This may be a very basic question. I am planning to use an analog sensor that requires 4-20V input power, but only outputs 0-3V analog signal.
My plan right now is to just use one of the digital pins as power, using a charge pump to boost the voltage from that pin from 3V to 5V. I plan to connect the common ground of the sensor to the common ground of the electron. Will this create any issues and potentially fry the electron or is it tolerant to a 5V ground?