37v lithium ion battery charger circuit työt

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    26,210 37v lithium ion battery charger circuit työtä löytyi, hinnoittelu EUR

    Minulla on edelliseen projektiimme liittyvää jatkuvaa työtä 'Ruuhimäki Circuit Logo desing'

    €16 / hr (Avg Bid)
    €16 / hr Keskimäär. tarjous
    1 tarjoukset

    Android/IOS Design App Lifepo4 Battery APP is already programmed need only cool design We have programmed Android and IOS APP for Lifepo4 Batteries who connect over Bluetooth and have regular design. We want to have a unique design for our APP APP IS ALREADY PROGRAMMED AND WE ONLY NEED A DESIGN NOTHING MORE

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    5 työtä
    circuit and signal 6 päivää left
    VARMENNETTU

    I need help with solving circuit problems

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    9 tarjoukset

    i have a circuit diagram, a bit complex. i need it redesigned right now. If you can do in one hour or less, right now, let me know. its just one image. i will pay 2$ maximum for this.

    €6 / hr (Avg Bid)
    €6 / hr Keskimäär. tarjous
    6 tarjoukset

    It is necessary to develop a connection diagram for the speed controller for connecting and controlling without collector motors (2 motors from one arduino board). It is necessary to write a stack for synchronous control of motors, switching the power supply of the circuit from batteries to the current of its own generation, polling the speed sensors, air flow rate and outputting the received data...

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    redesign an image to save from plagiarism 6 päivää left
    VARMENNETTU

    i have a circuit diagram, a bit complex. i need it redesigned right now. If you can do in one hour or less, right now, let me know. its just one image. i will pay 2$ maximum for this.

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    14 tarjoukset

    I need single line diagram for back up power system to power esp32 by battery if the main supply switch off. I need single line diagram with items name and numbers.

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    4 tarjoukset
    Build me a PCB 6 päivää left

    I need someone to complete my circuit design and get it ready for manufacturer (PCB). I have used Arduino Nano to develop the project, but I want it to be replaced with a suitable microcontroller (likeATMEGA328). The final board must be programable or has an ISP connection for programming (through its miniUSB). Sensors and vibrating motors are not on the board but connected by miniature connectors...

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    54 tarjoukset

    Hello, I'm a DIY'er working in the construction industry as an electrician and project manager. In the process of installing an off-grid, battery back up, whole house inverter system and building my own 48V LiFePO4 battery pack, I discovered that the Battery Management Systems (BMS) available currently are really lacking or are VERY expensive for the better products. I believe an opportu...

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    24 tarjoukset

    Power module for mobile robot. Charge and monitor Li-ion 6S. Monitor input, bat, output voltage and current. Input voltage 25.2, output bat voltage and 19V. Monitor temperature. Power on switch, On/Off signal LED. Arduino based. EasyEDA schematics and PCB.

    €407 (Avg Bid)
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    13 tarjoukset
    Trophy icon business logo with vector files 6 päivää left

    Looking clean, simplistic business logo with scalable vector files, to use on our website, print, and various other promotional areas. The company name is Cyber Landlord and is a digital marketing company. As far as the logo is concerned we like the way a circuit board looks like a satellite image of a city from above. We like very much the neon blue and green colors as both are fairly representat...

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    Hello, I need help with my circuit analysis homework. Can we talk about it?

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    Howland circuit 5 päivää left

    For the Howland circuit, shown in Figure (1), find expressions for the Op-Amp output voltage and the load current, as functions of Vs and the resistors network.

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    Need someone who knows Circuit Theory subject.

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    15 tarjoukset

    1)Need the circuit design in kiCad 2) all parts in pcb should be listed by digikey or furnell uk or ali express 3) transformer should be ready made ... no hand made transformer

    €167 (Avg Bid)
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    15 tarjoukset
    PCB Designing 5 päivää left
    VARMENNETTU

    I Need a PCB to distribute Power output. The features are below. *It will act as a charging circuit for devices like iPhone, iPad, pencil, watch, laptop, and LED Screen or strip *The PCB is connected by a 20000mAh Battery at the input. *The PCB can manage power output to any of it's charging connection, (For Example- If we want to turn off one connection or more can perform it without disc...

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    8 tarjoukset

    Power supply design for Wifi Operated LED bulb with ESP8266 wifi module, Basically it will be combination of LED driver and Power supply for wifi module. Also, i need a Custom design of LED MCPCB with 5050 SMD RGB led. Only reputed agencies to apply, with previous experience in designing such a thing.

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    6 tarjoukset
    €1 / hr Keskimäär. tarjous
    6 tarjoukset

    RF circuit design task Need expert from electronic and communication engineering that can do Advanced Design System

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    12 tarjoukset

    We are looking for circuit designers in the following fields: 1. Analog and Digital Circuit Design 2. Solar and BMS charging circuit design 3. Power Electronics- Led Driver Circuit designs 4. Raspberry Pi, Arduinuo and Jetson Nano Please apply if you are having experience in any one of these. Please put Circuit on top of your bid so that I know bids are not just Spam Only Indian Freelancers

    €264 (Avg Bid)
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    24 tarjoukset
    Circuit Schematic and BOM Validation 5 päivää left
    VARMENNETTU

    I have four relatively complex circuits (100 to 200 components each) drawn up as schematics. I need a skilled electronical engineer to carefully review these documents for accuracy and completeness. There is no actual design work needed, just validation of existing designs. Additionally, once the schematics pass inspection, I'd like validation of the bill of material (BOM). Ultimately, I...

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    34 tarjoukset
    App and Hardware For software like LIME 4 päivää left
    VARMENNETTU

    Hi, I'm looking for somebody to help me build an asset sharing company along with hardware that integrates with the item being shared. EX car to go LIME BIRD Here's a link for what the app needs to be able to do [kirjaudu nähdäksesi URL:n] If you have some ideas on the hardware side of things I'm thinking of something simple like a digital battery cut off tha...

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    5 tarjoukset

    project need simulation and circuit diagram. no live build necessary,but it should be for 24v lead acid battery

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    2 tarjoukset

    Hi, we looking for someone who can do these tasks 1. Solve simple/complex problems which has R/C and with Voltage/Current Sources in circuits 2. Simulate all circuits and verify results in LTSpice-Tool 3. Create engaging document(PPT) which explains solutions to all the problems 4. Good at circuit design 5. Open for learning and multiple corrections Number of problems can be approximately : 15-...

    €29 (Avg Bid)
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    6 tarjoukset

    I have a project on Arduino (exapmle Mega 2560 ). The Arduino should act as a cash receiver and send exactly the amount that I deliver via Bluetooth to the balance. I have a working code, but it only works on a few coffee vending machines. Where it does not work, it blocks everything with one code: #define CSH_ACK 0x0100 // Acknowledgment, mode bit set. I also have an insulator circuit. The f...

    €103 (Avg Bid)
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    8 tarjoukset

    Hi I need to design a schematic for the power supply in Eagle. Hot swapped battery concept. Cannot pay more than the budget. I need all the libraries and all the components should be properly labeled. Let's talk.

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    7 tarjoukset
    build me an electronic curcuit 4 päivää left
    VARMENNETTU

    i need to design a circuit where air flow sensors and air flow regulators are used ..

    €86 (Avg Bid)
    Salassapitosopimus
    €86 Keskimäär. tarjous
    5 tarjoukset
    Need an android app 4 päivää left

    Am a power engineer and need to communicate with my power equipment at site using smart phones. In need of an app that can, (1) automatically restart my phone when the dead battery charges again. (2) automatically connect my phone to caller line after 5 sec of ringing. (3) only recieve call from assigned numbers.

    €115 (Avg Bid)
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    2 tarjoukset

    We currently have a circuit board in the design phase that will be used for Windows based computers. We need a developer to create a BIOS for the boards.

    €21 / hr (Avg Bid)
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    1 tarjoukset

    You must live in.... Brasil, Colombia, México, Argentina Chile, Uruguay, or another country in Latin America ✻ OVERVIEW ✻ You do *not* need any experience. You do *not* need an Arduino. You do *not* need an ESP32. I estimate that you will normally work 1 hour/day. I will pay you hourly via Freelancer. I presume Freelancer will deduct their 10% fee. You will normally work 20 days/month....

    €10 / hr (Avg Bid)
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    14 tarjoukset

    I need schematics and a PCB with a ESP-WROOM-32, a USB to serial chip (CH340C), and voltage regulator (RT9080-33GJ5). Additionally, I need the board to have specifically space through holes for a PIR sensor, with a resistor between the data and ground. I also will need through holes for soldering battery wires. I am more than happy to describe our needs more clearly as well as provide a PDF copy o...

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    7 tarjoukset
    Product design and rendering 4 päivää left
    VARMENNETTU

    Make design and rendering for a modular battery wall system, such as enclosed sketch. 1) metal plate on which 1 inverter, 1 communicator, 1 AC switch box and upto 6 battery packs (2,5 kWh) can be mounted. 2) metal plate on which 1 inverter and 2 battery packs (2,5 kWh) can be mounted. We indicate the specific colour and write a more detailed product description and task. We need +- 6 rendering...

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    48 tarjoukset

    We are looking for an expert specialized in piping and automation to design and model the pipes and electronics pieces of our container farm. There will be 3 parts of this project: 1) Research and Analyze the concept, understand how the piping and electrical systems will work 2) Create the piping diagram and circuit diagram 3) Add piping and automation into our existing Solidworks 3D desig...

    €1754 (Avg Bid)
    Salassapitosopimus
    €1754 Keskimäär. tarjous
    20 tarjoukset

    You must live in... Brasil, Colombia, México, Argentina, Chile, Uruguay, or another country in Latin America. ✻ OVERVIEW ✻ You do *not* need any experience. You do *not* need an Arduino. You do *not* need an ESP32. I estimate that you will normally work 1 hour/day. I will pay you hourly via Freelancer. I presume Freelancer will deduct their 10% fee. You will normally work 20 days/month...

    €11 / hr (Avg Bid)
    €11 / hr Keskimäär. tarjous
    39 tarjoukset

    RF circuit design task Need expert from electronic and communication engineering

    €106 (Avg Bid)
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    10 tarjoukset
    Fix ionic 4 nav menu 3 päivää left

    I have a ionic 4 with angular project that is broken in ios. for some reason after the login page the new view is not show properly and the login view stay in front of the new page. I´ve noticed that the ionViewDidEnter event is not trigger I prefer if you can fix it accessing my mac with teamviewer: the problems is in a tab menu, when I remove it works fine. <ul id="menu-modu...

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    I need an electrical circuit to be design. This electrical circuit is for the purpose of testing all different light bulbs with deferent bases, except the fluorescent. The entire electrical circuit has to be operable with the dimmer switch to determine whether each bulb is dimmable or not. The testing station has to be portable and comes with trays and compartments. The electrical circuit has...

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    KIOSK APP NEEDED 3 päivää left
    VARMENNETTU

    I need an application, for display of smartphone and tablets [mdm + digital signage], that allows the users of the device only to see a promotional video (that can be changed remotely), use the camera and that when touching the screen, it appears in the foreground a web-app. (Allow from the command center, add a URL and that the device immediately sends the person there when touching the screen) A...

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    The ACS770 block supplies an alternating analog signal as output. This output from the ACS770 is to be converted into a static analog signal in linear dependence on the existing current flow in the contact connections of the ACS770) so that it can be read directly into an analog input of the PLC or microcontroller. The existing print design should be supplemented accordingly and the modified Altiu...

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    16 tarjoukset

    I have a PCB designed in Altium that charges a 3.7 v Li-Po battery and then provides power to a 5V fan. The battery is 500mah capacity and takes 2 hr to charges. I need a designer to change the circuit so, that the same battery can be charged in 1 hr.

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    6 tarjoukset

    voltage and term potential difference are often used interchaneably. potential difference might be better defined as the potential energy difference between two points in a circuit. The amount of difference expressed in volts determines how much potential energy exist to move electrons from one specific point to another. The quantity potentialy how much work, potentially, can done through the ci...

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    6 tarjoukset

    - Protos/eval units are tested and shipped on time. Design files are checked-in to repository, Test reports are prepared and reviewed, Defects are updated in Jira - Engineering Samples Protos Support - Hardware boards bring-up, building proto units, HW and System verification testing for supported configurations - Update sensor boards designs (Altium designer) based on inputs from testing, variou...

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    Trophy icon logo designer 3 päivää left

    need a logo for a martial arts circuit based class called "combat circuit". basic sharp logo in black and red or silver coloring and maybe a fist replacing the "o" in 'COMBAT' but open to other designs. The words need to be clear but needs something else descriptive, eg "fist"

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    1204 työtä

    Greetings I have an urgent project where I have to translate a manual for a USB wall charger from English to; Finnish German French Spanish Italian The manual is standard and consists of ~450 words. You are expected to have experience in technical translation work.

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    I have a working ESP8266 WiFi with a load cell as my sensor. I need it to work on battery. When i connect the battery, it dies after 1 week. Same for when i use Uno with LoRa. I tried to use the deep sleep function, but its not enough to make the battery last more than 1 week. If you know how to make this work for at least 3 months. please let me know.

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    9 tarjoukset

    NOTE: BECAUSE OF ITAR ISSUES - ONLY AMERICAN BIIDS WILL BE CONSIDERED. Need an adapter circuit that will sense the apogee deployment event from any amateur rocketry dual deployment altimeter on the market and use it to drive a micro actuator. The micro actuator will extend to release a mechanical trigger - then retract to home position after a given number of seconds. The micro actuator must ...

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    Trophy icon Orange and black logo 3 päivää left

    I need a orange and black logo for “E Bike Battery Handle” I attached a picture of what it looks like. I will pay fast and give a 5 star rating. Thank you

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    Home security app 3 päivää left

    Its a home security project. I am reposting the project with better details so I can get more accurate proposals. Experience working with hardware like microcontrollers and building its software on mobile will be a very big plus. Please elaborate on this point if you have prior experience. Thank you and sorry about the reposting. 1. Ability for the users to register from the mobile app. 2. Abili...

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    hi i need a clear code to count rpm from engine (from the spark plug cable or fuel inyector) its going to be part of a longer code so no "delay" functions. also shematics of circuit if needed. engines go up yo 16,500 rpm to be used with nano

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