The HX711 is an ADC amplifier module that converts very small analog signals from load cells to digital by amplifying them with 24-bit precision. Since the load cell alone produces too weak a signal to be read directly from the Arduino's analog pin, the HX711 acts as a forced bridge between the two. It communicates with Arduino and ESP series boards via only 2 pins (DT and SCK). It offers two different sampling rate options, 10Hz and 80Hz. It is used with a load cell in projects that require weight and force measurement such as digital scales, luggage scales and material pressure testing.
