In this article I have explained a simple temperature controlled relay circuit which can be switched ON/OFF depending on the temperature on its temperature sensor. Meaning, when the temperature on its temperature sensor rises above a set threshold point, the relay switches ON, and when the temperature drops below the threshold, the relay switches OFF. […]
Controlled
Solving LDR Controlled LED Emergency Lamp Problem
The following post discusses the troubleshooting of an automatic LDR controlled emergency lamp circuit which was requested to me via email by one of the keen followers of this blog. I have explained about the issue and its solution. Technical Specifications Dear Sir, I am following you on your website and I thank you for your valuable […]
Remote Controlled Submersible Pump Circuit
In this article I have explained a simple remote controlled submersible pump circuit which could be simply configured using any standard 2 channel 433MHz remote control modules. The idea was requested by Mr. James Smith Circuit Objectives and Requirements I have read a lot of your post and have successfully implemented them several times. Now […]
Convert any Existing AC Lamp into Timer Controlled Lamp
The proposed push button timer circuit module can be directly integrated with any existing switch contacts of a lamp and enable the lamp to be converted into a timer controlled lamp. A common problem arises whenever one wants to replace a mains AC lamp controlled by a switch with a timer or a time switch. […]
Temperature Controlled DC Fan Circuits
Have you ever turned up your amplifier all the way, either at a party or just for fun? You may have noticed that “it gets hot” and thought that a fan would be useful. However, at low listening levels, you can hear the fan running. With this circuit, the fan will be automatically controlled by […]
Timer Controlled Exhaust Fan Circuit
This simple timer oscillator circuit can be used for automatically switching an exhaust fan ON/OFF as per a fixed predetermined period. The circuit was requested by Mr. Anshuman. Technical Specifications Here is a suggestion for the circuits on your blog. The idea is to have a very simple Oscillating circuit will delays of 5-10 minutes to […]