NAU7802 Load Cell Amplifier
24-bit ADC for load cell/strain gauge applications. Converts weight measurements from load cells to digital readings.
Say it to PAL
“Tell me when the weight changes.”
The code PAL writes
p.onSensorChange('qwiic-nau7802', 'weight', (w) => {
p.log('Weight reading: ' + w);
});
await p.waitUntilStopped();When to pick it
Load cell amplifier for weighing things. Requires a separate load cell AND calibration with known weights — does not work out of the box.
Good to know
- WILL NOT WORK without calibration. You must connect a load cell, tare (zero), then calibrate with a known weight.
- Load cell is a separate component — make sure you have one or needs to buy one.
- Temperature changes drift the reading. For precision applications, re-tare periodically.
About it
A high-resolution analog-to-digital converter designed for weigh scale applications. When connected to a load cell, it provides precise weight measurements. Supports sample rates from 10 to 320 SPS. Applications include kitchen scales, inventory monitoring, beehive weight tracking, and industrial weighing. Requires calibration with known weights.
Also bring
a load cell · the cell is the thing that bends under a weight; this only reads the bend
Facts
Tested
Its driver works. We have not signed it off on a real board yet.
Current
1 mA
The catalog lists a typical draw of 1 mA for the NAU7802, copied from the maker’s description and not measured by Palpable.
Board size
25.4 × 22.86 mm
The NAU7802 board measures 25.4 × 22.86 mm and stands 10.1 mm tall with its parts. It has 4 mounting holes. These dimensions are from the maker’s mechanical drawing.
Free to reuse
Every fact here is open data under CC BY 4.0. Copy it into your own docs or code, and credit Palpable. Download it
This record was last changed on October 1, 2026.