Top Circuits Page 93
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The interaction design for the singing pig was to have a different song start playing when a different wig is placed on the pig. The pig needed to stand by itself without being connected to anything else and the wigs needed to look like nothing out of the....
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A blog about new developments in 3D printing, RepRap and Open Hardware A blog about new developments in 3D printing, RepRap and Open Hardware...
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Following last year`s rediscovery of radio controlled flight, I`ve recently become enamored with the hacking/mod potential of the downright bargain priced 9-channel FlySky FS-TH9X transmitter (also sold as Turnigy/Eurgle etc). The original 2. 4GHz RF module....
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While cleaning up my computer files I stumbled over this schematic, which I used in the early stage of the USB LED Matrix development, and I thought it might be usefull to others. ..
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This project illustrates how to use an ATTiny microcontroller and an RGB LED to create a coloured light that cyles continuously through random colours, but changes colour dramatically at the press of a switch. Why My kids had this $2 novelty pen that did....
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Multiplexed displays are electronic displays where the entire display is not driven at one time. Instead, sub-units of the display (typically, rows or columns for a dot matrix display or individual characters for a character orientated display, occasionally....
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Hi, I bought two small servo motors last month. I was thinking what I can do with this two servo, since it is only two in number. Then I asked this to my friend Achu Wilson and he suggested me to try a four legged two servo walker and he shown a youtube....
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While laying in bed and watching movies on my laptop, I used to think if there is a remote control, it will be easy to pause, play, fwd, rev, adjust volume, play next etc etc without going near to the system. Then I planned to make a remote control. I don`t....
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Wolfram SystemModeler ships with model libraries for a large selection of domains such as electronics, mechanics, and biochemistry. Now I am pleased to present a new library in the family, the SystemDynamics library by FranG§ois E. Cellier and Stefan....
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So this is a bit of a continuation on my 555 timer based PWM controllers, but now using microcontrollers and MOSFETs instead of 555 ICs and transistors. I made 2 versions, one with switches for speeding up and down and the other with a potentiometer like the....
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DMRC`s uniqueness lies in how it has managed soft issues related to the general public affected by it. To ease out traffic snarls and general chaos around construction sites on main roads, DMRC deployed special personnel to assist Delhi Police. Cars....
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Posts from PCB Schematic Design with DxDesigner tagged DxDesigner...
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We chose to build a nightlight combined with a wake-up alarm. Our nightlight features not one, not two, not three, not four, not five, but SIX ” yes, SIX! ” LEDs that turn on when a photosensor detects a decreased amount of ambient light. Not only that, but....
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Habit-acquisition system. Tag physical objects like dumbells, medicine bottles, etc with RF tags or microcontrollers, and use them to detect and log users` interactions with these objects. Virtual plants and creatures that simulate the health of real things,....
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Prototype 2 uses the same base to control different elements. This time we have added a button to make the tone play only when it is pressed, as well as a rotary potentiometer for volume control. /* ADXL3xx Reads an Analog Devices ADXL3xx accelerometer and....
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This week we were in a Southern mood in anticipation of Spring Break, so we initially decided to build a LassoBot. This robot throws a lasso in a circle until an object in the lasso`s path is grabbed on to. At that point, LassoBot reels itself closer to the....
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Camera operation failed on Nokia 2630 has similar solution with the Nokia 2600c because they have the same board. The problem usually caused by the hardware damaged or broken line on the circuit. Here we have some pictures related to Nokia 2630 camera....
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MMC corrupt can be caused by damaged MMC or damaged memory card driver. On the Nokia 7610, there is a memory card regulator, it is an integrated circuit and the location is near the memory card connector. Nokia 7610 memory card corrupt can be caused by....
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Nokia 6500 camera problem like camera operation failed or camera blank, can be solved by doing a little trick. The pictures below relating to Nokia 6500 slide camera problem, try to make a jumper like shown by the picture. The picture also show you the IC....
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Display lights problem on Nokia N73 can be caused by several reasons, for example broken path on the display circuit, damaged the display driver, and others. Here, mobile repair guide provide some pictures relating to Nokia N73 display problem, especially on....
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The schematics on this page are provided strictly for educational purposes. If anyone intends to use these designs for profit, they are required by law to obtain permission from the legal owner(s) of the design and comply with any and all laws pertaining to....
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Our focus is to create place of art, audio, and video with a vintage electronics theme. The vacuum tube is the heart and soul of any vintage radio or electronic device. Today the use of the vacuum tube has been vertualy wiped out to the edge of extinction.....
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This project is a GPS based clock, which also displays the present date, automatically compensates for daylight savings time, displays current speed, and maximum speed, along with your present heading in degrees with respect to true north. The original....
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BEAMSonics is a clever little circuit designed by Wilf Rigter. It`s central function is to filter incoming sounds and count high pitched pulses, whistles, beeps etc. When it hears a certain number of beeps it will respond with a noise of its own. If left on....
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Working on the brightness problem, I know that the 4017 design did not work well because there was no way to turn off the sign while updating the shift registers. As a result I went back to having the Arduino directly drive the TIP120 drivers. Another....
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This was a final project for an optics class EE 134 at Stanford. It was an open-ended project to make a fully functioning laser microphone the class was geared to demonstrate optics and photonics in the lab, not necessarily electrical schematics. There are....
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Remove the 6 mm screw holding on the lower rear fairing cover. This is the black plastic piece the spark plug protectors are attached to. Do not remove the lower rear fairing covers, only the machine screw. Fabricate "L" brackets from the mending plates to....
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Micropower and low-voltage op amps allow you to build high-performance analog-signal processors that require no batteries or wall transformers. Instead, you can use a capacitor as a power source. The circuit in Figure 1 shows an analog mixer designed for....
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Bolometer systems would be simplified considerably if all components could be made photolithographically on a single substrate. We are developing a design for a single-substrate array with several frequency bands that incorporates a planar antenna for....
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Clock signals are the heartbeats of digital systems. Hence, the stability of clock signals is highly important. Ideally, clock signals should have minimum rise and fall times, specified duty cycles, and zero skew. In reality, clock signals have nonzero skews....
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The first question we would like to answer is: what do we mean nowadays for video processing In the past, more or less till the end of the 80`s there where two distinct worlds: an analog TV world and a digital computer world. All TV processing from the....
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A meter is any device built to accurately detect and display an electrical quantity in a form readable by a human being. Usually this "readable form" is visual: motion of a pointer on a scale, a series of lights arranged to form a "bargraph, " or some sort....
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An often neglected area of study in modern electronics is that of tubes, more precisely known as vacuum tubes or electron tubes. Almost completely overshadowed by semiconductor, or "solid-state" components in most modern applications, tube technology once....
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Briefly, the circuit works as follows; the clock signal drives 4 D-flipflops in the control section which store the on/off state of each of the current directions for the two stepper motor coils. The flipflops comprise a FSM (finite state machine) which....
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Tetsuo Kogawa`s circuit is pretty well documented, but not in conventional schematic form. I decided to enter it into LTSpice to see what it could make of it, and decided to go ahead and put the schematic online here, with perhaps a few comments: I`ve set....
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I hadn`t worked through the biasing calculations for collector feedback common emitter amplifiers before, so I thought I`d do that for the simple one transistor NPN preamp that Dino built as his weeklyhack. But even before I got to it, I was confused by....
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For some reason, I`m getting back into the universe of QRSS, or very slow Morse code. I goofed around with this for a while, writing some software to record audio and produce the necessary FFTs so that you can read Morse from these incredibly long Morse....
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I havebeen researching a project which will help me with my understanding of electronics, networking, and programming. I decided to build an online thermometer which could be used in applications that need temperature monitoring. I currently work in a lab....
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For mad scientists only ! Portable Jacobs Ladder circuit. A very unique project...
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This project implements a network connected water level sensor, measuring the level in the sump pit of my house. It`s connected to the home network and reports the water level by broadcasting UDP packets so that any computer can receive it and take action,....
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A lot of my projects involve 120VAC, switching relatively slowly. Most people use mechanical relays in that situation, but I don`t like them; I try to avoid moving parts whenever possible. Up to this point, I`ve always used solid state relays. They work....
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We know that on the market there are plenty of devices that replace normal wall switches and let you adjust the luminosity of a bulb. But if you want to make an "intelligent" home or a more complicated device to adjust the power of a light bulb....
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AVR ISP interface (optional but handy if you don`t like the boot loader, are too poor for a JTAG or AVR studio just crashed and disabled the on chip debugging ;) ) The following is the up to date bill of materials for the latest version of the PCB. The parts....
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You are here: Btechzone | Job Updates | JNTU Updates » Basics, Electronics, Projects » ECE Mini & Major Project on Vehicle Tracking System using GPS and GSM modem Warning: Missing argument 2 for wpdb::prepare(), called in....
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Wouldn`t be cool sitting at your favorite coffee shop with this phone on the table, and while chatting with your friends the Ericofon rings and it is a call for you Or picking it up, hearing a dial tone, cranking up the rotary dial and dialing home to say....
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Schematic Diagramis a layout of symbols and and connection of every electronic components circuit where serve as a guide on how the circuit function or work. Learn how to read it. At first you might think that it is hard to do so, You are not going to be an....
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am freeborn Emmanuel, am into inverter, battery charger and automatic change over for generator and stabilizer designing. i do design locally made inverter for house and office use and i do install solar panel with inverter, i do design solar charge....
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Some links and info on remotely using a DSLR, mainly arduino-based..
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This circuit is capable of amplifying the output from a 150-ohm dynamic microphone to line level in a single stage, courtesy of a little thing called an instrumentation amplifier. They`re like op-amps but with settable gain and much better common-mode....
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This circuit is shows how a low drift preamplifier can be added to improve the measurement resolution of a thermocouple. The preamp is powered from the reference regulator, and bridge feedback is used to bias the preamp input within its common mode range.....
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Browse » home » alarm » circuit » explanation » latest » schematic » siren » wailing » with » latest Wailing Alarm Siren circuit Schematic with explanation *The Loudspeaker LS and the resistor marked Rx should be together 75 ohms. If you have a standard....
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C141C datasheet, .Selling leads from all over the world, ChinaICMart is the world`s biggest IC trading marketplace on the internet. We offer finest suppliers for C141C, you can also download the datasheet for C141C..
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Atmel`s ATtiny1634 8-Bit AVR ® Microcontroller is based on the AVR ® enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATtiny1634 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to....
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Cal-(IT)2 is developing several generations of general broad application radio/networking test platforms for wireless research and development. CalRadio I is the first generation. It provides a simple, low-cost platform for 802. 11b development from the MAC....
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Amplifer with IC number TDA7293 for process sound system. This amplifer was have the input for a radio, TV, stereo or other line level device. It also has a phono input for a record player, guitar, microphone or other un-amplified source. With the addition....
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How do you make a 1950 Studebaker even cooler? By installing an iPod Nano in the dashboard, of course! The folks over at MAYA Design hacked their way to a touch-controlled sound system with this project they`ve dubbed the ""Nano-Baker"" (or ""Stude-iPod"")....
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This audio amplifier designed uses two LM3886 per channel, in parallel circuit, based on the PA100 parallel amplifier detailed in National Semiconductors application note - AN1192. This amplifier can deliver about 50W into a 8-ohm speaker and 100W into a....
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Let`s construct a low-power FM transmitter using surface-mount devices (SMD) that will be received with a standard FM radio. Soldering surface mounted devices is not so hard and actually is quite easy. There are many designs for small FM transmitters but....
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The cool thing about the 4017 is that you can add other 4017s and make the sequence longer (of course with more discrete parts): I saw the schematic youG ‚¬ re talking about. Oddly, this was one of the only 4017 cascading schematics I could find. I found....
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By no means is this a necessary addition to the benjolin but its one I`ve had some fun playing with and decided to add to my Modular Benjolin design. This circuit is a dual Attack/Release envelope generator. The AR is especially useful when combined with the....
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The user selects a game to play and presses the power button on the Nintendo. 1 or 2 player games may be selected. Once the game has loaded, using the game controller allows for standard game play. As long as the viewer only touches the joystick and buttons....
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White Light is an interactive sound and light installation. It is part sculpture, part musical instrument and part social exercise. White Light invites viewers to become part of a complex sound and light display by manipulating the controls on one of 3....
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Thanks for putting these schematics up, the different circuits look like they`ll be useful for many projects. The CV section alone, is vastly usable. Brilliant! I am in the very beginning stages of making a mighty benjolin PCB with Rob himself. I`m crossing....