| Price | $2 |
|---|---|
| Category | Sensors |
| Availability | In stock |
| Delivery | Shipped across Lebanon, or collect from the lab |
The standard way to get a load cell talking to a microcontroller. The HX711 amplifies the few millivolts a load cell produces and digitises them at 24 bits - far finer than the 10-bit ADC inside an Arduino - then hands the result over just two pins, a clock and a data line. Channel A takes the load cell at a gain of 128 or 64; channel B is fixed at 32 for a second sensor. It runs from 2.6 to 5.5V on under 1.5 mA, and the Arduino libraries for it are excellent.
Key features
- 24-bit ADC designed specifically for load cells
- Two-wire interface (DT and SCK) on any two GPIOs
- Channel A gain 128 or 64, channel B fixed at 32
- 10 or 80 samples per second, set by the RATE pin
- 2.6-5.5V, under 1.5 mA
- Load cell not included - six pads: E+ E- A- A+ B- B+
Details
Specifications
| Chipset | HX711 |
|---|---|
| Resolution | 24-bit |
| Channels | 2 differential (A and B) |
| Gain | 128 or 64 on channel A, 32 on channel B |
| Sample rate | 10 SPS or 80 SPS |
| Operating voltage | 2.6-5.5V DC |
| Supply current | Under 1.5 mA |
| Interface | 2-wire (DT / SCK) |
| Load cell connections | E+, E-, A-, A+, B-, B+ |
