Build a Cloud-Free Smart Fan Using iroh and ESP32

An iroh powered smart fan

I built a smart fan using an ESP32 and iroh to control cooling without any cloud dependency. This project measures temperature with a DHT22 sensor and allows global remote access via a simple WebAssembly website. By storing keys in non-volatile memory, the device maintains a stable identity and connects directly to users anywhere in the world.

"Don't be afraid to get things wrong. Both the DHT22 and the ESP32 are pretty robust and forgiving for wiring mistakes if you correct them quickly!"