CodeCell is a tiny, Arduino-compatible module with an ESP32-C3, sensors (light, proximity, optional motion), and USB-C charging. Perfect for robotics, wearables, and IoT projects.
comp_gas = log(R_gas ohm » ) + 0.04 log(Ohm)/%rh * hum %rh » .
log(R_gas) + 0.04 * hum