SparkFun Load Cell Amplifier – HX711 Breakout Board
The SparkFun HX711 Load Cell Amplifier breakout board provides a precision interface for reading strain gauge load cells, enabling accurate weight and force measurement with microcontrollers like Arduino, Raspberry Pi, and ESP32. It features a two-wire serial interface and on-chip signal conditioning for industrial scales and process control applications.
Features
- HX711 IC-based breakout board for interfacing with 4-wire or 5-wire load cells.
- Dual differential input channels with programmable gain (32, 64, 128).
- Low-noise PGA and on-chip voltage regulator for stable analog supply.
- Selectable output data rate (10 SPS or 80 SPS) with 50/60 Hz supply noise rejection.
- Simple two-wire (Clock & Data) serial interface compatible with any microcontroller GPIO.
Out of stock
The SparkFun SEN-13879 is a dedicated breakout module for the HX711, a 24-bit analog-to-digital converter (ADC) designed specifically for weigh scale and industrial force sensing applications. It conditions the small millivolt-level signal from a strain gauge load cell, amplifying and digitizing it for direct reading by a host controller. The board includes separated analog and digital power supply rails, enhanced with a 3.3µH inductor and a 0.1µF filter capacitor on the digital side for improved noise immunity.
Communication is handled via a straightforward two-wire serial protocol, requiring only a clock pin and a data pin from the microcontroller. Extensive library support exists for platforms including Arduino and Raspberry Pi, simplifying integration. The module supports standard load cell color coding (Red: Excitation+, Black: Excitation-, White: Signal-, Green: Signal+, Yellow: Shield) and is ideal for creating precision scales, process monitoring systems, and presence detection setups.
Additional Information
| Weight | 0.01 kg |
|---|---|
| Dimensions | 3 × 2.3 cm |
