hi everybody .
i make two sketches , one for the master( to be integrated to the repetierfirmware and the second the slave for the arduino on the pcb for extruder .
in this way i need at the extruder PCB only the 12Vdc , 5V and GND + two wires for the I2C. likeyou told me i need also the step and direction signal for the stepper driver wich is mounted to the PCB.
so i can read the value of two hotend teperature, control 2x mosfet for heater, control 2x fan for hotend+ 2x fan for colling+ steper enable. on only 5 wires + stepper pule and direction.
my problem now is that i'm not sure in wich way i ca integrate (and how) the master sketch to the repetierfirmware .
I am grateful for every idea
thomas
NB i surely in the end i've to clenup the sketch from junk needed for controll
master sketch ------------------------------------------------------------------------------------------------------------------------------
/* I2C communication between arduino (repetier-firmware and remote Arduino
master unit
* the master will richiest 2 bytes from slave unit ( temperatur of TH1 and TH2 )
the master will send the state of 1 byte to the slave unit for fan and heater controll .
*
* read the values of two extruder temperatur firstbyte+secondbyte
* data
* control a mosfet for two heaters bit 0+1
* controll two hotend fan's bit 2+3
* control two fan's for print cooling. bit 4+5
stepper enable + reserve bit 6+7 bit 6+7
* pooling time 100ms
created by thomas greif 12/11/2019
note: the sketch has to be cleard up from controlfunctions
/
#include <Wire.h>
// set pin numbers:
const int buttonPin12 = 12; // the number of the pushbutton pin
const int buttonPin11 = 11;
const int buttonPin10 = 10;
const int buttonPin9 = 9;
const int ledPin6 = 7; // the number of the LED pin
const int ledPin5 = 6;
const int ledPin4 = 5;
const int ledPin3 = 4;
// variables will change:
int buttonState1 = 0; // variable for reading the pushbutton status
int buttonState2 = 0;
int buttonState3 = 0;
int buttonState4 = 0;
byte Data = 0; // data to send to slave
void setup() {
Serial.begin(9600); // inizialize serial only for control
Wire.begin(); // inizialize wire
// initialize the LED pin as an output:
pinMode(ledPin6, OUTPUT); pinMode(ledPin5, OUTPUT); pinMode(ledPin4, OUTPUT); pinMode(ledPin3, OUTPUT);
// initialize the pushbutton pin as an input:
pinMode(buttonPin12, INPUT);pinMode(buttonPin11, INPUT);pinMode(buttonPin10, INPUT);pinMode(buttonPin9, INPUT);
}
// main loop
void loop() {
Wire.requestFrom(7,2); // riechiest from slave(7) two bytes :
while(Wire.available()){
byte firstbyte = Wire.read(); // first Byte
byte secondbyte = Wire.read(); // second Byte
// print only for control
Serial.print(firstbyte);
Serial.print("+");
Serial.print(secondbyte);
Serial.print(" as Bin ");
Serial.print(Data, BIN);
}
Serial.println(); // next line
// read the state of the pushbutton value only for simulation
buttonState1 = digitalRead(buttonPin12);
buttonState2 = digitalRead(buttonPin11);
buttonState3 = digitalRead(buttonPin10);
buttonState4 = digitalRead(buttonPin9);
// check if the pushbutton if pressed the buttonState is HIGH:
// to be changed by the bit of repetier-firmware
if (buttonState1 == HIGH) {
// turn LED on:
digitalWrite(ledPin6, HIGH);
bitWrite(Data, 0, 1);
} else {
// turn LED off:
digitalWrite(ledPin6, LOW);
bitWrite(Data, 0, 0);
}
if (buttonState2 == HIGH) {
// turn LED on:
digitalWrite(ledPin5, HIGH);
bitWrite(Data, 1, 1);
} else {
// turn LED off:
digitalWrite(ledPin5, LOW);
bitWrite(Data, 1, 0);
}
if (buttonState3 == HIGH) {
// turn LED on:
digitalWrite(ledPin4, HIGH);
bitWrite(Data, 2, 1);
} else {
// turn LED off:
digitalWrite(ledPin4, LOW);
bitWrite(Data, 2, 0);
}
if (buttonState4 == HIGH) {
// turn LED on:
digitalWrite(ledPin3, HIGH);
bitWrite(Data, 3, 1);
} else {
// turn LED off:
digitalWrite(ledPin3, LOW);
bitWrite(Data, 3, 0);
}
bitWrite(Data, 4, 0);
bitWrite(Data, 5, 0);
bitWrite(Data, 6, 0);
bitWrite(Data, 7, 0);
// ende byte bitweise schreiben
Wire.beginTransmission(7);
Wire.write(Data); // prima byte da trasmettere al slave
Wire.endTransmission();
delay(100);
}
slave sketch ---------------------------------------------------------------------------------------------------------------------------------
/* I2C communication between arduino (repetier-firmware and remote Arduino
Slave unit
* the master will richiest 2 bytes from slave unit ( temperatur of TH1 and TH2 )
the master will send the state of 1 byte to the slave unit for fan and heater controll .
*
* read the values of two extruder temperatur firstbyte+secondbyte
* data
* control a mosfet for two heaters bit 0+1
* controll two hotend fan's bit 2+3
* control two fan's for print cooling. bit 4+5
stepper enable + reserve bit 6+7
* pooling time 100ms
created by thomas greif 12/11/2019
note: the sketch has to be cleard up from controlfunctions
*/
#include <Wire.h>
// impostazione
const int analogInPin = A0; // Analog input pin that the potentiometer is attached to
const int analogInPin1 = A3; // Analog input pin that the potentiometer is attached to
const int analogOutPin = 11; // Analog output pin that the LED is attached to
int sensorValue = 0; // value read from the pot
int sensorValue1 = 0; // value read from the pot
int outputValue = 0; // value output to the PWM (analog out)
int outputValue1 = 0; // value output to the PWM (analog out)
byte Data = 0; // recive data primo byte
// inizio setup
void setup() {
pinMode(10, OUTPUT); // set pin 10 as output
pinMode(9, OUTPUT); // set pin 9 as output
pinMode(8, OUTPUT); // set pin 8 as output
pinMode(7, OUTPUT); // set pin 7 as output
pinMode(6, OUTPUT); // set pin 6 as output
pinMode(5, OUTPUT); // set pin 5 as output
pinMode(4, OUTPUT); // set pin 4 as output
pinMode(3, OUTPUT); // set pin 3 as output
//pinMode(pulsantePin, INPUT); // set pulsantePin as input
Wire.begin(7); // start wire
Wire.onRequest(answer); // initialize answer
Wire.onReceive(recive); // initialize recive
Serial.begin(9600); // initialize serial communications at 9600 bps:
}
// end setup
// inizio ciclo
void loop() {
// read analog value and output at A0 on a 255 base
sensorValue = analogRead(analogInPin); // read the analog in value:
outputValue = map(sensorValue, 0, 1023, 0, 255); // map it to the range of the analog out:
analogWrite(analogOutPin, outputValue); // change the analog out value:
// read analog value and output at A0 on a 255 base
sensorValue1 = 300; // read the analog in value:
outputValue1 = map(sensorValue1, 0, 1023, 0, 255); // map it to the range of the analog out:
// analogWrite(analogOutPin, outputValue); // change the analog out value:
// wait 10 milliseconds before the next loop
delay(10);
}
// aswer for the master
void answer(){
Wire.write(outputValue);
Wire.write(outputValue1);
}
// end of answer
// recived data from master
void recive(){
Data=0; //set data to 0 in binario 00000000
while(Wire.available()){
Data = (Wire.read());
// print data as binary
Serial.println(Data, BIN);
// end print
// loop for output's
int i=0;
for (i = 0; i < 8; i++) {
if (bitRead(Data, i) == 1) {
digitalWrite(10-i, HIGH); // if 1 == out i on
//Serial.println("hight");
} else {
// turn LED off:
digitalWrite(10-i, LOW); // if 0 == out i off
//Serial.println("low");
}
}
}
}
