ESP32-S3 PWM Fan Board

Board to control up to four 5V PWM computer case fans.

• Espressif ESP32-S3
• USB-C port for programing the ESP32-S3
• 2.1mm barrel jack for power
• L78S05CV for 5VDC to power fans and LEDs, can take 8-35VDC in to allow a wide range of wall warts
• LD1117V33 to provide 3.3VDC for the ESP32-S3 and 3.3V peripherals from either the USB-C port or the barrel jack
• 4 KF2510 3+1P connectors for 4 Noctua NF-A20-5V PWM fans
• 4 relays as the PWM only reduces the fans to 30% power, not turn them off
• 1 KF2510 3+1P connector for 4 RGB LEDs
• 2 tactile switches for boot and reset of the ESP32-S3
• 3.3V to 5V level shifter for the LEDs
• 24 pin header
  • 3 pins for combination rotary encoder and switch for fan settings
  • 2 pins for 2 tactiles switches for fan settings
  • 2 UART pins
  • 4 JTAG pins
  • I²C pins
  • +3.3VDC pin, +5VDC pin, and a ground pin
  • 8 remaining GPIO pins