HX711AD load cell - weight sensor up to 1 kg, 5 V
Description
Product overview
- Digital load cell with integrated HX711AD pressure sensor for loads up to 1 kg
- Pressure-to-digital conversion with up to 80 measurements per second
- Two digital outputs for signal selection and gain switching
- Output signal via SPI or a similar serial interface
- Power supply of 4.8–5.5 V required
- Software calibration without external components
Product description
This load cell with an integrated pressure sensor converts loads of up to 1 kg into digital measurements. The HX711AD chip determines the measured pressure and outputs the signal directly in digital form, eliminating the need for analog-to-digital converters.
When a load is applied, the sensor element generates a small change in voltage. The chip amplifies this signal and records it with high resolution. Output is provided at up to 80 measurements per second, which is sufficient for weighing applications. To track rapid weight changes, a lower measurement rate is required to minimize delays.
Possible applications include kitchen scales, postal scales up to approximately 1 kg, dosing systems in small-scale installations, or animal scales for rodents and birds. The load cell is also frequently used in IoT project prototypes, for example to automatically record feeding quantities.
The sensor outputs its values via a serial interface, so a microcontroller board with a corresponding interface is required. The supply voltage must be between 4.8 and 5.5 V. Calibration is performed by software, eliminating the need for mechanical adjustment. However, load cells of this type require a stable, vibration-free surface for accurate measurements.
Safety information
This module is intended exclusively for building prototypes and for testing and development purposes. It is not intended for installation in household electrical circuits or in scales used for official verification. The power supply must be provided outside the module. If you are unsure about the voltage compatibility of the connected microcontroller board, consult a qualified electrician before commissioning.
Scope of delivery
- 1x HX711AD weighing pressure sensor with load cell - 1kg - weight measurement