Photographing lightning with a DIY lightning trigger (emf2026)

Last year I went on a storm chasing road trip, aiming to capture some photos of lightning. I had a DSLR camera, a microcontroller, some wires, a light sensor and some spare time. How hard could it be to make my own lightning trigger? And would it even work? A beginner-friendly guide to creating electronics with lightning-fast reaction times, and an excuse to share some holiday pics. Licensed to the public under https://creativecommons.org/licenses/by-sa/4.0/ about this event: https://www.emfcamp.org/schedule/2026/41-photographing-lightning-with-a-diy-lightning-trigger