Wireless circuit diagram needed for an Electromagnet.
Hey guys, i urgently need to build a wireless circuit using a simple on/off electromagnetic circuit that would drop a metal object when the circuit is switched off. i have a 12V dc powered electromagnet as well as RF receiver and transmitter pair. the receiver needs to be fitted with the electromagnet and i would be using 4.5v dc power supply for the receiver using 3x1.5V button cells.
Kindly help me with circuit diagrams and/or a list of other components such as generic IC/ timer 555/ resistors, capacitors, etc. which would be needed for me to build the circuit.
Thanks a lot.