This simple circuit was found in Popular Electronics from 1992. The transistor is a general-purpose type, and the buzzer is an oscillator type according to the supply voltage.
Humidity sensor (CB22467E)
- Details
- Written by: Newton C. Braga
This simple circuit was found in Popular Electronics from 1992. The transistor is a general-purpose type, and the buzzer is an oscillator type according to the supply voltage.
