
const int VDD_GOOD = A1;//logic voltage check
const int VM_GOOD = A3;//motor voltage check
const int VD = 10;//digital 5V for logic level and thermistor
const int VM = 9;//Power 12V for TEC
const int TEC = 11;//TEC power mosfet
const char delimeter = ',';
const String msgTag = "m";//to write messages to tablet
const String dataTag = "s";//to write data to tablet
const String endSig = "\n";//to end a transmission to tablet
const float bound = .3;// +/- overshoot on temp
const float A = .001129148; //thermistor constants
const float B = .000234125;
const float C = .0000000876741;
const float R = 9890.0; // Resistor value used in thermistor circuit
const float Temp_Limit[] = {48.0,90.0};
const float TIMEOUT = 10000.0;// Timeout for TEC when it's trying too hard and not getting anywhere.
SoftwareSerial xSerial(3,4); //Rx, Tx
int userData[20] = {};
I've connected "Thermistor signal" to A0, "Vdd_good" to A1, and "Vm_good" to A3.
I'm wondering where "+5V from arduino here" goes to (the code says it goes to Pin #10).
I'm also confused as to where "Power positive" connects to (the code says Power 12V for TEC at Pin #9).
Finally, what is the purpose of the control signal/ground?
Apologies for being almost clueless.. if anyone could give me a hand here that'd be awesome.