The post explains a simple electronic door circuit for pets which can be used as an electronic dog door for allowing only your specific pet dog to use the entrance, […]
Search Results for: timer
Switching Two Alternate Loads ON/OFF with IC 555
In this post we learn how to make a simple IC 555 based alternate relay timer circuit for toggling a couple of loads alternately with a specified length of delay, […]
Simple Refrigerator Protector Circuit
This simple refrigerator protector circuit is actually a delay ON timer circuit which makes sure that whenever a power failure occurs or in case abrupt power fluctuations take place, the […]
Laser Activated GSM Call Alert Security Circuit
In this post we discuss a simple laser GSM call alert security circuit which immediately calls the master as soon as an intruder is detected through a laser beam interruption. […]
7 Best Touch Sensor Switch Circuits Explored
The post details 8 easy methods of building touch sensor switch circuits at home, which can be used for switching 220 V appliances ON/OFF with mere finger touch operat ions. […]
Make this Touch free Faucet Circuit for Hands-free Tap Control
A very simple touch free faucet circuit or touch free automatic tap circuit can be built using as little as an IC 555 and a few passive components, in order […]