What is Badgy?

Badgy is a rechargeable IoT badge with an e-ink display and WiFi connectivity.


  • WiFi Connectivity
  • USB Charging + Indicator LED
  • 5-way Tactile Switch for User Input
  • Built-in USB-Serial Adapter
  • Support for more E-Paper screens (optional jumper pad)

Size & Weight

Compact Design 3.9cm x 9.6cm (~ 1.5″ x 3.8″)
Lightweight 29g (~ 1.0oz)


2.9″ 296×128 E-Ink Display

Power and Battery

Compatible with Rechargeable Coin Cell Battery (LIR2450)
or Standard LiPo w/ JST-PH header breakout

Deep Sleep ~35 days
Light use ~21 hours
Heavy use ~5 hours
w/ 1000mah battery ~1 year

ADC to measure battery voltage (optional voltage divider jumper pad)

Support & Documentation

Visit for instructions, latest firmware, and additional documentation.