Prototypes

A prototype is an early sample, model, or release of a product built to test a concept or process or to act as a thing to be replicated or learned from.

wireless video surveillance robot

IoT Projects: Wireless Video Surveillance Robot using Raspberry pi

Video surveillance is the process of monitoring a situation, an area or a person. This generally occurs in a military scenario where surveillance of borderlines and enemy territory is essential to...

Laser Security System

This project powered using a mobile charger which gives 6volts and 500mA. It can also powered using battery ranging 6volts. In this 2x5v relays are used. There is a simple password...

Dual bridge driver on expansion module with L293P for Arduino

The short article describes simple but useful four channel driver expansion module with L293P for Arduino. The board can be called power shield, motor shield or driver shield because gives the possibilities...

Low-Cost PWM Module For Arduino Or Development Kit With MCU

This short article describe simple circuit capable to convert a TTL/CMOS PMW signal to analog signal. The circuit can be used as extension shield for Arduino, with simple MCU or with TTL/CMOS...
satellite finder circuit

Digital satellite finder

This article describes a satellite finder that we can build ourselves to assist with aligning the satellite TV dish without having to take our receiver outside. We are proposing a signal...

Wristband Based GPS Navigation System

The GPS and the sensor technologies have been evolved over the past decade in the global market of transport and navigation. These technologies lead the world for more safety of people...

Micro-Solder Pot

To make a great solder joint, component preparation is a must. This sounds unimportant, but it is very important to clean the component leads, wires and contact surfaces prior to soldering...

Low-Cost Universal Dual Channel Audio Checking And Troubleshooting Tool

Frequently, we are in need to do audio troubleshooting of electrical and electronic components, installations and equipment. E.g. we may need to check, test and evaluate:microphones loudspeakers headphones audio filters preamplifiers the...
circuit for measuring charging/discharging current

Measuring The Charging And The Discharging Current Of The Battery

When we work with rechargeable battery it is useful to have the following functions:measuring the charging current, measuring the discharging current, measuring voltage over the batteryBut in order to measure...

Multi Channel Hardware Driver for Embedded Systems

The real world embedded systems are controlling DC motors, stepper motors, electromagnetic relays, incandescent lamps, powerful LEDs, displays, inductors, transformers, long cables, etc.On the market we can find large variety of...