There are at least twelve simple experiments that can be performed using IC 555 and simultaneously learn the theory and digital logic behind its operation. Here you will find the first six experiments and the rest will be provided in second part of this article to follow soon.
Although these circuits are experimental and non-conventional, they help in understanding the IC that comprises a voltage divider, trigger comparator, threshold comparator, SR flip-flop, discharge transistor, reset transistor, and the output stage. These also help in understanding its three modes of operation: monostable, astable, and bistable.
All the experiments are simple and can be performed on a breadboard. A power supply of 5V to 9V DC may be used for all the circuits (although, according to its data sheet 4.5V to 15V can be used). The operation of all the twelve experiments is confirmed by the glowing of LEDs.