An ultra-compact (40x40mm) ESP32 smart fan controller PCB. Features 4-channel 12V PWM control, Wi-Fi / Home Assistant (ESPHome) integration, and ultra-silent 0-RPM mode. Perfect for SFF PC builds, NAS ...
Turn an ESP32-C3 SuperMini into a network health dashboard with Wi-Fi signal monitoring, DNS checks, and an OLED interface.