The CEE (control · experiment · explore) is an analog multitool. By sourcing and measuring voltage and current, the CEE opens up a world that has previously been restricted by monolithic, bulky, and hard-to-use tools. Learners can explore a wide range of concepts including everything from AC/DC electricity and resistance to work / energy, torque / speed, heat flow, and electrochemistry. As tinkerers, we've used our proof-of-concept boards as a multimeter to sort components in our junk bins, a programmable interface device to test new sensors, a power supply to fuel our breadboards, a web-based datalogger, and every possible combination therein.
- tightly integrated, well documented, 100% open-source software for data analysis and real-time measurement
- flexible drivers offer integration with existing sensors, actuators, and software
- web-based user interface makes collaboration seamless and painless across Mac, Windows, and Linux, in the garage, in the lab, and at school
- USB powered and controlled, requiring only one cable
- sub-millivolt and sub-milliamp precision and accuracy
- two watt power output, allowing for direct use with a wide range of motors, lights, and sensors
- two channels, capable of sourcing and measuring up to 5V and 200mA each
- upgradeable to 2A current with external power supply - some soldering required
- 100k samples per second of voltage & current set/measurement at 12bit resolution
One of our classes at Olin College was built around a USB “Source Measure Unit.” A staunch departure from the input-only devices we encountered in high school labs, the SMU is a USB device that allows a user to write scripts that set voltage or current, and measure both. Even students who were used to not "getting it" enjoyed the ability to actively explore electronics and control theory concepts. Our frustration with the closed tools surrounding this device lead us to build an open alternative to allow the idea to realize its full potential. This is our attempt to bring a powerful tool for Control, Experimentation, and Exploration to hobbyists and learners.
The money from this Kickstarter will go straight to alpha, beta, and production runs. At least six thousand dollars is required for the first assembly run through the Seeed Studio Propagate service - any additional money will allow us to scale. Our schematics and board layouts will be released under a CC-BY-SA license, and the firmware and software will be released under a BSD license.
We wish to publicly thank Dr. Brad Minch and Dr. Gill Pratt for the introducing us to the SMU, Do Kashiteru for their song "You and Your Bright Ideas" which we used in our video, and Bryan Mehall who produced our 3d renders.
- (31 days)