(Schematic Goes Here)
Task: Create a circuit using pushbutton and relay. Push button will switch LED from lighting Red LED to lighting Green LED. Data sheet of the relay can be found here: http://www.hongfa.com/pro/pdf/HFD31_en.pdf
Task: A relay Oscillator. Now, the contacts in the relaxed state feed power to the coil as well as to one of the LEDs, but then it energizes the coils and opens the contacts making a very quick cycle. It oscillates 50 times/second. Only press it very briefly because it is likely to burn itself out or destroy.
Task: Adding capacitance. Add a capaciter to the circuit so that when the pushbutton is pushed, the LEDs alternate just like a car blinker light.
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