Whether you’re really passionate about RPC, MQTT, Matrix or wayland, tell us more about the protocols or open standards you have strong opinions on!
Whether you’re really passionate about RPC, MQTT, Matrix or wayland, tell us more about the protocols or open standards you have strong opinions on!
If you have an unused VGA port, you can use the DDC pins for I2C. Be sure to add ESD protection if you do this. An I2C isolator would be even better.
I2C is really not meant to be used over cables. It has a very limited common mode input voltage range and it can’t handle much capacitance on the bus.