# On Air R2 ## Description R2 changes: -Moving to Letter Modules for ease of design -Adding ESP32 for WiFi On/Off and intensity control -Optional: Add unpopulated AA Battery Holder for battery option R1 changes: -Changed LED part to Red LEDs -adjusted resistor value of buck converter -Changed source for USB-C Connector -Removed exposed soldermask on buck converter with negative soldermask expansion -Order with black soldermask Modified by markwu2001: Adjustable Brightness, 85-90% Drive Efficiency <5W Operation (Can use 5V 1A Plug) This project can be purchased from LCSC Original Description: Daddy's second circuit board. A sign to let my wife know when I'm on a call. Activates with a slide switch and is powered by USB-C. #template ## Project Details - **Owner:** jpmarint - **Created:** 8/4/2024 - **Last Updated:** 8/4/2024 - **Visibility:** Public - **Copies:** 1 *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/jpmarint/on-air-r2~9x](https://www.flux.ai/jpmarint/on-air-r2~9x).* --- *Generated from [https://www.flux.ai/jpmarint/on-air-r2~9x](https://www.flux.ai/jpmarint/on-air-r2~9x)*