Some pins have the possibility to measure the applied voltage dynamically, and assign a discrete number to the measured value, using an analog to digital signal converter, or ADC. This is very useful to acquire data from a wide range of sensors, capable of conveying the information as output voltage, or simply using a variable resistor.
The configuration of the ADC subsystem may vary significantly across different platforms. ADCs on modern microcontrollers offer a wide range of configuration options. The reference microcontroller equips three separate ADC controllers, sharing 16 input channels, and each one with a resolution of 12 bits. Multiple features are available, such as DMA transfer of the acquired data, and monitoring ...
