HX711 Load Cell Amplifier

24-bit ADC front-end for strain-gauge load cells and weigh scales. DT/DOUT and SCK are MCU-facing pins; E+/E-/A+/A- connect to the load cell bridge.

VCC
Logic and analog supply. Many breakout boards work from 2.6V-5.5V; use 3.3V logic with ESP32/Pico.
Type · powerVoltage · 3.3
GND
Common ground
Type · ground
DT
Data output from HX711 to MCU input; also called DOUT.
Type · digital
SCK
Serial clock input from MCU.
Type · digital
E+
Bridge excitation positive output to load cell.
Type · powerVoltage · 3.3
E-
Bridge excitation negative output to load cell.

Start wiring

I2S · SPI · Analog · 3.3

Verify supply voltage and logic levels before powering up.

Module pins: VCC, E+, GND, E-, SCK, A+, A-. Schematik maps them to your board in the app.

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