Like my Glowbug Project this PCB is designed to use WLED a firmware that works on many Espressif microcontrollers to handle LED effects and control. WLED is fairly extensible with various usermods to handle things like audioreactive light displays, OLED screen output, and so on. This particular PCB is setup to be small form factor but still have the main elements of a fully featured WLED PCB like a fuse, large capacitor, relay, and in addition uses a WCH 224K to allow for 5V 2A power delivery via the attached USB input. I’ve previously discussed the CH224K so opted to go that direction.

This smaller board has the following features:

• USB power delivery power
• Uses a relay to keep power consumption in check
• Uses a fuse to prevent issues
• Capacitor for the LED line
• 3 or 4 wire support for LED strips
• Level shifting the data and clock lines
• IR receiver