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Circuit Design Jobs

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Fixed-Price - Est. Budget: $ 2,500 Posted
Design a Light based electronic digital display that is capable of running on a 12 volt system that can meet the following requirements. 1) Must be of high resolution. 2) Must be 10.75"x10.75" or 273mm*273mm. 3) Must be full true color. 4) Must be programmable. 5) Must have battery backup ability. 6) Must be able to be used outdoors. 7) Must be weatherproof/waterproof or resistant. 8) Must be able to be seen in direct sunlight or darkness. 9) Need lowest power consumption possible. 10) Must supply one complete digital display with a controller.

Fixed-Price - Est. Budget: $ 150 Posted
More details can be give upon request. In general we need you to code the software for an arduino device. OBJECTIVES: Must function off raspberry PI, or other arduino device on a full color screen (we can provide most drivers) It will need to turn on and show a spash screen before reaching main screen. Device must read from our Thermocouple module. Must be able to display set temperature read with thermocouple, and raise or cool accordingly to get to a user set temperature. Home main screen will have a menu system, all touch screen activated. We will supply general GUI sketches and provide all graphic design work needed. You must need to know about PID tuning, arduino development, and the concepts of relays, using arduino to trigger one, etc.

Fixed-Price - Est. Budget: $ 1,000 Posted
Hi, I need a high voltage circuit designed. I need to be able to transform a low voltage (ideally between 12-24V) to a very high voltage of 45,000V, so there is a potential difference between two electrodes 45,000V (i can then vary the electrode size, distance to create the desired electric field strength etc). The output voltage needs to be variable to a minimum of the low input voltage and to a maximum of 45,000V.

Fixed-Price - Est. Budget: $ 400 Posted
We are looking for Hardware Designer who can design the PCB and select suitable components to match the detailed requirement and functionality, the aim is to replicate the Garmin 1000 PFD & Audio Panel. The design requires a routing/layout of tracks for the switches and knobs and interface with the controller. The circuit would require converting the switches and button presses to USB interface utilizing either the Leo bodnar BBI 32 or a separate circuit all together with a driver. The Display screen sourced to match the size of the actual unit should have a VGA interface. A second revision option should have the capability to install an Rpi to drive the display and in interface the input buttons. There should also be an option to place SMD LEDs to provide for Backlighting capability and have easy interface/connectors to replace any key during maintenance activities.

Fixed-Price - Est. Budget: $ 100 Posted
circuit board to measure air pressure. and an LCD display circuit chould be very small in size. air pressure uo to 9 bars. after completing the project circuit and LCD and all related parts Hardware and software and code and diagrams should be shipped to me LCD should display consumption level, when it should be empty, I think this is all simple formulas. My Budget is in the $100 range includes shipping, part prices, unless i can approve, if you are not interested please withdraw from this project thanks

Fixed-Price - Est. Budget: $ 20 Posted
"I have a dream..." I want to build an electronic board for a smart home project. I need digital inputs (for buttons, dry-contact), digital relay outputs (230V, 16A), and some basic logic (like a way to communicate with the board via MODBUS registers for example, and get inputs when button pressed and change register value to make a light ON or OFF). If you know about logic, electronics, PCB design, etc. - I'd happy to hear your insights about making such a board. Also, I still don't have an idea of how can we design that board on your place, and have it working at last - on my place. I'd be glad to hear good ideas for that. (designing it, making it, putting on all components, and seeing it at work..) Thanks.

Fixed-Price - Est. Budget: $ 150 Posted
I need a circuit board designed for automotive accessories to be easily added to vehicles. The circuit board will need to have a common power input and common ground, 6 relays with switchable power inputs, screw terminal in and outputs for the relay switching and outputs. The board is to be approx 150-200mm long x 100mm wide roughly. Each power input will need to be fused.

Fixed-Price - Est. Budget: $ 500 Posted
I want an electronic circuit which can communicate with a smart phone through bluetooth interface. This should include a software install-able in smart phone( both androids and windows) which you can switch on phone bluetooth through it, send signal to the circuit when there is incoming or outgoing call, then the circuit perform some switching. kindly send me a quotation soonest possible.

Fixed-Price - Est. Budget: $ 15 Posted
Hello, Please visit these 2 URLs. 1) http://www.instructables.com/id/ARDUINO-ENERGY-METER/ 2) http://www.homemade-circuits.com/2013/03/simple-dc-ups-circuit-for-modemrouter.html Your job is to mix these 2 circuits. Changes you have to make: For link 1: use arduino nano instead of arduino uno. I dont want to use ethernet shield. All the values have to be put in csv file and sent through usb port to computer. For link 2: You need to optimize this circuit to 12V/5amp DC from solar panel input(controller will be present). Now the arduino nano present in link 1 have to measure the voltage,amp and wh for link 2 circuit: i) electricity used to charge the battery ii) electricity supply in case of power failure from mains (No solar input) iii) electricity supply directly to modem (from solar controller to modem) The link 1 meter should send the values of these 3 cases in every 1 sec. You need to send me all the required parts (in detail with the part number), arduino...

Fixed-Price - Est. Budget: $ 2,000 Posted
You have to make Bluetooth Smart Card Reader, PCB scheme OR device itself. Smart Card Reader MUST communicate by BLUETOOTH. Reader will serve transaction for game centre. Preferred microcontroller with smart card interface and bluetooth chip. Than simpler than better. Please bid if you have some experience with it.