• ¥140元 Arduino programming

    状态: 未托管 关注: 截止交稿时间: 2019-02-04

    fr(中文版)

    Hi there, Arduino is a tough subject. Some tasks need to be solved by steps and coding and also by connecting the wires properly between the arduino and the code. can someone do the connection and the code?

    技能: Arduino, C 编程, 电子, 微控制器, 软件构架

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  • ¥500元 PCB Design USBC amp USBC Controller and 18650 Battery Management with 5v down c

    状态: 未托管 关注: 截止交稿时间: 2019-02-04

    fr(中文版)

    I need a PCB developed to meet my specifications and provide the following functionality:

    • Full Balancing and battery management of & hardware protection for x4 3s banks of 18650 LION cells terminated via 8mm.015mm nickel strips (ideally with low temperature solder or spot weld to board).

    • USBC input port for DC power to charge with USBC Charge controller

    • Down conversion to 5V and breakout to Arduino headers

    • Adruino charge monitoring

    • Arduino switchable optical (ideally) relay to disable load until enabled

    The PCB is probably dual layer and the connections for the nickel strips must stay in the same place and the PCB size must stay at 29x123mm.

    I would like the following deliverables developed from my specification:

    • A full executable and dual layer PCB design for the paths an components to fit within the specified constraints.

    • A Gerber file or other industry standard file for the single or dual layer PCB for the above.

    • A checklist showing against each component in my specification that it is placed and then the additional supporting components that have been added to it for smoothing/regulation/rf/esd.

    • A specification showing in full the low and high current and voltage tolerances for each circuit.

    • Points identifying how RF shielding and EMC have been considered and addressed in design.

    • A definition of new functionalities I have not mentioned in my spec (protection circuits etc) and how they behave based on the functionality I have identified.

    • An updated CAD file for the PCB and all Components (internal circuit routes are not required)(ideally somehow exported to Sketchup with groupings or alternatively as STP as an assembly also with the individual STP files).

    • A Bill of Materials for components from RS components or Misco (UK). Any components that are not sourced from these suppliers must be checked with me and ideally they all come from these suppliers.

    The arduino I have selected uses ESP32 which already has a number of filters etc built in.

    Specifics of connections are:

    • Board mounted USB C port for DC power in and if possible DC power out (not essential).

    • 8 x 8mm x .15mm Nickel Strip terminations on the PCB.

    • Charge Status LED (Charger connected, voltage full (green), charger connected, charging (flash green), charge initialising (flash yellow) charge error (flash red).

    • 4x 2mm Female Banana Socket for Motor Load. Motor Load is up to 260W per motor (burst). Continuous load is 12V *2A-20A x2.

    o Connections to and from arduino to be discussed and agreed, but identified as:

    i. 1x 5v GND mounted Header pin for Arduino Device power

    ii. 1x 5v+ mounted header pin for Arduino Device Power

    iii. 1x mounted header pin for Motor Enable Relay or circuit

    iv. 1x Arduino pins for for regulator charge voltage monitoring

    v. 1x data in for WS2812 LEDs

    vi. 1x data out for WS2812 LEDs

    vii. 1x suitable ribbon connector for 5v and data in/ out from WS2812 LEDs.

    • Charge Status LEDs for each 3S bank.

    5.3.2 Other Requirements

    • Over/Under Current/Voltage Charge/Load/Temperature Protection to kill load and charge for each bank of the 3S Cells.

    • 12v to 5v down Conversion for Arduino.

    • Charging Management and Balancing for the 4 sets of 3S LION x Cells.

    • Optical motor/load enable relay or other switch to require 5V signal to enable motors (from arduino) and disconnect load unless it is present.

    • USB C Charge Controller to support USB PD Profiles 2, 3, 4, 5 (or fix to 4 or 5 if required).

    o 12V@ 1.5 = 18W

    o 12V@ 3A = 36W

    o 12V@ 5A = 60W (if fixed, fix to this).

    o 20V@5A = 100W

    • Regulators out for charging read to Arduino for each bank or for all banks.

    • Capacitors and Resistors for smoothing and protection for all devices.

    • Ability to charge from under capacity.

    • No lossy conversion up or down.

    • Minimise and estimate heat generation (motor connections have been placed next to battery connections to facilitate this.

    • Filters for interference between voltages and noisy components.

    • Clear labelling

    技能: Arduino, 电機工程, 电子, 微控制器, 印制板布局

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  • ¥500元 Jewellery Design

    状态: 未托管 关注: 截止交稿时间: 2019-02-04

    fr(中文版)

    I am looking for someone to CAD design a small 'collection' of diamond set jewellery. 6-8 rings, 2-3 pendants and earring sets and 3-4 bangles. Jewellery design knowledge would be preferable due to the process of diamond/stone setting on CAD produced items.

    技能: 3D建模, 3D 渲染, AutoCAD, CAD/CAM, 产品设计

    查看更多: design implement program simulate round robin process, design implement program simulate shortest job process, design a logo for mind stone software company, graphic design i need some graphic design, hello freelancer i need simple logo design and i have a pretty good idea what type of design i want, hello freelancer i need simple logo design and i have a pretty good idea what type of design i, i drew a design i want turned into a logo, i have a still image with a design i need you to draw it in vector form with correct alignment so we can print it on t-shirt, i have my design i need to install on website, i need help setting up microsoft outlook 2013 in waltham, i need someone to word process 1 page, design i love house music logo, free graphic design i can edit on line, freelance design i norge, graphic design i, i am a fresher in graphic design i need a job, i have a smartphone design i just need a manufacturer, indowesreoutfit design i want, logo design i

  • ¥140元 encoder incremental

    状态: 未托管 关注: 截止交稿时间: 2019-02-04

    fr(中文版)

    desenvolver encore incremental com leitor ótico e PIC16F628a. o sensor ótico irá fazer a leitura do disco vazado de 100 furos e a saída será dupla sendo o sinal A defasado em 90° do sinal B (imagens de auxílio em anexo).

    Além disso será necessário a criação do circuito elétrico e do desenvolvimento da PCI de acordo com as dimensões que serão passada.

    技能: C 编程, 电子, 工程, 印制板布局, 葡萄牙语(巴西)

    查看更多: criação de design online, criação de logo freelancer, criação de logomarca para freelancer, design criação de logo, empregos agencia criação freelancer, empregos agencia criação freelancer curitiba, empregos agencia criação freelancer florianópolis, empregos agencia criação freelancer porto alegre, freela com criação de baner site oficial, freelancer criação, freelancer criação de banners, freelancer criação de peças publicitárias, freelancer criação de sites, freelancer de criação de conteúdo de web, freelancer em criação, freelancer para criação de sites, seja freelancer de criação de conteúdo de web, trabalhe como freelancer criação de peças publicitárias, vagas agencia criação freelancer, criação de email

  • ¥500元 Mechanical design modeling drawings renderings from hand sketchprototype

    状态: 未托管 关注: 截止交稿时间: 2019-02-04

    fr(中文版)

    This project involves taking a prototype and hand drawings and modeling a design with drawings and renderings for possible manufacturer. The device is a elaborate vacuum attachment which will require basic modeling of hoses valve, and plastic supporting parts.

    Project can be done in steps.

    I prefer to work in Fusion 360.

    技能: 3D建模, CAD/CAM, 机械工程, 产品设计

    查看更多: mechanical design lpg, hand sketch web design concept, custom mechanical design solid modeling, hand done architectural drawings renderings, hand sketch artist impression drawings, mechanical design analysis projects prototype models, mechanical design sketch hand, hand sketch product design, mechanical design drawings rugged enclosure plus, mechanical design hand tools, mechanical design drawings, mechanical design drawings details temperature sensor, mechanical design prototype, mechanical design, 3D modeling, auto cad drawings from hand sketch, mechanical 3d design modeling, mechanical design modeling, Design a Logo from a hand sketch, 3D modeling and Mechanical Design

  • ¥80元 Processor design using Verilog

    状态: 未托管 关注: 截止交稿时间: 2019-02-04

    fr(中文版)

    I need someone having expertise in verilog to enhance a processor design to carry out more instructions using Quartus prime software.

    Further details will be provided.

    Deadline 3 days.

    Thanks

    技能: 电機工程, 电子, 工程, FPGA, Verilog / VHDL

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  • ¥500元 SDR system design for future mmWave transceivers (fixed and mobile)

    状态: 未托管 关注: 截止交稿时间: 2019-02-04

    fr(中文版)

    need an expert in electronics and communication to help me in that title

    技能: 电機工程, 电子

    查看更多: database design sql net web gps mobile, career design future, full code design net sending sms internet mobile, web design future work, need expert design real estate database, android sdr design, web design future scope project, mobile need, mobile need mobile app, design layout website using jquery mobile, design a banner for a mobile game, Design a logo for a mobile app, design a logo for a mobile comparison company, design a logo for a mobile phone and computer repair shop the name of the shop is fixit design a simple yet enticing logo, design a logo for manila mobile developers meetup, design a logo for my race need high quality creative design, design an advertisement for facebook mobile tablet and desktop, design et logo for go mobile, design future

  • ¥140元 Realtime GPSGSM tracker

    状态: 未托管 关注: 截止交稿时间: 2019-02-04

    fr(中文版)

    Create a real-time GPS/GSM tracker.

    Project should consist of:

    1) A GPS?GSM device which will send data (position) to the server. Device may be made of SIM800/808/900 and ATMEGA328P, but you can also use other microcontroller and other GPS?GSM module. Device must be able to receive 12V and/or 5V power.

    2) A web-server that will receive and retrieve GPS data and display current position (and time) on map. User should also be able to see position history after choosing date range (date-picker).

    You should deliver PCB with connections or just a connection-diagram, all documentation and all source codes.

    The project should be as simple as possible.

    RaspberryPi may be used as a web server

    技能: 电機工程, 电子, HTML, 微控制器, Server

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  • ¥500元 Stainless steel coffee tumbler

    状态: 未托管 关注: 截止交稿时间: 2019-02-03

    fr(中文版)

    I would like to design and create a prototype of a stainless steel coffee tumbler.

    技能: AutoCAD, 产品设计

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  • ¥19元 Engineeringmagnetic and electic fields

    状态: 未托管 关注: 截止交稿时间: 2019-02-03

    fr(中文版)

    Need a freelancer electical engineering graduate

    技能: 电機工程, 电子, 工程, 矩阵及数学软件, 机械工程

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  • ¥140元 PCB design

    状态: 未托管 关注: 截止交稿时间: 2019-02-03

    fr(中文版)

    PCB design, Gerber file and BOM file

    I need to make a PCB based on Arduino Uno pin, this PCB is a union of many commercial modules.

    I power the pcb by 12 volts.

    in the PCB, i need:

    1) nr 1 thermocouple K by max 31885

    2) nr 1 load cell HX711

    3) nr 3 sensor NTC

    4) nr 5 proximity inductive sensor 12 volt

    5) nr 1 flow meter

    6) nr 1 control nr 3 motor DC 12 volt and with acs 712 load a current

    7) some connector for digital inputs like a button

    8) nr 1 buzz (beep)

    9) nr 1 rotary encoder

    10) nr 2 ultrasonic sensor like HC-SR04

    11) nr 1 I2C 24LC256 eeprom for write and load variables

    12) some 5 volts and 12 volts output (300 mA)

    13) Connector for control nr 2/3 Solid state relays 220 volts 25 A

    14) Connector for control nr 4 Relays 5 volt 2 Amp

    a I2C connector for:

    1) nr 1 I2C lcd 16x2

    1) nr 1 I2C clock and calendar

    1) nr 1 I2C Wifi module

    I attach some circuit and document, but the are not complete or draw in a right mode.

    Dimension of PCB about cm 10 x 15.

    技能: Arduino, 电機工程, 电子, 微控制器, 印制板布局

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  • ¥20元 esp8266 AP web server using AJAX and Arduino

    状态: 未托管 关注: 截止交稿时间: 2019-02-03

    fr(中文版)

    Hello freelancers

    I need someone to create Arduino code for my latest project. The device measures current and voltage using the ADS1115 I2c ADC. I use this to work out charge in a battery.

    I currently have an oled display showing all of the values and also for calibration. I would like to remove the OLED and view it all from a web page. AJAX would be used as it is much smoother. The ESP would be in AP mode. The calibration values would be saved so they are not lost in a power loss.

    See link to youtube videos showing AJAX

    [login to view URL]

    [login to view URL]

    There would be two pages

    Display page to display the following values

    float Current;

    float Voltage;

    float Watts;

    float AH;

    float percentage;

    Setting page to display the following values

    float batterycapacity;

    float calibrationVoltage;

    float calibrationCurrent;

    float calibrationZero;

    技能: Arduino, 电子, 嵌入式软件, 微控制器, PHP

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  • ¥1000元 RESEARCH ARTICLES INVESTIGATION 2

    状态: 未托管 关注: 截止交稿时间: 2019-02-03

    fr(中文版)

    You need to investigate mathematical equations and implement them in any scientific simulation languages. If you are a post graduate research scholar then you are a good applicant. Need to study many theory and implement the mathematical equations

    技能: 电子, 数学, 矩阵及数学软件, 物理, 科学研究

    查看更多: research articles feature urdu language, articles web development can post comments, sport services research articles, research articles weddings, sample research articles dance, research articles 2000 words, military related research articles, summarizing research articles, research articles creative writing pakistan, vicodan addiction research articles, average rates word research articles, editorial proofreading research articles, employee turnover telecom sector pakistan research articles, i need five articles in 2 days, which information do you need to do market research, why do you need to do market research, what you need to start a research, write wh question to each of the following sentences 1 at first the internet was mainly used by scientists 2 you dont need a cd

  • ¥20元 Need a lab report writing (Electronics) 030219

    状态: 未托管 关注: 截止交稿时间: 2019-02-03

    fr(中文版)

    I have results with me and need a simple lab report. Please bid only if you can start work now and only if you are experienced in this field. Budget is not big, but its worth it

    技能: 电機工程, 电子, 工程, 机械工程, 报告写作

    查看更多: power electronics lab report, need someone write physics lab report, need cdr report writing help, i need a report writing, lab report writing service, writing lab report and scientific papers, basic need to know progress report writing ifnfo ngo, chem lab report writing service, i need a report writing in hindi urgently, i need a report writing on social evils, i need help in writing a report, i need help with writing a praise report, i want to write a report writing but i need topics which contains two parties, online lab report writing service, report writing on need assessment concerning kitchen gardening on a dry area samples, what is the primary purpose of writing a lab report, writing a lab report, Electronics report writing, I need a python expert for my multiple projects. If you have knowledge please bid.

  • ¥20元 Need a lab report writing (Electronics)

    状态: 未托管 关注: 截止交稿时间: 2019-02-03

    fr(中文版)

    I have results with me and need a simple lab report. Please bid only if you can start work now and only if you are experienced in this field. Budget is not big, but its worth it

    技能: 电機工程, 电子, 工程, 机械工程, 报告写作

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