电路设计 Jobs

If you want an end to end outsourcing solution for all your projects relating to circuit designing, outsource the work or job at the world's best marketing resource online Freelancer.com and get the work done by the expert circuit designer freelancers. These freelancers work online from all across the world and can be helpful to you and your project. Freelance them the work to be done either on part time or full time basis and be assured of an optimum result. The job sphere may include PCB designing, PCB board circuit debugging, layout, schematic designing, MCS including the software design and the hardware design.

The freelancer circuit designer will be able to work on the PCB print circuit, half finished product design, finished product and also assemble them. Their other work expertise are high speed telecom, RF board, DSP, microcontroller control, signal board, circuit design and assembling, electronic items designing like toy, motor, electronic gifts, main board, security defend, Vidicon, USB, DVD etc. If you are a freelancer having adequate skill and experience in circuit designing, Ethernet, USB, electronics, networking, digital and such related fields, submit your bid in the Freelancer.com and get posted immediately.

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    48 搜到的工作,价格货币为 USD
    pcb design 6 天 left

    PCB design to control a DC motor by means of a hall sensor to control run time/distance. The motor is to be controlled via reverse polarity power to control travel direction

    $20 / hr (Avg Bid)
    $20 / hr 平均报价
    11 个竞标

    We need to code a STM32 chip to act as a led multiplexer. The task is to multiplex 200 leds in an exact timed sequence (that we will provide) We have the component schematic for pin assignments also, just the code is remaining to develop

    $127 (Avg Bid)
    $127 平均报价
    7 个竞标

    Build a Walkie Talkie using micro:bit with minimum 2 KMs range and 2 Way Radio. for micro:bit info please visit https://microbit.org. Two micro:bit Walkie Talkie devices should able to communicate each other like standard Walkie Talkie works.

    $87 (Avg Bid)
    $87 平均报价
    2 个竞标

    - Reposting - Need an Engineer to design the circuit schematic and PCB layout for a Rockchip RK3399 SoC. This board will use a Linux based OS. All components used (wifi/bt /ethernet controller...) must have working linux drivers. Board will need to have: RK3399 SoC 4GB RAM - LPDDR4 SD Card Ethernet Port - 100M or 1G, depending on component cost. WiFi + Bluetooth - WiFi @ 2.4GHz and Bluetooth at ...

    $698 (Avg Bid)
    $698 平均报价
    7 个竞标

    well, you know, I need to design a PCB for a device I am developping.

    $1045 (Avg Bid)
    $1045 平均报价
    37 个竞标

    hello freelancers, i am looking for an engineer who can program the V9881D IC so that it can output voltage (Volt), current (Ampere), power (Watt), and single-phase electrical energy (Kwh)

    $123 (Avg Bid)
    $123 平均报价
    7 个竞标

    want to design circuit for junction box.

    $110 (Avg Bid)
    $110 平均报价
    11 个竞标

    I need someone to deliver the schematics for a ten keyless pcb that’s hotswappable with rgb’s above every key.

    $423 (Avg Bid)
    $423 平均报价
    19 个竞标
    Electronics circuit Diagram 5 天 left
    已验证

    Design electronic circuit flow of a portable charger and a charger adapter integration.

    $80 (Avg Bid)
    $80 平均报价
    18 个竞标
    Vehicular Traffic Counter 5 天 left
    已验证

    The Vehicular Traffic Counter (VTC), placed 15m from the edge of the road, scans, identifies and records the number of cars, trucks etc that pass every hour and saves the data onto a memory card. The VTC is unobtrusive. No one should know it's there.

    $225 (Avg Bid)
    $225 平均报价
    9 个竞标

    Se requiere el desarrollo de un PCB para controlar un compresor. Las especificaciones se encuentran en el archivo adjunto.

    $169 (Avg Bid)
    $169 平均报价
    12 个竞标

    I'm looking for a bright electrical engineer that can design a powerful but efficient ~40,000lum flashlight driver/step-up convertor that can be controlled using PWM. Input voltage: 4*18650 Battery 14.8v Driver Design: PWM control input (on/off, dim, strobe) 40mm-45mm diameter PCB Spring in the center and ground ring around it for direct contact to power (see attached pictures) Overheat, op...

    $348 (Avg Bid)
    $348 平均报价
    17 个竞标

    Electrical engineer is required for calculation . Please place bid if you can start work right now. I want this task to be completed within an hour

    $129 (Avg Bid)
    $129 平均报价
    32 个竞标

    We have a Esp32 board, which contains touch and IR Receiver, Getting Guru Meditation Error when we are trying to store previous state in EEPROM using touch and IR . Need to Solve this problem.

    $30 (Avg Bid)
    $30 平均报价
    5 个竞标

    need an online open book exam done on a module called engineering principles. contains mechanical engineering questions and electrical engineering questions

    $161 (Avg Bid)
    $161 平均报价
    16 个竞标

    We have an issue in that the license manager for a PADS PCB Design Software has stopped. We need to determine whether the process is running properly and remediate and test on the client.

    $140 (Avg Bid)
    $140 平均报价
    2 个竞标

    We are paying for written application notes based on our configurable mixed signal ICs & integrated power switches. These parts are very versatile so there are many applications that they can be designed for. The application note should be a 1000-3500 word technical white paper describing an application and how it uses the part (ICs or integrated power switches). Writer will be responsible for...

    $1486 (Avg Bid)
    $1486 平均报价
    3 个竞标

    Dear Candidate, I am looking for someone that can design and engineer a golf putting training aide. Please see details below: Small unit, battery-powered (or USB) that can easily sit inside a golf bag. Can't be too big. Features of the unit: - makes a beeping noise (metronome) that can be adjusted to suit - flashing light that matches the beeping noise - random number or picture or ques...

    $99 (Avg Bid)
    $99 平均报价
    10 个竞标

    I currently have Laser Diode Driver, and I am going to build my own board for it. The max current output will be 40-45 amps, and the input will be 24V DC. This board will include 3 TEC drivers 10A, 5A, 5A. For the DC converter, I have a specific component in mind, it will be Vicor component. I will share details to the right candidate. Schematic design is urgent, so please contact me. Thank you

    $286 (Avg Bid)
    $286 平均报价
    22 个竞标

    I am looking for a creative engineer who can find a solution to be able to generate 5v and 20mAh for battery storage using kinetic power. Dimensions need to be L4cm, W1.5cm, H0.7cm

    $432 (Avg Bid)
    $432 平均报价
    15 个竞标

    Hello freelancers, I am looking for expert in schneider PLC

    $234 (Avg Bid)
    $234 平均报价
    29 个竞标
    Solenoid Kicker - Arduino 3 天 left
    已验证

    Use of a 12V SLA Battery to charge a 450V 2700uF Capacitor with a 45V-390V ZVS Capacitor Charging Module to fire an Electromagnetic Solenoid using Arduino with a MOS Driver Module IRF520. I want to use: Arduino and use the full capacity of the Capacitor. Standard 5V relays (with Arduino) only go to 250V. Instead I have the MOS Driver. Problem is I don't know how to connect the Charger + Cap ...

    $108 (Avg Bid)
    $108 平均报价
    16 个竞标

    I need a design for a connection between RTU and some devices. I have a small project consistingof 12 Motorized valve, 3 Flow meter, 3 Flow control valve and 5 RTU.

    $38 (Avg Bid)
    $38 平均报价
    5 个竞标

    We are a startup from India developing lithium based energy storage solutions for electric vehicles and passive storage applications such as solar storage and UPS. We have developed a 4-cell BMS for 12.8V LFP batteries in-house post which we would like to incorporate some additional features in the current BMS design and develop a 15-cell BMS for 48V applications based on the current design. The s...

    $1159 (Avg Bid)
    $1159 平均报价
    9 个竞标

    We are a startup from India developing lithium based energy storage solutions for electric vehicles and passive storage applications such as solar storage and UPS. We have developed a 4-cell BMS for 12.8V LFP batteries in-house post which we would like to incorporate some additional features in the current BMS design and develop a 15-cell BMS for 48V applications based on the current design. The s...

    $2069 (Avg Bid)
    $2069 平均报价
    6 个竞标

    I am looking for an electronic design using 'minimalistic components' to improve battery balancing. The circuit will be embedded inside the battery with not more than one communication cable between the batteries. 1. The balancing should work both series and parallel connected batteries / battery strings. 2. The battery current has built in sensors for current and voltage. 3. The ...

    $424 (Avg Bid)
    $424 平均报价
    19 个竞标
    PCB schematic design 3 天 left
    已验证

    Hi, I need already available schematic and PCB design for esp8266, esp32, esp32cam and Arduino micro. These must be simple and on EasyEda.

    $20 (Avg Bid)
    $20 平均报价
    21 个竞标
    Electronic PCB design 2 天 left
    已验证

    I need a home alarm - Siren and LED Light driver module. I have a sample need some changes . Would prefer Australia based designers . Will need some Chip programming skills

    $119 (Avg Bid)
    $119 平均报价
    29 个竞标

    I think my ex girlfriend has had surveillance devices professionally installed in my home. They are very well hidden and extremely small. I need a professional to tell me what I’m looking at.

    $154 (Avg Bid)
    $154 平均报价
    5 个竞标

    SMD parts on my PCB boards are categorized on numbers such as R2085 R2067 C990 C998 C1012 C989 U161 and U252 and same like other parts .I was wondering if anyone could help me find the real ohm and names of these SMD parts ?

    $79 (Avg Bid)
    $79 平均报价
    30 个竞标

    English or Español. Be sure you understand all details. I need PCB design for Solar panel circuit (21V) to charge Litio battery (3.7V -4.2V). -PCB 2 layers in KiCAD -I'll provide PCB shape in KiCAD file -I'll provide actual PCB circuit in KiCAD file -PCB dimensions less than 90x90mm (has enough space) For now I have one circuit done in KiCAD but there is something that not wo...

    $47 (Avg Bid)
    $47 平均报价
    17 个竞标

    we are in need of a PCB designer and assembler , the detail of the pcb board are in the doc we will put 50% of the budget in milestone the budget is 500 +100 bonus +1 dollar per unit when the production is done we are planing 1000 unites the time todo the job is 9 days we will not release any milestone until the prototype is tested , we prefers that the prototype will be done in Shenzhen , the tes...

    $530 (Avg Bid)
    $530 平均报价
    13 个竞标
    LED DRIVER 2 天 left

    Looking for electronic designer in Delhi/Noida having experience in designing SMPS power supply/LED driver.

    $106 (Avg Bid)
    $106 平均报价
    7 个竞标

    - Simple electronics schematic design - BOM finalization - PCB Design - PCBA Samples

    $451 (Avg Bid)
    $451 平均报价
    52 个竞标

    logic gates circuit hand made with using computer and mobile app

    $12 (Avg Bid)
    $12 平均报价
    17 个竞标

    Hi, I am looking for an expert engineer in the field of Buck/Boost converters. Need to review a buck/boost converter design based on the TI SM72442 MPPT IC.

    $155 (Avg Bid)
    $155 平均报价
    11 个竞标

    Need to review a buck/boost converter design based on the TI SM72442 MPPT IC. The prototype is built but the MPPT IC is not working properly, need to spot what may be the error in design.

    $921 (Avg Bid)
    $921 平均报价
    29 个竞标

    I need an expert in QMK software, I have already worked on the pcb design.

    $131 (Avg Bid)
    $131 平均报价
    3 个竞标

    Antminer S17 series Hashboard schematic and ASIC repair guide needed . Voltage check points or frequency check any other related information and software for their PIC programming. Please kindly bid if you have experience with bitmain hashboard repair.

    $358 (Avg Bid)
    $358 平均报价
    2 个竞标

    I have a LIN Slave controller project to drive a DC motor using Microchip Automotive Networking Development board ([登录来查看链接]) with PIC18F66K80 ([登录来查看链接]) MCU. Is this something you can do? Thank you.

    $179 (Avg Bid)
    $179 平均报价
    14 个竞标

    I need project Assistance about Touch Board(Bare Conductive ) and Multiplexer (Mux Shield II) expert for my project Assistance

    $7 / hr (Avg Bid)
    $7 / hr 平均报价
    12 个竞标

    I need project Assistance about Touch Board(Bare Conductive ) and Multiplexer (Mux Shield II) expert for my project Assistance

    $17 / hr (Avg Bid)
    $17 / hr 平均报价
    12 个竞标

    Attached is the project brief. Looking for someone to design the circuit, PCB and firmware for an ultrasonic measuring tool. The product measures distancing using ultrasonic sensors (want to build our own circuit for this, not off the shelf components) and has quad 7 segment displays for displaying the measurements, wireless TX and RX boards for remote operation, user input via buttons etc. Th...

    $665 (Avg Bid)
    $665 平均报价
    40 个竞标

    Hi I would like to build a very small induction heating system that has a build-in some features: 1) must work with 5V 3A+ 2) must have a thermocoule that will measure the temperature of the heating element 3) must have controls for setting max temperature and turn off induction when temperature is reached 4) must turn on when heated element is cooled by 10 degrees (basically keep the heated elem...

    $30 (Avg Bid)
    $30 平均报价
    4 个竞标

    Hello freelancers, I Need a complete design of a smartphone motherboard that work with several components. I need design, populate and deliver a working motherboard

    $149 (Avg Bid)
    $149 平均报价
    6 个竞标

    Hello freelancers, I Need a complete design of a smartphone motherboard that work with several components.

    $26 (Avg Bid)
    $26 平均报价
    7 个竞标
    Electrical Wiring 1 小时 left

    i will create a schematic diagram of your electrical wiring to manage the safety of your homes, work place especially your family, friends and other people that you love.

    $21 (Avg Bid)
    $21 平均报价
    10 个竞标