Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Resolution	24-bit
Interface Type	Two-wire Serial (CLK, DT)
Operating Voltage	2.6V to 5.5V DC
Selectable Gain	32, 64, 128
Sampling Rate	10Hz or 80Hz selectable
Input Channels	2 Differential Input Pairs
On-chip Features	Active Low Noise PGA, On-chip Oscillator
Package Dimensions	17mm x 19mm x 7mm
Compatibility	Arduino, Raspberry Pi, STM32, ESP8266
Application	Electronic Scales, Industrial Control, Haptic Feedback

6 reviews

Anonymous

Mar 20, 2026

Rating: 4/5

Good precision, requires calibration

As expected with any load cell amplifier, you need to spend time calibrating it for your specific load cell. Once calibrated, the precision is amazing. Documentation could be more detailed.

Anonymous

Mar 16, 2026

Rating: 5/5

Industry standard for a reason

The HX711 is a classic for a reason. This breakout board makes it easy to integrate. The selectable gain options are very useful for different weight ranges.

Anonymous

Mar 16, 2026

Rating: 5/5

Perfect for DIY Scale Projects

This HX711 module works flawlessly with my Arduino Uno. The 24-bit resolution provides incredibly stable readings for my kitchen scale project. Setup was straightforward using the standard library.

Anonymous

Mar 12, 2026

Rating: 4/5

Great value, minor wiring confusion

The sensor itself is excellent and very sensitive. I deducted one star because the pin labeling on the board is slightly small, making it hard to read without a magnifier. Otherwise, performance is top-notch.

Anonymous

Mar 10, 2026

Rating: 5/5

Compact and Powerful

I needed something small for a wearable pressure sensor prototype. This module fits perfectly and the data output is consistent. Highly recommended for embedded systems.

Anonymous

Mar 09, 2026

Rating: 5/5

Reliable for student projects

We bought ten of these for our robotics club. Every single unit worked out of the box. The noise cancellation is impressive even in a busy workshop environment.

5 FAQ

Q: How many wires do I need to connect to the microcontroller?

A: You typically need four connections: VCC, GND, Data (DT), and Clock (CLK). Some setups may also use the RATE pin if you need to switch sampling speeds dynamically.

Q: Does this come with a load cell included?

A: No, this listing is for the HX711 amplifier module only. You will need to purchase a compatible strain gauge or load cell separately.

Q: Is there a library available for Python/Raspberry Pi?

A: Yes, there are several open-source Python libraries available on GitHub specifically designed to interface the HX711 with Raspberry Pi GPIO pins.

Q: What is the maximum update rate for this sensor?

A: The module offers two selectable output rates: 10 samples per second (SPS) for higher resolution or 80 SPS for faster response times, controlled by the RATE pin.

Q: Can this module work with a 3.3V microcontroller like the ESP32?

A: Yes, the HX711 operates between 2.6V and 5.5V, so it is fully compatible with 3.3V logic levels found on ESP32 and similar boards.

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