I have a Jetson Nano where I already have a Qwiic pHat V2 connected to a micro Oled breakout (Qwiic) and a Motor Driver (Qwiic). Motor Driver is powered by two 18650s. Now I tried to add a TFMini micro LiDAR (Qwiic) into this setup, but if I plug the LiDAR Qwiic cable into the Qwiic pHat my Jetson doesn’t start up. If I unplug the LiDAR, Jetson works just fine. What is wrong and how do I solve this?
The TFMini needs a lot of current to operate and I’m guessing that it’s loading down the Jetsons 3.3 volt power supply too much for the Jetson to operate. What you might try doing is rigging up a separate 3.3 volt power supply that’s capable of delivering an amp of current just for the TFMini and only connecting GND, SCL and SDA to the Jetson.