This circuit triggers a small water pump when the humidity detected by the sensor is reduced in a flower bed or potted plant. The circuit must use a source according to the driven water pump.
This PUT oscillator circuit has a frequency of 1 Hz. We find it in a General Electric...
This circuit for the car uses LDRs as sensors and does not need to be connected to the lamp. The...
This circuit of an Electronics Now from the 90's produces an intelligent direction signal that has...