M1 Firmware

Firmware for the M1 NFC/RFID multi-protocol device, built on STM32H5.

Overview

The M1 firmware provides support for:

• NFC (13.56 MHz)
• LF RFID (125 kHz)
• Sub-GHz (315–915 MHz)
• Infrared (IR transmit/receive)
• Bluetooth (BLE scan, advertise, GATT; via ESP32 co-processor)
• WiFi (AP scan, station/AP modes; via ESP32 co-processor)
• Battery monitoring
• Display (ST7586s ERC240160)
• USB (CDC, MSC)

Hardware

• MCU: STM32H573VIT6 (32-bit, 2MB Flash, 100LQFP)
• Hardware revision: 2.x

See HARDWARE.md for more details.

Documentation

• Build Tool (mbt) – Build with STM32CubeIDE or VS Code
• Architecture – Project structure
• Development – Development guidelines

Building

See documentation/mbt.md for full build instructions (STM32CubeIDE and VS Code setup, extensions, and optional post-build CRC).

Prerequisites

• STM32CubeIDE 1.17+ (recommended), or
• VS Code with ARM GCC 14.2, CMake Tools, Cortex-Debug, and Ninja, or
• Linux with ARM GCC toolchain and Ninja

Build steps

Linux:

make

Output: ./artifacts/ (MonstaTek_M1_v0800.elf, .bin, .hex)

STM32CubeIDE:
Open the project and build in the IDE.

VS Code:

1. Configure the project (e.g. gcc-14_2_build-release or gcc-14_2_build-debug)
2. Build via the Build icon

Output: ./out/build/gcc-14_2_build-release (VS Code) or ./Release (STM32CubeIDE)

Contributing

Contributions are welcome. See CONTRIBUTING.md and the Code of Conduct.

License

See LICENSE for details.