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    31,718 lithium ion battery charging circuit schematic работ(-а,-ы) найдено, цены указаны в USD
    Multiple ESP32 Arduino comunication -- 2 2 часов(-а) left
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    I need to comunicate up to 32 nodes (esp32) to a single station / root (Esp32, Rasp what ever you recommed me) - Expected range: ~150 meters - I have preference to use esp32 features (esp now - esp mesh) - Lora or 433/868Mhz is discarded due Duty Cycle - Root will broadcast a 2Kb message every second - Nodes will send 200bytes message to root every minute or less (need ACK, message must to be...

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    its a public information system project. I require a circuit design for the controller which can save data thats created from windows software thats in .chm format and send that data to led board. controller also has gps for route announcement. arm processor, stm, lpc processor are used in this project. if anyone from Bangalore please mention in proposal.

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    Custom Raspbian OS Завершено left

    We are implementing a project running on Raspberry Pi Zero W ([войдите, чтобы посмотреть URL]). We chose this model because it comes with wifi and bluetooth. All this project is designed to do is display an image or a looped video onto the connected display. OS Customizations Needed: 1) We need a custom boot screen that will play a video (example: [войдите, чтобы посмотреть URL]). Once the OS loa...

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    DECODE369 Private Limited is a BPO/KPO and Managned Services Company. We are looking for BPO Campiagns Expected Projects: Data-Entry, Data Processing, E-Book Typing, Excel Formating and Tier 0 Suppot/Help Desk Bidders are requested to post there Process/campaign information. we are not entertaining Middleman or Consultanting Charging or Upfronts, only companies are welcome, genuine and long te...

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    I'm trying to create a 400 amp inverter welding machine, and may be using 4 aluminum electrolytic capacitors in parallel to provide the power(or whatever is needed). Main voltage is 120vdc. I need to know what size capacitor do I need and how large of mosfets do I need to get the job done? The reason for the mosfets is, in an inverter welder the capacitor bank is hooked up to a series of mos...

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    I'm trying to create a 400 amp inverter welding machine, and may require 4 aluminum electrolytic capacitors in parallel to provide the power(or whatever is needed). Main voltage is 120vdc. I need to know what size capacitor do I need and how large of mosfets do I need to get the job done? The reason for the mosfets is, in an inverter welder the capacitor bank is hooked up to a series of mosf...

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    1. Please see attached PDF for Schematic & Board Mechanical requirements. a. NOTE: We’ll solder on/assemble the two edge connectors at our facility. b. The Connector GC283 only has 3 active signals (B, E, A) that we will solder to the board via 3 plated holes. 2. Class-II IPC

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    We are looking for somebody with access to a 3D printer and the ability to build a small electric circuit containing a piezoelectric buzzer, so that the different design options can be tested for loudness. We would prefer a small, stand-alone circuit with a CR2032 battery, but are open to using an Arduino. You need some way to control the buzzer to play a note at a given frequency, so that we ca...

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    Hello, I need Schematics and PCB files to small switching power supply with 1 input and multiples outputs: Version 1: Input: 220v AC Output A: 12v 3A DC Output B: 5v 3A DC Output C: 9v 3A DC Version 2: Input: 220v AC Output A: 12v 3A DC Output B: 5v 3A DC Output C: 7v 3A DC

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    I need to draft and finalize a counter suit claim for my business to any employee. I am uploading the initial complaint now for your review. I want to counter sue, and need the documented drafted and edited for legal terms.

    $143 (Avg Bid)
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    I need to comunicate up to 32 nodes (esp32) to a single station / root (Esp32, Rasp what ever you recommed me) - Expected range: ~150 meters - I have preference to use esp32 features (esp now - esp mesh) - Lora is discarded due Duty Cycle - Root will broadcast a 2Kb message every second - Nodes will send 200bytes message to root every minute or less (need ACK, message must to be recieved) - N...

    $169 (Avg Bid)
    $169 Ср. ставка
    4 ставки

    We need to optimize our design for mass production. We have fully tested BMS power board(160x130mm). You should change some connectors into Molex type, combine some connectors, optimize board size, which means that you don't need to work on schematic but you should modify PCB layout and update BOM file. This project is kind of urgent, I'm hiring someone in 24hrs and this task needs to ...

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    schematic drawing Завершено left

    i am erecting a "i♥️Ranau" statue. 3 ft height, 20cm width, total length of 10ft , font: american typewriter. the plan will be send to the manufacturer. Manufacturer prefer a cdr format.

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    Open a circuit Завершено left

    To open a 12 volt relay in a car from the usb cable charger from a phone in a car from the green or white wire when the phone is connected to the charger to open a 12 volt relay in a car.

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    Dear all, We are a supplier of solar energy in Sweden that focus on quality solar panels that can be mounted on top of roofs or integrated in roofs or facades. We that have seen that, within the sales process, qualifying customers and creating quotations take up a lot of time. That is why we want to create a tool that automates the first parts of the sales process. The end goal is to create a ...

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    MATLAB_support_04 Завершено left

    I have battery data, WE need to generates some plots and copute electric vehicle performance by plotting data from given fie We may need to do some unit conversions, power estimations

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    FIRST QUESTION: I have some issues with the character 巿 ! It has 4 strokes, I do NOT mean the similar looking character 市 with 5 strokes that means "city"! I also know it refers to some sort of ancient clothings, and I trust this translation, so that's not my problem. However, I also can find another translation for that 4 strokes character, it says: "revolve, make circuit, t...

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    Content Writing - Car Charging Завершено left

    Re-write three articles on car charging. Links below: [войдите, чтобы посмотреть URL] [войдите, чтобы посмотреть URL] [войдите, чтобы посмотреть URL]

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    Esp based multisensor pcb design Завершено left

    Thank you for your interest in my project. Esp based multisensor pcb design I'm looking to build a product, from electronics design and manufacturing. I'm looking for engineer who can lead this project and help me though the process. Requirements - Esp8266 - Micro usb power and programming - Cp2102 usb serial - Bme280 temperature humidity - i2c - Am312 motion - Bh1750 luminance - i2c -...

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    Bobsvumeter Завершено left

    Looking to Get the necessary Gerber files schematic and board design to upload to a PCB print company for boards

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    A consultant with experience in writing a Risk Management File according to ISO 14971 for a hand-held, battery operated consumer device.

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    I need someone to help me design a prototype for an idea I have. It's basically a GPS tracker. I would like to understand the list of components needed to build one standalone tracking device using GPS (Preferably European Galileo). I don't mind the design looking like a mess, as long as all the components required are there, and that it can be used independently (battery operated). Id...

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    Power electronics Завершено left

    The aim is to design and simulate a h-bridge inverter circuit with real devices,optimised for a unique set of device parameters.

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    BLE stm32 esp32 firmwares Завершено left

    Server based on stm32f429zit + esp32 only as a BT tranciever Read BT air and call external function when devices state chenges Send command from external source to devices (see in dev func) BT dev #1 stm32wb55 magnetic sensor smd button for tamper Broadcasting to the server magnetic sensor state, button state, battery level BT dev #2 stm32wb55 2 push button 2 relays Broadcasting to the server ...

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    Design circuit which is able to charge 1 – 4 batteries safely (Over charge and discharge protection) Output 3.3 and 5v at .5 amps Input 5v Battery charging 18650 cells (1 - 4). Id like all the above development done in EasyEDA. Thanks

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    We have a few VM's which we use to browse on web. Some of the websites are checking the browser fingerprints to detect if this is a real device or not. We want the VM to be detected as a regular Laptop. Willing to have an .exe / .bat file, with a config file which will create the following devices : - Several Audio Inputs/Outputs; - Battery Emulation ( with random currrent capacity ); - W...

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    Altium PCB Designer Завершено left

    I need Altium PCB Designer and 3D view as well in PDF format. I already have schematics designed in pdf that schematics must be converted in PCB. along with it some modification and circuit designing if required in future. Please place bid only if you are expert in Altium PCB Designer and 3D. thanks.

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    Project for Indir O. -- 2 Завершено left

    hello, i have a schematic that need to be extended a little and make PCB design. Do you have time to do that ?

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    1 ставки
    Project for Junaid A. Завершено left

    hello, i have a schematic that need to be extended a little and make PCB design. Do you have time to do that ?

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    I'm developing an art project that involves basic sensing of water levels, and I'm looking to speak with an experienced engineer about using water as part of my circuit. Ideally the candidate has experience with creating sensors that interface with liquids, and has knowledge about rates of electrolytic erosion in different metals.

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    Project for Ou R. Завершено left

    Hello, I'm Irakli from Country Georgia, I'm going to buy multiple kind of products from china and need help about it, looking for good partner who can guide me and help me and my business grow, I'll buy cosmetic jars and some cosmetic products, phone accessories, elecric li ion batteries and e scooter parts. and I want from u fixed price because I'm just beggining this busines...

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    1 ставки
    I need a screenshot changed Завершено left

    I lost ion a gaming match, and I need the score switched from them winning 6-5 to us winning 6-5

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    We have a project that we expect to use a Nuvoton NUC240VE3AE microcontroller on (The system requires 5V). We want to create a MSD (and perhaps VCOM) driver so that files are presented to the target system. The files will be created by reading an EPROM. The EPROM will be looked up from a list of known Checksums and an appropriate file presented to the host system. a Configuration of the device can...

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    Robotic injection tool needed Завершено left

    A small tool with a mini actuator That will hold a standard 3ml syringe that’ll clip in and with a draw back button and Inject button slow working but strong and battery operated

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    I need an electrical engineer that can design a DC Voltage and Current Sensor Basic Requirements: 1. Continues Amp = 5A (10A burst?) 2. Max Voltage: 65V 3. Make design easy to change parameters to allow lower or higher voltage reading 4. Sensor Output (3.3V max) must be Analog so that I can read it with arduino or teensy board 5. LOW NOISE (this is important) and VERY ACCURATE PCB Schematic mus...

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    PCB design on Eagle Завершено left

    Take 3 Eagle board and schematic files, combine them, make a nice layout and connect some pins together to make it all work. Should be simple given that I have the Eagle files for you to use.

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    Website Graphic Design Завершено left

    I've got 2 websites that I need occasional graphic design for banners/images on the sites. Right now I only need 3 images to get one website launched. 1x Banner 2x Smaller images Sizes and screenshots are in the files of what is needed. Banner I'd like to incorporate the charging logo (green one) with some of the various collection of cables/accessories like included in copy of image....

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    I need a PCB designer Завершено left

    Hi, I'm searching for a PCB designer who could develop a simple and easy printed circuit for a Raspberry Pi 3 A+ with some components like 2 relays, GPIO input and more stuff. Thanks

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    PSCAD Breaker Model Завершено left

    I need a PSCAD breaker model. I need do a library as a PSCAD schematic. The PSCAD schematic model should generate the same results of the PSCAD VCB model.

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    Gaming Keypad & Mouse Designing Завершено left

    New Design gaming keypad + mouse.(Picture attached) Step #1 – Design the Circuit Schematic Step #2 – Design the PCB Layout Step #3 – Evaluate and Debug the Prototype Step #4 – Program the Microcontroller Step #5 – Design Computer Software/Program for Keypad and Mouse buttons remapping. Step #6 – Provide working prototype.

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    electric wiring diagram Завершено left

    AutoCAD wiring diagram of circuit

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    I need a tech drawing of a 110x45 mm. platform in boxform ( 18 mm. high ) with water resistant (O-ring) lid, containing space for one holder for pcb ( 40x40 mm. Place for a mechanical motion sensor ( SQ-MIN-200) on PCB, containing space for 2 pcb 15x40 mm. digital connectors pcb to pcb) and AA battery holder.

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    Hello Freelancers, I am looking for an adhesive removal electric Pen with a chisel to heat the device for 120 degrees. Here are the features I am aiming at-: 1. Mobile phone LCD screen OCA glue remover. Easy to clean, does not hurt the screen, more convenient and safe. 2. Made from qualified material, it is reliable and durable. Designed to remove oca glue on LCD screen. 3. With professional oca...

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    Hi, I need help and advice with a DC-DC converter (Low Power <1W). Convert 15VDC (Vmin = 9.5V, Vmax = 22.5V) and typical 52mA (Imax = 60mA) to 3.3V and up to 120mA. Need a schematic solution, a prototype and a solution for high volume production with recommendations for cost effective components. In addition, there need to be a low pass filter as the source 15V also carries a signal of 1200...

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    Build a PIC Program in XC8 Завершено left

    So this project is only for some very serious Embeded system developers it involves programing of a PIC micro controller specifically PIC16f505 in C language prefered however can also be done in ASM but C would be preferred. Attached here is a picture of wiring diagram for the PIC16f505. the process is to be followed according to the circuit is:- 1): Once the device is turned on the LED_1 is on ...

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