Use a Transistor for a Liquid-Triggered Switch
Garrett used a TIP-120 Darlington transistor, a capacitor, a resistor, and a heat sink to create a sensor that can detect when its electrodes have been immersed in a conductive liquid.
Garrett used a TIP-120 Darlington transistor, a capacitor, a resistor, and a heat sink to create a sensor that can detect when its electrodes have been immersed in a conductive liquid.