Реалізація цифрових фільтрів на ESP32 у середовищі ARDUINO IDE

Abstract

The work analyzes tasks and electronic devices that require the implemen- tation of digital filtering. A review of the characteristics of popular ESP32 mod- ules has been completed. The coefficients of three low-pass filters were synthe- sized using a specialized utility in Matlab. Using the developed digital filter program, the filtering time, access to the analog-to-digital and digital-to-analog converter in the Arduino IDE were measured, and the microprocessor core load was calculated. Disadvantages of the Arduino IDE have been identified when working with the internal peripherals of the ESP32 module.