This repository contains the schematics and hardware design files. There are several related repositories:

• cee-firmware, the source code for the firmware running on the Atmel XMEGA32A4U
• nonolith-connect, the USB to websocket bridge and data streaming layer
• pixelpulse, the web-based user interface

About CEE

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.

Features

• 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
• 40k+ samples per second of voltage & current set/measurement at 12bit resolution
• 32MHz RISC processor - ATXMEGA32A4U

Development is ongoing.

All schematics and board layouts for this project are released under a Creative Commons BY-SA license.