Building a Smart 4-Channel PWM Controller with ESP32 and High-Efficiency MOSFETs
This 4-channel PWM controller uses an ESP32 (for smart control), TC4427 MOSFET drivers, and CSD17573Q5B MOSFETs (for efficient switching). It delivers precise, adjustable power (up to 18V/10A per channel) with minimal heat loss. Features include WiFi/MQTT control, local button inputs, and gamma-corrected LED dimming. Designed for a 12V LED spotlight, it’s also ideal for motors, heaters, or lab supplies. Fully open-source—schematics, firmware, and 3D-printable enclosure files are available.
