We found this circuit in the October 1996 Electronics Now magazine. The circuit uses LDRs as sensors and drives relays. The relays must have voltages according to the power supply.
This oscillator can be controlled by light if we use an LDR as a sensor, or by temperature, if we...
November 2016 - The new wireless power modules for use in wearables from Semtech can now be...
This circuit supplies voltages from 6 to 18 V with a maximum current of 2 A. We found it in a...