- #Pi arduino i2c example two way data communication how to#
- #Pi arduino i2c example two way data communication code#
#Pi arduino i2c example two way data communication code#
The code running on Arduino : void setup() // initialize i2c as slave Serial.begin(9600) Wire.begin(SLAVE_ADDRESS) // define callbacks for i2c communication Wire.onReceive(receiveData) Wire.onRequest(sendData) // useless void loop() // useless // callback for received data void receiveData(int byteCount) int i = 0 while (Wire.available()) number = (char) Wire.read() i++ number = '' Serial.println(atoi(number)) if(atoi(number) != 0) caseN = atoi(number) int SonarSensor(int trigPin,int echoPin) // uselesss // callback for sending data void sendData() if(caseN = 1) Wire.write(distance1) else if(caseN = 2) Wire.write(distance2) else if(caseN = 3) Wire.write(distance3) else if(caseN = 4) Wire.write(distance4) else if(caseN = 5) if(state = 0) state = 1 digitalWrite(ledPin, HIGH) else state = 0 digitalWrite(ledPin, LOW) else Wire.write(0) I use an Arduino as I2C slave to treat some Ultrasonic sensors and send revelant data to a Raspberry.
Python i2c write_bus_data usageAardvark I2C VB programming issue… API is ambiguous with regard to WRITE functionArduino as slave with multiple i2c addressesI2C between RPI and Arduino using ProcessingRaspberry Pi as Slave in I2C and arduino as masterSending a JSON String via I2C between Arduino and RPi IOT C#How to read pot connected to arduino from Rpi using python and i2cI2C: Raspberry Pi (Master) read Arduino (Slave)RPi/Arduino I2C - Losing connection after some time (C++)Use Arduino Mega as I2C Slave with RPi3
#Pi arduino i2c example two way data communication how to#
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