37v lithium ion battery charger circuit jobs

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    21,923 37v lithium ion battery charger circuit jobs found, pricing in USD

    I am looking for someone with USB protocol experience to write a small program which can be merged into my existing Arduino/Atmel source. I am new to the USB protocol and not having much success finalizing this portion of the code. Specifically, I am having trouble resuming USB communication after the chip is put into a low sleep mode whilst simultaneously running from a Li-Po battery source, and...

    $38 (Avg Bid)
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    This project is for a compact human motion detector using PIR sensors for detecting when someone has gotten up from bed or is in danger of rolling off the edge of the bed. The recommended design is using 1 PIR sensor at the top for detecting sitting up, 1 PIR sensor to detect falling off the left side edge and 1 PIR sensor to detect falling off the right side edge. A receiver box will receive a ra...

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    Hello guys, I have many YouTube channels for which we need logo around 25 logos We need logo for mobile battery selling companies Payment - 12$ per logo But we need first logo as a sample (not paidd,) You need to send logo without watermark for sample, once we see sample logo is up to the mark then after, we will create milestone for next logos but first logo is not paidd then only bid thanks

    $274 (Avg Bid)
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    29 bids

    Hello guys, I have many YouTube channels for which we need logo around 25 logos We need logo for mobile battery selling companies Payment - 12$ per logo But we need first logo as a sample (not paidd,) You need to send logo without watermark for sample, once we see sample logo is up to the mark then after, we will create milestone for next logos but first logo is not paidd then only bid thanks

    $305 (Avg Bid)
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    25 bids

    Design battery management circuit ,very low voltage

    $165 (Avg Bid)
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    20 bids

    Hello, I am looking for some proven to sell e-books for Smartphone Niche including the sales page. For example: - How to keep your phone safe - How to protect your phone from being hacked - How to make your battery last longer - DIY guide on how to fix your screen, debug, etc.. Language : French or English

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    Hello Urgent requirement of circuit design and analysis project to be done by 17th July . apply asap if you are ready to start immediately

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    We are looking to fix our application bugs and add additional features: Bugs: High priority – Must be completed in 5 days. 1. Computer Login. When using the login name and password to connect to a computer, and after sending the data the first time, it doesn’t connect to the folder anymore. 2. Computer Login. Cannot connect to computers with a domain. 3. Computer login. Cannot delet...

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    What I want is a simulation(proteus, matlab). It can be divided in to 3 part or more. 1: Solar energy is converted into electrical energy to supply large battery energy storage devices then supplying 230V AC 2: Substation's electrical energy converted to 230V AC 3: compile code by using a microcomputer like Arduino Programming software(MPPT method=Perturb or observe or Incremental conductance...

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    MCS Rebrand 5 days left

    I would like someone to take on the entire project in increments. So I pay one increment at a time at say $20AUD each time approx. Happy to pay for the quality. Would like to see a watermarked image in advance. $22 USD each incremebt x 8 $176 USD. 1. Main Logo (With MCS "mint car solutions") 2. Two minor logos (MCS Batteries, MCS Rental Vehicles) 3. A document letterhead 4. Design for ...

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    We need computer repair technicians/specialists to do on-site PC repair services in Jakarta. As part of this project, freelancer needs to take following steps: - Call the customer and agree on a schedule when you would visit client location - Visit the location which could be 15 - 20 km away. Freelancer to use his own conveyance - Deliver the on site work [ could be 2-3 hours ] -...

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    The car runs on 6.4V battery. It is all wheel drive car - all four wheels turn when throttle is pushed to drive forward or backward. There are two motors that allow to achieve this, one is located at the front of the car and the other one is at the back of the car. These two motors work fine and there is no issue with the the forward and backward movement. The problem is that the steering wheel o...

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    I have an app that streams video from an Android device to an iOS device via WebRTC. What I am looking to do is to add a RTCDataStream to it to telemeter data from the Android device (like GPS, video parameters, battery parameters, etc). As an expert, I think this should be very straightforward.

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    Looking for a graphic designer who can work with a new software called Famous from famous.co. Helpful to know Sketch and Photoshop or some other graphic software where thee are layers to create. If you enjoy working from your home and have high speed Internet and you are ok with flexible work hours and can read and write English or French reasonably well; Est-ce que vous lisez et écrivez ...

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    pease bid only if you are in maharastra (india) circle. i need hardware as well.

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    I would like a field deployable data acquisition system (preferably using something simple like arduino) that will record a fluxgate magnetometer for days in the open air. If you want to look it up, this will be used for geophysics, one use will be to be a base magnetometer, which will remove for the magnetic changes due to solar storms and the second will be to record magnetotellurics, which can...

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    Touchscreen Countdown Timer 4 days left
    VERIFIED

    I'm working on a prototype for a project and I need to source a circular LCD/OLED (or similar) countdown display timer - see the attached rough sketch. The timer must only countdown days automatically, not hours, minutes or seconds, and be operated by a battery that you would get in a digital wristwatch or car key fob. It needs to be simple and basic in its functionality. If I want to set t...

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    To design a 3 kva grid interaction hybrid pure sine wave inverter with PCB, firmware design and microcontroller codes development work. The inverter should have solar, battery bank and grid are the sources.

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    Hi, 1. I want a professional engineer to design a battery charging circuit with all the protection circuits (overcurrent, overvoltage, overdischarge, cut-off, shortcircuit, etc). 2. Kindly check the attached file(fig-1), (fig-2). I have different excitation methods for piezo resistive sensor. Which one is stable and long term stability. If you have any other ideas, kindly share it. 3. I would to ...

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    Build a PCB 4 days left

    I need a LED matrix PCB done with RGB, it must be controlled by Xbee and Arduino. I have done an initial layout. There is not much work left beside to check the circuit and intrgate the pins of the arduino and xbee as well and check the circuit is complaint. I will need the eagle schematics when done.

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    LTspice circuit 4 days left
    VERIFIED

    I need to do an LTspice circuit

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    We sell Electrical automation products including, WiFi Circuit breakers; RF Wireless light times; Wireless Water heater Controllers; etc.... We are looking for someone who has solid online experience selling electrical equipment who is able to list our products on various online platform in Canada, USA, North America, Middle East and Africa. The main payment will be commissions of up to 20% of ev...

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    ADXL354 MKR1000 3 days left

    The Brief Equipment Mkr1000(Arduino) Ads1256 (Texas instruments) Outcome required Ratiometric analog to digital converter ADS1256 will send SPI protocol data to MKR1000 and can be recorded from a uart connection from the MKR1000 to a PC. The sample rate must be variable but will need to also be able to reach full speed of the ADS1256 which is 30Ksps and will be required for 4 channels of input fro...

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    Trophy icon Logo for Next-gen Robotics company 10 days left

    Mobian Dynamics is a new company out of Melbourne, Australia. We are a tech startup looking to bring dynamic automation to industry verticals. We make mundane processes easier through AI and smart electronic control systems, along with an intelligent orchestration layer for complex systems. Work with us to build a logo and branding scheme that shouts "next generation dynamic automation&quo...

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    Guaranteed Sealed Top Contest
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    279 entries

    I'm looking to design a prototype for a smart device that i would like to patent and sell. I first need to develop the device. The device would need to an instrument to either make a liquid measurement and/or take the weight of the over product. The device would also need to report back the battery life. periodically. Each measurement would need to come online and post to an api for data ...

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    A variable DC input battery bank 24 v to 400v DC input to constant output 415v, 50hz, 3 phase output grid connecting Inverter of capability 5 kva. The input source suitable for battery bank and or solar of variable input

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    I have a project involving GPS trackers for elderly. Will like app built to monitor these devices and become an interface for changing parameters

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    Hi, I need to emulate a crystal oscillator circuit (attached) based on wave digital filter (WDF). Basically we aim to have WDF emulation that match a Spice simulation (e.g. in Cadence). I Already have the circuit simulated in Cadence (the output attached) . Attached, my circuit (Crystal Oscillator) schematic that needs to be mapped to WDF along with its output waveform, you will notice that there ...

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    I have a machine use for test PCB(Printed Circuit Board). Now, machine is running on old technology in WinXP. I want someone who can develop software for my machine using RPA or python technology.

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    I want to design a ultra compact 6A 80W Li-ion charger. A power electronic expert with minimum 6 years of experience is required

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    24 bids

    PLEASE, for the love of god, read through the description. This is a very specific niche! The client's website is [login to view URL] Feel free to browse through their blog at [login to view URL] to see the kind of topics we generally cover. This is a technical subject so we'd strongly prefer someone with a suitable background. We're hoping you'll be able to research and come...

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    The client's website is [login to view URL] Feel free to browse through their blog at [login to view URL] to see the kind of topics we generally cover. This is a technical subject so we'd strongly prefer someone with a suitable background. We're hoping you'll be able to research and come up with title ideas. We're a little limited pay-wise, with the upper limit being 5-6 ...

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    Need reliable constant current LED COB and SMD driver circuit + PCB + Finally Manufactured for 100w, 200w, 400w and 600w. I wanted Mechanical Enclosures also designed for those LED. Description of Circuit + PCB + Testing + Manufacture: - You have to design separate PCB's for COB version and SMD Version - COB Version has 100w, 200w, 400w and 600w. - SMD Version has 100w only. - Both COB and S...

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    Need reliable constant current LED COB and SMD driver circuit + PCB + Finally Manufactured for 100w, 200w, 400w and 600w. I wanted Mechanical Enclosures also designed for those LED. Description of Circuit + PCB + Testing + Manufacture: - You have to design separate PCB's for COB version and SMD Version - COB Version has 100w, 200w, 400w and 600w. - SMD Version has 100w only. - Both COB...

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    Must be Sydney based I'm looking to develop 2 similar projects using a Raspberry Pi and looking for a programmer with experience with h.264 encoding, VLC, RTSP network streaming, Wifi configuration. 1. News Gathering system - RPi running Android Using a number of existing apps to stream HDSDI video over bonded 4G connections. I have this project already working with a Galaxy 8+ but the l...

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    Need a circuit for a bicycle tail light. Operated by one push button. Low battery consumption. Led Output max 1A 5 different flashing brightness & speed settings

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    I need some changes in already build circuit of device. you have to do circuit level programming and you have to change information.

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    Tanks Calibration System System Working: The Tank Calibration Unit constitutes of a Microprocessor to process all the data and simulate commands; powered with rechargeable battery, with minimum 12 hours backup; 2 line LCD to display both Level and Volume simultaneously; Keys (may be 4) to operate / configure it; one relay Output to control the pump; one Wireless module to communicate with Lev...

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    I need an Android app. I would like it designed and built. also i need with it electronic input circuit or use wifi or Bluetooth whichever. no problem. there are 4 switches. pressing one displays a different picture on the tablet

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    micro wi-fi camera 1 day left
    VERIFIED

    Hi, we would like to start to produce small cameras. Cameras should have maximum filed of view. They should be with "micro" size and weight. To have battery on board able to run it for up to 4 hours. To have LED lights. To have bluetooth or wi-fi. We think that use of omnivision CameraCubeChip will be ideal.

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    PCB design & Prototype 1 day left
    VERIFIED

    I want to design PCB, prototype the board with ESP32+LCD+Wireless charging circuit. Please bid only if you have experienced in these fields. I will accept only the PCB Designer & prototype expert in China.

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    search manufacturer 1 day left
    VERIFIED

    I want 3 manufacturing options in China of these measuring stations with unit price for 10 stations with the following features: wifi connection, rechargeable battery for usb and internal storage of information for 10 days.

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    I want 3 manufacturing options in China of these measuring stations with unit price for 10 stations with the following features: wifi connection, rechargeable battery for usb and internal storage of information for 10 days.

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    We require a video that will showcase our mobile application (it's an application for roadside assistance - towing services, battery boost/replacement, lock out, car wash, fuel delivery etc): I. BUSINESS PROVIDER/PARTNER a. How it will increase their profit in addition to their normal business operations b. Ease of Joining c. Ease of Use II. CUSTOMERS/MOTORIST a. Convenience of having an a...

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    I need someone who is well versed with STM32F4 series. I have to program a custom made PCB with an on board STM32F407VGT6 (100 pin package), the details of which will be discussed in personal chat with bidders. A similar type of PCB was programmed before this by my superior so some of the modules are already ready, and 2 others need to be programmed. For example: The ADC needs to work in simulta...

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    GPS Server Traccar.org 20 hours left
    VERIFIED

    We have a server that is from [login to view URL] and we have made a connection between this server and our loginportal that we are using for our clients to follow gps devices and itts working. There are only small thing that are nog working good like parameters of battery sensor and timezone between the server and loginportal. Only please someone with experience and done this before can reply ...

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    Pcb Design 20 hours left

    Product is minimum sized portable digital radio , Units to be inculuded are lipo battery (minimum 6 hours lasts ), battery charger , digital radio tea5767 , headset output , minimal chip which you offer (low energy consume is important), volume up , volume down , search up , search down , on/off switch , micro usb input for charge . Headset cable can be used as anten or anten out is pin out, store...

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    Want to make circuit with home automation light fr my house

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    Want to make circuit with home automation light fr my house

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    I need a writer 13 hours left

    We make quality battery charger and batteries for the vape industry. Now we need some minority language writers to work for us, such as Spanish, Italian, Russian, German, French and Japanese, etc. We will give you some keywords and the description of the products to you then you write an articles. Of course, pictures are provided. If necessary, we can send you a sample for reference. This is ou...

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