HI
I am trying to control an ADS1115 ADC board from a NodeMCU ESP8266 board.
I have connected everything up correctly, but I am not getting data out of the ADS1115.
I am using the rWire library as I understand that that is the I2C equivalent for B4R.
Do the rWire calls take care of all the handshaking that appears to go on with the I2C bus?
I am still getting my head round the whole I2C protocol.
The core of my code is this:
and to get the result, I do:
I appear to have all the connections correct between the two chips.
Thank you for your help.
JMB
I am trying to control an ADS1115 ADC board from a NodeMCU ESP8266 board.
I have connected everything up correctly, but I am not getting data out of the ADS1115.
I am using the rWire library as I understand that that is the I2C equivalent for B4R.
Do the rWire calls take care of all the handshaking that appears to go on with the I2C bus?
I am still getting my head round the whole I2C protocol.
The core of my code is this:
B4X:
master.Initialize
master.WriteTo2(SLAVE_ADDRESS,True, Array As Byte(0x01)) 'Point to the Configuration Register
master.WriteTo2(SLAVE_ADDRESS,True, Array As Byte(0xc2)) 'Hi 8 bits - continuous mode , single ended input, A0
master.WriteTo2(SLAVE_ADDRESS,True, Array As Byte(0xe3)) 'Lo 8 bitsand to get the result, I do:
B4X:
master.WriteTo(SLAVE_ADDRESS, Array As Byte(0x00))
Dim b() As Byte = master.RequestFrom(SLAVE_ADDRESS, 2)I appear to have all the connections correct between the two chips.
Thank you for your help.
JMB