Circuit Design Jobs

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Hourly - Intermediate ($$) - Est. Time: 1 to 3 months, 30+ hrs/week - Posted
We are designing some remote wireless sensor devices for various markets including consumer and business customers. These sensors could monitor a variety of inputs including temperature, humidity, motion, AC current, water flow. The sensors will provide Web feedback and or remote control to customers by E-mail, text messages, web pages and Smart Phone Apps. The sensors may also switch off and on local devices such as lights, pumps or dry contact switches. We are looking for suggestions for hardware devices to provide the Client end and also programming both the devices and the customer interface side ie: Web page, Text messages, smart phone Apps. Please provide your your suggested hardware recommendations and quote your time to build a working prototype and a customer interface. Follow on work will depend on the success for the 1st working prototype.
Skills: Circuit Design Electronics Embedded C Web design
Hourly - Intermediate ($$) - Est. Time: Less than 1 week, Less than 10 hrs/week - Posted
I am looking to power several devices using one power source rather than one power adapter per device (which in case of digital cameras seems to be the only option). I need a schematic so I can build a PCB which would allow me to plug in several (e.g. up to 6) devices at once but making sure I don't blow up anything if not all outputs are used (like my current setup, which obviously failed). Possible specs are 6 outputs of 8VDC @ 2A each, protected against over-voltage and over-current to protect camera equipment. Current cameras I'm using are Nikon D3300, in case you need to look up existing power supplies or battery solutions. Also perhaps Nikon D810. Depending on the complexity I may also have you design the PCB.
Skills: Circuit Design Electronics PCB Design
Hourly - Intermediate ($$) - Est. Time: Less than 1 month, Less than 10 hrs/week - Posted
I want to make a wearable device that would have a microphone that would pick up speech and send the audio via bluetooth to a speech to text iphone app I have already completed. Then the app would send the text message generated to a screen on the wearable device. Am thinking either Arduino or Rasberry Pi (or something better?)
Skills: Circuit Design Arduino Electronics iPhone UI Design
Hourly - Expert ($$$) - Est. Time: 3 to 6 months, 10-30 hrs/week - Posted
Someone who understands electronics enough to design circuit and schematic capture. I will need someone to transfer my schematic from a pdf to Altium or EagleCAD. I do not have time to do it myself. Job will require you to not only to draw schematic in a pcb software, but also create footprint of components that are not already in an existing library and detect any errors. Skills needed are knowledge of circuit design, layout design, and electronics in general. I will have schematic, BOM, and datasheets for completion of job. Additional key words: STM32, component selection, power and signal integrity, embedded hardware, firmware, integrated circuit, Lipo battery management IC, battery charging IC, IMU, wifi module, motor controller, video processing. The perfect candidate can easily transcribe schematic over to pcb design software and layout according to datasheet recommendations, but also suggest ways to reduce BOM, reduce PCB real estate, suggest components that may work better, etc. I need a team player who can stick around until prototype comes to life.
Skills: Circuit Design Electrical engineering Embedded Systems Microcontroller Programming
Hourly - Expert ($$$) - Est. Time: Less than 1 month, 10-30 hrs/week - Posted
I am interested in having a circuit board and layout based on the Rasp Pi III 64 bit. This project will produce a schematic capture and a circuit board layout . We would prefer either using Eagle CAD or McCAD for both. The basics of the design is to include an on board power regulator excepting no less than 24 VDC supplying: 3VDC at no less than 500mA 5VDC with no less than 1.5 A 24 VDC with no less than 4A Other aspects of importance: 2 8 bit IO ports A & B 2 USB 3.0 ports GPS WiFi Bluetooth 100 Mb TCP-IP (TCP/UDP) - 1Gb would be preferred I2C port 2 Gb on board memory or memory slot to enable maximum allowed memory expansion Camera interface (CSI) Display interface (DSI) Micro SD card slot push-pull
Skills: Circuit Design
Hourly - Intermediate ($$) - Est. Time: Less than 1 month, 10-30 hrs/week - Posted
Hi, I am looking for someone to create the shell or basics of a DIY project for me. I am looking for suggestions and then creation/implementation. Essentially I want a sort of microcontroller to control a 6x5 LEDs. I do not want to use one of those square matricies online, but independent LED's so I have more flexibility with where I put them. Any individual light or groups of lights should be controlled and changed by pressing a button(s) on a mobile or web app. I am looking for suggestions on the parts (i.e. Arduino vs Raspberry PI, shift registers, counters, resistors, etc), then once agreed design and creation. The web or mobile app can be very basic and simple in order to test the device. Thanks!
Skills: Circuit Design Application Programming Electrical engineering Electronic Design