nRF52840-Based Smart Badge with Bluetooth, Thread Mesh Network, 2.9" ePaper Display, Neopixels, Shitty Add-On support, and more!
- pcb2 - 2020 Badge PCB
- pcb/badge - 2019 Badge PCB
- pcb/svg2mod - svg2mod with some patches
All PCBs were designed using KiCad.
- nRF52840 64MHz ARM Cortex-M4F64 CPU with 1MB flash, 256KB ram, USB, Bluetooth Low Energy 5, Thread, and Zigbee
- GDEW029T5 2.9 inch e-paper glass display
- LIS2DH12 I²C Accelerometer
- W25Q128JV 128MBit Serial Flash
- Shitty Add-On V1.69BIS Connector
- 8-Pin extension slot (on the back)
- 5 x 6mm Push Buttons
- 2 x WS2812B "NeoPixel" Addressable RGB LEDs
- 1 x Green Indication LED
- Reset Button
- Vibration motor
| Pin | Component | Function |
|---|---|---|
| P0.00 | Extension Slot | D2 Pin |
| P0.01 | E-Paper | SCLK |
| P0.02 | Pushbutton | Down |
| P0.03 | Accelerometer, SAO | SDA |
| P0.04 | SAO | GPIO1 |
| P0.05 | SAO | GPIO2 |
| P0.06 | E-Paper | RESET |
| P0.07 | E-Paper | CS |
| P0.08 | WS2812 Neopixels | DATA |
| P0.10 | Pushbutton | Action |
| P0.12 | E-Paper | D/C |
| P0.13 | Extension Slot | D3 Pin |
| P0.15 | Extension Slot | D1 Pin |
| P0.17 | Vibrator | Vibrate |
| P0.20 | Serial Flash | SO/IO1 |
| P0.22 | Serial Flash | SI/IO0 |
| P0.24 | Extension Slot | D4 Pin |
| P0.26 | E-Paper | BUSY |
| P0.28 | Accelerometer, SAO | SCL |
| P0.29 | Pushbutton | Left |
| P0.30 | Battery Voltage | Analog |
| P0.31 | Pushbutton | Top |
| P1.00 | Serial Flash | SCK |
| P1.02 | Serial Flash | CS |
| P1.04 | Serial Flash | WP/IO2 |
| P1.06 | Serial Flash | HOLD/IO3 |
| P1.09 | E-Paper | MISO |
| P1.10 | E-Paper | MOSI |
| P1.11 | Red LED | Cathode |
| P1.13 | Pushbutton | Right |
Similar to 2020, with the following differences:
- VS1003 MP3/WMA Audio Codec
- 3 CHERRY MX Keyboard Switches (in place of the 5 pushbuttons)
- 4 WS2812B NeoPixels (instead of just 2)
- GD25Q16C 16MBit Serial Flash
- Shitty Add-On (SAO) Connector v1.0
- No reset button
- No extension slot
| Pin | Component | Function |
|---|---|---|
| P0.00 | VS1003 MP3 Codec | RESET |
| P0.01 | E-Paper, MP3 Codec | SCLK |
| P0.02 | Keyboard Switch | Left |
| P0.03 | Accelerometer, SAO | SDA |
| P0.06 | E-Paper | RESET |
| P0.07 | E-Paper | CS |
| P0.08 | WS2812 Neopixels | DATA |
| P0.12 | E-Paper | D/C |
| P0.13 | VS1003 MP3 Codec | DREQ |
| P0.17 | Vibrator | Vibrate |
| P0.20 | Serial Flash | SO/IO1 |
| P0.22 | Serial Flash | SI/IO0 |
| P0.24 | VS1003 MP3 Codec | xDCS |
| P0.26 | E-Paper | BUSY |
| P0.28 | Accelerometer, SAO | SCL |
| P0.29 | Keyboard Switch | Middle |
| P0.30 | Battery Voltage | Analog |
| P0.31 | Keyboard Switch | Right |
| P1.00 | Serial Flash | SCK |
| P1.02 | Serial Flash | CS |
| P1.04 | Serial Flash | WP/IO2 |
| P1.06 | Serial Flash | HOLD/IO3 |
| P1.09 | E-Paper, MP3 Codec | MISO |
| P1.10 | E-Paper, MP3 Codec | MOSI |
| P1.11 | Red LED | Cathode |
| P1.13 | VS1003 MP3 Codec | CS |