HX711 Weighing Pressure Sensor Module Load Cell Amp

The HX711 Weighing Pressure Sensor Module is a load cell amplifier board built around the HX711, a 24-bit analog-to-digital converter made for weigh scales. It amplifies the very small signal from a strain-gauge load cell and sends the reading to an Arduino, ESP32 or Raspberry Pi over a simple two-wire interface, so you can build accurate digital scales and force-measuring projects.

HX711 Weighing Pressure Sensor Module Specifications

• Chip: HX711, 24-bit ADC with built-in amplifier
• Input channels: A (gain 128 or 64) and B (gain 32)
• Supply voltage: 2.6 V to 5.5 V
• Output rate: 10 or 80 samples per second, set by the RATE pin (most boards use 10)
• Interface: 2-wire serial, DT (data) and SCK (clock), not I2C
• Load cell side: E+, E−, A−, A+ (and B−, B+ for channel B)
• Controller side: GND, DT, SCK, VCC

HX711 Weighing Pressure Sensor Module Applications

• Digital kitchen, parcel and luggage scales
• Weighing beehives, plant pots or water tanks with a data logger
• Force and tension measurement
• IoT scales that send the weight to a phone or dashboard
• STEM and university measurement labs

What's in the Box

• 1 × HX711 load cell amplifier module (load cell not included)

Tip: A typical 4-wire load cell connects red to E+, black to E−, white to A− and green to A+, but colours vary, so check the cell's datasheet. After wiring, run a calibration sketch with a known weight to find the calibration factor, and mount the load cell so the force passes only through it.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.