The sensor A VL53L8 is a continuation of a family of laser ranging sensors from ST. They use Single Photon Avalanche Diodes in an 8x8 array giving a pyramid of distances projected out from the sensor from ranges of 2-400cms. It can also do 4x4 with SW interpolation. I ordered a sensor (set) from ST. 511-SATEL-VL53L8 https://www.st.com/en/evaluation-tools/satel-vl53l8.html You get two sensors on breakout boards for your $27. This is good because w/o this fancy breakout board, you will be on the hook for generating 1.2 & 1.8v. Wired up to a modified Bluepill with an STM32L443 as a donor CPU, via some simple Dupont wiring, we can communicate with the sensor via I2C. SPI is also possible but the example code that ST provides that was used to debug the comm was I2C and this made comparing easier. Ada driver An Ada driver was crafted for the sensor. This was a translation of ST's API for the VL53L8. It was a job to translate it. There is 90k of FW that needs to get DL'd into the...