Filter

My recent searches
Filter by:
Budget
to
to
to
Type
Skills
Languages
    Job State
    5,000 battery charging jobs found

    I’m building a shared Power Management Unit to run off a 12 S (≈ 48 V nominal) lithium-ion battery pack used across my autonomous UAVs and small UGVs. The board has to fit inside a 86 mm × 55 mm envelope, survive the vibration and temperature swings of flight, and be simple enough for repeat production through JLCPCB’s turnkey assembly service. Core functionality • High-voltage distribution with robust inrush-/over-current and reverse-polarity protection • Multiple, well-isolated regulated rails for avionics, companion computers, payloads and SAT-COM gear • Integrated buck/boost conversion and overall power-path management for maximum efficiency • On-board current, voltage and thermal sensing routed to a telemetry header/UART so t...

    $491 Average bid
    $491 Avg Bid
    32 bids
    Custom GPS Tracker App
    6 days left
    Verified

    ...authentication backend (Firebase Auth, Supabase, or a similar plug-and-play service is fine). All device commands and data packets are already documented in the manufacturer’s GitHub repo; I will share that repo and sample API calls once we start. I’m open to native Swift/Kotlin or a high-quality cross-platform stack such as Flutter or React Native—whichever lets you deliver a responsive UI, battery-friendly background location handling, and rock-solid push notifications. Deliverables: • Source code (iOS + Android) ready for App Store and Google Play submission. • Brief setup guide so I can compile and rebrand in the future. • Post-launch bug-fix window to iron out any edge cases that appear in the field. If you’ve previously integr...

    $323 Average bid
    $323 Avg Bid
    71 bids
    Local Control Tuya Smart Lock
    6 days left
    Verified

    ...on RTL8720CF; TUYA IOT SDK V:2.3.1 rtl8720cf_common_lock_ty:1.1.16 pid:umca8uiv2203ua3k firmwarekey:key5943jddfsyeu3 v1:1.1.16 v2:1.3.9 Tuya-CloudCutter wont work as its not entering AP mode. Flashed OpenBeken FW, but cant set properdpIDs Thanks. I’m running a Tuya-based smart lock that currently relies on Tuya’s cloud, and I want it to function entirely inside my LAN. Lock, unlock, status, battery level—everything has to stay, but without any call home. What I need is solid API integration work. Whether you reverse-engineer the existing Tuya local protocol, pull the device keys, or wrap native commands in MQTT/HTTP, the outcome should be a clean local API I can hit from Home Assistant or a simple Python script on my Raspberry Pi. Deliverables • Wor...

    $126 Average bid
    $126 Avg Bid
    82 bids

    I'm looking for a skilled electrician or solar power...install a self-sufficient electrical system in my sprinter van. The system needs to be powered by solar panels and should be adequate for full-time living. The primary usage of this system will be running climate control (AC), and the fridge is the most critical component that needs constant power. Occasionally, I will also be using a cooktop, air fryer, fan, and charging devices. Key requirements: - Solar panel setup - Sufficient battery storage - Reliable power management system - Safety and code compliance Ideal skills and experience: - Experience with van conversions - Knowledge of solar power systems - Electrical system design and installation - Familiarity with living off-grid Please provide a detailed pla...

    $159 Average bid
    $159 Avg Bid
    13 bids

    ...must be designed specifically for a compact wrist wearable and must leave space for: - Li-Po battery - Optical window - Skin-contact area - Haptic motor - Magnetic/pogo charging - Wearable enclosure - Strap/mechanical mounting CORE COMPONENTS: - ESP32-C3-WROOM-02-N4 – MCU + BLE - Bosch BMA400 – accelerometer/motion - Bosch BME280 – ambient temperature/humidity/pressure - MAX30102 – EVT optical reference - MAX86141 – optical sensor evaluation / production candidate - MAX30205 – skin/body temperature - MAX17048 – battery fuel gauge - BQ25185DLHR – battery charger/power path - W25Q64JV – external SPI flash - DRV2605L – haptic driver - LRA vibration motor - Li-Po battery - Battery NTC - Ma...

    $261 Average bid
    $261 Avg Bid
    14 bids
    AP_Periph CAN Battery Monitor
    6 days left
    Verified

    I’m looking for an embedded-systems engineer who can take ArduPilot’s AP_Periph codebase and turn it into a robust CAN-bus battery monitor. The unit will sit on a DroneCAN network and stream full MAVLink telemetry, so it can slot straight into my existing ground-station setup without any extra protocol bridges. Integration with other telemetry options such as or SmartPort isn’t needed right now. Key functions I must see on the bus: • High-accuracy individual cell voltage for every cell in the pack (not just pack voltage) • Hall-effect current sensing that stays linear and low-loss all the way to 400 A • Standard AP_Periph health, identification and parameter handling so the flight controller recognises the device instantly Deliverables 1. ...

    $166 Average bid
    $166 Avg Bid
    29 bids

    ...under the grandstand. I need the whole system modernised so I can walk onto the field with a phone or tablet and run the show from there. Scope of work • Inspect every board, power rail and driver on the existing hardware, replace any damaged or obsolete parts, and leave the display fully refurbished. • Design and build a new controller unit that adds rock-solid wireless connectivity plus a battery-backup circuit so a brief power loss never blanks the screen. • Write clean firmware for that controller, making sure it can address both the seven-segment digits and the P10 matrix for centre messages. • Create a companion mobile application (Android and, ideally, iOS) that lets an authorised user: – Enter and update scores in real time &ndas...

    $244 Average bid
    $244 Avg Bid
    21 bids

    ...chosen object. For example: If [MAIN OBJECT / SUBJECT] = EYE: The camera may zoom into the iris, reflections, or microscopic textures. If [MAIN OBJECT / SUBJECT] = PENCIL: The camera may zoom into the pencil tip, graphite texture, wooden grain, engraved text, or a tiny reflection. If [MAIN OBJECT / SUBJECT] = SMARTPHONE: The camera may zoom into the camera lens, screen pixels, app interface, charging port, or reflective surface. If [MAIN OBJECT / SUBJECT] = FLOWER: The camera may zoom into a petal texture, pollen, water droplet, or the center of the flower. If [MAIN OBJECT / SUBJECT] = WATCH: The camera may zoom into the dial, gears, clock hands, reflection, or tiny mechanical details. If [MAIN OBJECT / SUBJECT] = CAR: The camera may zoom into the headlight, wheel, logo, r...

    $9 / hr Average bid
    $9 / hr Avg Bid
    2 bids

    ...**Admin Panel:** Responsive web dashboard The developer can recommend a better architecture if they have experience building **location-based delivery, field-service, taxi, or on-demand service applications**. --- # Important Technical Requirements The application must: * Work reliably with background location where permitted by Android. * Handle poor internet connectivity. * Avoid excessive battery consumption. * Prevent duplicate lead assignments. * Calculate distance accurately using GPS coordinates. * Automatically expand the search radius. * Store lead assignment history. * Record staff location updates securely. * Handle staff going offline. * Protect customer and staff personal information. * Have proper role-based access for Admin and Staff. The system should also b...

    $266 Average bid
    $266 Avg Bid
    61 bids

    ...functionality I need implemented: • Bike availability map that updates live as bikes are checked in or out • Secure user authentication with personal profiles and ride history • Integrated in-app payments (cards, wallets, or UPI) so riders never leave the app • GPS tracking for every bike, visible to both rider and admin • Push notifications for booking confirmations, ride reminders, and low-battery alerts • Built-in customer support chat for instant help on the road I’ll provide branding assets, API keys for payment and map services, and access to our bike-tracking hardware docs. You’ll deliver well-commented source code, compiled binaries ready for TestFlight and Google Play internal testing, and brief setup documentation s...

    $243 Average bid
    $243 Avg Bid
    27 bids

    GMB for 2, SEO for 2 domain and Google ads for Battery Australia

    $462 Average bid
    $462 Avg Bid
    1 bids

    I’m rolling out 18 new items on my eBay store and need every listing built from the ground up so it can go live without further edits on my end. You’ll receive full Seller Hub access along with all product photos. What I need from you for each product: • A clear, accurate compatibility chart focused on car-battery fitment so buyers instantly know whether the item suits their vehicle. • A description that starts with a persuasive overview paragraph, flows into concise bullet points for the technical specifications and usage instructions, then closes with the warranty details. • All supplied images uploaded, cropped when necessary, and arranged logically in the gallery. • A clean, mobile-friendly layout that follows eBay best practices for SEO, ...

    $170 Average bid
    $170 Avg Bid
    151 bids
    Cartoon Rock & Jewel 3D Toy
    5 days left
    Verified

    ...pull-in. 2. Both parts slice in Cura without red areas at 0.2 mm layer height. 3. I can open and edit the master file in Inventor 2024 without feature loss. I need to be able to edit it after-the-fact as a solid body (cut away internal areas and such for electrical components I would like to incorporate inside). Once this first pairing feels right, expect follow-up briefs for berry bushes, charging docks and more. Consider this project pitch as an opportunity for you to showcase your work/style, allowing me to review your portfolio to determine if you're a match. Thanks!...

    $66 Average bid
    $66 Avg Bid
    80 bids

    Hi, We are seeking to acquire a substantial, production-grade automotive software codebase with legally transferable usage rights for further development. Our focus areas include: • ECU / Firmware development • AUTOSAR • CAN / CAN-FD communication • UDS diagnostics • ADAS (Advanced Driver Assistance Systems) • EV/BMS (Electric Vehicle/ Battery Management Systems) • Embedded Linux or RTOS Technology Stack: We are flexible regarding the technology stack, but prefer C/C++, Python, COBOL, AUTOSAR, embedded Linux, or other widely used automotive industry standards. Key Requirements: 1. Real, functional production-grade source code (not demos or prototypes). 2. High-quality code with clear structure and documentation. 3. Legally transferable licensin...

    $6990 Average bid
    $6990 Avg Bid
    32 bids

    ... Test: * RAM reset * Calculator power cycle * Battery removal and reinstallation * ESP32 reboot * Wi-Fi loss and reconnection After restarting, the user must be able to invoke the designated launcher again and use the AI normally. 10. CONFIGURATION SYSTEM Provide a simple configuration system, preferably based on the TI84-AI project's configuration portal. Configuration options: * Wi-Fi SSID * Wi-Fi password * OpenAI API key * AI model * Camera resolution * JPEG quality * Optional debugging API credentials must not be exposed in public source code. 11. PHYSICAL INSTALLATION Install the ESP32-S3 and camera internally while maintaining normal calculator usability. Ensure: * LCD remains unobstructed * Keypad works normally * Battery compartment remains access...

    $155 Average bid
    $155 Avg Bid
    82 bids
    Install Commercial Rack UPS
    4 days left
    Verified

    ...it into the dedicated 208 V circuit already pulled to the data room, verifying grounding, and performing a full load test with our IT team before hand-over. You should be comfortable working around running equipment, Please bring the tools required for safe lift-in. Deliverables expected: • Fully installed rack UPS, cabled and labeled • Commissioning report showing voltage, amperage, battery diagnostics, and 30-minute load test results • The existing Commando plug will be removed/cut off from the cable. • The cable will be connected directly (hardwired) to the terminal block inside the new UPS. • The terminal block is where the electrical conductors—typically Live (L), Neutral (N), and Earth (PE)—are terminated. I’d like to ...

    $291 - $872
    Local
    $291 - $872
    0 bids
    Trophy icon Modular Rugged Kids ANC Headphones
    4 days left

    ...attached concept render shows the intended colour scheme correctly. 5. Name tag built into the outer cup shell: flush window, 50 × 15 mm paper card behind a clear window, tool-free card change, same cup on both products, closed pocket (no through-hole into the cup). 6. EduFocus cup: the cup is noticeably deeper/thicker than the current EduFlex cup — it has to house the ANC electronics and a battery under an EVA outer skin. Keep the EduFlex oval outline and surfacing, but give it the extra depth; do not hide it, make it look intentional. Exactly three physical controls — power, volume up, volume down — nothing else on the outside. USB-C port. Twist-and-click cable socket. The talk microphone is our existing EduFlex microphone nub (photo attached; the part...

    $93 Average bid
    Guaranteed
    $93
    41 entries

    Need small anf compact HDI multilayer pcb from systematic to pcba which can be connected with my existing smartphone pcb . Requirement in custom pcb are - 1) NFC + custom NFC antena 2) Secure element 3) secure MCU 4) type C USB for data 5) vibrator 6) touch buttons 7) pogo pins for charging BOM and all details of my main pcb will be discussed and provided to you

    $222 Average bid
    $222 Avg Bid
    21 bids

    We are looking for an experienced mechanical/product CAD designer to develop a clean, professional and manufacturing-ready CAD design for battery casing/enclosure. We have the basic dimensions, internal component layout and design direction. The requirement is to convert this into a practical casing design that can be manufactured locally using CRCA sheet metal, laser cutting, bending and welding, followed by powder coating. The designer should have prior experience designing sheet-metal for premium electrical/electronic enclosures, battery enclosures, UPS/inverter cabinets or similar products. Scope of Work - Develop the complete 3D CAD model and assembly - Design individual sheet-metal components - Account for appropriate sheet thickness, bend radius, bend allowance and ...

    $51 Average bid
    $51 Avg Bid
    18 bids

    ...that we can redeploy after each trip. I’ll need your help scoping both variants and producing an estimated cost per device for each. What I expect from you • A concise technical proposal outlining the recommended tracker form factor, network technology (e.g., GSM, LTE-M, NB-IoT, LoRaWAN), and back-end platform or API you plan to leverage. • A table or brief breakdown comparing unit cost, battery life, and accuracy for single-use versus reusable models. • A proof-of-concept design or working demo that shows location updates on a simple dashboard and triggers a theft alert when the device’s motion profile or geofence suggests unauthorized removal. • Any assumptions about data plans, SIM provisioning, or gateway coverage clearly stated so I c...

    $121 Average bid
    $121 Avg Bid
    96 bids

    I'm seeking a civil manager for a commercial Battery Energy Storage System (BESS) site near Kilmarnock, outside Glasgow. Key Responsibilities: - Site inspections - Project scheduling - Safety compliance Ideal candidates should have: - Extensive experience in managing civil works for BESS or similar energy projects. - Strong knowledge of local building codes and health & safety regulations. - Proven track record in project scheduling and conducting site inspections. - Ability to ensure safety compliance on-site. - Fluent English communication skills. Additional Details: - On-site role starting in 2–3 weeks. - Approximate duration: 6 months. - Day rate: £350–£400 based on CIS compliance. Please provide examples of similar projects you’ve man...

    $117701 Average bid
    Urgent
    $117701 Avg Bid
    7 bids

    ...mobile developer to create (or refactor) a PokerStars-style app that feels just as slick as the desktop platform. My immediate priority is a rock-solid Live Chat function so players can talk to each other seamlessly at the tables. Key points • Build the mobile client from the ground up or improve any existing codebase I provide. • Integrate real-time Live Chat with low latency and minimal battery drain. • Ensure smooth gameplay flow and protect hand data during chat sessions. • I’m flexible on the target platform—if you specialise in iOS, Android, or both, let me know how you’d approach it. Deliverables 1. Fully compiled mobile app. 2. All source code and documented APIs for the chat layer. 3. Brief hand-off guide covering...

    $450 Average bid
    $450 Avg Bid
    120 bids

    ...- Showcase general repair services (servicing, diagnostics, major repairs for German marques) - Local SEO for Ashbourne/Meath region - Online booking system integrated (any reliable platform) - Mobile-responsive, fast - Call-to-action: "Book a Service" / "Get a Quote" **Website 2 — EV/Hybrid Specialist Site** - Showcase EV battery diagnostics, hybrid repair, EV servicing expertise - Positioned as a specialist offering (higher-value service) - Target keywords: "EV battery diagnostics Ireland", "hybrid repair Meath", "EV service specialist" - Online booking (same system as Site 1 for backend simplicity) - Mobile-responsive, fast - Call-to-action: "Schedule EV Diagnostic" **Technical Requirements:** - Fast, m...

    $555 Average bid
    $555 Avg Bid
    295 bids

    ...com]() **Services:** Architecture & Interior Design **Markets:** Mumbai/MMR, Pune & Hyderabad **Target:** Niche, premium clients only * Villas: ₹1 Cr+ project value * Offices: 10,000+ sq. ft. * Boutiques: 5,000+ sq. ft. **Ad Budget:** ₹500/day **Goal:** 2–4 highly qualified leads/day — quality over quantity. ### Company 2 — TSA | EV Charging Infrastructure **Services:** EV Charging Station Setup, EPC & Franchise Opportunities **Market:** Pan-India — 100+ cities **Ad Budget:** ₹500/day **Goal:** Minimum 10 qualified leads/day. **Background:** I have been running digital ads since 2010 and already have an existing campaign/ad for reference. However, I’m unable to dedicate the time required to manage, optimise and scale the camp...

    $3 / hr Average bid
    $3 / hr Avg Bid
    35 bids

    I’m assembling a collection of first-pe...instructional angle: tell the viewer what you’re about to do, why you’re doing it, and any tips or small decisions you make along the way. Think of it as guiding someone who wants to replicate the task. No background music or added effects are needed; I only need the native iPhone footage with its original audio track. The full 50 hours can be delivered in multiple sessions—whatever feels comfortable for battery life and file size—so long as each clip is labeled chronologically and totals the agreed-upon duration. I’ll accept standard iPhone resolutions (1080p or above) in H.264 or HEVC format, uploaded via cloud storage. If everything is captured from your perspective, narrated as you go, and reaches th...

    $5 / hr Average bid
    $5 / hr Avg Bid
    12 bids

    ...Wireless and wired connectivity are essential: 4 G cellular, Wi-Fi, Ethernet, plus a USB interface for firmware loading. I also need Modbus for external equipment, on-board GPS for location services, and a battery-backed RTC. What I will provide • schematic of closely similar product, and datasheets for the preferred AC/DC converter, cellular module, and GPS receiver. • Mechanical outline, enclosure constraints, and notes on clearances required by AS/NZS mains-safety standards. Your task • Update the schematic to incorporate the new components and add missing features (USB, GPS, Modbus, battery socket, RTC). • Lay out a multilayer PCB that respects creepage/clearance for 240 V AC, relay spacing, and antenna keep-outs. • Generate manufa...

    $534 Average bid
    Urgent NDA
    $534 Avg Bid
    15 bids

    ...Engineering (Click-Through Rate) Audit and curate professional photography to tell a compelling visual story. Write high-converting, benefit-driven SEO copywriting that "stops the scroll." Perform competitive "Comp" analysis to ensure our listings are the most attractive in their specific micro-markets. 3. Platform Management & Trust Ensure 100% amenity accuracy and "Tag Optimization" (EV charging, cribs, workspace, etc.). Sync cross-platform content to maintain brand consistency. Requirements: Technical Expert: Deep experience with the back-end of Expedia Partner Central and Extranet (standard Airbnb knowledge is not enough). Copywriting: Ability to write professional, warm, and persuasive listing descriptions. Algorithm Knowledge: Und...

    $13 / hr Average bid
    $13 / hr Avg Bid
    40 bids

    I’m gearing up to boost sales for the MGrow Electric Vehicle program across India by activating a network of micro-influencers. The mission is simple and singular: drive immediate, measurable purchases. To do that, I need creators who can film authentic product reviews that highlight real-world performance, charging convenience, cost savings, and eco-benefits in a way that convinces viewers to take the next step and buy. The content must feel native on Instagram, YouTube, and Facebook—short Reels, in-depth review videos, and engaging photo-carousels that carry clear calls-to-action linking back to our dealer network and online booking pages. I’ll supply talking points, spec sheets, any required branding assets, and exclusive promo codes so each influencer’s ...

    $253 Average bid
    $253 Avg Bid
    13 bids

    We are seeki...Buck-boost power management circuit for single-cell Li-Ion battery operation - Input protection circuitry (over-voltage, over-current, reverse polarity) - Dual antenna connectivity (SMA and connectors) The board must be production-ready, reliable in field conditions, and designed per industry standards. Deliverables include schematic, PCB layout files, BOM, and Gerber outputs. The designer can use KiCad or EasyEDA as the design tool. Full schematics, pin allocations, firmware interface details, and application context will be shared post-NDA. Ideal Skills and Experience: - Expertise in high-precision GNSS ICs (e.g., u-blox ZED-F9P) - Proficiency with ESP32-series modules and embedded hardware design - Experience with battery-powered devices and power manage...

    $278 Average bid
    $278 Avg Bid
    13 bids

    ...previously taken a wearable or similar battery-powered consumer electronics product from hardware design through prototyping and manufacturing. The device will involve: - Custom PCB / electronics design - Bluetooth Low Energy (BLE) - Microphone + speaker / two-way audio - Low-power embedded firmware - Battery and power optimisation - Wireless charging - Compact wearable enclosure / CAD - Prototype development and testing - DFM and manufacturing handoff The final project will require complete production-ready deliverables including schematics, PCB/Gerber files, BOM, firmware source, enclosure CAD and assembly/manufacturing documentation. Most Important Requirement Please apply only if you have already worked on a real wearable or similarly compact battery-powe...

    $2140 Average bid
    $2140 Avg Bid
    12 bids

    ...Install the latest build I supply (APK for Android, TestFlight link or ad-hoc IPA for iOS). • Run the app on as many unique devices as you can across different OS versions, screen sizes, chipsets, carriers, and regional settings. • Focus on pure compatibility: launch, login, core navigation, feature access, background/foreground transitions, and graceful handling of no-connectivity or low-battery events. Performance tuning and UX feedback are out of scope; I only need to know “works / doesn’t work” and any crash or display issue you spot. Deliverables 1. A spreadsheet listing each device (make, model, OS version, carrier, locale) with a simple pass/fail result and short notes for any anomaly. 2. Crash logs or screenshots for every failure. 3...

    $11 Average bid
    $11 Avg Bid
    3 bids

    I need a skilled PV engineer to prepare a complete design package for a new photovoltaic installation. The immediate scope centres on the solar-panel array itself; once this portion is finalised I may expand the brief to cover inverters or battery storage, but for now your attention should stay on optimising module selection, string sizing, layout, and mounting. Here is what I expect from you: • A site-specific array layout (AutoCAD or similar) showing panel placement, tilt, row spacing, and shading considerations. • Electrical schematics detailing strings, combiner boxes, cable runs, and protection devices. • A bill of materials listing every component required for the panel subsystem. • Energy-yield and performance simulations (PV*Sol, PVSyst, HelioScope...

    $449 Average bid
    $449 Avg Bid
    39 bids

    I’m building a compact digital cl...runs from a rechargeable Li-Po cell, and tops up through a USB-C port with on-board charging circuitry. The firmware needs to cover three operating modes: a standard alarm clock, a configurable countdown timer, and a Pomodoro-style work cycle. Here’s what I need from you: • Complete schematic with microcontroller selection, Li-Po charge/​protection IC, buzzer driver, speaker, and all support components. • PCB layout optimized for low power and minimal footprint while keeping the USB-C routing compliant. • BOM • Production-ready Gerbers, drill files, and pick-and-place data. • Simple bootloader or ISP header so I can reflash firmware easily. (is it possible to flash firmware through the USB-C cha...

    $108 Average bid
    $108 Avg Bid
    53 bids

    I need a small utility that automatically presses the “Skip,” “Close,” or “X” button whenever a video ad appears on an Android device. The focus is str...screen and taps the visible skip/close control the moment it appears • Source code with clear comments so I can maintain or extend it • A short README covering permissions required, how to build, and any configuration options Acceptance criteria 1. On at least three popular apps containing skippable video ads, the utility dismisses the ad within one second of the button appearing. 2. Battery and CPU impact remains negligible during a 30-minute test session. 3. No interference with normal user interaction. If you’ve built similar overlay or accessibility tools before, t...

    $105 Average bid
    $105 Avg Bid
    121 bids

    ...Ifugao Provinces. If there are no orders, I stock up my inventory inside my warehouse, or leave the cement in the trailer truck and wait for orders from customers before delivering the cement. Give me an efficient and easy to follow monitoring system of my business, from picking up the cement, to delivering it to customers. Include the accounting part of paying the cement to the suppliers, until charging the customers their amount due as well. I am flexible on layout as long as navigation stays simple and everything happens through pop-ups, not manual row editing. Please send a brief but detailed project proposal describing how you will structure the workbook, the key VBA procedures, and any user-defined functions you expect to add. A short video or screenshot from a similar pr...

    $29 / hr Average bid
    $29 / hr Avg Bid
    29 bids

    ...from Android 8 onward • Well-commented source code (Java or Kotlin) so I can tweak endpoints and storage paths • A brief README explaining permissions, build steps, and how to enable or disable specific modules I expect reliable background operation, efficient use of resources, and accurate, timestamped logs for screen, audio, and keystrokes. If you have experience bypassing aggressive battery optimizations and handling runtime permission prompts gracefully, that will be a big plus. Let me know your approach and estimated turnaround....

    $86 Average bid
    $86 Avg Bid
    23 bids

    ...residence existence through visual data by conducting a site visit to ensure that we provide reliable and accurate information to our client. JOB DESCRIPTION: • Take pictures of the residence and its vicinity per Confirmis’ standard operating guidelines. • Take picture of the surrounding area and provide observation about the site. REQUIREMENTS: • Must be living in (or nearby) the following address: Battery Road, Bank of China Building, Singapore 049908 • Has a camera or phone/tablet of quality with a camera, internet access • Must be available during business hours (9 AM - 4 PM) on working days • Must be available specifically on Monday, September 7, 2026, during business hours for the site visit. Please see the attached file for the site v...

    $15 - $20
    Local
    $15 - $20
    0 bids

    Research, create, and design an enclosure for an Underwater Scanning Sonar System. The project will include a bracket for XY dual stepper motors, a motor controller, a Raspberry Pi, and a sonar transducer with a PCB. Heatsink, Battery, and Mounting Base. Other parts or configuration to be determined at a later time in the project.

    $40 / hr Average bid
    $40 / hr Avg Bid
    1 bids

    ...must operate reliably indoors and outdoors, fit comfortably within a 10 × 20 cm footprint, and meet commercial-grade durability standards. Core electrical requirements • True sine-wave topology with ≥90 % efficiency under typical load • Clean 220 VAC output, THD ≤3 % at 150 W, full-power capability to 300 W • Input 12 VDC nominal, LiFePO4 profile charging via high-frequency PWM • Integrated SoC display or LEDs for real-time battery percentage and charge status Protection & safety Over-temperature shutdown, overload limiting, and fast-acting short-circuit protection are mandatory. Design choices must reflect these protections (e.g., NTC placement, current-sense shunt sizing, MOSFET SOA calculations). Mechanical expectations ...

    $108 Average bid
    $108 Avg Bid
    16 bids

    I n...active devices are a ATMEL TINY 13A (needs programming and a PA1CD (i think it's a zener diode, 4 resistors and 1 capacitor. On the decal side there is a small led that lights when latched. It needs to be copied exactly because this switch circuit gets glued into a recess in a plastic case with cutouts for the components so the board lays flat. I may not need the switch decal. Run on a 3.7VDC battery. Key Requirements: - Exact replication of the existing PCB design - High-quality and durable materials - Experienced in PCB design and fabrication Ideal Skills and Experience: - Proficiency in PCB design software - Experience with consumer electronics, specifically portable devices - Attention to detail and quality assurance Please provide samples of previous work and relev...

    $1055 Average bid
    $1055 Avg Bid
    42 bids

    ...need is Wi-Fi—no Bluetooth fallback. Power will come from a small, replaceable battery rather than USB or a rechargeable cell, so every milliamp you can save counts. Here is what I expect when we are done: • A compact PCB layout that fits the rough footprint of correction tape (around 95 × 25 × 15 mm; I can adjust a little if it helps with antenna clearance). • Complete schematic, Gerbers and a concise BOM with readily available parts. • Firmware built with ESP-IDF or Arduino-ESP32 that can send and receive short text payloads over Wi-Fi, display them (even a simple OLED/LED matrix is fine), and confirm delivery. • Low-power strategy outlined and demonstrated so the device can idle for weeks on a fresh battery yet wake instantl...

    $81 Average bid
    $81 Avg Bid
    32 bids

    ...deliverables 1. Raw uncompressed video files (minimum 4K, 25 fps or higher). 2. A short stitched reference reel (2–3 min) showing the full run of the line. 3. High-resolution JPEG or DNG stills suitable for A3 print. 4. A simple shot log noting date, timecode and GPS point for each sequence. Footage should be steady, horizon-level, and free of prop-shadow. Please ensure you bring a multi-battery setup, ND filters and a calibrated gimbal; no ground photography, mapping, or post-production beyond the reference reel is required. Air-space permissions for this corridor are pre-cleared by our team—you will just need to operate within standard DGCA regulations and maintain safe standoff from active tracks. I will be on site to guide exact shot locations and sign o...

    $74 Average bid
    $74 Avg Bid
    3 bids

    ...keeps the footprint light and the boot time quick, whether that’s a stripped-down Android build with networking stacks removed or a fully custom OS. but more likely just on/off. then a button to run. Your task is to take the idea from concept to a working prototype. I’ll need the electronic design (schematic, PCB layout, and component selection), a daylight-readable display, a rechargeable battery able to power at least eight hours of continuous use.. Low power consumption, immediate on/off and rock-solid stability. Deliverables • Complete bill of materials and Gerber files ready for fabrication • Firmware / OS image with reproducible build instructions • 3D-printable enclosure files • Step-by-step flashing and assembly guide &...

    $7457 Average bid
    NDA
    $7457 Avg Bid
    38 bids

    I need a compact firmware-and-hardware solution that lets a PIC microcontroller, programmed with the XC8 compiler, manage a battery-powered power supply built around a lead-acid pack. Here is what I am after: the PIC should start up from the battery, regulate or switch the output rails as required, continuously read the pack voltage, temperature or any other basic health indicators, and trigger clear actions (for example, low-voltage cutoff or status signalling) before the battery reaches critical limits. A simple serial, I²C or even LED indicator scheme is fine for status feedback—as long as I can read the key parameters easily during bench tests. Please base the code on MPLAB X + XC8 so I can compile and tweak it locally. If you prefer a specific mid...

    $93 Average bid
    $93 Avg Bid
    15 bids

    Design and implement an offline tabular Q-learning (Q-table) controller in MATLAB/Simulink for a hybrid PV–battery system feeding a buck converter. The controller should accurately regulate the converter’s output voltage under varying irradiance, load, and battery SOC. The project will be completed in two phases: 1. Develop a complete Simulink model of the hybrid PV–battery–buck system, generate an offline dataset of transitions, train the Q-table, and implement a MATLAB Function block for closed-loop voltage regulation using the greedy Q-table controller. 2. Enhance the controller with physics-informed reinforcement learning by incorporating buck converter equations into the reward function and state features. Demonstrate voltage regulation und...

    $59 Average bid
    NDA
    $59 Avg Bid
    2 bids

    ...Handling errands and pickups/drop-offs Researching something I need to buy, fix, schedule or solve Following up on things I have started but haven't had time to finish Reminding me about calls or tasks that need to happen on a particular day Occasionally helping organize a closet, cabinet, medications, paperwork or another area of the house Taking a vague request like “I need to deal with this battery controller” and figuring out what actually needs to happen next The most important part of the job I don't want to have to project-manage my personal assistant. I need someone who can be given something like: “I need to return this.” and independently determine where it goes, when the deadline is, what label is needed, whether it needs to be pack...

    $20 / hr Average bid
    $20 / hr Avg Bid
    24 bids

    I need a Simulink model that lets me design and test a full state-space control system in both continuous-time and discrete-time forms. The goal is to compare the two implementations side by side inside the same project so I can evaluate performance, stability margins, and implementation effort before moving to hardware. I will provide the plant dynamics and desired performance indices as soon as we start. From there, I’d like you to: • Build the continuous-time state-space controller in Simulink, organised with clear subsystems for A, B, C, D matrices and any pre-compensators or observers you feel are appropriate. • Create the matching discrete-time version (sample time will be specified) and place it in a parallel branch of the model for direct simulation comparison. ...

    $9 / hr Average bid
    $9 / hr Avg Bid
    12 bids

    ...one cabin-facing • Live video uplink over 4G/LTE plus on-device recording to a removable SD card • GPS receiver for continuous tracking and metadata stamping • Integrated motion sensing and true impact detection, so an on-board accelerometer must trigger and flag critical events even when the car is parked • Clean vehicle-grade power input and automatic power-down logic to protect the battery Scope of work 1. Component selection: image sensors, SoC/MCU (ARM, RISC-V, or similar), 4G modem, GPS, IMU, power management, and thermal considerations. 2. Custom PCB design and layout, followed by manufacturing files ready for a quick-turn proto run. 3. Low-level firmware to handle sensor pipelines, H.264/H.265 encoding, LTE networking, GNSS, SD-card file...

    $122 Average bid
    $122 Avg Bid
    12 bids