SparkFun OpenScale SEN-13261 Load Cell Amplifier & Data Logger Module
The SparkFun OpenScale is an open-source load cell amplifier and data logger module featuring an onboard HX711 24-bit ADC and ATmega328P microcontroller. It provides a plug-and-play solution for converting 4-wire or 5-wire load cells into a calibrated digital scale, outputting data via USB serial at configurable baud rates for integration with Arduino, Raspberry Pi, or PC-based data logging systems.
Features
- Integrated HX711 24-bit precision analog-to-digital converter for high-resolution weight measurement.
- Onboard ATmega328P microcontroller handles data processing, serial communication, and user-configurable settings via terminal menu.
- Supports 4-wire and 5-wire load cells of any capacity with simple plug-and-play connectivity.
- Configurable serial output baud rate from 1,200 bps to 1,000,000 bps for flexible system integration.
- Includes TMP102 digital temperature sensor for ambient temperature compensation and monitoring.
Out of stock
The SparkFun OpenScale module simplifies the process of integrating load cells into measurement systems by combining signal conditioning, analog-to-digital conversion, and serial communication on a single board. Its core is the HX711, a low-noise 24-bit ADC specifically designed for weigh scales and force measurement, which interfaces directly with the strain gauge bridge of a load cell. The ATmega328P microcontroller manages the device configuration, allowing users to set calibration values, sample rates, units, and data logging parameters via a simple serial menu.
Designed for static or continuous monitoring applications, the OpenScale provides stable, long-term measurement with minimal user intervention. The onboard TMP102 temperature sensor enables environmental compensation, improving measurement accuracy over varying ambient conditions. Communication is handled through an FT231 USB-to-serial converter, allowing direct connection to a computer for real-time data viewing or logging to devices like the OpenLog.
Additional Information
| Weight | 0.012 kg |
|---|---|
| Dimensions | 5.5 × 4.8 × 1.1 cm |
