I recently bought a 2 device set VL53L0x from STM, and soldered my own Grove connector to it. The shut down signal from the VL53L0x is attached directly to Vdd.
When I connect this setup to the GrovePi (with latest firmware), the GrovePi stops working: I2cDetect does not get a 04 detect anymore and the VL53L0x does not get detected at its standard 29 address. When I use a Switchdoc Labs Pi2Grover, I can detect the 29 address and interact with it. So my connector is soldered correctly and the device is functional, meaning the problem lies with the GrovePi.
What is special about the GrovePi that makes it go non-operational when attaching a non-Grove item to the I2C bus?
(The same with the HDMI to LVDS hub of the PiTopCeed: when that one is attached, the GrovePi is not operational)
found the paragraph about adding custom sensors. But that probably doesn’t change the fact that the GrovePi+ address of 04 should be visible by I2CDetect when a custom sensor is attached.