# Add Linux ARM64 (aarch64) Support

[intervall-ludger]

This PR adds support for Linux ARM64 (aarch64) platforms, specifically tested on Raspberry Pi 4/5.

Changes

Pre-built Libraries

Added pre-built static libraries for aarch64:

• coines-api/pc/coines_pc/platform/Linux/ble/simpleble-0.6.0/libs/aarch64/libsimpleble.a
• coines-api/pc/coines_pc/platform/Linux/ble/simpleble-0.6.0/libs/aarch64/libsimpleble-c.a
• coines-api/pc/coines_pc/platform/Linux/serial/libusbp-1.0/libs/aarch64/libusbp-1.a

Added pre-built shared library:

• coines-api/pc/python/coinespy/libcoines_arm_64.so

Makefile Updates

Updated coines-api/pc/python/Makefile:

• Added aarch64 architecture detection (alongside existing arm64 for macOS)
• Skip -m64 flag for aarch64 (not supported on ARM)
• Output library named libcoines_arm_64.so for Linux ARM64

Python Library Loading

Updated coines-api/pc/python/coinespy/coines.py:

• Added detection for aarch64 and arm64 machine types on Linux
• Loads libcoines_arm_64.so for ARM64 Linux platforms

Documentation

Updated README.md:

• Added ARM64/aarch64 to supported Linux platforms
• Added note about libbluetooth-dev dependency for BLE support on ARM64

Testing

Tested on:

• Raspberry Pi 5, Debian Bookworm (aarch64)
• BME690 sensor via USB (APP3.0 Shuttleboard)

$ python3 -c "import coinespy as cpy; b = cpy.CoinesBoard(); print(b.open_comm_interface(cpy.CommInterface.USB))"
ErrorCodes.COINES_SUCCESS

Dependencies

On ARM64 Linux, the following packages are required:

sudo apt install libusb-1.0-0-dev libudev-dev libdbus-1-dev libbluetooth-dev

Build Instructions

On an ARM64 Linux system:

cd coines-api/pc/python
make

This produces coinespy/libcoines_arm_64.so.