12v battery charging circuitpekerjaan

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    34,280 12v battery charging circuit tugasan ditemui, harga dalam USD

    1- Load akan dapat supply dari Grid pada pkul 10malam - 8pagi. Dalam masa sama, Grid Source akan charge battery sampai penuh. 2- Pada 8pagi - 10malam pula, load akan dapat supply daripada Bateri. 3- In case, Grid ada masalah antara pkul 8pagi - 10malam (waktu gris supply ke load), bateri akan automatic backup sehingga Grid ok, kemudian dia turn back pada Grid semula. *Battery tu mempunyai kapasiti tuk support selama 14jam (8pagi - 10malam). *nak bagi beza dngan video tu, klu boleh Grid dan Bateri buat series connection compare video tu buat paralel

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    Samsung Galaxy s4 superking V4 latest model with 8.86gb internal phone storage ram2gb 15.90gb brighter camera flash the same as ori!! AMOLED HD screen!! and hp is more spread out and hold events dimana2 place! SPED 4g internet! visit my fanpage - >> if u cans sale my items in 2 day. i will ...ORI, 2600MH POWERBANK FREE, FREE Postage IN MALAYSIA ONLY!! RM870 FULL SET. Read maximize: √ Android 4.2.2 (Jelly Bean) √ Air Gesture √ Air Browser √ Air Launcher-accept √ Air call-accept √ Motion settings √ S-Voice √ HD SUPER AMOLED Screen Size √ Speed ‚Äč‚ÄčInternet 4G (HSPA +) √ Video Call √ & Personal Wifi Hotspot √ Bluetooth √ Quad Core Processor √ Original Fit Case & Ba...

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    Automation of Fish farm 6 hari left
    DISAHKAN

    I am looking for an engineer to design a control panel ...future . We need to monitor temperature and oxygen levels in 12 tanks , nitrate levels in 2-4 areas of the system . Readings outside the norm to activate alarms . There are 2 pairs of circulating pumps -2 alternating pumps and 2 backup in case the first two fail . Pump failures to activate alarm . Also want to potentially control 12-15 valve actuators. Temperature monitoring to switch the heating circuit. We need the full schematics with identified components and completable software. Components to be used should be considered on the basis of cost , computability and ease of use , ability to extend . Will suit best engineer with fish farm experience or student with in-depth understanding of recirculating aquaculture aut...

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    Enhancements in EV Charging Station products. The project has already LIVE, but we need to change the new version by using new commands.

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    I have 3 businesses that are intertwined in the way they work. WHAT THEY DO: 1. ReSource Pty Ltd: This is the recycling company. It is focused on battery recycling and electronic waste (e-waste) recycling, specifically being a processor of e-waste and not just a collector/middleman 2. GreenQuip is an equipment sales company - it imports recycling equipment from Europe and China to sell to Australian recycling companies 3. RIT is a simple commodities trading company - it buys recycled material from Australian businesses and exports it to overseas buyers. HOW THEY INTERTWINE 1. ReSource uses high quality custom designed equipment to efficiently recycle materials 2. GreenQuip sells the same equipment to recycling businesses and uses ReSource equipment as the showroom/demonstration f...

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    Hi Jian J., I noticed your profile and would like to offer you my project. We're seeking urgent assistance with firmware development / patching. We can discuss any details over chat, or preferably via phone call. Our Budget is flexible within reason due to the nature & timeline of the work. I look forward to hearing from you!

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    Hi Taha M., I noticed your profile and would like to offer you my project. We can discuss any details over chat.

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    ...pressure switch. But unfortunately, I do not have enough knowledge about ESP32 WiFi myself and this is beyond my personal skills. How the pressure switch currently operates: - Pressure switch consists of the pressure plate and a tri-colour LED. - Switch connects to a mobile app via Wi-Fi SSID and Password (both are known) - The App displays the pressure switch’s ID name, IP address, MAC address, battery level, etc - When the pressure switch is activated (tapped) the LED changes colour and it sends data to the app I have built a simple sketch, via the Arduino IDE ESP32 WiFi examples, to connect to the pressure switch and successfully print the connection status and IP address to the serial monitor. Scope of this project: I need a simple ESP32 sketch that connects to the p...

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    The task is to design an RF energy harvester circuit for dual-band frequencies from GSM/900 MHz and GSM/18000 MHz using Keysight ADS software. It requires transmission line impedance matching and a rectifier circuit. The circuit will be fabricated later so layout design is also required. Please see the attached pdf for details.

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    ESP32 Functions Creator 5 hari left
    DISAHKAN

    ...point of sale. Like printers, barcode scanners, etc. I'm running out of time and I need someone to create individual functions and also put certain features together to to a final product. A function might be something like "Enable these three RGB LEDs so I can set them to any color at any time". "Broadcast bluetooth so new devices with authentication keys can connect and communicate" "Build a battery meter function" "Measure button press time and do X after 5 seconds, Y after 10 seconds" "Create a function so multiple devices can securely connect to each other via bluetooth" How this will work as example for the printer, you will hold the button for 10 seconds and then it will print out a QR code with authentication detai...

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    We need to extract Solar & inverter charging levels from a web page that requires a user name and password to access. We want to automate data collection process by executing the program ( something like python would be easy to use for us) from a batch schedule in windows OS. There are 5 values on one page to be extracted (see attached image). we would then have the data output to a text file (or maybe json) including these 5 values plus the date & time of the last successful extraction.

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    Looking for engineers and designers who can create excel spread sheets to simulate battery life and outboard power performance from existing Ansys chart output. Bonus for anyone with programming experience who can create a dynamic web form that will display various scenarios and outcomes.

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    Create the smallest possible drone It can fly for as little as 1 or 2 minutes or less I just want it to be as small as possible It needs to have a remote control and battery And the ability to fly up, down, left, right Other than that, I just want it as small as possible

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    IT'S NOT CREATING A WEBSITE!!!! We are a Company for Sport-Timing, specially for Equestrian- and Ski Sports. The software for Equestrian Jumping and Ski already exists and customer can look theyr results here: (Live Timing Equestre...discipline Dressage, Jumping and Cross and the Overview for "Eventing" - the user can see in the overview all results for Eventing and ranking - Some little extensions and cosmetic works... - We are the owner of the codes! - We don't pay any upfronts or initial costs - Please only real Professionals and full stack developer - Further Updates are guaranteed also for Ski Nordic, Multi-Sport, Circuit Pro and Rally Pro - Estimated time to finish this project: < 15h The uploader is written in C++ and the website is...

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    Electronic Design Engineer 4 hari left
    DISAHKAN

    We need China Based Electronics Design Engineer. Who has Experience on PCBA Design Product Circuit Design Prototype Development. Experience on Lithium Battery,Solar Charge Controller Development. Only Experience Candidates Required. Only from China required

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    I have a battery of drone footage that I have made with my personal DJI Air 2s. I need an expert in content and creation to turn my simple drone clips into cinematic videos.

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    ...per month is $14.99 (no-commitment), $12.99 (commit 3-months), $7.99 (commit year). - My Plan page. This is where logged-in users can upgrade/downgrade/cancel their plan. Should also have a place to update billing method. Decide if there needs to be a different design for those who are on the free trial and came to the website to upgrade to a paid plan. - Backend work includes signing up and charging subscriptions (payment gateway integration). - After a user signs up, they can choose the free trial or a paid subscription plan. - After a user logs in, they can access the My Plan page. Users here can downgrade/upgrade/cancel plans and update billing information. - Sign-ups and changes to the plan must be stored so that the app has access to that information. Their data is stor...

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    ...magnets when rotating (at a 29” tire at 10mph it will rotate 116 RPMs) to give the coil a gap to allow them to obtain maximum power output. As the coils obtain this power output it will be in an AC mode. It must be converted to a DC mode, then cycled into a PCB board to convert it to either charge a 48V lithium Ion battery (54.6V input) or 52V battery (58.4V input) with max AMP input between 2 AMPS to 5AMPS. This will have 2 mechanichal swtich to allow rider to pick which battery to charge while it is being ridden, so it will have a constant charge. The rotor on Flat Plat will be encompassed by a “U” shape alloy shell mounted to the frame of the EV and surrounding the Flat plat or rotor to maximize its power output. It can also be used on any pulle...

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    I need to hire a mechanical engineer to build me three proto type e bike switches to switch between 2 to 3 batteries and use either a nob switch or bottom . Which will lock the other batteries out when one is swutched on . Once one is depleted rider can switch to new battery . I need this done right away .

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    Project Jana 4 hari left

    GUI design PID control Battery and charging Wifi and Bluetooth model

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    A power supply board design required. Board will have an AC input which will be able to work on 115V and 230V mains voltages. Board will have 6 different isolated 24V DC outputs, these outputs will be able to supply 1A of current typically and 1.2A on burst condition. Also there will be 5V 3A and 3.3V 1A non-isolated outputs. There will be 2x 12V Lead-Acid battery connection for backup the mains input. Power supply will be controlled with an integrated microcontroller and will support security functions. Design will be performed with avoiding obsolete parts and will utilise SMD technology. In the first stage, detailed system plan needed prior to elecrical design.

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    This project is two fold as you look at the schematic- piezo and metal tank. The suggest is made of placing a second inductor across the primary of the transformer to improve the driver's efficiency . The value of the inductor is empirically picked to minimize power consumption (it offsets some of the capacitance of the piezo transducer. The optimization need to function with any piezo at the 63kHz range Also we consider a push/pull transformer arrangement driven by a similar microprocessor arranged input. This is typical of higher power ultrasonic drivers.

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    NEED TO MAKE DESIGN A PCB HAVING 4 INPUT CHANNEL AND 5 OUTPUT CHANNEL WITH A 300 LINES MICROPROCESSOR WITH GPS AND 2G SIM MODULE, WIFI AND CAMERA. NEED A NANO CIRCUIT.

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    I have a small OEM circuit board I would like to reproduce. I would like someone to produce a file i can send to a manufacturer who can produce the board and solder the components. It requires some editing from OEM in that the LED things get too hot and un-solder themselves. They would need to use something different in the new board or better cooling or both.

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    Perjanjian Kerahsiaan
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    We are developing code for TTGO7000G which is using ESP32 Module 1. Get GPS Location 2. Send Data to HTTPS Post. - Lat / Long - Battery Level - Unique ID of Device PlatformIO is Preferred Sample Code

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    We are trying to develop a prototype for our idea. We require a skilled worker to help us use the arduino and microphone to consult on our basic design and help us improve it. We would like to pay per hour of consultation. The consultant should ideally be based locally in London and have knowledge of microphones, arduino hardware and circuit design.

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    Tempatan
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    Hi, After a PCB design and possible coding for a WS2812B clock. Similar to attached image. Basic Functions - WS2812B leds around clock, 60 for inner circle, 12 for outer circle. - Text on front of clock for the 'hr'. - Buttons on back for reset wifi / set time. - Button battery for holding the time when no power. - Light sensor to 'dim down light at night', and make brighter during the day. Advanced Functions. - Integrated Camera module at centre of clock. Code Integrations - ESP32 WiFiManager (code exists) - ES32 CAM remote viewer (code exists) - Web Based page for modification of lighting. -- Adjust dimming (light sensor) -- WS2812 colour picker wheel for setting, hour, minute, seconds. Thanks Tristan

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    Bluetooth Call Recorder 2 hari left
    DISAHKAN

    Our goal is to build a bluetooth device which can record calls for our CRM app. Build a device that can do the following 1. Connect to a phone as a Bluetooth headset 2. Has an output 3.5mm for connecting a wired headset 3. Answer calls 4. Record calls 5. Transmit recordings to a mobile App via bluetooth 6. Have a rechargeable battery Device should look like a small square box, with 3.5mm port, usb charging port, two led indicators, on / off switch Device should show two bluetooth channels, one for headset (A2DP) and one for connecting to our app. We will need finished product, which is ready to ship to customers.

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    Not a standard audio recorder app - Destined for a dedicated Android phone Permanent Non-Stop 24/7 audio recording to the maximum extent that the phone battery and internal disk space will allow You do not need to handle incoming calls since I will block all incoming calls at the operator (carrier) level What I need / Purpose: To record any audio in the physical presence of the phone using the internal microphone of the phone, 24/7, 86400 seconds a day. What I do not want: To record calls Target OS: Android phones (Samsung), Android versions 10,11,12 I want you to complete the project using these specifications: Automatic Non-Stop Permanent 24/7 Audio recording using internal phone microphone on Android phone Automatic saving to mp3 using 60 seconds file segmentation (savi...

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    Need a logo to use in business cards, website, brochures and folders. Company Sells: Electrical Vehicle Charging Stations, equipment, software and management, technical support COMPANY NAME: WATTS 4 EV or WATTS FOR EV Some ideas but not limited: lighting, volts, EV stands for Electrical Car, parking, saving, going green, trendy

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    Dijamin Peraduan Teratas
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    Simulink model of Chua based memristor chaotic circuit. I am sharing the working file and the fine to be debug. Expectation: The below matlab code should provide synchronization. plot(out.m); hold on; plot() Reach me for further queries.

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    We need to make small changes to our existing circuit board by replacing a solder pad footprint with a header (board mounted connector). Find the necessary new part design files and modify our existing circuit board project. We will provide most of the new part information as well as our existing Gerber and Eagle files. You may need to produce a custom footprint for the new part. You will provide a package of revised working files for us to send to our PCB maker. Details:

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    Build mobil hot spot 2 hari left
    DISAHKAN

    I want to build a mobile hot spot, this hot spot should have internal battery. Sim card slot like any smart phone, antenna 5g, Wireless attena low to midban, midban agression to connect to carrier hdmi connection, two usb connection, and power connection. Should also have an lcd display with software to display battery life, settings options , Bluetooth, antenna connection menu for regular should also have 1TB internal memory. Or external Internally should have Windows 11 software setting Core i 9 processor Similiar to MeLE PCG02 Fanless Mini PC Stick Windows 11 Pro I will attach a picture of it here

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    I have multiple electrical components Doc attached) that will be needed in my trailer, that ill need to perform my day-to-day duties as a dog groomer. I need to know how much electricity needs to be produced for each item what size of wire do I need...need to perform my day-to-day duties as a dog groomer. I need to know how much electricity needs to be produced for each item what size of wire do I need to use wiring diagram of all circuits how many circuits/space will be needed from the breaker out and a complete design of wiring from a generator, shore power, or combination of both, I'm also open to the idea of using batteries and solar charging too it needs to be reliable for daily use id like a shopping list of every piece i don't have listed too please messag...

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    I have multiple electrical components Doc attached) that will be needed in my trailer, that ill need to perform my day-to-day duties as a dog groomer. I need to know how much electricity needs to be produced for each item what size of wire do I need...need to perform my day-to-day duties as a dog groomer. I need to know how much electricity needs to be produced for each item what size of wire do I need to use wiring diagram of all circuits how many circuits/space will be needed from the breaker out and a complete design of wiring from a generator, shore power, or combination of both, I'm also open to the idea of using batteries and solar charging too it needs to be reliable for daily use id like a shopping list of every piece i dont have listed too please message me f...

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    MODEL_DIVA SPA 4 hari left

    Alright, the “Base Price” will be $50 per model (tub) this include: The inside part of the tub. The outside (the wood planks). The pieces already modeled (screws, jets, filters, etc.) Basic texture variation 2 Revisions Not include: New pieces that are not already modeled. New texture variations that are not the basic one. New sizes that are not the original one....one. New sizes that are not the original one. Extra prices: I’ll charge $5 per new piece that does not belong in the already modeled pieces. I’ll charge $5 per new texture I’ll charge $10 per modification after the 2 revisions. Comments: Please take into consideration the measurements, and provide as many measurements as possible. This will be useful because after the 2 revisions I’ll s...

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    Laravel Expert + API 1 hari left
    DISAHKAN

    Greetings , we have an app which makes decent revenue and looking for expertise to help us with daily tasks. we need ongoing support. don't try to scam me by charging on each feature or to-do list. willing to pay 800/1200$ for Management. { Daily 3-4 hours) all the automated bids will be Rejected. APP you will be working on: looking forward to your positive response.

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    Dimeterai
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    Build me 2D/3D battery 1 hari left
    DISAHKAN

    Design a digital form of 2D/3D of battery and smart car -

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    Solar designer 1 hari left

    Southish facing roof , looking for a solar designer to come up with what I think I need and sort out the rest .. solar panels with battery backup..

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    Southish facing roof , looking for a solar designer to come up with what I think I need and sort out the rest .. solar panels with battery backup..

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    I need a random number generator circuit designed and built for my research project. The RNG must have the following characteristics: The circuit must be capable of delivering and maintaining a steady stream of randomness The circuit needs to be interfaceable to a computer system via a standard USB port The circuit must be capable of delivering randomness at a rate adjustable through the USB serial interface. The circuit must be biasable, The bias should be deliverable via the USB serial interface. The bias should affect the RNG non-deterministically. The circuit must be powered using the USB port. Other requirements are flexible. Ideally we will have the opportunity to discuss my requirements together before you perform the work. Acceptance...

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    WT (wind turbine) model must be made in DPF software (DiGSILENT PowerFactory software) according to international standard IEC 61400-27-1. In DPF wind turbine type 4B template (Which is already available in software) will be used and modified internal controller parameters to...ride through) events. I am quite familiar with the DPF but I need most of the help regarding technical knowledge but as we have to make model in DPF then it is also necessary that you have experience with DPF software. The freelancer must be familier with the DiGSILENT power factory software and also with the building wind turbine model and tune the internal controller to swith ON and OFF circuit breaker during HVRT (High voltage Ride through) and LVRT (High voltage Ride through) events Kind regard...

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    We have an one PCB with ATMEGA32 Controller. We want to be upgrade this with STM32 Controller. DC Power Supply will also be upgraded. Sensor, Communication and Amplification part will also be changed.

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    ...Driving Assistant Professional which incorporates an improved adaptive cruise control for the city, autonomous emergency braking at intersections and more efficient lane keeping assistance than before. The engine range of the BMW X4 remains unchanged except that the xDrive30i petrol engine is now hybrid miniatures like the diesel blocks. The electric starter-alternator powered by a dedicated 48 V circuit allows you to benefit from a temporary support of 11 HP while consuming less. XDrive all-wheel drive and eight-speed automatic transmission are standard on all trim levels. The section level petrol engine is still supplied by the X4 xDrive30i which loses 7 HP to offer 245. The X4 xDrive M40i still shows 360 HP. The X4 M Competition remains strong point with a 510hp six-cylinder...

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    ...basic materials/tools. - The platform should be an STL file for 3D printing or able to be cut out of pine. STL file is preferred. - The shell would need to be designed. It should fasten to the platform securely with easy removal to get access to the components, have a decent design that resembles a car and be an STL file for 3D printing. - Easy charging of the car would also be needed. Being able to plug in the car and charge instead of removing the battery would be a nice touch. - This car needs to be fast. I will see a fan car similar to this one - I will also most lily see a Co2 powers car similar to this one - If possible, I would like to leverage Silicon Labs components as

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    I have raw JSON php data I need to properly store to mysql database. Here is the data being posted: {"app_eui":"6081F94AF0B2","dc":{"balance":999774,"nonce":2},"decoded":{"payload":{"accuracy":0,"altitude":0,"battery":"4.14","latitude":33.76,"longitude":-118.195,"speed":"0.62"},"status":"success"},"dev_eui":"6081F8C4A9","devaddr":"10010048","downlink_url":"","fcnt":0,"hotspots":[{"channel":1,"frequency":904.0999755859375,"hold_time":0,"id":"112HNaDxu7jmV2H1dTT8s5zqk7emhsGYECfzzL9qyfKy8TNYvtrq...

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    Hi, We need someone who can design electronics for our product. You need to review product details, select sensors according to need and design electronics and PCB for it. We also need same person to do firmware and testing for it. We need reasonable quotes please because we are not new in this field. Further details will be shared with selected freelancers only. Thanks.

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    I need to read battery voltage and current directly because in normal android app programming, the battery voltage always stuck on a number for a long time while current is changing all the time. This example is not accepted because current is always change, but the voltage is stuck on a number, each sample is in one second: Voltage(mV),Current(µA) 3680,220947 3680,189514 3680,160522 3680,161743 3680,185547 3680,160522 3680,139770 3680,148010 3680,434875 3680,275879 3680,383606 3680,1166993 3680,624084 3680,216369 3680,208435 3680,340576 3680,516662 3680,528870 3680,194702 3680,208435 3680,691223 3680,322876 3680,769653 It's very hard to describe what I really need. The problem is that the voltage is reading not in real. It is measured internally and calculate a...

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    I am looking for a Electro Mechanical Designer to design an inverter and battery box (Autocad) ready for manufacture.

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