This means that if you dynamically change the address of the receiving Arduino device then you would also need to synchronise the master to know what address to use. Its implementation uses a single set of global resources. I want to sent two different types of data on two different I2C addresses.Īrduino's Wire library is designed to have a single I2C address per device. Is there a way to get the output like this? And is there a way to fix the output from stopping after a short time? The expected output is out there, but not in a consistent way like: 5 The output I get also stops after a short time: 5 Serial.print(d) /* print the character */ function that executes whenever data is received from master Wire.begin(9) /* join i2c bus with address 9 */ Wire.onReceive(receiveEvent1) /* register receive event */ Wire.begin(8) /* join i2c bus with address 8 */ Serial.begin(9600) /* start serial for debug */ Wire.beginTransmission(8) /* begin with device address 8 */ Wire.begin(5, 4) /* join i2c bus with SDA=D1 and SCL=D2 of NodeMCU */ Serial.begin(9600) /* begin serial for debug */ I have written these two codes, they somewhat do what I expected but the result isn't consistent. Datatype 1 are integers and datatype 2 are chars. I want to sent two different types of data on two different I2C addresses. I have a master-slave setup consisting of a nodeMCU(master) and an arduino nano(slave).
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