| This circuit shows how a 4017 CMOS decade counter can be used to build a timer circuit. Pushbutton S1 will discharge capacitor C1 through re...
| This circuit shows how a 4017 CMOS decade counter can be used to build a timer circuit. Pushbutton S1 will discharge capacitor C1 through re...
| The well-known ‘sleep’ function in clock radios and television sets switches off the equipment after a preselected time. However, what good...
| The timer was designed for switching off a battery charger after a predetermined time to avoid overcharging. It may, however, be used for...
| This universal countdown timer is good example of what can be achieved in terms of bare-bones hardware when using a powerful microcontroller...
| Although the timer was designed specifically for use with an ultra-violet-light box, it may, if course, be used for other purposes as we...
| Simple triangle-wave generators have a weakness in that the waveform of their output signal normally cannot be modified. The circuit pre...
| Although we would not denigrate the many photographic development and printing services (wh ich vary fram poar to fairly good), it is...
| The timer is based on a Type 4536 from SGS-Thomson. This IC contains 24 series-connected binary scalers, which divide the frequency of t...
| Few of you will be impressed by the fact that this circiut tuns on a light if you press a switch. The thing is, however, that the light goes...
| Timer-2 can also generate interrupts. An interrupt is generated If tt has been enabled (bit 5 in regtster IENO), and if subsequently the T...