In this post I have explained a simple single phase jet water pump controller circuit using magnetic reed switch level sensor, and a set/reset circuit. The idea was requested by Mr. Nanigopal mahata Technical Specifications I am your blog follower,, i searched all the blogs for automatic submersible pump controller but i can’t understand which […]
Newly Updated Circuit Projects:
Two Pipe Water Pump Valve Controller Circuit
In this article I have explained how to control a two pipe submersible pump valve to ensure that the pipe bringing in the municipal water is always given the main preference to the bore-well water source. The circuit is also equipped with a tank overflow cut-off feature. The idea was requested by Mr. Prashant. Circuit […]
Transformerless UPS Circuit for Computers (CPU)
In this post I have explained how to build a simple UPS circuit for backing up computers or PCs during sudden power failures or brownouts. Introduction Normally when we talk about uninterruptible power supplies (UPS) we imagine large inverter units with complex features, where it imperatively needs to be a pure sine wave type. Such […]
Make this Red LED Sign Circuit
The post presents a simple transformerless red LED sign circuit which can be made even by a novice. The circuit uses only a few high voltage capacitors, two resistors, and a few red LEDs…. nothing more. The circuit idea and the images were submitted by Mr. John Hungerford. The following email was sent to me […]
Blinking an LED with Arduino – Complete Tutorial
The post comprehensively discusses a basic Arduino code implementation guide for blinking its on-board LED. The data was built, tested, and written by Jack Franko. CODE: for simply inbuilt LED on pin 13 of ARDUINO BOARD by default it is programed to blink frequently at 50 Mili Seconds as it in description it will […]
Variable LED Intensity Controller Circuit
The post presents a couple of simple LED intensity controller circuit which may be appropriately configured for specific related applications. The idea was requested by Mr. Chand. Technical Specifications I would like to have a circuit designed by you which is very simple and straightforward. This will be incorporated as a stand alone feature in […]





