In this post I will show how to construct a farmer friendly GSM pump motor controller circuit which couldturn on and off the irrigation system remotely from anywhere in the world via cellphone SMS and return you with an acknowledgement message. The idea was requested by Mr. PG Ragavandir. The Design Agriculture is one of […]
Controller
5 Simple DC Motor Speed Controller Circuits Explained
A circuit which enables a user to linearly control the speed of a connected motor by rotating an attached potentiometer is called a motor speed controller circuit. 5 easy to build speed controller circuits for DC motors are presented here, first one using MOSFET IRF540, second one using IC 555, the third concept with IC […]
Simple Gate Open/Close Controller Circuit
The simple gate open and close controller circuit is designed to operate the gate through a couple of push buttons manually, it can be also modified for implementing the activation through a remote control. How it Works Referring to the shown, simple gate open, close controller circuit below, we can witness a rather straightforward configuration, […]
LM35 IC Temperature Controller Circuit with Push Button
In this post I have explained a simple yet very accurate temperature controller circuit using IC LM35, featuring an automatic cut off with a push button latch. LM35 is a precision temperature sensor IC, which can be effectively used for detecting temperature differences accurately. For more details regarding this IC you can refer to this […]
Aquarium Fish Feeder Timer Controller Circuit
In this post I have explained an aquarium feeder timer circuit which sustains a set of continuous operations as per a predetermined timing sequence through the respective pot controls. The idea was requested by Mr. Mike. Technical Specifications I am trying to build a timer circuit to control an automatic fish feeder. It needs to […]
Simple RGB LED Controller Circuit
In this post I have explained how to make a simple RGB (Red, Green, Blue) LED controller circuit which may be designated to flash a group of RGB LEDs with a particular sequencing pattern. The idea was requested by Mr. Navdeep. Technical Specifications I want to make a display board with red, green and blue […]