Vanilla HTTP server
Interface: Graph of voltage during the day
When it turns on and off the main load
Warning messages: not charging to meet load requirements
Use LEDs for signaling status on the device
Web interface for scheduling: slider with overlay with of yesterday's sunlight and usage data
Design of the I2C slave protoboard. This slave measures analog voltage 0-5V from an input voltage of 7-17V. The device is powered from the monitored source. A Tessel 2 is connected as the I2C master device for data logging.