I have a project where I would like to have 4 distance sensors arranged around the sides of a robot, that is powered by the moto:bit board. I have had no issues using the I2C port so far, with a QWIIC breakout cable.
This QWIIC distance breakout looks ideal: https://www.sparkfun.com/products/14539
However, since I need 4 of them, I wonder if there is any way to change the I2C address on it.
I guess I could use 8 port QWIIC mux?
Hi gpvillamil,
The RFD77402 does not have an address select pin like other I2C devices so you cannot adjust the slave address for this particular distance sensor. In order to use more than one of these on the same I2C bus, you will need to use something like the [Qwiic Mux Breakout.
The [Hookup Guide will go over the basics as well as some example code to get started. The example is set up to work with an accelerometer breakout but can be adjusted to have it work with the RFD77402 breakout instead.
I hope this helps you get multiple Qwiic Distance Sensors working on a single I2C bus. If you have any other questions about this sensor, please reply to this thread and I would be happy to help as much as I can.](Qwiic MUX Hookup Guide - SparkFun Learn)](https://www.sparkfun.com/products/14685)
I attempted to put an I2C OLED (SSD1306 ) on the Moto:Bit, address: 60 and neither the car or OLED work. I take the OLED off either the QWIIC or the I2C Pins) and the car immediately work. I tried address 7A/122 and the same thing. However, after removing the OLED the car works. While the car is driving (on a stand) I put the OLED back in the car still functions but the OLED still does not.
Any thoughts?
Which distance sensor are you using?
It appears my display died. Tried another I2C display and I2C RTC and both work.