5v battery charging circuitcông việc
...how long before the battery change is to be carried out. The customer must be able to have 1 or more products with different sales dates, thus also several different service times/times for battery changes For example: A customer has purchased some equipment, with different service dates and requirements for battery replacement within given deadlines. When the deadline approaches, let's say 1 month before the expiry date, we should receive an email notification saying that customer X has a product that is approaching the deadline for service and/or time for battery replacement The database needs to contain the following information: Customer info: Ship name Boat call sign Ship owner Email Product information: Product name Manufacturer How many month...
Project Description: I am looking for a skilled ...designed to be powered by AC electricity for optimal performance and convenience. Water and Steam Proof: No - The client does not require the coffee maker to be water and steam proof, suggesting that durability in these conditions is not a priority. Ideal Skills and Experience: - Experience in designing and developing coffee makers or similar appliances - Proficient in electrical engineering and circuit design - Knowledge of timer control systems - Familiarity with AC power supply integration - Attention to detail to ensure the coffee maker functions seamlessly If you possess the required skills and experience, and can deliver a high-quality Automatic Immersion Coffee Maker with timer control, please submit your proposal for cons...
We are looking for someone to scrape data from another website that we own and transfer that data onto site we build. This will be a very simple site but we will be charging for the data the customer sees so; We will need a site that works in the same way as the reference site Ill send you in a direct message. The data on there is the number of houses in a postcode area. The customer will go into the site, click a button that will have his/her desired postcode area in and then a payment blocker will come up before the data is shown. So, to be clear, your role will be to scrape the data in an organised fashion and develop a static website in whatever provider you think is best. The main page of the site will be this data and the payment blocker.
...the technologies described in the “Technology Description” section below. <Technology Description> This technology is designed to control the battery temperature of electric vehicles* in an optimized condition. One of the problems with charging electric vehicles is that if the battery temperature is too high or too low, charging efficiency is reduced. To solve this problem, the technology is that by controlling the battery temperature to an appropriate temperature in advance before arriving at the charging point battery, which charging efficiency can be improved. More specifically, while driving the route to reach the charging point, the battery is controlled to reach the targeted temperature,...
We are consultants for setting up EV Charging Stations. We are looking to hire freelance structural designers who can design a canopy and get it fabricated as per our / customer needs. Shall be able to produce designs in isometric, top, front and side views. Shall also produce manufacturing diagrams for fabrication. Shall be able to understand the requirements and reproduce the same in terms of structural designs. Shall be able to design the structure that can withstand the winds/other geographical challenges and produce a final drawings by simulating the weather conditions. Shall also be able to propose suitable civil drawings for proper mounting of the proposed canopies. looking for engineers with experience 0-1 year. Expected skills in AutoCAD, StaadPro
...minutes. So the daily consume of the measurement device is 640 mW/day and the GW consumes 900 mW/day. For the electric supply of the measurement device i'm using a chinese 500 mA, 5v solar panel, a replica of the Samsung 18650 battery with 2500mAh capacity and a LDO mode TLV757P (3.3V, 1A). For energy management I'm using a LM2596 regulator to low the voltage at 5 Volts to a TP4056 battery charger. Then, the LDO supplies constant 3.3 volts to the ESP32, LoRa and sensor. For the gateway, I use a 12V, 10W solar panel, with a PMW voltage regulator, a 12V, 7Ah lead-acid rechargeable battery and a LM2596 regulator (to get 5V). The gateway PCB regulates the voltage to 3.3v with the TL757P LDO. The LM2596 regulator feeds a wireless 4G router. Rec...
...and remove malicious files and apps - Real-time scanning to detect and prevent threats in real-time - Privacy protection features to safeguard user's personal information - Option for customizable security settings for advanced users - User-friendly interface for easy navigation and accessibility - Regular updates and bug fixes to ensure optimal performance - Efficient resource usage to minimize battery and memory consumption Ideal Skills and Experience: - Strong proficiency in Android development, with a focus on security and privacy protection - Experience in developing antivirus or security apps for Android platform - Knowledge of different Android versions and their compatibility requirements - Familiarity with security standards and protocols - Understanding of data en...
I am looking to have a small solar panel system installed on my property. I already have one installed so I'm looking for someone to come in and assess and provide the necessary tweaks so that it will be up to code and functioning properly. I am specifically interested in an On-Grid system which involves connecting to the utility grid and requires no additional battery storage. I will need small size panels to be used so the job won't be too labor-intensive. The ideal freelancer should have experience with installing solar systems on-grid and a good understanding of the necessary safety measures and codes.
Optimization of Hybrid Energy management using battery and supercapacitor using Dynamic Programming - I am looking for a freelancer who can help me with a power split between battery and supercapacitor optimization problem. -I HAVE ALREADY WRITTEN THE CODE BUT FACING SOME ISSUE WITH THE THE STATE OF CHARGE OF THE BATTERY. THE CODE HAS TO BE MODIFIED ACCORDING TO THE REQUIREMENT. -Looking for a person who is expert in Energy Management problem. - I would appreciate guidance from the freelancer. - The type of optimization needed for this project is dynamic programming. Skills and Experience: - Strong understanding of dynamic programming and optimization techniques. - Experience in solving power split optimization problems. - Knowledge of various optimization algorithms ...
I have built a circuit that works to send a 0-10v signal. Looking for someone who can offer pointers on a couple connections i have to triacs as well as source parts to reduce the footprint of overall board. Ive only ordered most parts on amazon. But would like to search else where for a larger selection and possibly cheaper alternative.
I'm seeking help to get my music project "Charging Up" off the ground - from creation to promotion. I'm looking for an experienced freelancer to help me navigate the whole process. Specifically, I need assistance with logo design, website development, content writing and marketing and promotion. The timeline for this project is flexible - I'm mostly looking for someone who can bring skill and creative ideas to the table, so methodology and approach are both open to creativity. If you think you can definitely help me out, let's get the ball rolling. I'm really looking forward to seeing what you come up with!
Require support in a simple operational amplifier conceptual design. Need to be experienced in electronic circuit design and calculations.
...holder base - 3P+N - 10.3x38 - 500 Vac 2 x Schneider A9N15646 - STI fuse holder base - 1P+N - 10.3x38 - 500 Vac 2 x Selec MFM384-R-C-CE multifunction measuring device 6 x Selec SPCT Ring Current Transformer 62/40 100/5A VA1 CL1 1 x Schneider A9E18327 - Three-phase iIL warning light 3 red leds 110÷230Vac 2 x Schneider A9N18372 - Circuit Breaker C120N 4P C 80A 10ka 1 x Schneider A9F89432 - iC60H 4P C 32A 10ka Circuit Breaker 1 x Schneider A9F89416 - iC60H 4P C 16A 10ka Circuit Breaker 4 x Cabur CB810 - CBD.70 THROUGH CLAMP 1 x Cabur TE820 - TEC.70/D EARTH TERMINAL 8 x SIEMENS through clamp 35mmq gray 8WH10000AM00 2 x Siemens through terminal 35mmq yellow green 8WH10000CM07 4 x Siemens 8wh10000ak00-16mmq gray through terminal block 1 x Siemens through terminal 1...
...Animation for Mobile Batteries We are looking for a skilled animator to create realistic 3D animations for mobile batteries. The ideal candidate will have experience in creating realistic animations and a strong understanding of rechargeable lithium-ion batteries. Animation Style: - Realistic animations that accurately depict the behavior and appearance of rechargeable lithium-ion batteries. Battery Type: - The animations will primarily represent rechargeable lithium-ion batteries. Animation Length: - Each animation should be more than 30 seconds in duration, allowing for a detailed showcase of the battery's features and functionality. Required Skills and Experience: - Proficiency in 3D animation software and tools. - Strong understanding of realistic animation techniqu...
I am seeking a freelancer to design a circuit for a water-activated 12v alarm. The purpose of the alarm is to turn on an alarm/LED light (see attached) when probes get wet. I am open to any suggestions for the circuit design, and I require the supply voltage of 12v. I need a freelancer with experience in designing water-activated alarm circuits, so please provide references and details of similar work during bid submission. (I've attached the specs on the alarm that I need to operate.) I will need a prototype.
an app which has user interface for user to talk over text, call, videochat with listeners after charging fees per minute
I'm in need of an experienced electronics engineer to make modifications to a racing car control module and add a new circuit. This project will require the engineer to be able to suggest the best possible solution and come up with their own ideas of how it should be implemented. The estimated duration of this project is 1-3 weeks. The engineer must have a deep understanding of electronics engineering, particularly Analog Circuit Design, Digital Circuit Design, and PCB Layout and Design.
CYPM1311-48LDXI 28V EPR PCB Design Project I am looking for an experienced hardware engineer with expertise in Altium to design a custom-sized PCB for a highly complex and advanced project. The ideal candidate should have the following skills and experience: - Experience in Altium PCB design - Strong knowledge of electronic components and circuit design - Familiarity with power sources such as battery operation, external AC/DC converter, and solar power - Ability to design a small-sized self-powered SINK request board for 5/9/12/15/20/28V EPR requests - Understanding of highly complex and advanced PCB design requirements - Attention to detail and ability to meet project specifications - Strong problem-solving skills and ability to troubleshoot any issues that may arise dur...
...(datasheet in the excel file). The customer is sourcing diesel at $1/L and has to purchase new gensets every 5yrs at a cost of $0.4/W. A project developer wants to add PV and storage to offset a portion of, if not the entire, diesel usage. The attached document also contains PV production for a 100kW PV system but it may be scaled up or down as necessary. PV LCOE on this island is 5c/kWh. Installed battery costs start at $500/kWh for a 2hr system with a $25/kWh addition for every additional hour of storage required. What is the most optimal solution for customer? Please state all assumptions. CASE PROMPT 2: Stabilizing the Grid A project developer plans to install a 50 MW system in the NEM to participate in frequency regulation services (FCAS). The project developer ha...
Project Title: RDisJ4ALL! I am looking for a talented artist who can create a digital, cartoony caricature of a person for my projec...have a red and white shirt on , jeans bright red high top shoes. a large Gucci belt buckle fedora hat. he is a superman and he must have a cape. id like to see him ripping his shirt open with J4A on his chest shirt. ron our cherature is a lawyer/super hero fighting against injustice. he fights for the people of the marijuana industry. having a flag with a pot leaf crying dollar bill tears while charging the capital building!!! RDisJ4ALL! If you have a knack for creating vibrant and expressive cartoon characters, and can deliver high-quality digital caricatures, I would love to hear from you. Please provide examples of your previous work in a simi...
I am looking for someone who can help me simulate a part of ADC (AD9467_ 16-Bit_200 MSPS/250 MSPS adc) circuit, specifically the AC coupling circuit. The main objective is to test the circuit's functionality by inputting different shapes of signals and observing the output(The input and the output signal need to be in txt file ). Specific Requirements: - The ability to simulate the ADC circuit using sinewave & square wave signals. - Consideration of noise as a testing parameter during the simulation. Ideal Skills and Experience: - Proficiency in simulating ADC circuits and analyzing their behavior. - Knowledge of noise analysis and mitigation techniques.
I'm restating some of our conversation we've had over in the email just for the record. I asked you the following questions and you're answers were: You are looking forward to getting an iPhone 7 modified such that it can operate without battery and plugged in the charger. It is a research and development project so an initial cost of 200$ which will include some equipment and buying a working iphone which i can send you in the end after making modifications. The service fee of 400$ is going to be charged. After the modification is made, i'll send you a demo video of everything working. we will then ship it to the US to you and the shipping cost will be covered by you. Some expected problems expected in this project are 1- buying several iphones or mot...
...custom hardware which we have built to connect to a medical device. The custom hardware has its battery, main controller is the Texas Instrument MSP 4030 and the BLE chip is the RN4020 I have the MSP-EXP430G2ET flash programmer board ready to be used with CCStudio from TI I believe the problem is with the firmware. There will be to phase for this project. I need to send data from custom hardware to Garmin IQ via BLE. The goal is to have Garmin Watch log the external sensor data along with heart rate. Later, the heart rate and pressure curves should integrate with a video from an outdoor camera based on timestamps, possibly using Garmin's VIRB studio. The custom hardware includes a battery, with the main controller being the Texas Instrument MSP 4030 and th...
We are using esp32s3 as IOT device. It is working well, it is not good for managing battery life. For increasing battery life, we are using deep sleep mode, but it is not enough yet. So for managing battery, I would like to hear your recommend.
...that can be used to teach toddlers what the alphabets sound like. I already have a circuit design for my system. I need artist to design the 3d parts of the familiar which I can print and fit the electronic components into. The 3d model has to be similar to what is shown in this video The key points of difference are 1. The mouth: It has to be permanently open with a width of 5 to 10 mm. Also, it has to fit a speaker from the inside top, and a circuit board from inside bottom. 2. The eyes and ears : Instead of an internal mechanism the toy will have 8x8 led dispays for the eyes. The ears will not move 3. The body has to the following: A circuit board of about 5 x 5 cm 4 removable batteries of size AA at the bottom. The full
...long trips. Charging System: - The preferred charging system for the Tata Indica EV is a wall socket, allowing for convenient and reliable charging at home or in public charging stations. - Additionally, an easily on-the-go replace-able battery pack system is a must - Architecture should include space for a small fuel - powered generator system to charge batteries in case of emergencies - Architecture should also include space for solar related electrical equipment Performance: - We expect the Tata Indica EV to deliver a high level of performance, striking a balance between efficiency and power, with a boost mode for occasional fun rides. Skills and Experience: - Strong knowledge and experience in electric vehicle development, with a focus on rang...
...Arduino/raspberry pi based. You will essentially be taking the role of a subject matter expert and provide consultation. You will need to find the appropriate microcontroller and all components that’s will provide the following function: Bluetooth and Wi-Fi Python/C LCD screen(1.5-2inch) magnet sensor(able to detect a magnet swiping by like a door open/close sensor) lithium ion battery(with type c charging) alternative AA battery as power supply You will need to provide a full components solution that will allow for the development of a small electronics device that includes the above components. You will need to create a document with all components, specs of the components, and links to purchase the components. You will also need to provide documents to w...
"Reddit's Most current Offense: Making Its iOS Application Symbol Terrible as Damnation" It is not too difficult to imagine that we are seeing the demise of one of the web's number one virtual entertainment stages progressively. In the wake of charging for admittance to its Programming interface and endeavoring to crush resulting fights by means of meetings with the doltish President, Reddit has now made its iOS application symbol into a tasteless, 8-bit monster. Recently, iOS engineer Benjamin Mayo tweeted out a screen capture uncovering to the overall population that Reddit had redone its application symbol. While configuration changes are standard practice for organizations to keep their image new or potentially signal a fresh start, Reddit might have independ...
I need you to find a suitable project for me. I want something similar to the following: I need it to work at 10-15v in a car and it cannot use normal RF433mhz due to noise affecting other components in the car. I want it to work with bluetooth, 2.4ghz or something like RFID technology. Let me know if this is possible.
I am in need of a freelancer who can assist me with my Etap project, specifically in conducting a short circuit analysis. Requirements: - Experience in conducting short circuit analysis using Etap - Knowledge of electrical engineering principles and circuit analysis techniques Deadline: - The project must be completed by a certain date, so prompt and efficient work is necessary Circuit Quantity: - The project involves analyzing more than 10 circuits, so the freelancer must be comfortable working with a large number of circuits If you have the necessary skills and experience in Etap and circuit analysis, and can complete the project by the specified deadline, please reach out to me. Thank you!
I am in need of an expert technical review for an electronics device design. I am looking to get a thorough analysis of the design, focusing on the circuit design, user interface, ergonomics and usability, aesthetics and visual appeal, and functionality. I have specific concerns that I want to have addressed. The expert technical review should help to identify any areas of improvement in relation to those concerns. The review should also look into any potential issues with the device's design, as well as potential solutions.
...to advanced experience. This level of expertise would ensure that my chosen engineer has a solid understanding of hardware design principles, component integration, and electrical system development. You should be proficient in designing and prototyping 'system on modules', have experience with other common wireless technologies and audio systems, and possess knowledge of power management and battery integration. Additionally, familiarity with regulatory compliance and industry standards related to electronics would be beneficial. --How fast do I need it delivered?-- We will agree on a timescale that is suitable. --Will you work with a team or work independently?-- You will work with myself, since I'm the primary Product Designer for this product. It w...
I am looking for an experienced freelancer to develop a Simulink model of a 500W bi-directional isolated AC/DC converter. The input voltage range will be 100-240V from the AC side coupled with a 48V DC side from a LiFePo4 battery. No constructed PCB board is required for the simulating circuit. Additionally, the desired output power of the AC/DC converter should be 500W - 600W. The power convertor needs to be isolated using high frequency transformer (small sized) and should be able to provide AC power when Grid fails and charge battery when Grid is avaiable. Battery is expected to be around 500Wh @48V. If you believe you have the necessary skills to complete this project, I would love to hear from you. Thank you!
I have two products which I designed myself and I am producing myself. I have them online at Etsy and Ebay. I sell only very few of them per month i... Here are the products on Etsy: The first one is a stand for a Kids GPS Watch and the second one is a storage box for (rechargeable) batteries with a very compact design and first in first out feature (you always pick the oldest battery in the storage). Please make a suggestion on what you would do for 100 USD. I am focused on the German market but would ship to whole Europe, too. I am a beginner in online marketing so I think you will be able to make some big first steps :-)
A Simple circuit for FSK modulator and Demodulator need to be designed for 4.5MHz. The circuit should be simple and low power operation. The components used should be commonly available in market. Designer shall provide, schematic, simulation file, BOM, BOM cost, Simulation result.
I am in need of skilled electrical engineering assistance for a large-scale project. Specifically, I am looking for assistance with circuit design. I have a plan in mind, but I need help making it a reality. I will need an experienced electrical engineer who can quickly and accurately assess the project and actively work towards completion. The individual must be detail-oriented and able to work with tight deadlines and handle complex technical challenges. This project requires an understanding of various engineering disciplines including electronic control, design, programming, and testing. If you have the right qualifications, I’d be glad to hear from you. Thanks!
- All W3C Standards followed for website design - SSL integra...previously issued certificates - Display low seat availability based on course registrations - Database/Login for class instructors to report attendance, upload paperwork and class notes, student photos Information gathered from registrations and class paperwork is bulk uploaded to the EPA’s CDX database - On the backend, ability to add/remove/shift student(s) to alternate class dates with or without charging a fee - On the front end, ability for a customer to change/reschedule a previously booked class for free (within a grace period) or for a fee if past the grace period - Inquiry form on website for in-house group classes - Automatic student roster generation/email sent to instructors for upcoming classes the...
...assist me with designing a circuit from the ground up. The project requires expertise in software programming and It just needs to be an effective circuit, and parts list. You need not design PCB etc. Just use an off the shelf waveform generator and couple to the power circuit. Its mainly about the output circuit that will provide the power required with the control (voltage) and out capability (up to 100A/phase) it is a linear synchronous motor driver, just a basic one for initial testing. We will work on a feed back circuit later on. Just for now we just want to test the arrays (which are indicated as solenoids) to see what forces we can get. The output of the wave generator is +/- 5 volts max so we need to be able to take that signal and drive the ...
We are currently in search of a proficient Electronics Engineer with extensive expertise in network and RF technologies to support our ongoing electronics project. The circuit design comprises three distinctive components, totaling 20 elements. Notably, the PCB layout will feature exposed copper with strategically positioned stitching vias, facilitating the segregation of various functional blocks into distinct regions of the board. Ideal skills and experience for the job include: - Strong RF circuit design expertise - Proficiency in network protocol analysis - Experience in RF testing and measurement - Ability to work independently and provide technical guidance - Strong problem-solving skills and attention to detail - Excellent communication and collaboration skill...
I am looking for an expert to design and develop a trigger circuit to control an electronic device. Input signal is of minimum 40ns @ 1.96Vpp and maximum 75ns @ 29Vpp. This trigger is ac signal. I require circuit to trigger a relay for this range of input signal. The job needs to be done ASAP. If you have the skills and experience to handle this project efficiently, please get in touch.
I am looking for a freelancer who can modify a TTP223 touch sensor to add additional functionality. The specific modifications required include: - Adding a 12v to 5v regulator circuit to feed the touch sensor - Adding a pin for 12v and a pin screw I may also need help with debugging or troubleshooting the touch sensor in the future. The ideal freelancer for this job should have experience and skills in circuit design and modification, as well as troubleshooting electronic components. The project needs to be completed within a month.
Job is edit the pdf as shown in the sample image. Mostly changing color, but removing the top tube on white bike and adding battery cover. Skills and Experience: - Proficiency in Adobe Illustrator - Experience in editing vector files - Attention to detail to ensure high resolution output
I am looking for freelancers with experience in building hardware that utilizes Bluetooth Low Energy (BLE) technology. The specific hardware that I am looking to build is for transmitting data from my hardware to a Garmin watch. The custom hardware has its battery, main controller is the Texas Instrument MSP 4030 and the BLE chip is the RN4020.
Project Title: Mobile phone I am looking for a mobile phone with the following features and functionalities: - High quality camera - Long battery life - Advanced security features I will be needing additional peripherals with the mobile phone. My budget for this project is $100 - $500. Ideal Skills and Experience: - Experience in developing mobile phones with high quality cameras - Knowledge in optimizing battery life in mobile phones - Expertise in implementing advanced security features in mobile phones
...looking for an experienced engineer to design a Power Factor Correction (PFC) circuit with a post Buck Converter. The project requirements are as follows: Input Voltage Range: - The desired input voltage range for the PFC with post Buck Converter is 200-240V. Load Type: - The PFC with post Buck Converter will be powering an incandescent tube load. Output Voltage: - The desired output voltage for the PFC with post Buck Converter is 220V DC with an adjustable range of 20%. Ideal Skills and Experience: - Experience in designing PFC circuits and post Buck Converters. - Knowledge of power electronics and control systems. - Familiarity with incandescent tube loads and their requirements. - Proficiency in circuit design and simulation software. - Ability to meet project de...
... - USING STM or ATMEL controller - the mechanical body of the wheelchair already made and wghit almost 55kg . - it consist of tow battery each 12 volt connected in series. - dual dc motor each 24 volt with maximum current of 7A - THE SPEED OF THE MOTOR IS 3000 rpm and has a gear ratio of 1:10 - each dc motor contain electrical brake system . 3. Reverse Mode - The wheelchair should have a reverse mode. - This will enable easy maneuvering in tight spaces. 4- provided parts : - the mechanical part of the wheelchair already made - dc motor already available with the electric brake system requirement : - designing the controller circuit to control the movement of the wheelchair in smooth and robots manner. -the wheelchair will move according to the comma...
Manufacture Battery Monitor - Ideal Skills and Experience: - Experience in manufacturing battery monitors for various types of batteries (Lithium-ion, Lead-acid, NiMH) - Knowledge of specific features and specifications for battery monitors I am looking for a manufacturer to manufacture a product that I already have. It is a battery monitor that shows battery voltage, current, time remaining, state of charge, and temperature. In addition, it also records warnings and alerts events with a real time/date stamp. Also, cumulative lifetime amp-hours are recorded. We have the part we want to copy/manufacture.
My company is seeking a freelancer to create a comprehensive PowerPoint presentation related to battery metals. This presentation has an educational focus, and will be intended for an audience of industry professionals. The presentation should include a minimum of 11 slides, and may include more than 20 if necessary. We have all the content and slides prepared but would like help to create more engaging graphics and exhibits, perhaps with some animation of charts/slides.
...machine - Input 12 V from a car battery. - Output 12v to a small poison spray pump. - Poison control pump 12V 10 amps draw - low-cost solution without wifi or BLE As described in the video we need a device to replace the operator’s thumb on the control button for the machine. We need to be able to adjust the length of time the pump runs at a factory level – this run time will be set up before the unit is delivered to the end user. We need to have the operator with the ability to adjust the frequency the pump runs using a multi position dial. The output needs to be intermittent with the ability to adjust the duration of supply and the duration of non-supply. the circuit board needs to be mounted in an enclosure with a 5 to 7 position switch an operator
