555 break circuit jobs:
| Project Name | Description | Type | Bids | Avg (USD) | Skill Required | Started | Ends | |
|---|---|---|---|---|---|---|---|---|
| ... A DIAGRAM, I WANT A PHYSICAL ALARM. (1) Description of operation: The ... to be a normally closed circuit, which would alarm if the wire ... available and cheap IC like a 555 IC or a transistor like ... advance for your help. Using a 555 ic is not written in ... | Fixed | 21 | $340 | Electrical Engineering, Electronics, Engineering, Microcontroller, Test Automation | May 30, 2010 | - | ||
| ... available and cheap IC like a 555 IC. (b) It must have a loud alarm, 132 decibel ... battery. (d) The box containing the alarm must be as small as possible ... very low battery drain while circuit is in alarm-off mode (i) ... | Fixed | 19 | $321 | Electrical Engineering, Electronics, Engineering, Manufacturing Design, Mechatronics | Mar 10, 2010 | - | ||
| We need a circuit build and designed to time stamp the break in a circuit. The circuit is essentially an electronic time card. ... out perforated squares made of a simple circuit of conductive ink. The ... the card will record the break in the circuit with a date ... | Fixed | 13 | $2208 | Electrical Engineering, Electronics, Engineering, Manufacturing, Microcontroller | Apr 17, 2012 | - | ||
| Basic electronic circuit using off-the-shelf electronic components such as ... basic IC such as a 555 timer. Input voltage = 12VDC Outputs ... of finished result: Once the circuit is turned on the relay ... on until power to the circuit is removed. This job is ... | Fixed | 20 | $102 | Electronics | Jan 19, 2012 | - | ||
| ... (60w) bulbs in a similar fasion to police car front lights. I think maybe 555 timer is the best way, but i need this interfacing with 12v (60+Watt) circuit with us of mosfet or similar. Would also like to include function so ... | Fixed | 17 | $85 | Electronics | Feb 7, 2008 | - | ||
| ... Unit with. The engineer would design the circuit and provide a professionally made digital schematic drawing of the circuit along with all the electronics components ... /names/indexes. We will assemble the circuit at our location. The engineer does ... | Fixed | 22 | $390 | Electrical Engineering, Electronics, Engineering | Jan 18, 2012 | - | ||
| ... (and possibly provide prototype) of a circuit to detect low water level and ... is intrinsically safe against electrocuting swimmers. Circuit would include an overfill lockout that ... sensed for more than 20 minutes. Circuit should include LEDs to inform user ... | Fixed | 23 | $197 | Electrical Engineering, Electronics, PCB Layout | Apr 17, 2012 | - | ||
| I need help in miniaturizing a circuit schematic that I have (involves a microcontroller ... pill with half dedicated to a miniature circuit (with a microcontroller) and the other ... advice on how to take my existing circuit diagram and find components and create ... | Fixed | 8 | $635 | Electrical Engineering, Engineering, Microcontroller, PCB Layout | Apr 28, 2012 | - | ||
| ... generator easy made voice changer the pcb layout must be easily read and easy to follow. (almost beginner stuff in some casses) I can break them up into individual auctions if needed. i am also open for ideas in related areas or similar designs. | Fixed | 14 | Electrical Engineering, Electronics, Microcontroller, PCB Layout | Dec 27, 2010 | - | |||
| Fixed | Dec 7, 2007 | - | ||||||
| I need a circuit board made (project board not PCB), 24Vac going to x2 metal probes (different lengths). Live ... this is a water level sensor - hence the 3 different lengths. When a circuit is made once water bridges a live probe and neutral I want the ... | Fixed | 9 | $172 | Electronics | May 12, 2012 | - | ||
| We are after a Circuit board to be designed for our new product. It will include Memory card readers and USB and Firewire and possibly Power. A Confidential agreement will have to be signed. It should be to hard to someone that knows what they ... | Fixed | 3 | $400 | Product Design | May 14, 2012 | - | ||
| Fixed | Jan 30, 2008 | - | ||||||
| Fixed | Jan 19, 2012 | - | ||||||
| ... • Power light • Activation light • Alarm light • Transmitter • Receiver The circuit should perform as follows. When the unit ... will also emit an audible and visual alarm. The circuit should also have the following attributes ... | Fixed | 21 | Electronics, Engineering | Jul 15, 2008 | - | |||
| Fixed | Sep 29, 2008 | - | ||||||
| Fixed | Jan 26, 2009 | - | ||||||
| Fixed | Nov 2, 2010 | - | ||||||
| Fixed | Feb 22, 2012 | - | ||||||
| ... looking for someone to design a circuit for me that will consist of the following. Thermistor circuit to detect moving air for one ... switch has signled to stop. This circuit will drive a motor of 12vdc 3-5 amp. Circuit should be 12vdc. I will require ... | Fixed | 5 | Electronics | Mar 27, 2006 | - | |||
| Simple LED watch circuit powered by a 3v button cell battery ( ... -5 seconds). In short a very standard circuit. This is for a prototype so the ... but a key feature is that the circuit can be bend i.e build as a flexible circuit. Also it needs to be thin so ... | Fixed | 7 | $129 | Electronics | Nov 8, 2007 | - | ||
| ... supply with a battery charge and supply circuit to provide power when the input ... a couple of LED indicators. The battery circuit must disconnect the battery at a ... and cheap device. Deliverables are: 1. Circuit design 2. Gerber, solder resist, ... | Fixed | 13 | Electronics | May 23, 2008 | - | |||
| ... high signal from a TTL compat. circuit). It must have non-volatile ... count is not lost when the circuit is powered down), and a reset button. I just need the circuit -- I do not need a ... . I will release the escrow after the circuit is successfully tested. ... | Fixed | 17 | Electronics | May 12, 2009 | - | |||
| I need a game about the Spring Break Europe 2010 in Rovinj, Croatia (http://www.springbreakeurope.at/2010/index.php?lan=en&show=). It should consist of a few mini games, like picking up people on the party train, dancing to the music (http://www. ... | Fixed | 2 | $250 | 3D Rendering, Caricature & Cartoons, Flash, Game Design, Graphic Design | Mar 15, 2010 | - | ||
| ... the use of an off-the-shelf circuit board. Essentially, the board is a relay ... to the use of two diodes on this circuit board. On the schematic, they are ... If you need further reference, the entire circuit is here: http://wepersonalizegifts.com/031510/ ... | Fixed | 28 | Electrical Engineering, Electronics | Mar 15, 2010 | - | |||
| ... a layout of a miniature print circuit board that credit / debit cards ... use my mini123 card reader print circuit board for it? And how/ ... it on the Verifone V670 print circuit board? I'm from The ... a picture of the print circuit board form the Verifone V670. ... | Fixed | 0 | Manufacturing | May 29, 2011 | - | |||
| ... s and one thousand’s. The circuit will require two displays (two ... 4 7-segment displays). The circuit will require eight 7-segment ... an LED to show wether circuit is on or off. I ... the computer program ‘Livewire circuit simulator’. If this is not ... | Fixed | 31 | $153 | Electrical Engineering, Electronics | Feb 23, 2012 | - | ||
| Fixed | Oct 14, 2007 | - | ||||||
| ... problem in word document regarding a traffic light design using 555 timer. Must show multisim schematic design, component values, and ... ones found in the PDF files. Attached PDF file regarding 555 timers. Think simple! I am a trusted and reliable ... | Fixed | 1 | $30 | Electronics, Engineering | Dec 8, 2007 | - | ||
| ... who is available to assist you in getting started. Three of the eight circuit models are to be completed* by February 1st (roughly one circuit per month). * A circuit is complete when it meets and/or exceeds the level ... | Fixed | 34 | $3778 | 3D Rendering, Automotive, Game Design, Sports | Nov 5, 2009 | - | ||
| ... or decreased (say with a potentiometer). The circuit will be used for legacy video ... /vectrex/vectrex-manual.pdf Essentially the circuit will be attached to the mainboard of ... scan monitor will go to this circuit and transfer output to scaleable laser. | Fixed | 6 | $475 | Electrical Engineering, Electronics, PCB Layout | Feb 13, 2010 | - | ||
| ... and prototype for a RF circuit, wireless with one receptor and ... receptor will active an audible alarm that may only desactivated pushing ... range, this must active an alarm that is only resetted or ... in very small space for circuit and battery. The project must ... | Fixed | 16 | $430 | Electrical Engineering, Electronics, Microcontroller | Oct 23, 2010 | - | ||
| We are seeking a person who understands the circuit of a Non-Contact Voltage Detector (NCVD) circuit used in devices such as the Fluke 1AC-A, ... ). This project involves design of a similar circuit with a few modifications. All work will ... | Fixed | 11 | $3764 | Electrical Engineering, Electronics, PCB Layout | Mar 1, 2011 | - | ||
| ... the UK and I need a simple electronics circuit built. It involves a small 6v DC motor ... a light sensor (LDR), I have a simple circuit designed that already works but need it ... time to build them myself I want the circuit built and posted to me in the UK ... | Fixed | 12 | $187 | Electronics | Mar 4, 2011 | - | ||
| I have a job for small circuit design. The circuit will be connected 2 danfos sensor, 2 heat sensor and 2 diesel engine sensor, the circuit microprocessor will read them and start and stop engines. There is a scenario ... | Fixed | 19 | $427 | Electronics, Microcontroller | Jun 30, 2011 | - | ||
| I have a job for small circuit design. The circuit will be connected 2 danfos sensor, 2 heat sensor and 2 diesel engine sensor, the circuit microprocessor will read them and start and stop engines. There is a scenario ... | Fixed | 57 | $117 | Electrical Engineering, Electronics, Embedded Software, Mechatronics, Microcontroller | Jun 30, 2011 | - | ||
| This project is for electronic circuit design and PCB layout. I ... use it to operate the circuit that I need. I need ... volt electric solenoid valve. The circuit must have a way to ... the same if desired The circuit must have multiple isolated inputs ... | Fixed | 22 | $24 | Electronics, PCB Layout | Nov 20, 2011 | - | ||
| Design simple 24v control circuit Need to use automotive parts eg bosch relays ... , design, layout and workshop drawings The circuit includes solar, battery bank 6 X 200Ah ... ok to use commerciably available solar charge controllers. Circuit needs to be robust | Fixed | 11 | Electrical Engineering | Jan 9, 2012 | - | |||
| Fixed | Aug 28, 2007 | - | ||||||
| I need a simple circuit diagram with component list for a 30 ... extra large LED's so the circuit design would need to take this ... consideration. I plan to feed this circuit with a "line level& ... stereo audio input. I need the circuit to operate on 12VDC if ... | Fixed | 4 | $85 | Electronics | Aug 15, 2008 | - | ||
| ... of a 3 inch x 3 inch circuit board with test pads. There are no ... and .eps design files for importing into circuit design software. Deliverables will be Gerber files ... very easy design project for the experienced circuit layout designer. I am assuming the ... | Fixed | 16 | $46 | PCB Layout | Dec 12, 2010 | - | ||
| ... of a 3 inch x 3 inch circuit board with test pads. There are only ... and .eps design files for importing into circuit design software. Deliverables will be Gerber ... very easy design project for the experienced circuit layout designer. I am assuming the ... | Fixed | 12 | $63 | PCB Layout | Feb 17, 2011 | - | ||
| Fixed | Jul 5, 2011 | - | ||||||
| ... small electronics project. I have a circuit and gerber pcb design but ... , before it is fabricated The circuit is pretty simple and is ... are able to check this circuit on a breadboard, or manufacture ... . I can show you the circuit over PM if any questions ... | Fixed | 14 | $146 | Electrical Engineering, Electronics, Microcontroller, PCB Layout | Mar 5, 2012 | - | ||
| Need someone to solve a simple circuit gain lab problem for me. Believe ... 's actually for school. View the attached circuit: Calculate the gain (small-signal) with ... (2 Parts) Can probably solve it by reading any electronics circuit book. URGENT!!! | Fixed | 6 | $43 | Electronics, Engineering | Nov 26, 2006 | - | ||
| I am looking for someone to design and build a prototype of an Integrated Circuit that will randomly dim and brighten a 110volt light source. Circuit must be able to be in-line with the 110volt light line ... | Fixed | 8 | Electronics | Jan 2, 2007 | - | |||
| Dear bidders, the project is simple and straightforward. i need a circuit for position sensitive detectors using photo-transistors. the circuit will have support to usb connection hence use IC's that provide ... | Fixed | 2 | Electronics | Aug 23, 2007 | - | |||
| ... a production site which can make prototypes of circuit boards. In a second step more ... Attached is a sample project: A small circuit board for LCD-Display connected to ... to produce 10 prototypes. - Please bid for the production of this 10 circuit boards. | Fixed | 7 | $161 | Electronics | Oct 6, 2007 | - | ||
| need someone expert in electronic circuit simulation to do simulation to the attached circuit. preferring P-Spice program the studen version. | Fixed | 8 | Electronics, Engineering | Nov 25, 2007 | - | |||
| Need professional circuit analysis for a number of audio and video circuits. Comments must be added on each circuit diagram about how it works , its ... with both analog and digital video. Each circuit needs about 10-12 lines of comprehensive ... | Fixed | 16 | $894 | Electronics, Engineering | Feb 25, 2008 | - |
Showing 1 to 50 of 5941 entries
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