This photo is from this instructables project here There are many stuff on the internet about this project, but we are gonna add something or two. This circuit was a school project and it was a 24h clock, but i decided to extend it to 12h and 24h with the transferring between them using a switch so you can choose whatever mode you want. Anyway, i made this circuit just for fun so i just simulated it on proteus, i.e we're not going into pcb design. The final project First of all we're going to divide this tuorial into 3 parts: - How it works in the 24h mode. - How it works in the 12h mode. - How to transfer between them using simple switch. So... let's get started with the first one..
Some thoughts of mine, usually bad thoughts