IMAGS Hardware Overview

Arduino firmware, circuit and sensor assembly, CAD files, and technical documentation for IMAGS hardware.

IMAGS works by measuring and recording the conductivity of skin in real time. This is done by using a pair of sensors that send a small, non-harmful electrical current through the skin. We then measure how strong that current is at one sensor versus the other sensor, send it to the circuit, and process it to get the current GSR value. The circuit then connects to the IMAGS web app via Bluetooth, where we can watch and record the live GSR values.