A brief recommendation of a textbook on programming the Raspberry Pi in ARM assembly language.
Reading temperature and humidity from a Si7021 sensor over I2C with a Raspberry Pi, including register access and measurement commands.
Using C and the bcm2835 library to communicate with a TSL2561 light sensor over the Raspberry Pi’s I2C bus.
Reading analog signals on a Raspberry Pi with an MCP3008 ADC over SPI, using C and the bcm2835 library.