Description
Reviews
| 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 |
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.
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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