PIC and EEPROM Programmer
Posted Jan 20, 2012 at 12:26 pm
In this project we are building a JDM programmer that can handle PIC12, PIC16 and PIC18 family microcontrollers and some popular 24C family EEPROMs.
Digital Voice Record and Playback Project by ISD2560P
Posted Jan 14, 2012 at 9:56 am
This project is based on ISD2560P IC which allows you to record 60 seconds voice and then playback it with very high quality.
Electronic Fuse for DC Short Circuit Protection by BRX46
Posted Jan 13, 2012 at 1:47 pm
This is an electronic fuse that protects the load against short circuit.
PWM Fan Controller by LM2902N or LM324N
Posted Jan 10, 2012 at 3:23 pm
This circuit is a fan controller which is using the pulse width modulation (PWM) method. It is tiny (33.78mm x 54.76mm) and easy to build. Functions of the circuit parts are listed below;
LM3886 Gainclone 2x68 Watt Full Amplifier Project
Posted Jan 10, 2012 at 1:14 pm
In this application, we are building a gaincard like amplifier. This application type is named gainclone in the audio world. To take a satisfactory audio response, we are adding a Linkwitz equaliser to the feedback line and adding bass compensation also.
Electronic Thermometer Project by LM35 and LM3914
Posted Jan 10, 2012 at 11:09 am
As shown in the schematic, temperature sensor of our electronic thermometer is LM35DZ. There are some kinds of LM35 IC, since it is cheap and easy to find we used LM35DZ in our project. It measures from 0°C to 100°C with a very linear output graph.For one degree change, it increases its output 10mV.On theElectronic Thermometer Schematic other hand, this circuit measures temperature values only between +10°C and +39°C.
Low Cost 2x20 Watt Stereo Amplifier by TDA2005
Posted Jan 10, 2012 at 10:57 am
This circuit is a small stereo amplifier for all suitable applications like amplifying small speakers, boxing, etc. It is also suitable for car use but before, the power supply must be choked with at least 150mH and it must give up to approximately 6 to 7 amps during the upstream performance.
Frequency Counter by PIC16F628
Posted Jan 10, 2012 at 10:31 am
In this project we are building a basic and low cost frequency counter circuit . It can measure from 16Hz to 100Hz signals with a maximum amplitude of 15V. The sensitivity is high, the resolution is 0.01Hz. The input signal can be a sine, a square or a triangle waveform.
PWM DC Motor Controller Using MOSFETs and IR2110 H-Bridge Driver
Posted Jan 10, 2012 at 10:21 am
H Bridge configuration is commonly used in electrical applications where the load needs to be driven in either direction. A typical H-Bridge structure is shown below;
RS232 - RS485 Converter with Automatic RX - TX Control
Posted Jan 10, 2012 at 9:47 am
Today, although the wireless technology grows very fast, the long distance funicular communication still keeps its popularity. The reason is obvious that cost and complexity is high at the wireless communication.
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