Electronics Projects: How to Make an LED Flasher Using a Timer
Chip In this project, you build an electronic circuit that uses
a 555 timer chip to alternately flash two LEDs on and off. Then,
you modify the circuit so that the circuit is controlled by two
pushbuttons that function as a set/reset switch. Build an
electronic LED flasher circuit For this circuit, the 555 is
configured in 555 in astable mode, and the resistor values are
chosen so that they cause the high and low timings to be very
close to one another, about one-tenth of a second each. LED1
lights when the output is high, and LED2 lights when the output
is low. Note that this circuit uses both sinking and sourcing of
the output current. If the circuit doesn’t work, here are a few
things to check: Check the battery voltage. Double-check all the
jumper wires and resistors to make sure they're inserted in the
proper holes. Make sure the diodes and the electrolytic
capacitor are inserted correctly. For the LEDs, the anodes must
be on the positive sid