The following article presents a basic circuit for a charger for mobile phones with a timer that can be used to charge a particular mobile phone for a predefined amount […]
Simple Relay Delay Timer Circuits using IC 4001
All of the figures below demonstrate how CD4001B CMOS NOR gate ICs can be used to create highly reliable delay relay timer circuits, with time interval range from a few […]
Universal Digital, Programmable Timers Circuits
The MC14541B (or 4541) is a low cost IC that occupies a CMOS timer consisting of a 16-stage binary counter, an internal RC-oscillator circuit and an automatic power-up reset circuit, […]
Accurate 24 Hour Timer Circuit
The post explains a simple 24 hour precision timer circuit using just a couple of CMOS ICs, which can be used for switching ON or OFF any mains operated load, […]
Arduino 2-Step Programmable Timer Circuit
The following article explains methods to create a basic 2-step Arduino programmable timer circuit that can be used to separately alter the ON and OFF timings of an electrical load. […]
Simple Egg Timer Circuit
The article provides a simple egg timer circuit or a kitchen timer circuit which will sound a small in-built buzzer as soon the preset cooking time for the specific recipe […]