As an example circuit Marc brought the schematic of a micro television transmitter (designed by Tetsuo Kogawa) which can transmit video signals that can be received by a common analog television with an antenna. The first thing to learn was how to design a circuit layout in the free available Eagle software: First decide which [...]

Power Supply 0-24V 0-3A Source: elektronicastynus

By  Talip Kiziltepe email: talip_kililtepe@hotmail.com Here is my 220v flash light circut i do try very good working.

This board can program an AVR microcontroler ATMEL (ATmega8, ATMega32, …) from a parallel printer LPT1 using ISP functionality In System Programming. This programming type can program and/or configure microcontroler directly on the target board without rmoving device and put it on a separate programmer. This board is compatible with programming software “PonyProg”. Source: G. [...]

The project name says it all. It is a device that will charge things like Ipods, PDAs, other other devices that plugs into a USB to charge. Source: GoodAtIt

This is a simple design that demonstrates the USB peripheral on the PIC 18Fs. There are a bunch of examples for the 18F4550 40 pin chips online, this design demonstrates the smaller 18F2550 28 pin version. The PCB uses surface mount parts, but all components are available in through hole versions. Source: ian

Certain buttons on a TV remote can get worn out over time. In my case it was the channel up and channel down buttons. The contacts on the bottom of the button are likely worn out. This is how I fixed mine. Source: mmelville3

Monitoring several cameras on one monitor is usually done in one of two ways:  divide the screen into sections and show them all at once, or time sequence the cameras onto the whole screen. Source: Mondo

The idea for creating a USB sound card based on a PIC came from discussions of other people creating one on the Microchip USB forum. The hardware of the card is based on all Microchip products. The software uses a modified version of the Microchip USB framework which is interrupt driven instead of the traditional [...]

Almost all of you have seen or used an automated drinks maker, so I presume you have a rough idea on what is an automated drink maker. Please note that this project was my degree 2nd year group project , at Northumbria University. Even though the steps outlined below, will have sufficient information to build [...]

Devices known as electrical key-lock can de found in many versions,specificity of that device is a new way to read more keys using only one input of microcontroller. More information about KeyLock you can find in magazine “Svijet elektronike”, nr. 51, April/May 2005. Source: Ivica Novakovic