功能

• Description
• The SparkFun OpenScale is a simple-to- , open source solution for measuring weight and temperature. It has the ability to read multiple types of load cells and offers a simple-to- 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, open a terminal window at 9,600bps, and you'll immediately see mass readings. 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 was designed for projects and applications where the load was static(like the beehive in front of SparkFun HQ)or where constant readings are needed without r intervention(for example, on a conveyor belt system). A load cell with an equipped OpenScale can remain in place for months without needing r 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.
• Get Started with the OpenScale Guide
• Features
• 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