Remote Controlled Trolley Circuit without Microcontroller

Apr 29, 2015

The post explains how to make a cheap yet powerful remote controlled trolley which can be maneuvered left, right, forward and reverse as required, by the user using the given remote handset. The idea does not rely on an MCU circuit.

How to Make a Variable Current SMPS Driver Circuit

Apr 26, 2015

This article discusses a method through which any ready made SMPS can be converted into a variable current smps circuit using a few external jumper links.

Make this Ultrasonic Remote Control Circuit

Apr 22, 2015

This article discusses about a simple ultrasonic remote control circuit which can be used to switch any appliance using the relay in the receiver circuit.

Car Fused Brake Light Bulb Indicator Circuit

Apr 21, 2015

The post explains a simple fused or blown car brake light indicator circuit using a single IC 555 and a few other passive components. The idea was requested by Mr. Joel Bayongasan

How to Make a Variable SMPS Driver Circuit

Apr 20, 2015

This post tries to determine a method through which any SMPS could be made into a variable power supply for achieving any desired voltage level from 0 to maximum.

Water Flow Valve Timer Controller Circuit

Apr 19, 2015

The article details about an automatic water flow controller timer circuit which switches a valve mechanism ON/OFF as per a set predetermined timing sequence. The idea was requested by Mr. John Clarke.

Solar 3 Phase Inverter Circuit

Apr 18, 2015

In this post we learn how to design a simple solar 3 phase inverter circuit using just a few specific ICs.

Simple Remote Controlled Fan Regulator Circuit

Apr 16, 2015

The article discusses a simple infrared controlled fan regulator or dimmer circuit using ordinary parts such as a 4017 IC and a 555 IC.

5 Ways to Automate Your Housekeeping with Smart Devices

Apr 15, 2015

In an age of technology and automation, it is easy to focus on gadgets that take extra time rather than technology that can free up time. Life can be made easier by letting technology clean the floors, the air, wash and iron clothes, and feed the pets.

Motor Over Current Protection Circuit

The post analyzes an automatic motor current overload controller circuit design. The idea was requested by Mr. Ali.

Make this Simple Motor Toy Circuit with Reverse Forward Timer

Apr 14, 2015

The post explains a simple programmed reverse forward motor circuit which is used for accomplishing a toy application. The idea was requested by Mr. Matthew.

Add this LED Brake Light to your Motorcycle and Car

Apr 13, 2015

The post explains how to make and replace existing bulb type brake lights in vehicles with high efficiency LED lamps.The idea was requested by Mr. Awan.

How to Use Resistors in Electronic Circuits

Apr 11, 2015

In this post we learn how to use resistors while designing an electronic circuit. This article can be very useful for the new hobbyists who normally get confused with the resistor values to be used for a specific component and for the desired application.

Battery Current Indicator Circuit

Apr 10, 2015

In this post we learn about a simple battery current sensor with indicator circuit which detects the amount of current consumed by the battery while charging or by any other load and displays it through discrete LEDs.

MPPT vs Solar Tracker - Differences Explored

Apr 9, 2015

The post investigates two popular solar harnessing counterparts the MPPT and the solar tracker, and figures out the major differences between these two outstanding free energy spinning devices.

High Current Li-ion Battery Charger Circuit

Apr 7, 2015

The post explains a high current Li-Ion battery charger circuit which can be used for charging any high current, high AH rated Li-ion battery from a 12V or a 24V source such as from a car or a truck battery. The idea was requested by Mr. Neil

MPPT Lead Acid Battery Charger Circuit

Apr 2, 2015

The post explains a simple yet effective MPPT lead acid battery charger circuit using the IC bq2031 from TEXAS INSTRUMENTS.

Mains LED String Light Circuit

The post explains how to make a LED string light which can be operated from 220V mains through a single inexpensive PPC capacitor. The idea was requested by Mr. Basit Momin.

Gas Leakage Alarm Circuit

Are you feeling vulnerable or suspecting a possible LPG gas leakage in your house? Then may be this gas leakage alarm circuit might help you.

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