Time Interval Relay Circuit for the clock circuit above This is a programmable clock timer circuit that uses individual LEDs to indicate hours and minutes. 12 LEDs can be arranged in a circle to represent the 12 hours of a clock face and an additional 12 LEDs can be arranged in an outer circle to [...]
Heart Lamp with Flashes 18 LEDs Circuit This activity flashes 18 LEDs at three altered ante and you can use these to actualize an clear Valentine Heart. The ambit is kept simple (and low cost) by application the 4060B IC which is a adverse and oscillator (clock) in one package. The ambit requires a 9V [...]
Led Flasher with IC 555 Circuit A dual tandem flashing light circuit powered by a 9 volt battery, This circuit is powered by a 9 volt battery, suitable for warning lights on a tall structure. (Personally, I can’t recommend you buy anything but the Rollins Railroad Designs kit; for $4.00 you can’t go wrong. The [...]
