This tutorial tries to teach you how to program computers.
All you need is an ESP32 and In 15 minutes, it can be breathing in your hands.
Most people need to order a small computer first
A tiny computer called an ESP32 (~$12)
A small computer with WiFi & Bluetooth. Yours to keep forever — reprogram it, build with it, learn from it.
Order it, bookmark this page, come back when it arrives
Tap each item when ready
A popup asks to connect to a device
Look for "USB Serial" or "CP210x"
Watch the progress bar
That light in your hand is your code running. No internet needed. It's yours.
Try a different USB cable — most only charge, can't transfer data.
Try a different USB port. Unplug, wait 5 sec, replug.
Unplug and replug the ESP32. Try flashing again.
Email wja326@lehigh.edu — I want to help.
CRUMB teaches electronics by doing. Genesis Zero proves you can program a computer in 15 minutes. The barriers were never real.
Do, then understand. No gatekeeping — all code is public. Yours forever — no subscriptions, no accounts.
GPL-3.0. Use it, modify it, share it, build on it.