RGB LED nametag

Electronic name badge with RGB-LEDs


KiCad 3d rendering of RGB nametag PCB


  • 1x STM32F7 taking care of power management, USB and display multiplexing
  • 1x ESP32 Pico D4 providing a web interface to build and store animations
  • 20x HC595 shift registers for row and column control
  • 768x Tiny 1x1mm RGB LEDs arranged in 1.7mm pitch grid


  • only 84mm wide and 29mm tall
  • WLAN enabled
  • 48x16 glorious RGB led pixels with more than 16 million colors each
  • Powerful ARM Cortex M7 and Xtensa 32bit dual core
  • 3MB of onboard data storage