Physical Hardware & Smart Gadgets · Standard
How many came through the door
A sensor over a doorway counts people in and out. It stores a number and nothing else — no camera, no faces, no recording of any kind.
- Parts
- $40
- Effort
- 6 days
You end up withA mounted counter and a week of real footfall you can hand to a funder.
What you will use
- VL53L1X
- Raspberry Pi Pico 2 W
- MicroPython
- CSV export
Grounded in
Adafruit VL53L1X time-of-flight sensor$14.95 laser distance sensor. It measures distance, not images, which is why this can sit over a food bank door without becoming a surveillance question.
Enroll and build this — $950
You make the real choice at the end of week one.