Generic 5kg Load Cell Kit with HX711AD Module, Shell & 4P DuPont Wire

Connect the load cell's 4-wire cable to the HX711 module as follows: Red wire to E+ (excitation positive), Black wire to E- (excitation negative), Green wire to A+ (signal positive), and White wire to A- (signal negative). The HX711 module then connects to your microcontroller via its VCC, GND, DT (Data), and SCK (Clock) pins.

The HX711 module is typically powered by 5V DC. The load cell itself is a passive strain gauge; its excitation voltage is provided by the HX711 module and should not exceed 5V. Applying a higher voltage to the HX711's VCC pin or directly to the load cell may damage the ADC chip or degrade sensor accuracy.

Calibration requires known calibration weights. Use a library like 'HX711_ADC' for Arduino. First, record the raw ADC reading with no load (tare). Then, place a known weight (e.g., 1kg) on the sensor and record the new reading. The library uses these two points to calculate a calibration factor, which is then used to convert future raw readings into accurate weight values.

Yes, but it requires additional circuitry. The load cell outputs a differential millivolt-level signal. You would need an instrumentation amplifier to boost the signal and a separate high-resolution ADC. The included HX711 module is specifically designed for strain gauge bridges, integrating both amplification and 24-bit conversion, making it the most straightforward and optimized solution.