TCA9548A I2C Multiplexer "utility/twi.h" error

Official Hardware MKR Family MKR WiFi 1010
1

Hello,

I am trying to connect 3 I2C sensors (BNO055) with the same address, to do this I am using the TCA9548A multiplexer breakout board from Adafruit. Following the Adafruit tutorial I am trying to run the first code which tells you which ports of the multiplexer the I2C sensors are on. But when I run the compiler I get an error saying no "utility/twi.h" available in directory. I have seen some other threads which have similar problems but no real solution. Is this a problem with the MKR wire library, am I calling the wrong library? Has anyone successfully used a I2C multiplexer with the MKR1010?

2

The utility/twi.h file is specific to the Arduino AVR Boards Wire library. The Arduino SAMD Boards library doesn't have that file. I don't know whether there is any equivalent to the AVR library's twi_writeTo(). The files in the untility folder are not meant to be part of the public interface but it seems there are some useful things in there.

3

This looked quite useful in regards to I2C.
Maybe not your answer but good reading all the same.

Yes its for the MKR1000 but thats the same SAMD mcu.