PCB Projects

Application from microchip for a fully automatic LiPo single cell charger from the USB port. Imax 500mA Size: 26.6 x 15 mm

this circuit can be used to interface Thermocouple and micro controller to detect wide range of temperatures.

ads1234 Board

UV PowerLED Connector for ACULED VHL. Eagle v6.6.0

Schaltplan für HCAN Controller 1612 mit I2C-Konnektor und DS1812

Board Platine für HCAN Controller 1612 mit I2C Expander und DS1812-Anschluß

A small breakout board for the Atmel ATtiny48 with a 6-pin programming connector. This board is breadboard friendly.

Mạch in đo dòng AC

Mạch nguyên lý đo dòng AC sử dụng ACS172T-20A

The AVR Trainer Board is a complete starter kit for the AVR Flash Microcontroller. It is designed to give designers a quick start to develop code on the AVR Flash Microcontrollers, combined with advanced features for using the starter kit for prototyping and testing of new designs.

USBasp is a USB in-circuit programmer for Atmel AVR controllers. It simply consists of an ATMega88 or an ATMega8 and a couple of passive components. The programmer uses a firmware-only USB driver, no special USB controller is needed. Its the onesided design, I tested this design in real hardware and working perfect. Enjoy.

A small breadboard friendly module with an Atmel ATmega169 with a 4-digit LCD display and 5 push button switches. Included is an assembler program providing the initialization and some useful routines. It uses the GNU assembler for AVR.

The Arduino Ethernet Shield connects your Arduino to the internet in mere minutes. Just plug this module onto your Arduino board, connect it to your network with an RJ45 cable (not included) and follow a few simple instructions to start controlling your world through the internet. As always with Arduino, every element of the platform – hardware, software and documentation – is freely available and open-source. This means you can learn exactly how it's made and use its design as the starting point for your own circuits. Hundreds of thousands of Arduino boards are already fueling people’s creativity all over the world, everyday. Join us now, Arduino is you! -Requires an Arduino board (not included) -Operating voltage 5V (supplied from the Arduino Board) -Ethernet Controller: W5100 with internal 16K buffer -Connection speed: 10/100Mb -Connection with Arduino on SPI port

The Arduino WiFi Shield connects your Arduino to the internet wirelessly. Connect it to your wireless network by following a few simple instructions to start controlling your world through the internet. As always with Arduino, every element of the platform – hardware, software and documentation – is freely available and open-source. This means you can learn exactly how it's made and use its design as the starting point for your own circuits. -Requires an Arduino board (not included) -Operating voltage 5V (supplied from the Arduino Board) -Connection via: 802.11b/g networks -Encryption types: WEP and WPA2 Persoanl -Connection with Arduino on SPI port -on-board micro SD slot -ICSP headers -FTDI connection for serial debugging of WiFi shield -Mini-USB for updating WiFi shield firmware

The Arduino GSM Shield connects your Arduino to the internet using the GPRS wireless network. Just plug this module onto your Arduino board, plug in a SIM card from an operator offering GPRS coverage and follow a few simple instructions to start controlling your world through the internet. You can also make/receive voice calls (you will need an external speaker and microphone circuit) and send/receive SMS messages. As always with Arduino, every element of the platform – hardware, software and documentation – is freely available and open-source. This means you can learn exactly how it's made and use its design as the starting point for your own circuits. Hundreds of thousands of Arduino boards are already fueling people’s creativity all over the world, everyday. Join us now, Arduino is you!

An other smal circuit using max2606 maxim's ic.More detail you can find here: http://www.maximintegrated.com/app-notes/index.mvp/id/5123 I design the schematic as the figure 2 "The FM transmitter circuit with a direct audio input eliminates background noise from the microphone". The only thing you need that check the schematic or pcb layout for mistakes. Thanks maxim for ic samples.

Ladegerät für 3.6V Li-Ionen, Li-Polymer Akkus. Versorgung über 5V USB Netzteil mit Mini USB Stecker (Mobil.Telefon oder ähnlich). Auch geeignet für NiCad und NiMH Zellen. Ldaestrom einstellbar von 15mA bis 500mA. Benötigt werden lediglich 6 Bauteile auf einer Leiterplatte von 24,5x20mm. Bauteilkosten ca. 1,30€ zzgl. PCB ohne USB Netzteil.

Signalinverter 8 Kanäle mit ULN2803, max 500mA/Kanal. Benutzt bei Siemens LOGO (Transistorausgang liefert positives Signal) zum Ansteuern von Dual-LED (rot/grün) in Tastern Nikkai UB2-15H2, da diese gemeinsamen Anodenanschluss hatten.

A small circuit coming from pira.cz. I design the pcb again as double side also you can find most of components very easy. Look the above site for more informations adout schematic and mattetials.Thanks.

LED-Treiber für Spannungen von 6VDC bis 48VDC (75). Dimmbar mittels Potentiometer über PWM zwischen ca. 5% und 98% des maximalen Ausgangsstromes, welcher über den Sense Widerstand von 100mA bis 500mA eingestellt wird. Der PWM Generator wird vom LM3402 versorgt, weshalb hier nur CMOS Typen eingesetzt werden können. Die Versorgungsspannung, verpolgeschützt über eine Diode, kann über einen Kleinspannungsstecker max. 3A oder eine 2-polige Klemme zugeführt werden. Eine Weiterleitung der Versorgungsspannung zu weiteren Einheiten kann über die Klemmen erfolgen, so dass bei einer RGB Anlage nur ein Zuleitungsstecker benötigt wird. Die LED werden über eine 2-polige Klemme angeschlossen. Somit können an einem Ausgang bis zu 14 LED in Reihe versorgt werden, dies jedoch nur bei 48VDC Versorgung. Bei Spannugen über 36VDC muß die Schaltung jedoch direkt mit dem Netzteil verbunden werden, da mögliche Induktionspanngen beim Anschluss eines hochgefahrenen Netzteiles das Regel IC zerstören könnten.

Kleines Programmierboard für Mega8, 88, 168 und 32

A small circuit with two maxim's ic,max4467 as mic amplifier and max2406 as vco fm transmitter. Before you create the pcb check again the schematic also layout for mistakes,thank maxim for the samples.

The LM380 is a power audio amplifier for consumer applications. In order to hold system cost to a minimum, gain is internally fixed at 34 dB. A unique input stage allows ground referenced input signals. The output automatically self-centers to one-half the supply voltage. The output is short circuit proof with internal thermal limiting. The package outline is standard dual-in-line. The LM380N uses a copper lead frame. The center three pins on either side comprise a heat sink. This makes the device easy to use in standard PC layouts. Uses include simple phonograph amplifiers, intercoms, line drivers, teaching machine outputs, alarms, ultrasonic drivers, TV sound systems, AM-FM radio, small servo drivers, power converters, etc.

Modified Linistep, unipolar stepper motor driver. Goto www.RomanBlack.com homepage to get more information!.

CNC machine spindle optical tachometer amplifier, use very sensitive Toshiba optical interrupter TLP903 or equivalent.

Pulsweitenmodulation zum Steuern von DC-Motoren bis 5A bei einer Spannung von 6-30VDC. Die Steuerung erfolgt über ein Potentiometer, wobei in der Mittelstellung kein Signal ausgegeben wird oder je nach Jumperstellung die Brücke einseitig kurzgeschlossen wird. Durch verdrehen des Potentimeters wird die Pulsweite in beide Richtungen entsprechend der Einstellung ausgegeben. Auf ausreichende Kühlung der H-Brücke ist zu achten. Ein Bildsymbobol für das Potentiometer liegt als PDF bei.

Tested Pickit2 clone programmer for PIC10F, PIC12F,PIC16F, PIC18F microcontroller. rar file contains .sch and sigle layer pcb files.

Drehfeldanzeige mit optimierter LED Plazierung zur schnellen Kontrolle einer angeschlossenen CEE Steckdose mt Überprüfung von N und PE Anschlüssen, sowie RCD Auslösung für 30mA. Diese Schaltung ersetzt nicht Prüfgeräte nach DIN/VDE bei Anlageninbetriebnahme.

4-fach LED Anzeige im DIN-Rail Gehäuse mit 2TE für 230VAC

Fuente Simétrica 12V

Spannungsregler zum sicheren betrieb von mikrokontroller.

Preisgünstiges lineares Netzgerät für 12 - 13.8V /2-25A, geringe Verluste, Standard - Bauelemente. Preisgünstig: Bauteile unter EUR10 / USD10 (Q1/2013), plus Kühlkörper, Gehäuse, Transformator. Platinengröße ist fast 1/4 Europakarte = 3.1" x 2.35". Benötigt einen Standard Halogentrafo (11.5V), optional NTC/Lüfter-Kombination. Andere Spannungen / Ströme möglich. Siehe Beschreibung. Economic reduced-losses linear power supply 12 - 13.8V / 2 - 25A built with standard components. Low cost: below EUR10 / USD10 (Q1/2013), plus heat sink,housing, and transformer. Board size is about 1/4 eurocard = 3.1" x 2.35". Designed to operate with standard halogen lamp transformers, optional thermistor/fan combo. Different output voltages / currents possible. See documentation.

Arduino Uno Revision 3 1.0 pinout: added SDA and SCL pins that are near to the AREF pin and two other new pins placed near to the RESET pin, the IOREF that allow the shields to adapt to the voltage provided from the board. In future, shields will be compatible both with the board that use the AVR, which operate with 5V and with the Arduino Due that operate with 3.3V. The second one is a not connected pin, that is reserved for future purposes. Stronger RESET circuit. Atmega 16U2 replace the 8U2.

4 x LED zum Anschluss an 230V im Gehäuse ERNI IDG-B2 für Hutschienenmontage. Der LED Strom wird durch Kondensatoren auf ca 10mA begrenzt. Um ein Überstrahlen der Led zu vermeiden kann ein geeignetes Material zur Lichtführung eingesetzt werden z.B. Styrodur oder ein anderer sauber zu bearbeitenter Kunststoff.

The bq500210EVM-689 evaluation module (EVM) is a high-performance, easy-to-use development tool for the design of wireless power solutions. The EVM is a bqTESLA single-channel transmitter that will power the bq51013EVM-725 Integrated Receiver or any other Wireless Power Consortium certified receiver. Together, the bq500210EVM-689 Transmitter and bq51013EVM-725 Receiver enables designers to speed the development of their end-applications. Learn More www.element14.com/wireless-power-solution

The bq51013AEVM-765 wireless power receiver evaluation module from Texas Instruments is a highperformance, easy-to-use development kit for the design of wireless power solutions. Consisting of a 5-V power supply receiver and associated magnetics, the kit enables designers to speed the development of their end-applications. Learn more www.element14.com/wireless-power-solution

The bq500210EVM-689 evaluation module (EVM) is a high-performance, easy-to-use development tool for the design of wireless power solutions. The EVM is a bqTESLA single-channel transmitter that will power the bq51013EVM-725 Integrated Receiver or any other Wireless Power Consortium certified receiver. Together, the bq500210EVM-689 Transmitter and bq51013EVM-725 Receiver enables designers to speed the development of their end-applications. Learn More www.element14.com/wireless-power-solution

THIS IS A HUMIDITY CONTROLL GADGET. THE PARTS CAN EASILY BE FINDED , IT IS A VERY LOW COST GADGET, IT CAN BE USED IN ROOM COOLERS TO KEEP THE ROOM HUMIDITY FREE DURING RAINY SEASON. IT IS A MULTI PURPOUSE GADGET AND CAN BE USED IN INDIAN DESERT COOLERS, EASY TO ASSEMBLE. IT'S MAIN FUNCTION IS TO CONTROLL THE COOLER PUMP BY KEEPING IT ON FOR LIMITED TIME AND THEN THE DEVICE AUTOMATICALLY SWITCH IT OFF ACCORDING TO SETTED TIME THROUGH A VARIABLE RESISTOR. MAIN FEATURES ARE- 1) IT SAVE ELECTRICTY 2) IT SAVE WATER 3) PREVENT COOLER FROM CORROSION 4) ENSURE LONG LIFE OF COOLER PUMP 5) KEEPS ROOM COOL AT LOW COST 6) EASY TO USE/ASSEMBLE

mini amp tda2822 with 5v volts regulator use 22k pots for volume right and left along one can charge and run 4v lead acid batt use switch or relay at 7805 output 3 pin provided enjoy reach me at viji2ks@gmail.com

ULN2803A - Relay
Uploaded by Vu Duc Hoan from Viet Nam Maritime University

A small module to display a byte in hexadecimal. It is plugged into a breadboard via a right-angle header. Using an Atmel ATtiny48, it has the same voltage range for input. It can be reprogrammed for other uses.
Uploaded by Jacques Pelletier

An Arduino Shield with plugs for a BMA180, a BMP085, an SD-Reader, a Logic Level Converter, a Piezo Buzzer, two Led's, ports for two servos, and a port for an uMAD.
Uploaded by Max Tepermeister

CMoy Headphone Amplifier Project... CMoy is very simple portable headphone amplifier. .SCH and . BRD
Uploaded by Toni Rodrigues from xtronic.org

HCAN Hausautomatisierung http://www.iuse.org/, Bedienfeld mit Display fuer den CAN Bus Lizenz: GPL
Uploaded by Martin Haller from privat

HCAN Hausautomatisierung http://www.iuse.org/, Bedienfeld mit Display fuer den CAN Bus Lizenz: GPL
Uploaded by Martin Haller from privat

HCAN Hausautomatisierung http://www.iuse.org/, Bedienfeld mit Display fuer den CAN Bus Lizenz: GPL
Uploaded by Martin Haller from privat

HCAN Hausautomatisierung http://www.iuse.org/, Bedienfeld mit Display fuer den CAN Bus Lizenz: GPL
Uploaded by Martin Haller from privat

HCAN Hausautomatisierung http://www.iuse.org/, CAN Hostinterface zur Anbindung des CAN Busses an den PC Lizenz: GPL
Uploaded by Martin Haller from privat

HCAN Hausautomatisierung http://www.iuse.org/, CAN Hostinterface zur Anbindung des CAN Busses an den PC Lizenz: GPL
Uploaded by Martin Haller from privat

HCAN Hausautomatisierung http://www.iuse.org/, Controller-1612 mit Ein- und Ausgaengen fuer Sensoren wie Taster, Reedkontakte und Aktoren wie Relais, Heizungssteller etc. Lizenz: GPL
Uploaded by Martin Haller from privat

HCAN Hausautomatisierung http://www.iuse.org/, Controller-1612 mit Ein- und Ausgaengen fuer Sensoren wie Taster, Reedkontakte und Aktoren wie Relais, Heizungssteller etc. Lizenz: GPL
Uploaded by Martin Haller from privat

100 Watts DMOS audio amplifier circuit This circuit for TDA7293 - include the PCB .brd file and schematic .sch
Uploaded by Toni Rodrigues from xtronic.org

With this circuit you will be able to mount a mini stereo FM station and broadcast to your entire home, a simple way to have an audio link wireless with ease. With the FM transmitter BA1404 Hifi Stereo you can stream your music from your iPod MP3, satellite receiver, computer, DVD player, Mobile Phone, MP4 player and MP3 and other audio source directly to an FM receiver with crystal clear sound.
Uploaded by Toni Rodrigues from xtronic.org

Car Battery monitor with LM3914 and HP HDSP4832 led bar graph
Uploaded by Gianni De Angelis from Private

K8050 - stereo headphone amplifier (ver. 2010.02.20) with AD8610 & TPA6120.
Uploaded by Janusz Kostorz

Korregierte Version einer RFID Empf

pic12f508 based IR control night lamp，using a bright led。sch and brd files included。
Uploaded by Hate Math from earth

A variable (Pos&Neg) voltage PSU consisting of LM317(+) & LM337(-) voltage regulators. +37/0/-37 Rated MAX Voltage input. +34/0/-34 Rated MAX voltage output. Current rated at ~1,5A. By default, the design only displays the bare circuit in "board view", so just enable the necessary layers for component values and pinouts.
Uploaded by Bradlin Basson from South Africa

A small 1W Dual Channel audio amplifier using TDA2822 IC. Including volume controls. 12V PSU is Ideal. No heatsink required for IC. By default, the design only displays the bare circuit in "board view", so just enable the necessary layers for component values and pinouts.
Uploaded by Bradlin Basson from South Africa

A small 2W Bridged Channel audio amplifier using TDA2822 IC. Including volume control. 12V PSU is Ideal. No heatsink required for IC. By default, the design only displays the bare circuit in "board view", so just enable the necessary layers for component values and pinouts.
Uploaded by Bradlin Basson from South Africa

A small 20W Bridged Channel audio amplifier using TDA2005 IC. Including volume control. 12V PSU is Ideal. Heatsink required for IC. By defualt, the design only displays the bare circuit in "board view", so just enable the necessary layers for component values and pinouts.
Uploaded by Bradlin Basson from South Africa

A small 10W Single Channel audio amplifier using TDA2003 IC. Including volume control. 12V PSU is Ideal. Heatsink required for IC. By defualt, the design only displays the bare circuit in "board view", so just enable the necessary layers for component values and pinouts.
Uploaded by Bradlin Basson from South Africa

A variable mini test bench power supply unit (PSU) for voltages : 0-14V and Current : 0-800mA. As well as offering constant V or I option. Circuit dimensions : 64mm x 95mm
Uploaded by Bradlin Basson from South Africa

this is a well known radio interface programmer circuit, for Motorola radios. for details, please read the pdf file. thank you.
Uploaded by Bogdan Alexandru Rusu from Romania

Atmel AVR ISP programmer. Parallel 25-pin port. The schematic can be found here: http://www.lancos.com/prog.html#avrisp
Uploaded by Pascalau Gavriil

2x125W-Mittel-Hoch-Ton-Doppel-Endstufe jeweils mit eigenem Regelnetzteil (mit r

2x125W-Tiefton-Doppel-Endstufe jeweils mit eigenem Regelnetzteil (mit r

Dies ist ein Dreiklang T

Kabeltreiber- (f

Androino-2009: Another Arduino Clone. - Single Layer - No smds (except FT232RL) - Easy to produce
Uploaded by Bernhard Redemann

SSOP28 to DIL 28-6 Adapter Platine
Uploaded by Dr. F. Borkenhagen

This is the CMoy Beginners Board based on the Chu Moy Pocket Headphone Amplifier. It is so simple to build, yet makes ALL music sound much, much better! Costs less than $10 USD to build! The first time I listened with this amp, I couldn't believe my ears!
Uploaded by Tony Cureington from Austin, Texas - USA

This project is a volt and amper meter made special for panel use, this device is working with ICL7107 where is a A/D with LED seven segment driver and plus it have and one simply power supply
Uploaded by Sam Tzam

ODB2 adapter on PIC18F2455
Uploaded by Alex Sidorenko from www.obddiag.net

RS232 nach TTL, zum Anschluss und Datenaustausch zwischen PC und Mikrocontroller. Sehr klein, 44x44mm Singlelayer
Uploaded by Bernhard Redemann

noch ein ICD2 fuer PICs (MICROCHIP), sehr kompakt (SMD) mit USB-Anschluss, inkl. SW (*.hex) fuer beide Prozessoren. Dank der Inspiration von WWW.PWM.PE.KR
Uploaded by G. Tkach from ----

This board layout is for a guitar effects hum free pedalboard power supply. It's designed for 8 +9v regulated and filtered outputs. Board dims are 2"W X 4"L. Based on the Spyder design found here: http://www.geofex.com/Article_Folders/Spyder/spyder.htm
Uploaded by Larry Chomycz from Woodridge IL

Weihnachtsstern mit 128 LEDs, Tiny26. Gr

Schaltplan der MikroSPS von www.microsps.com. Er soll helfen hardwaremaessige Projekte zu erleichtern, bzw. Aenderungen schneller umzusetzen. Detailierte Beschreibung unter www.microsps.com
Uploaded by Michael Hamacher from RWTH Aachen

A small power modulator for suply LASER diode for long live function.
Uploaded by Bratu Florian from GACW

a Low-Cost AVR ATTINY2313 trainingsbord MODUL1
Uploaded by Dobbelaere William from Philips Brugge

this is a revised .brd file of a lm386 audio amp.the parts list can be found here: http://members.shaw.ca/roma/ten.html
Uploaded by G. H. Lunday from home

A very easy to build electronic key for morse code
Uploaded by Bratu Florian from GACW

Audio Power Amp. pop & click free speaker protection circuit (eliminates noise during turn-on and turn-off).
Uploaded by Arpad Attila Bakos from HUNGARY

C-Control Unit-2 Application Schematic and Board. Front-Keyboard follows. C-Control Unit-2 Applikations Schaltplan und Platine. Front-Keyboard folgt.
Uploaded by Michael Hamacher from RWTH Aachen

Audio-Leistungsverst

Two logical probes with pulse detection, which were published at http://www.uoguelph.ca/~antoon/
Uploaded by Daniel Jos

Eine Alarmanlage mit AVR, HexCode und LCD-Display, einseitiges Layout
Uploaded by Michael Hamacher from RWTH - Aachen

DIL32-Adapter mit R8/C13. Alle Signale werden auf Pin's gefuehrt
Uploaded by Michael Hamacher from RWTH Aachen - Institut f

150W Mosfet audio amplifier, base from Elektor Crescendo (1982), used 2SK1058/2SJ162 Hitachi Lateral Mosfets.
Uploaded by samidi telo from mahakam weave

Sinus-Funktions-Generator f

fiber optic multiplex
Uploaded by kim hwan seop from yongjin electronics co.

energy saving led flash supply DC 3.3V - 10V; at 3.6V flash frequency 0,3 Hz, 30uA 9V 1Hz, 300uA.
Uploaded by Darius Vainilavicius from student from KTU

This archive contains Eagle schematic and board files for a guitar overdrive pedal.
Uploaded by Paul C. Frederick from Home

This is a project tageted on ZigBee and DSRC communication. It is currently using a Atmel AVR CPU (ATmega88) and a Freescale MC1319x (MC13191, MC13192 or MC13193) for communication with 802.15.4 on the 2.4GHz free frequency. Project homepage http://www.anteeo.se/zigbee.php
Uploaded by Johan Englund from www.anteeo.se

HDD-Lauflicht
Uploaded by Schmidt Bernhard

These examples show how to make processor header boards using the Atmel_Prototype_Header library. Includes At91Sam7S64-256 and AtMega16
Uploaded by William Arden from Arden R&D

Microchip MPLAB Compatible In-Circuit-Debugger 2
Uploaded by Thushianthan from 247, Kathiresu Road, Vavuniya, Sri Lanka

Debugger for MICROCHIP microcontroler
Uploaded by Eric BARGE

Popular LC meter updated with freq meter with ATM89c2051 (origin construction of US Marshall Emm). High precision and stability!!!
Uploaded by Frankie Kovarik from High school IT and electronics

incubator circuit diagram
Uploaded by Hanson

Steuerplatine f

USBSeriell(TTL) converter modul based on FT232BM from FTDI (www.ftdichip.com). Designed for easy self-etching this project only need a single layer board. Boardfile, schematic, partlist and short description is included in zip-file. Very usefull to easily hook up small microcontrollers with UARTs to usb. No need for driver programming when using virtual-COM-port drivers freely available from FTDI.
Uploaded by Lutz Lisseck from student

Dies ist ein Dreiklang-T

20 bit 96 kHz Stereo Digital Equalizer with Microphone Preamp
Uploaded by Pet

Drehfeldanzeiger Zeigt die Richtung des Drehfeldes und das Vorhandensein der 3 Phasen an.
Uploaded by Rainer Prell from privat

Blumendurstmelder. Zeigt mit LED an, wenn Blumenerde trocken wird
Uploaded by Rainer Prell from privat

UKW Pr

A very simple cw filter for using with broadcast receiver for morse code reception in better condittions.
Uploaded by Bratu Florian from GACW

Clavier code pour gache electrique ou autre. Uploaded by Christian RICQUE (cr at REMOVErecord-systemes dot com) from RECORD SYSTEMES S.A.

Diese Platine codiert Dezimalsignale zu 7 Segment signalen um
Uploaded by Martin Wende from nirgends

70W...100W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY Supply Voltage +/- 38Vmax Size: 36,4KB
Uploaded by Krzysztof Pietraszynski

Fine Adjustment for the travel of a sailwinch (radio controlled model) or other type of servo.
Uploaded by Clozeau Olivier from France

PIC18F452 and PIC16F877 Serial Programmer. (Used with suitable BootLoader)
Uploaded by Thushianthan from University of Peradeniya, Sri Lanka.

Power ampli 18w.Power 6-18 VDC
Uploaded by Agnort from Ho Chi Minh

Stand-Alone-MP3-Player Hardware and software developed by Thomas Pototschnig (1999-2000) Features: - suitable for car - has a 240*64 pixel Graphic-Text-Display - is capable of adressing IDE harddisks up to 128Gb - FAT32 + Windows long filenames - Tone control (vol, bass, treble) - sorting of the directory - filesearch through the entire harddisk - Playlist (max. 500 entries) - Shuffle, Repeat function - ID3, Bitrate, Frequency display - importing of playlists from winamp ZIP contains: - board and schematic of the project - ASM source code + binary of the player software - Experimentel C software for a higher developed player software My homepage can be found at www.oxed.de
Uploaded by Thomas Pototschnig

Schaltung um Conrad DCF77 Modul am PC zu betreiben, mit Kontroll-LED (Spannung & Signal)
Uploaded by Levent Sarikaya

AVR 8515 Eval-Board GPL2
Uploaded by Alexander Wagner

Audio VU meter 12+1 LED +memory with AT90S1200
Uploaded by zoran from Serbia

ISP programmer for Atmel AVR It's the circuit that can be found at http://www.lancos.com/prog.html
Uploaded by Kristof Thewissen from KHLim

Dies ist eine RCT(Real-Time-Clock) mit dem DS1302 und St

OksiD DMX 3/1: A parrallel port DMX 512 (a professional lighting control protocol) interface. 3 output universes. One input universe. Fully buffered. Uses 3 PIC 18F452. More info at : http://www.oksid.ch/spp2dmx/
Uploaded by Jean-Marc Lienher from O'ksi'D Software

This is a very simple magnetic field measurer, with a few components. Enjoy it!!!
Uploaded by Vince from Italy

BANDIDO II uMax Metal detector
Uploaded by Eugenij from hobbyst

Ein 32-Bit

Ein Codescloss in mini version
Uploaded by Philipp Milich

Lattice Semicondutor Evaluation Boards for isp1016, 2032, ispGDS14 and Daisy Chain Programming Cable Board
Uploaded by Arto Kyyhkynen from Helsinki Finland

battery monitor and protection.
Uploaded by Rusu Bogdan from Romania

A simple 10 band audio spectrum analyzer
Uploaded by Nguyen Kim Huy from Vietnam

Evaluationboard for the Atmel Microcontroller Series (A)T89C51xx and AT89Sxx. Refer to the attached file "EvaluationBoard AT89xx.doc" for a detailed description. Unzip the uploaded file using Winzip 6.3 to obtain all the provided informations about the EvaluationBoard. RV. 17.8.2003
Uploaded by Reinhard Vogg

Dieses Ger

LED Flasher
Uploaded by Bogdan Rusu from Romania

small signal and small noise amplifier. for magnetic coil pick-up.
Uploaded by bogdan rusu from romania

auto light switch for halogen lamp. also with lamp protection, slow on / off switching.
Uploaded by bogdan rusu from romania

this is an IR alarm. I sugest that you dont use it to protect something inportant becose it is not a profesional desing
Uploaded by Ivan

High precision amp & comparator for low budget experimenters . I uploaded this circuit last december but my email address was the wrong one ...SO VERY SORRY many more circuits to come . Gilles D

Adapter von DB-25 auf Klemmenleiste und durchgeschliffen auf Pfostenstecker f

PWM L

Floating Dual Suplly, for use in laboratory.
Uploaded by Ismar Russano from CBPF-CAT - RJ (Brazil)

battery charger with auto-stop when the voltage battery reach preset value.
Uploaded by Bogdan Rusu from S.C.AXEL TELECOM CLUJ S.R.L.

Design error correction of the file Filters.zip. Explanation is in the file notes.doc.
Uploaded by Abidin Yildirim from University of Alabama-Vision Sciense Research Center

A filter and signal amplifier collection. Contains Sellen-key LPF, T-NOTCH, Notch with UAF42 and available as library module.
Uploaded by Abidin Yildirim from University of Alabama-Vision Science Research Center

Converts slow pulse trains like RPM of rotating objects and Heart Rate Pulses into Frequency output. This Frequency output can be fed to a counter to directly give the required output.
Uploaded by Jayaraman Kiruthi Vasan from TRIVITRON

This project show how to make an SMS alarm system with a GSM phone. You can find more info in this website http://avisadorgsm.iespana.es/
Uploaded by Luis from Spain

Pic Flash series programmer (16F87x)
Uploaded by Denny Catacora from Peru

A 20W halogen lamp wireless SLC
Uploaded by Alex Tsekenis from Greece#1

Ein Ausschaltverz

A sinple time based switch(0-5min.)
Uploaded by Alex from Home

this is an active filter, high pass filter; economical with only one op amp.cutt-off freq = 350 Hz. you have here the circuit itself, has been scanned.
Uploaded by bogdan rusu from S.C.Axel Telecom Cluj S.R.L. - ROMANIA

schematic and board of a triangle-generator/puls with-modulator 50kHz.
Uploaded by Karl K

here you have : high pass filter light switch
Uploaded by Bogdan Rusu from Romania (my country)

Uploaded by

Equalizer...
Uploaded by Nguyen Ngoc Mai Khanh from DHBK TPHCM_ D_DT97

EPROM+EEPROM+PIC PROGRAMMATOR ha-ha
Uploaded by kuzia from kuzia

Blinkendes Herz (16LED) zum verwenden als spezielles Namesschild f

sequencial LED flasher
Uploaded by Lawrence from Canada

Umpoler - Dient zur Drehrichtungs

9V nach 12V Spannungswandler
Uploaded by Tilo Wetzel

Kleiner Netztester zur

Joystickadapter-digitales Gamepad an PC Weiter Infos zu der Schaltung findet Ihr auf meiner Website. http://www.dresden.nacamar.de/~wetzel
Uploaded by Tilo Wetzel

Fertiges Board zum Test der Funktion des Ultra DMA Standarts von Controller- Chips

Einstellbarer Spannungsregler 0-30V 1,5A mit LM 317
Uploaded by Dirk Bendig