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.
Continue ReadingGarrett 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.
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