Compare ADS1256, ADS1232, ADS1220, ADS1115, and ADS1292R modules before choosing a 24-bit ADC for Arduino, ESP32, STM32, or Raspberry Pi. This guide explains resolution, ENOB, sample rate, SPI and I²C, channel multiplexing, ADS1232 pinout, ADS1256 wiring, load-cell measurement, noise reduction, calibration, and common design mistakes. Learn which converter fits precision sensors, multi-channel data acquisition, electronic scales, ECG front ends, and high-speed measurement projects.