Design low-duty-cycle timer circuits This Design Idea uses the TLC555 CMOS timer for a standard, greater-than-50%-duty-cycle, low-frequency design. 555 makes handy voltage-to-time converter This ...

The project is aimed at Arduino-based circuits, but any chip with an ADC will work. The 555 timer is used as a free running oscillator.

Looking for a light project to teach young hackers some very basic electronics? Here’s a quick and easy weekend project, a simple metal detector! We all know 555 timers are very useful and po… ...