Sensor-Activated Relay Pulser Circuit

  
A sensor turns on Ql to activate the low-frequency 555 oscillator, which pulses LAMP II. Sensor may be sensitive to changes in light or temperature. Either RA or RB can be sensors, as desired. A decrease in RB or an increase in RA will cause the NE555 to flash M.
Sensor-Activated Relay Pulser Circuit - schematic

fl and RB should be 100 kohm max.




Leave Comment

characters left:

New Circuits

.