multipass is a C++ Library Operating System for a few embedded architectures. As such, it does not provide multi-threading support or similar conveniences. Its objective is similar to the Arduino environment: provide a simple framework for embedded application development, and get out of the way as much as possible. It favors simplicity over performance and abstraction. Re-using components outside of multipass should be fairly simple.

Supported Architectures

ATMega168P, ATMega328P (Arduino Nano)

• I²C, SPI, UART
• ADC
• NeoPixel / WS2812B (Adafruit driver)

MSP430FR5969, MSP430FR5994 (MSP430 Launchpad)

• I²C, SPI, 2×UART (additional I²C/SPI/UART interfaces are not supported)
• ADC

POSIX (e.g. running as linux thread on a raspberry pi)

• I²C via /dev/i2c

Included drivers

• AM2320 I²C Temperature+Humidity Sensor
• BME280 I²C Temperature+Humidity+Pressure Sensor (Bosch SensorTec driver)
• BME680 I²C Temperature+Humidity+Pressure+Air Quality Sensor (Bosch SensorTec driver)
• CCS811 I²C Air Quality Sensor
• DS2482 I²C 1-Wire Bus Controller
• HDC1080 I²C Temperature+Humidity Sensor
• LM75 I²C Temperature Sensor
• MAX44006 I²C RGB + IR Light Sensor
• MAX44009 I²C Light Sensor
• MPU9250 I²C Accelerometer+Gyroscope+Magnetometer Sensor
• SCD40/SCD41 I²C CO₂ Sensor
• SSD1306 I²C OLED display controller
• EML6075 I²C UVA/UVB Light Sensor