Adafruit NAU7802 ADC
Best high-precision interface for DIY weight and force sensing projects.
This is the definitive bridge between raw physical weight and digital data, turning finicky load cells into reliable sensor inputs. It sacrifices a bit of raw, low-level control for the massive convenience of plug-and-play connectivity, making precise force measurement accessible without the usual wiring headache.
$18.72
at
eBay
Who it's for
- Engineers building high-precision weight or pressure sensing projects
- Makers needing rapid, solderless prototyping for microcontroller projects
- Developers integrating resistive bridge sensors like load cells
Who should skip it
- Engineers requiring high-speed data acquisition for fast signals
- Beginners intimidated by complex software filtering and calibration routines
- Hobbyists seeking an inexpensive, general-purpose ADC for simple tasks
Performance breakdown
Measurement Precision
High-resolution 24-bit conversion captures subtle weight changes with exceptional accuracy.
Integration Speed
STEMMA QT and Qwiic connectors eliminate soldering for rapid project prototyping.
Software Support
Robust library ecosystem makes data acquisition seamless across Python and Arduino.
Sensor Versatility
Handles diverse Wheatstone bridge configurations with flexible excitation voltage settings.
Form Factor
Compact footprint fits easily into tight enclosures or portable sensor builds.
Wiring Convenience
Integrated terminal blocks simplify secure connections for external load cells.
Key Specs
Product Dimensions
25.3mm x 23.0mm x 4.5mm
Product Weight
2.3g
ADC Resolution
24-Bit
Interface
I2C
Sensor Compatibility
Wheatstone bridge sensors (e.g., strain gauges, load cells)
Configurable Reference Voltage
2.4V to 4.0V
Connector Type
STEMMA QT / Qwiic
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