Adafruit INA238 DC Current Voltage Power Monitor - STEMMA QT
SKU: TH1993
Sold Out₹1,273.22
₹1,079.00 (Ex. of GST)
SKU: TH2346
Adafruit NAU7802 24-Bit ADC - STEMMA QT / Qwiic is a high-resolution differential ADC breakout designed for reading strain gauges, load cells, and other 4-wire sensors wired in a Wheatstone bridge configuration. It combines the NAU7802 with onboard gain and calibration support, making it well suited for precise force, weight, and strain measurement projects.
Adafruit NAU7802 24-Bit ADC - STEMMA QT / Qwiic is a high-resolution differential ADC breakout designed for reading strain gauges, load cells, and other 4-wire sensors wired in a Wheatstone bridge configuration. It combines the NAU7802 with onboard gain and calibration support, making it well suited for precise force, weight, and strain measurement projects.
The board provides convenient terminal connections for bridge sensors, along with an I2C interface for fast integration with microcontrollers and single-board computers. STEMMA QT / Qwiic compatibility makes solderless prototyping easy, while the fixed-address I2C design keeps setup straightforward.
As the connected sensor flexes or experiences load, tiny resistance changes in the bridge are converted into very small differential voltages. The NAU7802 amplifies and digitises these signals so your Arduino, CircuitPython, or Python project can turn them into meaningful measurement data.
Technical details for the Adafruit NAU7802 breakout.
| Brand | Adafruit |
|---|---|
| Chipset | NAU7802 |
| ADC Resolution | 24-bit |
| Interface | I2C |
| I2C Address | Fixed at 0x2A |
| Sensor Support | 4-wire Wheatstone bridge sensors, strain gauges, load cells |
| Bridge Excitation | Generated reference/output configurable from 2.4V to 4.0V |
| Connectors | STEMMA QT / Qwiic, terminal block sensor connections |
| Software Support | Adafruit Arduino library, CedarGrove CircuitPython/Python library |
Main terminal and interface connections for bridge sensor hookup.
| Pin | Name | Function |
|---|---|---|
| 1 | E- | Bridge ground / negative excitation, often black wire |
| 2 | E+ | Generated bridge excitation voltage from the NAU7802, often red wire |
| 3 | A- | Differential input from bridge output, often white wire |
| 4 | A+ | Differential input from bridge output, often green wire |
| 5 | B+ / B- | Secondary bridge measurement input for a second sensor channel |
| 6 | SDA / SCL | I2C data and clock via header or STEMMA QT / Qwiic |
The I2C address is fixed at 0x2A. If you need to use multiple NAU7802 boards on the same bus, add an I2C multiplexer.
This breakout is intended for precision bridge-sensor measurement and is a practical choice for digital scales, force sensing, structural strain experiments, and maker instrumentation projects.
Average rating
Based on 0 reviews
No reviews match this filter yet.
SKU: TH1993
Sold OutSKU: TH2020
In StockSKU: TH2022
In StockSKU: TH2025
In Stock