555 Timer Board
Overview
This printed circuit board aims to use a 555 timer circuit as an astable multivibrator to produce a square wave of desired frequency of 500 Hz and duty cycle of 60%. The load is driven by LEDs with different resistor values to observe the variation in current drawn across the output and see which has the most light.
PCB schematic
PCB Layout
Board powered on
figure 1 rise time with and without load
figure 2 period and frequency with and without load
In both figures 1 and 2 We can observe a voltage drop in the 555 timer output this is due to the powering of the LEDs we can also see with eyeball measurement the period being 2ms hence a 500 Hz period
