555 Timer Circuit Pcb Layout. The discharge pin i e. Then turn off the s4.
The other main components are the resistors r1 r2 pushbutton s1 capacitors c1 c2 diodes and a 12v spdt type relay. Playing with eaglecad and making a 555 timer circuit. Then turn off the s5.
Then turn off the s5.
The potentiometer vr1 defined the rate of charging and discharging thus the duty cycle of the pwm output. This exercise will lead through the steps to make the artwork for producing a printed circuit board. In this time delay relay circuit the 555 timer is used in the monostable mode. The potentiometer vr1 defined the rate of charging and discharging thus the duty cycle of the pwm output.