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Circuit Design Jobs

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Fixed-Price - Est. Budget: $ 2,000 Posted
We are looking for a qualified Electronic Design Engineer to design schematic and write firmware source code in C file and build a PCB to our specification. We have a specification of the requirement, detailing the processes and chips required. We are looking for the following, based on the information we will provide. Source Code C File and C. output exe PCB Schematics and Layout. Prototype If you have the experience and province track record we are looking for please get in contact as we look forward to hearing from you.
Fixed-Price - Est. Budget: $ 150 Posted
Hello, Here is a updated description, we are looking at building a little toy that plays music and uses a motor and has lights. We would like the music, lights and motor to be controlled via bluetooth through a free app. We would like to be able to turn the toy on and off via a app. We have some modules but not sure if they will work. We have the Redbear Mico controller (http://redbearlab.com/blendmicro/ ) and the sparkfun mp3 shield (https://learn.sparkfun.com/tutorials/mp3-player-shield-hookup). Redbear has a free app that we would like to use for testing until we can make one. We will need to have three buttons for the Mp3 player on the toy to turn the volume up and down, and play/pause. We need a on- off button for the toy as well. We are not committed to using the modules that we have, if you know of a better way, we are open to improvements.
Hourly - Est. Time: Less than 1 month, Less than 10 hrs/week - Posted
Conceive & Detailing of LT/HT SS/TR Line, Industrial Electrification projects of vide variety including including Drafting of Specification, Preparation of all necessary Drawings, Preparation of 'Bill of Quantities', Procurement of Equipment & Components, Assist in Installation & Commissioning of the works.
Fixed-Price - Est. Budget: $ 700 Posted
Hey Guys, I have designed a circuit.The proposed circuit, will be used for a tracking device. The device can be connected to smartphone via Bluetooth protocol. This circuit contain following sections: 1. controller: This Section contains NRF51422 microcontroller, Antenna, motor driver, LED controller. 2. Power Section: This circuit provide energy for the system. This circuit also charges a battery by solar cell. The system has 2 source of energy, rechargeable battery and a backup battery. Also rechargeable battery has an output to a USB charger. 3. GSM/GPS: this circuit can locate the device and send its data through SMS to the user, also user can communicate with device in long distances via SMS. Concerns: -Circuit Size. Since the device is really compact, size of the circuit is an important factor. -Energy Efficiency: Solar cell is the only source of energy, therefore developing a low powered system is the must. Cooperation I will provide schematic design of the...
Fixed-Price - Est. Budget: $ 50,000 Posted
We require the Hardware and Software Development for an IoT enabled device, which will contain: Multiple LED's, BLE (Bluetooth Low Energy), GPS (2G/GSM/3G compatible) and a Temperature Sensor. We will also need a mobile application (iPhone and Android) to control aspects of this device (LED's and to check the Temperature) over Bluetooth and then synchronise with a Wi-Fi enabled Base Station in the home. This device will also need to contain a RESTful API to talk to other devices like LIFX, Philips Hue, NEST Thermostat, etc. The device will need to have the most amount of available battery life when not in use (e.g. low-power mode). Because this is a GPS device, it will need to consume as little battery power as possible. If this is something you are interested in, please do not hesitate to show your interest and provide a quote.
Fixed-Price - Est. Budget: $ 5 Posted
Create the electronics to turn a 6vdc peristaltic pump on/off. It includes the ability for the user to program the duration of pumping (in seconds) and the interval (in minutes) between pumping. Read the attached document for full specifications. This is NOT rocket science. This is basic electronics 101. The same electronics will be placed on 2 separate PCB configurations, one for the XEROS1 NP (non portable version) and the XEROS1 GO (portable version) The attached specs are for the XEROS1 NP but are exactly the same for the GO but configured on a different PCB (to fit the enclosure). More details will be discussed and you will be provided an enclosure to test your work. Your work will be replacing the unit as seen here: http://drymouthpump.com After the circuit is developed, worked onto a PCB, you will be asked to provide 5 to 10 units at a time throughout the course of the year(s). You can do this yourself or hire it out. Regardless I need a cost per unit from you,...
Hourly - Est. Time: Less than 1 week, 10-30 hrs/week - Posted
We are a large company that are looking for an expert to review and improve existing Buck DC/DC electronic design. The goal is to design a Buck DC/DC converter with low heat losses, acceptable cost, small footprint and low ripple. We are currently using a working design that needs the improvement here mentioned and we do need a very experienced engineer in power electronics. Details: Max operating voltage: 100V Max operating current: 15A Max operating power: 350W. The actual second DC side is a dump resistor of 1ohm. This is a work for an Advanced engineer with experience in power conversion. For more details, please feel free to contact me