Featured Member Projects

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  Line Following Robot

  Posted May 21, 2012 By Rinkesh Kurkure

  How to Mod the Servomotors (look at the pictures) Remove the four screws from the servo and take it all apart. Remove the electronics keeping only the wires from the motor (I kept the other 3 wires from the potentiometer but you don’t have to). Try to fit the gears except for one. I glued the big gear to the one beneath it so to be high enough to “get out” of the case. It isn’t…
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  Independent Design Houses in China

  Posted May 05, 2012 By Embedded Developer

  A series of two-dozen interviews with industry executives complemented the survey results to provide a fuller picture of this dynamic service sector that has become a vital part of today’s product design and development process in China’s electronics industry. China’s IDHs have relationships with all parts of the electronics value chain. They play a key role in supporting the…
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  Car Alarm System

  Posted May 04, 2012 By Abba Ba

  This project is practical, and the hex file, it can get. Button switch to disable the system. Button to open the door for when the driver enters the cars, and system deactivates the trigger button, if starter switch is closed, the device is completely passive. In this mode, only open or close doors button can be used. “proteus 7.8 or 7.9 (car alarm system…
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  Digital Clock using AT89C4051

  Posted May 04, 2012 By Nikhil Dhandare

  Here is an image of the circuit board. Here is an image of the circuit. The symatic of project on proteus and code for that provided in rar file.
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  Water Alarm Circuit

  Posted May 04, 2012 By ER.vindhya vasini Manath Mahajan

  This circuit gives out an alarm when its sensor is wetted by water. A 555 astable multivibrator is used here which gives a tone of about 1kHz upon detecting water. The sensor when wetted by water completes the circuit and makes the 555 oscillate at about 1kHz. The sensor is also shown in the circuit diagram. It has to placed making an angle of about 30 – 45 degrees to the ground. This…
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  Temperature and relative humidity meter using an inexpensive DHT11 sensor

  Posted Jan 17, 2012 By RAJENDRA BHATT

  DHT11 is the most inexpensive sensor currently available in the market that provides calibrated digital outputs for temperature and relative humidity. It is available in a single row 4-pin package and operates from 3.5 to 5.5V power supply. It can measure temperature from 0-50 °C with an accuracy of ±2°C and relative humidity ranging from 20-95% with an accuracy of ±5%, thus making it…
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  300 Watt MOSFET Real HI-FI Power Amplifier

  Posted Dec 31, 2011 By Circuit Projects

  I am committed to sharing my experience of the RAS 300 with other enthusiasts sharing my passion for perfection.I designed this minimalist amplifier to be durable, simple to operate while offering high fidelity equivalent to the original sound source and would recommend partnering this amplifier only with other products of outstanding quality. When I set out to design this amplifier,…
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  PIC Controlled Relay Driver

  Posted Dec 31, 2011 By Circuit Projects

  The components are listed below. 1 x PIC16F84A Microcontroller 1 × 220V/12V 3.6VA (or 3.2VA) PCB Type Transformer (EI 38/13.6) 1 x Line Filter (2×10mH 1:1 Transformer) 4 × 12V Relay (SPDT Type) 4 x BC141 NPN Transistor 5 × 2 Terminal PCB Terminal Block 4 × 1N4007 Diode 1 × 250V Varistor (20mm Diameter) 1 x PCB Fuse Holder 1 × 400mA Fuse 2 × 100nF/630V Unpolarized Capacitor 1 × 220uF/25V…

New Projects by EEWeb Members

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  Line Following Sensor

  Posted May 23, 2012 By Nikhil Dhandare

  In robotics when we make line follower either black line follower or White line follower we need line follower sensor. Easy method to make…
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• electronics work bench

  Posted May 02, 2012 By LAKSHMI NARAYANA

  including all apparatus instruments in one bok.
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  Android Bluetooth Oscilloscope

  Posted Apr 22, 2012 By Sopheak Chea

  Please share me the ideas of making this project.
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• ac to dc power supply

  Posted Apr 08, 2012 By Hasham Jamil

  The small project simply explain us how can we make an adjustable power supply by our self. This DC power supply gives us 0 to 12v adjustable voltage that can be easily adjust through variable…
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• power generation floor boards

  Posted Mar 31, 2012 By Ashesh Sharma

  currently doing a thesis on this topic if anyone can guide me a bit i will be so honored
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• automatic irrigation system using soil moisture sensor

  Posted Mar 31, 2012 By Ashesh Sharma
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• temperature sensor using lm 35 transducer

  Posted Mar 31, 2012 By Ashesh Sharma
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• The Naming System

  Posted Mar 22, 2012 By Precious O'Brien

  This chart is a cheat sheet that will help you better understand our product numbers and their meaning
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• Benefits of VLCD over VFD Modules

  Posted Mar 22, 2012 By Precious O'Brien

  This White paper will outline the vivid benefits of liquid crystal display (VLCD), in comparison to the vacuum fluorescent displays (VFD). Differences in the technical specifications that highlight…
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• Smart dual polarity power supply

  Posted Mar 17, 2012 By Nismin Pako

  I will please need your help for the circuit characteristic of a dual polarity power supply using a central tip transformer,fuse, LED, voltage regulators, with 5V-15V output voltage.
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