Battery chargingemplois

...OF GPS TRACKERS AND UWB SYSTEMS*** ELECTRONICS - Design and realization of an electronic device that will integrate - 1 GPS tracker (U-blox ZED-F9P module) for geolocation - 1 GNSS antenna - 1 Qorvo DWM1001 module for communication between active devices - 1 4G module - 1 on-board memory for storing non-modifiable data - 1 on-board memory for storing random data - 1 microcontroller - 1 LiPo battery - 1 digital biometrical reader - 1 external connector via cable to a 3 to 5V power source - 4 signal LEDs with different colors (Green, Red, Blue) resistant for 50,000 hours And all configuration software and firmware for integration in GoogleMap and OpenStreetMap I want to design custom electronic devices that will run in an Android real-time navigation app. The app already exist...

Startup in Clean Energy is looking for an Electronic Engineer with expertise in BMS (Battery Management System), energy storage, connection to the electricity network, etc. This person must be able to make the complete architecture, up to BOM, POC, Prototype, etc. We are looking for a person with a minimum of 10 years of experience with an excellent reference in the field. We favor partners who consider long-term involvement in such a project. An NDA as well as a transfer of IP must be signed before the start of the process. French: Startup dans le Clean Energy est à la recherche d'un Ingénieur Électronique avec des expertise en BMS (Battery Managment System), en stockage d'énergie, en connection au réseau électrique, et...

...Kiosk: * Lock down Android smartphones and tablets into kiosk mode * Restrict users to allowed pdf file or url only * Completely Hide HOME button and Disable bottom bar * Don't show Widget * Block user from playing games, browsing or installing unapproved applications, Complete Device Lock * Block user from changing System Settings * Admin can securely unlock the device with a password (or charging it) * Auto launch application(s) at startup * Peripheral lockdown (wifi, bluetooth, auto-orientation, flight-mode, audio)...

...particulièrement les hautes technologies mais en restant proche du micro ordinateur, mobile... Voici pour commencer ma demande pour cette fois : - 400-700 mots sur la technologie des batteries et surtout ce qui risque d'arriver bientôt dans nos mobiles, sur quoi travaillent les recherches actuellement pour améliorer la taille, la durée... ex : - 400 mots environ sur la nouvelle génération de GPU pascal de Nvidia - Un comparatif (700-900 mots) entre les antivirus payants tels que bitdefender, norton, kaspersky, mcafee et notamment entre les différentes versions : internet security, total

this is a battery store with many keywords , we find someone who do good the SEO , you'd better know the french Nous sommes le fabricant de la batterie d'ordinateur portable. Nous vous vendons en gros les batteries d'ordinateur portable au prix favorable et de haute qualité. achatbatteries - HTPOW, SARL exerçant l'activité de vente à distance, située à Dahe rue,shenzhen,guangdong province,Chine.

I want a low price charging video creator who can make instagram/yourube posts for me on an ongoing basis

...periodic RTC events. When active, each peripheral must communicate reliably without compromising the sleep budget. Key points • Integrate existing C-based drivers into a single project • Configure and test the STOP-mode strategy, ensuring wake-ups from both the LIS3DH and the RTC function every time. • Audit clocks, GPIO states, and peripheral gating to reach the lowest possible average current—battery life is critical. • Maintain interrupt safety and data buffering so RFID reads, touch events, and LoRa transmissions cannot deadlock or overrun. • Provide clean, well-commented source code plus a brief report summarising achieved current measurements, test conditions, and any further optimisation opportunities. Reference code, schematic, an...

...main mission is two-fold: first, build system-level battery-optimization enforcement so the app behaves responsibly in the background without being killed by Doze or aggressive OEM policies; second, hook the project into Firebase. On the Firebase side, the app must support Authentication and Realtime Database right out of the gate, with Cloud Messaging for push notifications and Remote Config for on-the-fly feature tuning. For sign-in flows, I only need email-and-password and Google Sign-In. You will be working from a clean, well-commented repository that already contains the complete UI layer. I’ll provide the Figma files, current Gradle setup, and a concise feature map as soon as we start. Deliverables: • Code that enforces battery-optimization complian...

...compact desk ornament that spins on command, and I need a complete PCB solution to drive the rotation reliably. The ornament will only move when a small switch is flipped—no sensors, no remotes, just simple manual control feeding a quiet motor. Main Features: • main power source is 5V from USB to DC power jack connected to board via JST-PH cable 2pin socket. • 3.7V 800mAH Lithium chargeable battery as backup power source, connected via JST-XH cable. • 3-way SPDT switch(on, off, timer) connected to the PCB via a JST-XH cable. • 3V DC motor with peak current around 3A, connected to board via JST-PH(2pin) • 2 mounting points (M3 size to allow M2.5 bolts) Here’s what I’m after: • Schematic and PCB layout for a low-noise, low-curr...

I’m ready to brand “Off-Grid Solar Batteries” with a logo that feels modern and sleek. The focal point must be a blue 314 AH battery set against a pure-black background; that battery icon is non-negotiable and needs to stand out immediately. Add a solar panel if room All animation is ok too. Going on black business card For the word-mark, stick with a bold, strong typeface—one that balances the solid presence of the battery while still reading cleanly at small sizes. You’re free to experiment with the text colour, so long as it complements the blue and remains legible on black. Gradient accents, subtle glow, or crisp flat colour are all on the table; just keep the overall vibe sharp and contemporary. Please provide: • 2–3 ...

...Designer, include all libraries you create, and deliver the full manufacturing package (Gerbers, drill files, pick-and-place, and a PDF schematic). • MCU firmware – Write well-commented code in MikroBasic (or another PIC-friendly tool if you justify the switch). The firmware must read multiple sensors, exchange data through an efficient serial protocol, and use smart power-saving modes to stretch battery life. Please supply project files, compiled HEX, and a short flashing guide. • PC interface – Build a Windows utility in VB.NET that connects over USB (virtual COM, HID, or similar), lets me configure the board, live-stream sensor data, and log to CSV. An installer or simple XCOPY deployment is fine. Acceptance criteria – Board passes electrical rule ...

I need all data that starts from , walks through every brand, opens each handset page and captures the complete specification table exactly as shown. The end-product I expect is: • A clean JSON file data where every phone is an object containing every available field (model name, release date, dimensions, display, chipset, camera, battery—everything published on the spec sheet). Please make sure the scraper respects polite crawling rules, handles pagination and brand/model edge cases gracefully, and returns UTF-8 encoded text. If anything on the site requires minor waits or retries, can block your way. I will test JSON data and if validates proper data, the job is done.

...clean, well-structured Android code that can sit inside an existing project and do two things: first, grab the device’s location on a periodic schedule (we’ll fine-tune the exact interval together); second, run that stream through a lightweight data-processing routine before handing it back to me or posting it to an endpoint. The module should work on recent Android versions (API 26+), respect battery-saving rules, and keep running gracefully if the app is backgrounded or the device reboots. Kotlin is my preferred language, but solid Java is acceptable if that fits your style. Please package the deliverable so I can drop it straight into Android Studio: • Fully commented source code • A minimal sample activity/service showing it in action • A sho...

...the job is a lightweight background service that captures user activity—specifically app-usage timelines, every keystroke, and continuous location—even under the new Android 14 background-execution limits. All data has to be streamed in real time, encrypted end-to-end (AES-256 at rest, TLS 1.3 in transit), and made available for remote access from a web console. Zero-root, zero-popup, and zero-battery-drain are non-negotiable. How the platform should feel Think managed SaaS: multi-tenant, horizontally scalable, sub-second ingest for at least 10 000 concurrent devices, with an intuitive dashboard for live device views and remote commands. I am comfortable with Kubernetes, Terraform, and a micro-service approach (Go, Node, or Java), but you can propose an alternative...

...Designer, include all libraries you create, and deliver the full manufacturing package (Gerbers, drill files, pick-and-place, and a PDF schematic). • MCU firmware – Write well-commented code in MikroBasic (or another PIC-friendly tool if you justify the switch). The firmware must read multiple sensors, exchange data through an efficient serial protocol, and use smart power-saving modes to stretch battery life. Please supply project files, compiled HEX, and a short flashing guide. • PC interface – Build a Windows utility in VB.NET that connects over USB (virtual COM, HID, or similar), lets me configure the board, live-stream sensor data, and log to CSV. An installer or simple XCOPY deployment is fine. Acceptance criteria – Board passes electrical...

...USD max (all-in) Goal: Design a low-profile, athlete-safe chest-mounted POV camera enclosure (not a generic GoPro mount). Prototype-ready for 3D printing. Must Fit (V1 Internals) • Raspberry Pi Zero 2 W (65×30 mm) • Raspberry Pi Camera Module 3 Wide (IMX708) + CSI ribbon • microSD permanently installed (target 256GB) • Power PCB stacked with Pi (target total stack thickness ~10 mm) • LiPo battery retention (capacity TBD; design should support ~2 hr option) Key Design Requirements • Low-profile + rounded edges (no snag points) • Stable chest mount interface (rail/slot or rigid backplate) with anti-rotation • Protected CSI ribbon channel + strain relief • Replaceable polycarbonate lens window + gasket • Clear apert...

...architecture. We need you to take these requirements and build a fully functional "looks-like, works-like" prototype. The Engineering Challenge: The device replaces mechanical shaking and stirring with precision energy application. You will be engineering a system that integrates: Ultrasonic Cavitation (40kHz): For instant emulsification. Thermodynamics: High-power Peltier (TEC) modules and a thermal battery for flash-chilling liquids to -8°C. Fluid Dynamics: Magnetic drive gear pumps feeding a custom Venturi injector for gas aeration (N2/N2O). Inductive Magnetics: Motor-less magnetic stirring. Scope of Work: Review & Refine: Analyze our current PRD and component list to validate feasibility. Phase 1 (MVP Prototype): Design and assemble a functional brea...

I'm looking for a skilled engineer or roboticist to create a mechanical reptile for a school science project. The primary function of this reptile is movement, and it will be powered by batteries. Key requirements: - Mechanical design to enable realistic reptile movement - Battery-powered operation - Durable and safe for school use Ideal skills and experience: - Experience in robotics or mechanical engineering - Proficiency in designing battery-operated devices - Familiarity with reptile movement mechanics

...(IMX708). I need (A) a simple power/charging board design and (B) a reliable recording service/software for the Pi. Important: My total budget is $600 max for the full scope. Please do not apply if your quote will exceed $600. ⸻ A) Power / Charging Board (Pi Zero 2 W) Goal: Stable power + safe charging for a LiPo, designed for a compact wearable camera. Requirements: • LiPo charging via pogo-pin contacts (no open USB charging port preferred) • Power-path / load sharing so the device can stay on while docked/charging (no reboot) • Stable 5V output to Pi Zero 2 W (with enough current margin) • Battery protection features (basic protection/ESD as needed) • Support for a power button behavior (hold-to-power-o...

...The AI assistant continues to run even when other apps are open. It can receive and execute commands from notifications or voice input while running in the background. The app should maintain minimal battery usage and comply with Android’s background execution limits (Android 10+). Key Requirements: Strong experience with Android Services (Foreground Service, WorkManager, BroadcastReceiver, etc.) Java-based Android app expertise (Kotlin is a plus) Familiarity with AI or voice-based command integration (bonus) Must ensure smooth and stable performance without app crashes or battery drain Task Scope: Implement the background functionality for continuous command execution. Ensure compatibility with recent Android versions (Android 10–14). Enabl...

...a custom carrier board (or fully integrated PCB) for a smart beekeeping monitoring system. The device will monitor two beehives simultaneously and transmit data via LoRaWAN to the "Beep" platform. Project Scope: The goal is to design a PCB that handles power management and interfaces with multiple sensors for two separate hives. The device will be powered by a Solar panel and a Li-Ion/LiFePO4 battery. Core Components & Requirements: Microcontroller & Connectivity: Based on ESP32 with LoRaWAN capabilities. Preference: You can either design around a module (like ESP32-WROOM + RFM95) OR design a carrier board for a dev-board like the Heltec WiFi LoRa 32 V3 (to simplify assembly). Please specify your recommendation in your proposal. Sen...

Project Overview We are developing a South African renewable energy company with a solar-first strategy, starting in Limpopo Province and scaling nationally to reach approximately 75% coverage of South Africa’s electricity demand influence through multi-province operations. The company will initially deploy utility-scale and commercial solar PV projects, with optional battery storage, while maintaining a structured roadmap to integrate gas-fired peaking power and green hydrogen in later phases (post-Year 5), without delaying early deployment. Phase 1 – Anchor Project (Limpopo | Solar Only) Develop 50–150 MW utility-scale solar PV projects and commercial & industrial (C&I) solar installations. Secure private Power Purchase Agreements (PPAs) and wheeling...

...this very simple and easy looking. I don’t want it to look professionally done. I want it to look like an amateur did it but they took their time in doing so if that makes sense. Preferred workflow: you create a parametric CAD file (SolidWorks, Fusion 360, or comparable), export an STL set optimised for FDM printing, and supply a short assembly guide showing where the UV modules, nozzle array, battery bay and mainboard slide in. Dimensions should target a prototype about 30–35 cm tall, but keep wall thicknesses and tolerances reasonable for standard 0.4 mm nozzles. Deliverables: • Native CAD file with editable history • Print-ready STLs for all parts • Exploded view PDF or step-by-step images for assembly If you’ve modelled service rob...

...beginner-level enthusiasts. - Simplifying technical explanations to be accessible for Year 10 students. - Updating the Bill of Materials (BOM) with precise detail. - Enhancing wiring diagrams with clear labels suited for basic soldering practices. - Including step-by-step visuals or illustrations where necessary. - Providing essential safety instructions, particularly related to soldering and battery handling. - Creating a troubleshooting section for common issues encountered during assembly. Ideal Candidate: - Significant experience in electronics, STEM education-related writing, or DIY projects. - Proficient in creating visually appealing diagrams using tools like Inkscape, Illustrator, or Canva. - Familiarity with soldering techniques and audio electronics is highly desirable...

...auto-retracting ceramic blade for opening cartons. Now I need to see it come to life in the form of one or two fully working prototypes that prove every feature actually functions. Functionality and quality are my top priorities. The prototypes have to write cleanly, shine a steady laser, and retract the blade the instant pressure is released. To make that viable all day, battery life and a convenient USB-C (or similarly compact) charging solution are non-negotiable. Safety is equally critical: the laser must include recessed button for activation, and the ceramic blade mechanism must lock away reliably inside the body. The housing should showcase a seamless blend of brushed aluminium and stainless steel so it looks and feels like professional surgical instrumentation wh...

...inches—no compromises on that vibrant contrast. This will be a reading-only tablet, so efficiency, eye comfort, and battery life have priority over raw processing power. Wireless connectivity is essential for loading books and updates; Wi-Fi is mandatory, Bluetooth is optional. In addition, I want physical page-turn buttons on the bezel so users can flip pages without touching the screen. Touch input itself is welcome but not a requirement. Here’s what I’m expecting from you: • Source and validate the 11″+ AMOLED display and its driver board • Design the main PCB around a low-power processor that can render EPUB and PDF smoothly • Integrate Wi-Fi, power management, and a battery capable of at least 10 hours of continuous readin...

I’m rolling out a new line of batteries and need a cohesive visual identity ac...Print-ready artwork for the carton box (AI or PDF on the final dieline, 300 dpi, CMYK). • A matching sticker design sized to the label template I’ll supply. • Both pieces must feature an “Advantage” section exactly as I provide the text, keeping room for any safety icons that may be required later. • Source files (Adobe Illustrator preferred) and outlined fonts. My product is battery (lithium and sodium battery)(LiNa+),I need logo for it ,simple and easy to remember)others I don’t have requirement I’ll share the logo, precise dimensions, and copy—including the Advantage text—once we start. Let me know your turnaround time and an...

I own a garage website currently sitting on my GoDaddy hosting. The code base is Custom HTML/CSS and, unfortunately, the original developer is now charging extortionate fees while keeping hold of the files and database. I need a skilled web developer who can: • Scrape or export every line of code, text, and image from the live site • Re-create the database so I regain full control of customer bookings and quotations • Deliver an enhanced design—fresh look, modern UI, fully mobile responsive • Add a dedicated HGV calendar so lorry MOT slots can be managed separately from standard vehicle work • Integrate Elavon for secure online payments alongside our existing booking and quoting flow The current system already lets customers book repairs and ...

...manufacturing-ready (DFMA) IP67 enclosure and rugged external harness for a compact electronic device operating in dusty/humid environments, 0–50°C, and handled ruggedly. 1. Enclosure: - Target IP67 - Approx internal usable size: 70 x 40 mm - Power LED visible from outside (sealed lens/light pipe/window) - External ON/OFF switch while maintaining IP67 - Robust internal retention for PCB + battery 2. Harness: - 8 wires, approx 4 cm - One side to PCB inside enclosure; other side external with: USB-C charger, DC male power plug, 2 LEDs - Must withstand 10–20 connect/disconnect cycles per day - Provide rugged PCB connector + strain relief + IP67 cable entry (gland/grommet/overmold) 3. Additional requirements: mechanical feedback on PCB design (co...

I am looking for a designe...charger and cable. Mounting: Include mounting holes for secure anchoring to the ground or floor. Optional: Provide a movable option. Power Input Area: Clear cable entry points for secure electrical connections. IP Rating: Ensure the enclosure has an IP54 or higher rating for dust and water resistance (suitable for outdoor use). Cooling Vents: Proper air circulation to prevent overheating during charging. Design: Modern, sleek, and professional design that fits urban or residential environments. Branding: Provide space for logo or branding customization. Deliverables: Design Blueprints: 2D/3D drawings with exact dimensions. Material Specifications: List of recommended materials with benefits. Cost Estimate: A rough cost estimate for production based on y...

I need to reproduce every technical element of a published study on an Electric Vehicle dual-charging system inside MATLAB/Simulink. That means rebuilding the paper’s mathematical models, running the same simulations, and then matching the resulting plots, tables and efficiency numbers through solid data analysis. I already have the PDF and a partial set of parameters (converter ratings, battery specs, and a few controller gains), yet several key values are missing. Your first task will be to track down or logically derive those gaps so the model behaves exactly as described by the authors. You’ll be working in MATLAB R2025a (Simulink + Simscape Electrical). Each subsystem—DC-DC converters, dual-port charger topology, control loops, and SOC estimation&mdas...

...library of pre-programmed behaviors the robot can cycle through on its own. If you have clever tricks for gesture sensing or other inputs, I’m open, but they’re not essential for this first build. Mechanical integration is critical. We’ll need custom mounts or 3-D-printed brackets for the arm servos, a neat cable path that doesn’t affect balance, and clean access to the MiP’s power rails or a new battery pack if required. I can supply CAD files of the shell if that helps. Let’s outline milestones together—hardware selection, PCB/loom design, arm prototype, firmware, voice/sound personality scripts, and final integration—so I can see measurable progress. I’m happy to jump on calls, share photos, and overnight parts as nee...

I am adding real-time audio and video to an existing React Native application and need someone who is already comfortable with the LiveKit SDK. The goal is simple: a reliable one-to-one and group calling experience that works seamlessly on both iOS and Android. You will receive the current code-base, Figma screens, and the LiveKit c...LiveKit’s audio/video functions • Basic call UI: join screen, in-call view, mute/camera toggle, end call • Thorough README and inline comments so the team can extend the feature on its own • Final build validated on a real iOS device (latest iOS version) and a real Android device (API 31+) Once the feature passes our internal QA test—stable connection for at least 30 minutes and acceptable battery/CPU usage—we c...

The embedded system comprises 2 STM32 boards connected to their own 7 sensors, 1 motor, and 3 relays. Each is connected to the central Raspberry Pi 4 board. The RIGHT STM32 board also has a TFT ST7789 2inch display. The Raspberry Pi has its own 5-inch display (connected via HDMI) and is connected to a battery BMS via UART and controls the ON/OFF switching of the exoskeleton system driven via a 48V 10A relay. The Raspberry Pi also controls the operation of a 5V air-pump via a relay able to deliver 1.5A We require the following tasks to be carried out: user interface (GUI) developed for the STM32 to drive the ST7789 display. developed for the Raspberry Pi display. for the Right-leg STM32 microcontroller. for the Raspberry Pi. for the Left-leg

I have a near-final Life Cycle Assessment covering a hybrid solar-PV, onshore wind and lithium-ion battery installation in a UK territory, and I need an experienced practitioner to stress-test the impact assessment results section before it goes to stakeholders. Your review should zero in on that chapter, checking that the chosen impact categories, characterisation models and interpretation are not only technically sound but also crystal-clear to non-specialists. I am especially concerned about how the findings are laid out and whether the narrative leads naturally from raw data to conclusions. Key points I want you to address • Impact assessment results – consistency with the inventory and ISO 14040/14044 rules. • Clarity – readability of tables, units...

...flags human intrusion in low-light and daylight conditions, minimising false positives from pets. • Alert mechanism: build the software bridge to push break-in alerts through a companion mobile app/API along with timestamped snapshots or short clips. A local siren should activate simultaneously. • Navigation basics: configure autonomous roaming between waypoints, returning to a charging dock when the battery dips below threshold. ROS 2, SLAM, or simpler lidar-based mapping are acceptable—whichever you feel best suits a first-gen prototype. • Proof and testing: a short video demo plus log files that show detection accuracy and alert latency inside a typical apartment setting. I’m keeping cleaning, concierge, and other features out of scope ...

...This is not a new module from scratch. The goal is to fix and harden the existing module, simplify where needed, and make it safe and reliable. CURRENT SETUP - OpenCart 3.0.x (tested on 3.0.4.0) - PHP 8.1+ - Custom frontend theme with a custom checkout (not default OpenCart checkout) - Existing Offline Credit Cards module (legacy module, already modified) - Manual card processing (no automatic charging) CURRENT PROBLEMS - Offline Credit Card payment does not work reliably with the custom checkout theme - Frontend confirm button / JavaScript flow is unstable or incompatible - Module was designed for old OpenCart default checkout - Too much frontend dependency for a manual payment method WHAT I NEED 1) Frontend behavior The developer should recommend and implement one of the...

I need the pin-to-keep behaviour added to my existing Android text-clip list. A user should be able to touch-and-hold any text clip in the RecyclerView; that gesture toggles a “pinned” state. Pinned clips remain in the local Room/SQLite store indefinitely, while every unpinned clip should be purged exactly one hour after its creation time. I’m fine with the standard Android UI conven...Deliverables • Updated source code with the pinning logic and expiry scheduler • Any new database entities or migrations applied • Brief markdown file explaining key classes and how to test the one-hour purge Acceptance When I long-press a clip it shows as pinned, survives app restarts, and never deletes automatically. Unpinned clips vanish on schedule without imp...

Instructions Write a essay about 4 -5 pages in length (not including title page, images, or bibliography) about the following subject using any reliable sources includ...Station (ISS), including these subtopics: What are the ISS requirements for power and data? Are there any issues with the choices made by designers (e.g., solar cell material, solar panel structure and size, type of computers and memory storage)? What challenges has the ISS faced in terms of electrical power and data handling? How does the ISS receive power when the station isn't in sunlight? What battery technologies have been used on the ISS? How would you have designed the system differently? Use either the Turabian or APA format for references. Your paper will automatically be run through the Turnitin plag...

I’m ready to commission the first release of a security-focused mobile application, launching on iOS before we expand to Android. The core of the product is continuous GPS tracking that must keep running in the background without draining the battery or being shut down by the OS. To protect sensitive medical data every byte stored on-device has to be encrypted and locked behind biometric authentication (Touch ID / Face ID) with an optional 4- to 8-digit passcode fallback. When pre-set conditions are met—location reached, time elapsed, or user action—the app should automatically issue push notifications to the user (and later to caregivers via a secure service we will integrate). Security is non-negotiable: please design with Secure Enclave, Keychain storage, ...

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...Perform **building measurement, façade inspection, and cleaning** * Maintain stability while water is flowing * Navigate close to structures safely * Operate with **minimal human intervention** #### You must define: * Drone type (multi-rotor / hybrid / tethered / swarm options) * Payload & weight calculations * Water delivery system design (pump, pressure, tubing, balance) * Power management (battery vs tethered power) * Sensors (LiDAR, stereo vision, ultrasonic, IMU, GPS RTK, cameras) * Collision avoidance * Wind resistance & stabilization methods * Fail-safe mechanisms --- ### 3 AI & Autonomy Architecture (MANDATORY) This is **not optional**. You must design the **AI brain** of the system, including: #### AI Methods * Computer Vision (façade de...

I have a nearly finished schematic and two-layer board for a small dual-battery embedded system and want a second set of expert eyes before I send it off to fabrication. The design uses an LM393 for battery-level comparison, an OR-ing network for seamless battery switchover, a handful of dividers and pull-ups, plus some indicator LEDs. What I need is a focused design-for-manufacture sanity check, not a ground-up redesign. You’ll receive the PDF schematic, the native PCB layout files, and a short note describing the intended behaviour of each block. Please comb through the schematic first, flagging anything questionable in the OR-ing path, comparator stage, divider ratios, pull-ups, or LED logic. After that, glance over the layout—power routing, grounding s...

I’m looking for an experienced PCB design engineer to create a compact PCB that integrates LTE and GPS functionalities in a single module. The design must include onboard antennas for both LTE and GPS, a charging circuit, and debugging options. All other design and component details will be discussed over chat. --- Functional Features (Antenna Design Requirements): The PCB should include onboard antennas for both LTE and GPS, similar to the integrated antenna design used in ESP32 modules. Antennas must be PCB-etched or chip-type, without external connectors. Proper RF impedance matching (50Ω) and matching networks should be implemented for both antennas. Ensure antenna isolation, ground clearance, and tuning for optimal LTE and GPS signal performance. Include ant...

A NRF52 based low power consumption BLE tag with 4G and GPS capabilities. Features: Microcontroller: NRF52, any GPS + 4G module operable in south america Power Supply: Lithium-ion Battery (600mAh+, auto-switching) Communication: Bluetooth + GPS + 4G Additional Components: RGB LED and Buzzer Reprogramming Method: SWD The board must consume the absolute minimum power (~10uA) until GPS + 4G is enabled via software.

...paid digital advertising services across Google Ads and Meta Ads (Facebook & Instagram) to generate qualified leads for ECL Energy’s residential solar and solar + battery systems in Tasmania. Platforms Included: • Google Ads (Search + Display / Remarketing) • Meta Ads (Facebook & Instagram) 2. Campaign Setup (One-Off) Tracking & Foundations: • Confirm GA4, Google Ads conversion tracking, Meta Pixel and call tracking • Verify tracking is firing correctly prior to launch Campaign Creation: • Build Meta Ads campaign with 4 ad sets (Rebate, Savings, $0 Upfront, Local Experts) • Build Google Search campaigns for Solar and Solar + Battery • Apply Tasmania (Hobart + statewide) targeting Ad Assets • Load all approved co...

I'm looking for a creative design for a small, solar-powered phone charger shaped like a star. It's for my daughter's school project. Requirements: - Emergency charging use - Lightweight design - Pocket-sized, potentially keyring-compatible Ideal skills and experience: - Product design - Solar technology knowledge - Experience with lightweight materials

I need a clean, visually engaging catalogue that presents the full specification of my new electric golf trolley. The star feature is its American award-winning lithium battery, so one spread must focus on battery lifespan with clear, persuasive copy supported by simple infographics or icons. Other key points the catalogue must capture: • Five colour options—Red, Blue, Green, Black and White—each shown with accurate swatches and lifestyle photos. • A transparent, acrylic weather-shield that protects both golfer and buggy; a short paragraph and image call-out will do the job. • A “Book a Demonstration” section that explains how to schedule an on-course trial. I will provide raw text, images of the trolley in each colour, and basic t...

I want to bring to life a lightweight iPhone app that can recognise scratching episodes just from the handset’s own motion sensors—primarily the accelerometer and gyroscope. My vision is for everything to be processed on-device...cost covering coding, a minimalist SwiftUI interface, and unit/UI testing on recent iPhone models. • Notes on past projects or research that show relevant experience—anything involving motion classification, health monitoring, or activity recognition will help me gauge fit. If you can outline milestone deliverables and expected acceptance criteria—for example, detection accuracy thresholds and battery impact—that will speed up our kickoff conversation. I’m eager to get started and iterate quickly, so please share yo...

I have an IRB-approved protocol and SAP psychometric study of a digital cognitive wellness battery Scope of Work (must be included in proposal) Data QC and cleaning Validate export integrity, missingness review, recodes per data dictionary Produce analysis-ready dataset + QC notes (queries list) Primary reliability analysis ICC(3,1) with 95% CI Run two ICC approaches for verification (ANOVA-derived ICC and psych::ICC output) and confirm they match as expected Secondary analyses Domain/task ICCs with CIs Practice effects (paired tests + effect sizes) Usability (SUS/TAM) summary Completion rates, validity flags, session duration Exploratory correlations with SLUMS Deliverables Reproducible R repo (scripts, README, session info, locked outputs) Word-ready statistical report (tables + ...