As I worked to troubleshoot the issue, it soon became evident that “I wasn’t in Kansas anymore”, and in fact had once again gone down a rabbit hole into Wonderland, with nary a bread-crumb in sight.
While working on porting Wall-E2’s ‘second deck’ hardware (VL53L0X array and LIDAR) to Wall_E3, I started running into problems associated with using Wire1 on the main Teensy 3.5 master processor to communicate with the Teensy 3.5 slave processor that manages the seven VL53L0X time-of-flight distance sensors.