Hi @Myles-Levine ,
I just want to double check something to make sure there is no confusion.
The lepton sensor is an IR (thermal) camera. it does not measure range. The lepton sensor plugs into the large square socket that is mounted to the M0157 / M0187 board (they are very similar). The infrared TOF sensor is a smaller (rectangular) sensor, which is marked as U1 on M0187 : https://docs.modalai.com/M0187/ .Have you checked whether the Lepton sensor is working using voxl-portal, which would allow you to look at the IR image coming from the sensor?
Alex