| layout |
board_id |
title |
name |
manufacturer |
board_url |
board_image |
date_added |
downloads_display |
family |
bootloader_id |
features |
| download |
pillbug |
PillBug Download |
PillBug |
MechWild |
|
pillbug.jpg |
2022-11-10 |
true |
nrf52840 |
pillbug |
| Battery Charging |
| Bluetooth/BTLE |
| Breadboard-Friendly |
| USB-C |
|
The PillBug is a BLE enabled development board powered by the nRF52840 that is designed to be a drop in replacement for the stm32f401/stm32f411 blackpill development board. This board was designed for compatibility with blackpill driven keyboards and will work as a simple replacement in most cases. The PillBug features 3.7V Li-Ion battery charger, a software controlled hardware cutoff for powering peripherals, a controllable status LED, and compatibility with blackpill's pinouts for I2C/SPI/UART.
Technical details
- BLE (Bluetooth Low Energy) capable
- nRF52840 powered with 1MB Flash memory and 256KB RAM
- Preloaded Adafruit nRF52 Bootloader utlizing UF2 and DFU flashing options
- Software controlled blue status LED that can be configured by application
- Hardware controlled charging red status LED
- 3.3V GPIO logic and power provided through VCC pins
- Software controlled MOSFET to disable providing power through the power pins to external peripherals
- 30 Total GPIO pins in an easy to use and breadboard friendly layout
- RTC (real-time clock) capabilities provided through use of 32.768kHz oscillator (necessary for BlE)
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