This repository contains hardware for the Fruitfly.
The Fruitfly is intended to be a small but powerful LoRa capable embedded module. The design is currently implemented as an M.2 Key B for simple usage and extendability.
All files are intended for KiCad 6.
Micro Controller Unit (MCU):
- The Fruitfly is build around the STM32H723 MCU with an Arm® Cortex®-M7 core operating at 550MHz
Memory and Storage:
- 32MB of on-board SDRAM
- 32MB of NOR FLASH
- MicroSD card interface
Communication:
- Semtec SX1276 LoRa Transciever
This is not an exhaustive list but is marked in order of priority:
- Complete first draft of schematic
- Add bus aliases where missing
- Change power supply line selection circuitry
- Add TVS diodes to microSD card
- Potentially include SD card translator IC
- Final schematic review
- Complete PCB layout and design