The SparkFun OpenScale is a, open source solution for measuring weight and temperature. It has the ability to read multiple types of load cells and offers a simple-to-use serial menu to configure calibration value, sample rate, time stamp and units of precision. Simply attach a four-wire or five-wire load cell of any capacity, plug the OpenScale into a USB port and can see the mass reading on a terminal window at 9,600 bps.The SparkFun OpenScale will enable you to turn a load cell or four load sensors in a Wheatstone bridge configuration into the DIY weigh scale for your application.
The OpenScale is designed for projects and applications where the load is static or where constant readings are needed without user intervention. A load cell with an equipped OpenScale can remain in place for months without any user interaction. On board the SparkFun OpenScale is the ATmega328P microcontroller, for addressing your communications needs and transferring your data to a serial terminal or to a data logger such as the OpenLog, an FT231 with mini USB, for USB to serial connection; the HX711, a 24-bit ADC for weigh scales, and the TMP102 for recording the ambient temperature of your system. The OpenScale communicates at a TTL level of 9,600bps 8-N-1 by default and possesses a baud rate configurable from 1,200bps to 1,000,000bps.
Features of SparkFun OpenScale:
- Operating Voltage: 5V
- Operating Ampage: 80-100mA
- Power Cycling above 500ms
- Selectable 10SPS or 80SPS Output Data Rate
- Local & External Temperature Sensors
- Fixed & Adjustable Gain
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