Shared Projects by falkenad

V1a breaks out PA15 and changes the 32kHz crystal to a larger and cheaper ABS6.

An STM32L4 microcontroller in a Teensy form factor. This board was designed as a 2-layer PCB with all components on the top side as a more cost-effective, very low power Cortex M4 alternative. Design inspired by Kris Winer’s Dragonfly and Paul Stoffregen’s Teensy.

Includes both low-speed and high-speed oscillators, a supercapacitor RTC backup, an extremely low Iq LDO regulator, and flash memory. The supercapacitor’s VBAT pin is broken out such that an external coin cell or supercapacitor may be used.

A SAMD21G18-based breakout board for wireless sensor node and automation purposes. This board is essentially a mash up of Felix Rusu’s excellent Moteino board and S. Swift’s equally excellent Neutrino. This board is intended to be used as a test bed for LoRA RFM95/96/97/98 radio modules, and testing their potential with Adafruit’s new MicroPython port for the SAMD21G18.

An STM32L4 microcontroller in a Teensy form factor. This board was designed as a 2-layer PCB with all components on the top side as a more cost-effective, very low power Cortex M4 alternative. Design inspired by Kris Winer’s Dragonfly and Paul Stoffregen’s Teensy.

Includes both low-speed and high-speed oscillators, a supercapacitor RTC backup, an extremely low Iq LDO regulator, and flash memory. The supercapacitor’s VBAT pin is broken out such that an external coin cell or supercapacitor may be used.

QDSP-6064 retro bubble display driver based on the AS1115.

A breakout board for the new ESP32, specifically in the form of the ESP3212 module. This breakout board contains an FT231X USB to UART IC, an auto-reset circuit, space for a JST battery connector underneath, and a 600mA 3.3V linear regulator.