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This code sits on the eVOLVER raspberry pi and handles communications between the DPU and the SAMD21 microcontrollers that monitor and actuate experimental parameters. Calibrations, experiment commands, and data transmission are all handled by this code using python socket-io and pyserial.

eVOLVER units should come with this software pre-installed. If you need to, you can install all dependencies by running the following command:

python3.6 setup.py install

NOTE: You must use python3.6 at this point in time - some of the dependencies currently do not work on 3.7.

We use supervisor to run and manage the logs for the eVOLVER server. eVOLVERs should come pre-configured. We also provide a utility monitoring and restart script, evolvercron and server_monitor.sh. To use, add the crontab job line in evolvercron into your cron installation.

If you desire to update an older evolvers calibrations to the current release formatting, use the script located at utls/calibration_transformation.py. To run:

python3.6 utils/calibration_transformation.py -d evolver/calibrations -f evolver/calibrations.json