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Circuit Design Jobs

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Fixed-Price - Est. Budget: $ 300 Posted
Design a power bank of capacity 10,000mah(Li-Polymer) which provides two ports for charging mobile. It have following features 1. Power bank should be charged in less than 4 hours. 2. Power bank and mobile devices could be charged simultaneously. 3. Overvoltage protection 4. Overcurrent protection 5. short circuit protection 6. Cell balancing 7. Two Ouput USB ports for charging mobile one of 5V 1A and other of 5V 2A Need serious bidder. This may be start but it can turn into long term relation. Bidders from Pakistan are encouraged to apply.
Fixed-Price - Est. Budget: $ 100 Posted
Design a schematics diagram for Altera MAX V CPLD 5M40ZE64 CPLD, which will be used to produce a evaluation/development board for this device. -- Route as many IO pins as possible and provide descriptive names and port numbering for them. -- Route the ISP pins and group them to a pin header compatible with Altera programmers. -- Route and name the power input pins. -- Add all the required active and passive components to ensure stable operation of the device. -- Provide a file with a description for each pin, mentioning its number in EQFP package, all its configurable functions, input/output voltage and current limitations, etc. -- Include a short textual overview of the board into the text file. Assume that power is provided externally to the board. The expected result should contain: -- circuit drawing in PDF, SVG or another graphic format; -- circuit definition file for one of the popular schematic editors; -- a text file with pin description and board overview This...
Fixed-Price - Est. Budget: $ 5 Posted
I need a schematic designer to design my meeting Room Screen Boards Board Components 1. Aurdino 2. PoE 1. using Silvertel AG9120 PoE Module 2. RJ45 3. Pulse Transformer 4. USB to LAN 3. PN532 for RFID/NFC 4. Proximity Sensor - range 4 -5 meter S/W Components 1. Board needs to communicate with Android i.e USB to LAN compatible with Android 4.1.1 2. Aurdino burnt on ATMEGA 328 Board Size 1. Length - 17 cm 2. Width - 5.3 cm Connections 1. Aurdino to Tablet via USB/OTG cable 2. PoE - i.) Connection to Power port of Tablet . ii) Data Port to connect directly through OTG/USB 3. Proximity Sensor controlablle through Aurdino
Fixed-Price - Est. Budget: $ 250 Posted
Currently seeking an electronics engineer to design a custom circuit / PCB based on a working Arduino PID controller prototype. (MCU programming is not part of this solicitation but may be involved in follow-up work.) Budget negotiable based on experience & expertise. Size: Approximately 5cm x 5cm, 1 or 2 Layer Input Power: 120VAC @ 60Hz MCU: ATmega328 The device will have various inputs and outputs (buttons, sensor, buzzer, LEDs, etc.) that will be PCB-mounted and/or attached via PCB-mounted connector. It will need to have an integrated power supply as well as a solid state relay circuit (opto-isolator / triac) for controlling a separate mains-powered device. It should also include safety features common and/or required (UL, CE or otherwise) for use by consumers. The design must follow best practices and be verified by common rule checks. Deliverables include a complete technical specification (gerber files, schematics, design files) and a detailed BOM outlining the most...
Fixed-Price - Est. Budget: $ 15,000 Posted
Hello, Android, Arduino, and SIMPLE electrical soldering projects available, more money if one guy can do it all! read below! I have existing Arduino code that I need to be modified. Currently, the Arduino code take an input from a reader and stores that unique signature to an attached SD card. I need the Arduino to also send the unique code to a Bluetooth enabled phone and to also send that captured signature to an antenna. The Bluetooth modules and Writer modules already exist for the Arduino and simply need to be added in a way that they all work together seamlessly. On the Android side of things: I need a very simple Android app that can sync to the Arduino's bluetooth module. When the Arduino sends a unique string of characters to the Bluetooth Android mobile app, the mobile app needs to store the unique string and add a time stamp. Secondly, once a unique string is captured by the mobile app, the mobile app will emit a text message/ringtone notification sound. Lastly,...
Fixed-Price - Est. Budget: $ 150 Posted
Hello, We're looking for a specialist in electronic engineering and circuit design for finishing our simple circuit interphase that will be connected to an Arduino Mega. All the components are defined, bought, and located in the position they should be (Upverter). The circuit is comprised of potentiometers, resistors buttons, switches, rotary encoders, and leds. We need you to design the connections between them and the cables that will go to the Arduino, and prepare the file for printing or milling / drilling. Previous Arduino experience is a major plus.
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.
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...