The Sparkfun OpenScale is an easy-to-use, open source solution for weight and temperature measurement. It has the ability to read multiple types of load cells and offers an easy-to-use serial menu for configuring calibration value, sampling rate, time stamp and precision units.
Simply connect a four-wire or five-wire load cell of any capacity, connect OpenScale to a USB port, open a terminal window at 9.600bps, and you'll see mass measurements immediately. With Sparkfun OpenScale, you can convert a load cell or four load sensors into DIY scales in a Wheatstone bridge configuration for your application.
The OpenScale was developed for projects and applications where the load was static (such as the hive before the SparkFun head office) or where constant measurements are required without user intervention (e.g. in a conveyor belt system). A load cell with an equipped OpenScale can remain in place for months without user intervention!
On board the Sparkfun OpenScale is the ATmega328P microcontroller to meet your communication needs and send your data to a serial terminal or to a data logger such as the openlog, a FT231 with mini USB, for the USB serial port, the HX711, a 24-bit ADC for scales and the TMP102, For recording the ambient temperature of your system. The OpenScale communicates with a TTL level of 9.600bps 8-N-1 by default and has a baud rate configurable from 1.200bps to 1.000.000.000bps.
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