Multi Mode Timer Circuit
No one can call themselves an electronics hobbyist unless they have built a timer. There are several designs using a variety of new and sometimes old circuits. Witness the longest surviving IC of all, the 555, introduced over 20 years ago. Most timers have one characteristic - they only timed one thing; an egg timer, a delayed timer, a timeout timer, a flasher, a photographic timer, etc. As you will see these days are almost over.
Micro-controllers have changed all that. This kit contains Seven different timing modes using only ONE IC and a few components on a single-sided PCB. This is a lot less than many single-mode traditional timers. The timing modes and delay ranges are selected by on-board DIP switches. Simply select the time delay you want and that's it - no adjustment required.
Multi Mode Timer Circuit Reviews: