In this sample project, we are using a volatile dual channel DAC. This means there will be two output analog pins, which keep their values until the DAC losses power (volatile). The software accompanied with this project assumes reference voltage to be 5V.
In this sample project, we are using the BME280 to measure temperature, humidity, and pressure. All three are measured using an extremely small sensor which uses the SPI protocol for communication. The software associated with this project shows the temperature, humidity, and pressure on a bar and in text.
In this sample project, we are using an accelerometer to track movement of the board. The sample code provided shows the simplest use of the accelerometer (getting g experienced by the X, Y, and Z axis). There are many other functions that can be configured and used, which are implemented but not used.