Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Chip Model	HX711
Resolution	24-Bit
Input Channels	2 (Channel A and Channel B)
Operating Voltage	2.6V to 5.5V DC
Refresh Rate	10Hz or 80Hz selectable
Interface Type	Two-wire Serial Interface
Dimensions	19mm x 16mm x 8mm
Weight	3.5 grams
Compatibility	Arduino, Raspberry Pi, STM32
Package Content	1x HX711 Module, 1x Pin Header

6 reviews

Anonymous

Mar 28, 2026

Rating: 5/5

Easy to integrate

Documentation online is plentiful, making integration simple. The refresh rate switching via pin configuration is very convenient for balancing speed and precision.

Anonymous

Mar 27, 2026

Rating: 5/5

Reliable precision sensor interface

We used ten of these for a student robotics competition. All units performed consistently. The dual-channel support is a nice bonus for differential measurements.

Anonymous

Mar 27, 2026

Rating: 5/5

Perfect for DIY Scales

This module works flawlessly with my Arduino project. The 24-bit resolution provides very stable readings for my kitchen scale build. Setup was straightforward using existing libraries.

Anonymous

Mar 15, 2026

Rating: 5/5

Great for learning embedded systems

Bought this for a university thesis project involving weight monitoring. It handled the load cell connection perfectly and the data output is clean.

Anonymous

Mar 13, 2026

Rating: 4/5

Good value, small footprint

Compact size fits well in tight enclosures. Signal noise is low when properly grounded. Only giving 4 stars because the included pins were slightly bent, but easy to fix.

Anonymous

Mar 08, 2026

Rating: 4/5

Solid performance

Does exactly what it says on the tin. Readings are repeatable and accurate. Make sure you have a stable power supply to get the best noise performance.

5 FAQ

Q: Does this come with a load cell included?

A: No, this package contains only the HX711 amplifier module and pin headers. You will need to purchase a compatible load cell separately.

Q: Is there a library available for Python on 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: Can this module work with a 3.3V microcontroller?

A: Yes, the HX711 operates within a voltage range of 2.6V to 5.5V, so it is fully compatible with 3.3V systems like many ESP32 or STM32 boards.

Q: How do I switch between 10Hz and 80Hz refresh rates?

A: The refresh rate is selected by the state of the RATE pin. Connect the RATE pin to GND for 10Hz or leave it floating (or connect to VCC) for 80Hz.

Q: What is the difference between Channel A and Channel B?

A: Channel A has a programmable gain of 32, 64, or 128, while Channel B has a fixed gain of 32. You can select the channel and gain by pulling the PD_SCK pin low after resetting.

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