Volt battery charging circuitcông việc

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I need someon whoo Will make a research or find a product on the market for me. I need a micro gps trucker, which can be attached to a pigeon leg so small waigt max 15grams, for my studies of pigeons, the battery must resist for 3 day. so i need a micrko gps trucker who Will show me on the app on the real time the exsact location where the bird is. IF THIS ALREDY EXSIST ON THE MARKET i need a price and a supllyer for big qutities of micro truckers or if isnt jet on the market. I need a research who should built this mikro trucker for me and for how much, so find me a suplier to who Will produce it. TIME TO do until 4.4.2015- that you have time to contact the suplier. Money for the reserch 15 usd(exact result i Will tellyu on private)

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.

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

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.

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

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.

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...

Building an arduino controlled lawn mower, I took two 24 volt motors from a jazzy pride wheel chair. welded a frame for my lawnmower with front caster wheels. for the motor controller im using a Cytron mdd10a to Cytron CT-uno with cytron ps2 shield. what I would like to do is be able to control the unit by either joysticks or R1,R2,L1,L2 From my basic understanding with the mdd10a that it would have to be controled via pwm

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

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:

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

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...

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...

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...

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.

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

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..

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..

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...

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...

simulations to optimize Piezo cavitation and match of driver circuit?

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.

...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...

...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

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...

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.

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...

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

...growing the business in the coming future. We pay per job and have an average rate of $100AUD per job which takes about 2-3 hours to complete. Smaller jobs pay a little less but larger jobs can pay a lot more. $100 is just the average. We typically do 300-400 jobs a year and plan to grow to double this over the next two years. We also include 3 revisions in this price to our customers as well before charging them further per hour. Revisions do not include any errors we make or should already know as a draftsman. A set of plans generally includes a site plan, frame plan, 2x elevations and connection details. Please note connection details are just copied and pasted from our typical connection detail library. Sometimes details may have to be slightly edited to suit a job but gener...

Provide a thoroughly researched overview of the c...geothermal, nuclear, hydrogen 2. Software - virtual power plants (VPPs), distributed energy resource management (DERMS), outage management (OMS), automated distribution management systems (ADMS), microgrid control systems, computerized maintenance management system (CMMS), demand-side management 3. Energy storage systems - battery, pumped hydro, compressed air, advanced storage 4. Electric vehicles - electric vehicle supply equipment (EVSE), fuel cells, electrolyzers, battery electric vehicles (BEVs), plug-in hybrid electric vehicles (PHEVs), chargers (level 1, 2, 3), fleet electrification, ferry electrification, scheduling and maintenance 5. Artificial intelligence - artificial intelligence (AI), machine learning, crowd-sou...

t is the concept of electric vehicle charging station, now the location of the charging station and a 2d dwg drawing has already been prepared (which needs a little retouch aswell). Can you handle any of the following, (drawing the localization of charging station, planning the localization charging slots, ways, main building with the restaurant, service rooms, living rooms, transformers rooms, switchgear room). Simply specifying thier location on the already made dwg. Conceptual project of electrical installation of charging stations (choosing charging stations for different electric cars (already specified) , power balance, preliminary choosing transformers’ powers, design and choosing wirjacking, design of switchgear, choosing the place...

Hi I need to design a BMS system. Previous experience in BMS is desired.

...). This should be used as string object as well in Xpacker. Output is a blender file that can be exported as .fbx with all the right textures to work in Xpacker. It should be made of 4 tiles (white-red-white-red) so I can change the colours depending on the circuit. • 1 Grand stand with roof to be used as main stand in a circuit • 1 simpler open metal stand • Pit building with garages and offices on top (as inspiration you could use this ) It should be a string object with a “start” object (i.e. the glass offices of the picture), a “pattern” object that can be used as string, which would be the garages itself, and an “end” object (i.e. parking for the safety car). Attached picture of

Excharge is the company name We are an EV (Electric Vehicle) charge, Battery and Green Energy startup. Looking for modern. simple. strong logo. Not cliche please (ie no lightning bolts) as we want to stand out from the competition. Looking for clean and an icon or typeface with strong recall. For website, and on product.

Combination of text and symbol, youthful with strong impact logo

Hello I had someone build me a laravel website. We accept membership payments through stripe. However my stripe API key and secret key is being used for what strip calls card testing. Literally thousands of small payments are being charged to my stripe account. Stripe told me to implement radar which I did and now they are charging me for every blocked transaction by their radar. Are you able to look at my website and find out how they continue to get my API live key and secret key. I have rolled my keys and use different keys on stripe but every time I put them on my website they get access to my keys. Is this something you can help with? Thank you in advance Greg.

I need someone who can worked in EV sectos( Buses,trucks,car) Specifically weight reduction Battery or motor efficiency Green Hydrogen Battery system design I need only consulting work for concepts and innovation about 5-10 hours max at this stage

I need to ship you these circuit boards for diagnosis. I have an OEM gear selector for an ICE powered car. It has 5 buttons and associated LEDs. It normally outputs a CAN or LIN bus based signal. But I just need it to output a "to ground" signal from each switch. What I would like to do is ship you the circuit boards and a spare connector with the pins. I need the LEDs associated with each of the 5 switches to illuminate when each switch is engaged, and the unit sends out a “to ground” output from each of the 5 functions, via the connector leads in the attached image. I tried to just solder on leads to the switch contacts of the larger board, but the leads and solder would not adhere. One can see in the image where the large board was burned at the ...

hen an IGBT or MOSFET are fully "on" they are known to be saturated, when they exceed their maximum current ratings they are known to "over saturate" which will eventually cause failure of the device. While IGBT's and MOSFET's are used for very simi...device. While IGBT's and MOSFET's are used for very similar applications it should be noted there are two main differences, the MOSFET tends to lean towards high frequency low-power switching whereas the IGBT leans towards lower frequency and harsher switching conditions, these are just the common assumptions. Due to the fairly ruggedised features of the IGBT they normally have around a 10us short-circuit capability and a higher voltage rating which makes them a lot easier to protect. The MOSFET ...

need e fast short circuit protection for the ac power line

Summary: Off the shelf micro based control unit using Arduino, etc. Unit takes 2 pulse inputs and interprets to speed, these are 5 volt PNP inputs. Unit has multiple relay outputs for alarms, 4-20 ma analog output, serial output (fixed length ASCII), Ethernet Modbus and Profibus interfaces (slave). The unit has no keypad nor display, programming wil be via bluetooth running an app on IPhone and Android devices. App writing is required. Unit has 2 modes of operation. Stand alone single pulse processing and differential detecting from 2 pulse inputs. Thru Hole and SMT, coding, testing and all drawings and source code.

Short protection and over load protection for ac alternative current ca

...Address: Terminal 4, JFK, NY, 11430 Fare: $500 Approx. Hours: 5 Wait Time: 3 Hours Hourly Trip: If it was an hourly trip then ill enter hours like 10 Hours Tolls: $20 Gratuity: $50 Cash Tip: $10 Parking: $20 Cleaning Fee: $$100 (In case someone spilled a drink or something) Water Fee: $5 Food: $5 Extras Fee: Like any damage to the car or if the client asked for Wi-Fi or anything like that and we are charging for it (So, all these numbers I will enter manually depending on the job we received from a network) There are 5 to 10 Main networks we work with, so I want to see each network like Empire Limo sent us how many jobs and what daily, weekly, monthly, and yearly revenue we earned in above-mentioned categories. Likewise, other 4/5 networks keep the same pattern above. In the expe...

I have a simple teensy sketch. I have supporting schematic and hardware. I have compiled to best of my knowledge but I am doing something wrong. I am trying to put together but somehow cannot seem to get it working. I would like someone to guide / assist me in what I need to do to get the project working. I would also like someone to modify the code to port from a teensy to esp32/8266. For a professional this will be easy work. For me I don’t have the attention span. I am confident with soldering circuitry and simple code. But I am not a c+ nor a micropython expert. So I require the services of someone who is competent in arduino, teensy, c++, python and circuitry / pcb. Also have another project looking to reverse engineer a pcb where to the successful applicant will receive a n...

Hello Looking for PCB Engineer to create a GERBER File for the circuit board as shown on Pages 7 and 8 of the attached PDF

3"x2" with a .75" edge all around to cover battery post terminals

We have finalized the QMK Firmware for one of our products and we are looking to finish the last piece which is the RGB Mapping. A simple job that will require 1-2 hours at most if you are familiar with C/C++, QMK, and Circuit diagrams.