Встроенный АЦП AVR микроконтроллера

This lecture covers the integrated analog-to-digital converter (ADC) of the AVR microcontroller. It examines the ADC control registers and provides an example of reading an analog signal from a potentiometer, whose value is processed by the ADC. Digital technology, including the microcontroller, does not work directly with analog signals. The analog signal must be converted to digital form, which is what the ADC does. The ADC channel selection register (as well as the reference voltage and the method for representing the ADC result) is ADMUX; the ADC setup (and enable) register is ADCSRA; and the registers that store the 10-bit ADC conversion result are ADCH and ADCL. Timecodes: 00:00 Introduction 00:06 Defining the ADC 01:39 ADMUX Register 03:40 Aligning the ADC Result (ADLAR Bit) 06:48 Selecting the ADC Conversion Channel 07:54 ADCSRA Register 10:07 ADC Sampling Rate 10:38 Modeling a Potentiometer in Proteus 18:17 Programming a Potentiometer in Real Life 20:46 Demonstration