BluetoothJobs

Jeg ønsker at overføre blinklys fra bil til trailer trådløst via Bluetooth. I trailer stikket på bilen monteres en Bluetooth sender og på traileren monteres en Bluetooth modtager, så man bliver fri for kabel imellem bilen og traileren. Bluetooth modtageren på traileren drives af et 12 volt batteri der oplades via en solcelle. Dette vil løse de problemer der altid opstår med løse forbindelser i stikket. Jeg ønsker en demo model som jeg kan teste på min bil, indkl. Produktions beskrivelse program osv da jeg selv har forsøgt men ikke kan få det til at virke.

I need a clean, reusable .NET MAUI framework that runs on both Android and iOS. The core of the job is a Bluetooth Low Energy driver focused on monitoring-and-notification use cases, wrapped in a virtual communication layer that speaks a fully custom protocol next to standard BLE read/write/notifications characteristics Here is what I expect: - Knowledge AND EXPERIENCE how to run/build BLE MAUI applications, please add this in your response, might need communication • A solution skeleton in MAUI with well-structured projects for shared code, platform specifics, and tests. • A BLE service that discovers, connects, subscribes, and streams characteristic changes, exposing them through events/observables suitable for reactive UI updates. • The virtual channel: enc...

...the moment a client pays, with reminders for unpaid items • Export and reporting options so I can see totals, outstanding balances, and payment history at a glance What Your Software Will Have Billing Barcode scan to add items Auto price, tax, discount Cash / UPI / Card payment Print invoice GST optional on bill Barcode Generate barcode for products Print barcode labels Scan using USB / Bluetooth scanner or mobile camera Inventory Add garments (size, color, brand, rate) Stock in / stock out Low stock alert Multi-Shop Create multiple branches Separate stock per shop Central admin dashboard Reports Daily sales Profit report Stock report Shop-wise report Users Admin Staff login Permission control Cloud Works on PC + Phone Data saved online Access anywhere When you repl...

I’m developing a compact medical-grade board that will sit at the heart of a new vital-signs monitor. Th...60601-1/-2 spacing, leakage, and isolation requirements • Brief design report outlining signal paths, grounding strategy, and any filtering or isolation techniques you used Acceptance criteria: 1. All three vital-sign channels are routed with separate analogue grounds and meet less than 5 µV/√Hz noise at the ADC pins. 2. Board size stays within 60 mm × 80 mm while leaving room for a future Bluetooth module. 3. Files import cleanly into JLCPCB and PCBWay viewers with no DRC errors. If you have prior experience with medical electronics and can demonstrate low-noise analogue design skills, I’d love to work together on this project and ite...

...brings reliable wireless communication to a new consumer-electronics device. The work begins with schematic capture and component selection, moves through PCB layout, and finishes with ready-to-manufacture Gerbers, a complete BOM, and clear test guidelines. The radio link is the heart of the design, so careful RF layout, antenna matching, and regulatory-compliant power levels are essential. Bluetooth LE is my preferred protocol, though I am open to Wi-Fi or other 2.4 GHz solutions if you can demonstrate lower cost or better battery life without sacrificing performance. Please plan on: • Delivering editable design files in Altium, KiCad, or Eagle, plus PDFs for quick review • Calling out any critical components with long lead times and proposing substitutes whe...

...as small and light as possible. The idea is that a bow hunter can easily track and find their game after a shot is taken. This would ideally be the most ethical form of locating an animal to ensure that it is not gone to waste. Here’s the functionality I have in mind: • The device gathers GPS coordinates, pushes them to the user’s phone over low-energy Bluetooth, and refreshes quickly enough to feel truly live. • When Bluetooth isn’t possible or range is lost, a secondary short-range radio link should take over so position updates continue (I’m open to the specific protocol you recommend). • Everything must be optimized for battery life, ruggedized for rain and mud, and small enough to be fit into a broadhead style design f...

Project: ESP32-Based Talking Plush Toy – Prototype Development Project Overview I’m building a screen-free talking plush toy for kids (3–7 years). The goal is to create a working prototype (V1) that demonstrates: Calm audio interaction Simple button & Bluetooth (BLE) control Safe, battery-powered operation This is prototype-only, not mass production. Scope of Work The freelancer will: Build a working ESP32-based prototype Implement audio playback (pre-recorded voice files) Support button-based triggers Implement BLE connectivity (basic commands from phone) Ensure safe power & insulation for a prototype Share code + wiring diagram + build instructions Core Features (V1) ESP32 dev board Pre-recorded audio playback (stories, phrases) 1–2 physical buttons...

I want to build a compact, two-way Bluetooth audio interface for a HAM radio. The core goal is a 2-way bridge between the radio and a realtime camera running on a linux board via buletooth. Digital or analog volume adjustment is needed Device must be battery and/or 12V DC operated, with DC12V charging battery if present What I need: • Full-duplex transmit and receive so both the radio’s microphone and speaker lines travel over Bluetooth. • A design that plays nicely with typical HAM radio mic/headphone levels. • Optional Radio PTT Sense to mute microphone input if PTT button not pressed • Stable pairing, clear voice quality, and minimal latency. Please provide: 1. Schematic and bill of materials (module choice is up to you; CSR, ESP32, or similar...

Part-Time Technical Tester (Windows/Linux/Ubuntu) – Screen Recording + Voice We are hiring a tech-savvy tester based in India to test our Kinivo Bluetooth USB adapters (BTD500, BTD400, BTD-LR-530) across Windows, Linux, and Ubuntu. The role involves checking compatibility, identifying whether drivers are required, installing drivers when needed, and clearly recording and explaining the entire process through screen recordings with voice narration. We’re looking for someone comfortable troubleshooting systems who can communicate clearly in fluent English and present steps professionally on video. Responsibilities: - Test adapters on Windows, Linux, and Ubuntu - Verify plug-and-play support, pairing, and stability - Install drivers (if required) and explain the process -...

I need a developer who can take our existing whole-home scent diffuser hardware and give it a fresh, branded mobile experience on both iOS and Android. The current units already pair over Bluetooth and can switch to Wi-Fi once configured; the new app must replicate that connectivity, then layer in a cleaner interface and a few extra smarts that set us apart from the generic software we use today. Core features we have in mind: • Customizable scent schedules that let users pick days, times, and intensity levels • Real-time usage statistics so homeowners can see oil consumption and filter life at a glance • Full remote control—start, stop, boost, or mute a diffuser from anywhere once Wi-Fi is enabled The firmware and protocol documentation are ready, and I...

I want to ship a lean Android + iOS application that can 1) establish a Bluetooth Low Energy link to my peripheral and move data back and forth, and 2) instantly push out a user-defined BLE packet the moment the phone detects an incoming call. The BLE work is classic data-transfer: discover the device, pair, subscribe to characteristics, then read/write packets on demand. Stability in the background is critical; the link must stay alive (or reconnect quickly) when the screen is off. When a call arrives the app should listen to the system broadcast (Android) or CallKit/VoIP push workaround (iOS), pull the string the user previously defined, and write it over the existing BLE connection without visible delay. Please send a concise, detailed project proposal outlining: &bull...

I'm seeking a developer to create a Bluetooth-enabled sports scoreboard prototype specifically for tennis/padel/pickleball. This scoreboard should be able to track points. Key Requirements: - Bluetooth connectivity for easy pairing with smart watches. - Accurate point tracking for tennis matches - User-friendly interface for displaying scores Ideal Skills and Experience: - Experience in developing Bluetooth-enabled devices - Familiarity with sports scorekeeping, especially tennis - Strong UI/UX design skills Please provide relevant portfolio work and experience. Looking forward to your bids!

I need an end-to-end application that runs on iOS, Android, and the web and pairs seamlessly with our Bluetooth-enabled medical devices. The app must pull every piece of data the hardware streams—heart rate, blood pressure, blood oxygen level, temperature, respiration rate, ECG traces, and stethoscope audio—store it securely, and turn it into a clear, shareable report for both patient and clinician. Real-time communication is just as important. I want patients to launch an HD video or audio session with their doctor from inside the app, include in-call chat, share their screen for document review, and have the entire consultation automatically recorded (with consent) for later playback. The stethoscope feed should be handled like a live audio channel: allow the docto...

...(per product) • 120–180-word main description • 4–6 bullet-point feature list • Tabular spec section (model number, dimensions, weight, power, connectivity, etc.) • Optimised file delivered in either Word or Google Sheets, ready to paste into the e-commerce CMS Tone & Style Professional and technical. Prioritise factual clarity over sales hype, use correct terminology (USB-C, IP68, Bluetooth 5.3, etc.), and maintain consistency across the entire set. Acceptance Copy must be original, fact-checked against the provided specs, and run through a basic plagiarism scan. Minor revisions for style or accuracy are part of the project. If you’re comfortable writing for tech-savvy audiences and can turn complex specs into reader-frien...

Busco a una persona con sólida experiencia en IoT y algoritmos de inteligencia artificial para crear un sistema domótico completo. El proyecto incluye: • Diseño y prototipado del hardware: placa electrónica, selección de sensores / actuadores y conectividad (Wi-Fi o Bluetooth) listos para producción a pequeña escala. • Firmware modular que permita futuras actualizaciones OTA. • Aplicación móvil (iOS y Android) para la configuración y el control remoto del dispositivo. • Integración fluida con asistentes de voz —el sistema debe poder recibir y ejecutar comandos vía Alexa, Google Assistant u otro asistente equivalente. • Documentación técnica (esque...

We are seeking an experienced technical writer with a solid background in electronics to update and improve the instructional documentation for our DIY Bluetooth Speaker Kit. The kits, used in schools and STEM programs, include pre-assembled circuit boards and require basic soldering skills to assemble. The documentation must support both the electronics assembly process and provide guidance for student customization. Responsibilities include: - Revising existing instructions for clarity, especially for 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 ...

...l’automatisation domestique. L’objectif est de concevoir une carte compacte capable de dialoguer, via des modules de communication sans fil, avec divers capteurs et actionneurs déjà présents dans la maison ou ajoutés ultérieurement. Le travail inclut la phase matérielle (schéma et PCB), le développement du firmware et les tests de communication. Les protocoles sans fil à privilégier (Wi-Fi, Bluetooth Low Energy, Zigbee, etc.) pourront être définis selon la portée, la consommation et l’interopérabilité requises. Livrables attendus : • Schéma électronique complet et fichiers PCB prêts pour fabrication • Code firmware document&ea...

...device and need a hardware specialist who can take it from concept to working prototype. The display has to be an AMOLED panel of at least 11 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 r...

I need a 3D design for a keyboard case that will allow a smartphone to clip or attach to a Rii i4 Bluetooth keyboard. Requirements: - Material: Plastic - File Type: STL - Design Preference: Slim and compact Ideal Skills & Experience: - Proficiency in 3D modeling software - Experience with designing for 3D printing - Knowledge of ergonomic design principles

...microphone, speakers, Bluetooth and the built-in camera work flawlessly; the unit does not rely on a touchscreen, so please make sure everything is fully operable through physical controls and Bluetooth interfaces. • Produce a clean, reproducible build environment (bash scripts or a Dockerfile are fine) along with an incremental OTA update mechanism. • Deliver a flashable image and a brief technical report summarising every change to kernel, framework and vendor partitions so my team can pass compliance review. Acceptance criteria 1. The image boots reliably on the target hardware, shows no crashes after 24 h continuous soak. 2. Device boots with SELinux enforcing and passes SafetyNet-like internal checks without Google services present. 3. Microphone,...

...developer to help us build a high-quality mobile app (iOS & Android) for a connected hardware product. This is not a generic app. The project involves real-time interaction with a physical device, a strong focus on UI quality, and support for remote control with video and audio. What you’ll be working on A Flutter app for iOS and Android Implementing pixel-accurate UI from our mockups (Figma) Bluetooth Low Energy (BLE) communication with a custom device Real-time control features Remote interaction using video and audio (WebRTC or similar) Polishing animations, transitions, and overall UX UI matters a lot here We already have mockups and a clear design direction. Your job is to turn those mockups into a polished, production-ready app. Attention to detail is i...

...possible to create administrator users nor insert the local user in the administrators group - Command “netplwiz” is locked by Administrator. - Access to the registry has been disabled (every time you edit you get the error "Cannot edit....") - Local Administator user is disabled. - Resource sharing via local network is disabled; - USB ports are disabled: no external media can be read/connected; - Bluetooth connections are not enabled - No changes on "User Account Control Setting", getting the error "Your system administrator has blocked this program" - No changes on "Group Policy", getting the error "You don't have permission to perform this operation - Access denied" - No changes on "Local Group Policy"...

I need a custom-built Android application that lets me override every major device identifier for privacy testing purposes. The app must spoof the IMEI (confirmed by *#06#), serial number, all MAC addresses (Wi-Fi, Bluetooth, Ethernet), IP and port data, GPS location, and the Google Play Store email ID. Once a value is changed it has to survive reboots and appear system-wide—Settings, third-party apps, and any common USSD or diagnostic code must all report the spoofed data, not the genuine one. Because I want to use this on any handset or tablet, it should run across all Android versions and models. If root, Magisk modules, Xposed, or similar low-level methods are required, build those steps into the solution and document them clearly. A simple UI where I can enter custom val...

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.

...parents can create/manage at least one child profile and view brushing data such as how long and how many times their child has brushed, with a simple history view and basic stats (daily/weekly totals and average duration). We prefer a clean, scalable build (Flutter or React Native is fine) that stores session data reliably (local storage is okay for MVP; cloud sync is a plus) and is structured so Bluetooth toothbrush connectivity can be added later. This project must be completed within 3 weeks, and our maximum budget is $550—please do not reply/apply if you cannot meet both the timeline and budget....

I already have the hardware in hand (see the exact unit here: ) and need it configured into a rock-solid link for a DJI Matrice 400. The goals are simple but non-negotiable: • The device must pair over Bluetooth with smartphones and tablets, then feed telemetry and video to the Matrice in real time. • The whole chain has to stay online even when nearby frequency jammers or other RF noise are present. • Live status dashboards and alerts are required so I can see, at a glance, that every hop in the link is healthy. Here’s how I picture the collaboration: 1. You review the hardware specs and choose the most resilient protocol settings (frequency-hopping, spread-spectrum, encryption, power levels, antenna layout, etc.). 2. You walk me through the exact

I already have a fully textured 3ds Max model plus short demo videos ...that runs on Android. The user must be able to pinch-to-zoom, orbit, and pan the model smoothly; two on-screen buttons will also zoom the camera and simultaneously transmit predefined Bluetooth 5.0 packets to my external hardware. I can deliver the .max file along with the precise hex strings for the Bluetooth commands. The build should render cleanly on mid-range phones and pair reliably with any Bluetooth device. Acceptance: • The app installs and runs on one Android device. • Touch gestures perform as shown in the videos. • Pressing either button updates the camera view and sends the correct Bluetooth packet within one second. • Final delivery includes full...

I need a complete mixed-signal design for an eight-channel Bluetooth communication system: four inputs for data acquisition and four outputs for actuation or stimulation. The unit must span a wide frequency range—everything from standard audio bandwidth up into the low-MHz region—while keeping each output capped at 5 V, 5 mA so it remains safe for direct human-facing applications. Because the project will handle live data, the entire chain has to support real-time streaming over Bluetooth Classic; latency has to stay low enough that an audio-rate round-trip remains perceptually seamless. Inside the enclosure, you can split the path however you wish—purely analog front ends feeding ADCs, DSP blocks, then DACs and analog output buffers—so long as the ...

...table, and lets me add a rupee-value discount before totalling up. At the press of a button the bill prints to a Bluetooth thermal printer in a simple, clean layout—just the item list and the grand total. No shop name, GST or other headers. The same bill should also be saved locally as a PDF and be shareable instantly through WhatsApp. Every bill needs to be stored in an on-device history that I can browse inside the app or export later as CSV/PDF for wider reports. All features must stay fully functional without an internet connection. Deliverables • Android APK plus readable source code • Handwriting-to-text entry for item, qty, rate fields • 58 mm / 80 mm Bluetooth thermal printer support with the exact receipt layout described •...

I need a 4-layer PCB layout that will drive a new consumer-electronics device. The board footprint is roughly 8 inches on its longest side and must sail through my manufacturer’s DFM/DFT checks without a single revision request. Core circuitry includes a microcontroller at the heart, a collection of digital and analog sensors, Wi-Fi & Bluetooth modules, a microphone, speaker, relay, display interface, GUI memory and associated logic. Please route with proper impedance control, isolation for the RF section, and attention to audio trace integrity so that EMI is kept to a minimum. Deliverables • Full Altium, KiCad or Eagle design files (your choice) • Gerber, drill, pick-and-place and BOM ready for turnkey assembly • Layer stack-up, controlled-impedan...

...that **forces all SIP and SIM call audio through the 3.5 mm wired headset jack only**, enabling **physical TRRS loopback audio bridging**, with **DSP fully disabled**. ## Technical Requirements ### Audio Routing (Critical) * Force **wired headset / wired headphone** as the **only valid**: * Audio **output** device * Audio **input** device * Disable or deprioritize: * Speaker * Earpiece * Bluetooth SCO / A2DP * USB audio (if it steals routing) **Files to override (systemless via Magisk):** * `/vendor/etc/` * OR `/vendor/etc/` (older builds) --- ### DSP / Audio Effects (Critical) Disable **all voice processing** that interferes with loopback audio: * Acoustic Echo Cancellation (AEC) * Noise Suppression (NS) * Automatic Gain Control (AGC) **Files

...både på skjerm og som PDF. • Mulighet for rabattkuponger som jeg kan opprette fra et enkelt admin­panel. Utlåsmekanikk Når bestillingen er betalt, skal kunden kunne låse opp kajakken ved å skanne en QR-kode på stedet med mobilen. Jeg trenger derfor en lettvektig QR-løsning (web-app eller integrert modul i nettsiden) som kommuniserer med låsen via det API-et jeg stiller til rådighet. Ingen Bluetooth eller NFC kreves. Øvrige forventninger – Responsivt design som bevarer det klassiske uttrykket på mobil, nettbrett og desktop. – Rent, forståelig kodeoppsett (HTML/CSS/JS + valgfri backend-stack) som jeg kan vedlikeholde. – Kort opplæring eller enkel dokumentasjon ...

I need a full-stack hardware design for an ESP32-based IoT product that is ready to hand straight to a contract manufacturer. The board must integrate a temperature sensor, a humidity sensor, a capacitive-touchscreen LCD for the user interface, on-board Wi-Fi and Bluetooth connectivity, and a coil-based wireless-charging power stage with all supporting power-management circuitry. Here is what counts as “done” for me: • Complete schematics, clearly organised and annotated • Multi-layer PCB layout optimised for RF integrity, touchscreen noise immunity and wireless-charging coil placement • Manufacturing package: Gerbers, pick-and-place, drill files, tested BOM with alternates, and assembly notes • Firmware bring-up checklist so my internal team ...

1. Bluetooth module must support Bluetooth 6.x/ Reccomended: nrf54l15-me54bs0 2. Secure pair with Bluetooth form Android 3. Get distance information between Bluetooth module and Android Phone (Bluetooth 6.x support this) and display it on the phone 4. Make a transparent connection between Android application and Bluetooth module UART port. Message sent to the Bluetooth module must be forward to UART port of the Bluetooth module. Message sent on UART port of the Bluetooth module must be forward and displayed to the android application 5. Confirm Bluetooth a secure connection with android device using a specific UART message 6. You must provide apk file and source files for android application 7. You must provide firmware...

I would like a working prototype of a battery-powered counter that communicates over Bluetooth Low Energy and shows key information on a tiny OLED. The design can revolve around an ESP32 or any comparable BLE-capable MCU, as long as the final code is clean, well-documented, and handed over with the hardware. Core behaviour • A single push-button increments an internal counter. • Every time the value changes, a BLE GATT characteristic must notify connected clients. • A second characteristic accepts a “reset” command from the mobile app to zero the counter. • Each unit carries a factory-set, unique Device ID. This ID is shown on the OLED together with the live counter value, and it is also encoded into a QR code that the companion app scans for...

...både på skjerm og som PDF. • Mulighet for rabattkuponger som jeg kan opprette fra et enkelt admin­panel. Utlåsmekanikk Når bestillingen er betalt, skal kunden kunne låse opp kajakken ved å skanne en QR-kode på stedet med mobilen. Jeg trenger derfor en lettvektig QR-løsning (web-app eller integrert modul i nettsiden) som kommuniserer med låsen via det API-et jeg stiller til rådighet. Ingen Bluetooth eller NFC kreves. Øvrige forventninger – Responsivt design som bevarer det klassiske uttrykket på mobil, nettbrett og desktop. – Rent, forståelig kodeoppsett (HTML/CSS/JS + valgfri backend-stack) som jeg kan vedlikeholde. – Kort opplæring eller enkel dokumentasjon ...

...både på skjerm og som PDF. • Mulighet for rabattkuponger som jeg kan opprette fra et enkelt admin­panel. Utlåsmekanikk Når bestillingen er betalt, skal kunden kunne låse opp kajakken ved å skanne en QR-kode på stedet med mobilen. Jeg trenger derfor en lettvektig QR-løsning (web-app eller integrert modul i nettsiden) som kommuniserer med låsen via det API-et jeg stiller til rådighet. Ingen Bluetooth eller NFC kreves. Øvrige forventninger – Responsivt design som bevarer det klassiske uttrykket på mobil, nettbrett og desktop. – Rent, forståelig kodeoppsett (HTML/CSS/JS + valgfri backend-stack) som jeg kan vedlikeholde. – Kort opplæring eller enkel dokumentasjon ...

...communication between camera → AI processing (phone/cloud) → glasses. Secure, privacy-first data handling, with ephemeral processing by default. 2. Hardware Design & Integration Selection of a suitable mini camera module optimized for OCR readability, power efficiency, and discretion. Recommendation or design guidance for the necklace form factor, including battery and connectivity (e.g. Wi-Fi Direct / Bluetooth). Guidance on integration or prototype-level assembly of the hardware components. 3. System Integration An end-to-end working prototype demonstrating seamless functionality between: Necklace/button camera (visual input) Smartphone (AI processing hub) Even G2 smart glasses (output) R1 ring (control) 4. Documentation Architecture overview and component c...

Project Description We are looking for an experienced Android developer to build an Android application that connects to a Smart Weight Scale via Bluetooth Low Energy (BLE) using the official AILink (Pingwang) SDK. The app must: Read accurate real-time weight from the scale Display nutrition information (calories, protein, carbs, fat, fiber, etc.) based on food selection and measured weight This is a hardware + SDK-driven project, not a generic Android app. Core Requirements 1. BLE & SDK Integration > Android BLE scanning and connection > Must use AILink SDK & Parsing Library only > Follow Chinese AILink SDK documentation strictly > No custom BLE decoding or reverse engineering 2. Weight Reading > Detect the scale via BLE > Re...

...lights turn on automatically. If we additionally activate the right turn signal indicator, the right auxiliary light will turn off so that the turn signal has more prominence and oncoming drivers can better identify the action the motorcycle is about to make. Elements to Use: This is the part where I hope you can help me. We will use an ESP32 microcontroller. I would like it to have WiFi and Bluetooth, with a good amount of memory since it will have a web server running (for configuring the lights as the client needs) The system will have 6 output lines (15A lights, charging USB, rear light, etc.) Each line will be controlled by D4184 MOSFETs in parallel. It's important that the MOSFETs can operate with PWM so we can dim the lights as needed For every 2 channels we will ha...

I’m ready to move from concept to code on a new Bluetooth-enabled mobile application and need an experienced developer who can take the reins from architecture through store-ready builds. The core idea is simple: the app must discover nearby devices, establish a reliable connection, and exchange data quickly and securely. I’ll share the exact use-case and device specs once we start; for now, assume the usual Bluetooth Low Energy workflows—scan, pair, read/write characteristics, and handle reconnections gracefully. Because my audience uses both iOS and Android phones, I’m leaning toward a single codebase (Flutter or React Native) but I’m open to native if you feel that’s wiser for latency or background-mode restrictions. Whichever route you...

I’m ready to turn a clear functional outline into a polished FlutterFlow application. The core of the job is enabling simultaneous Bluetooth LE connections to both a cadence sensor and a heart-rate sensor, then streaming that data live to the trainee’s phone. Once connected, the app must keep the rider engaged by showing real-time pedaling cadence (RPM), current speed, and a continuous estimate of calories burned. Above those numbers sits a coloured effort bar that fades from gray through yellow to deep red so anyone can see instantly how hard they are working. When a session ends, the rider should land on a neat workout-summary screen and be able to review every previous ride in a daily history view. I would like this data saved to the cloud so history is retained eve...

The goal is to create a straightforward Android application that pairs with my ESP32-based smart bait boat over both WiFi and Bluetooth. From a single screen I want to steer the boat with an on–screen joystick, trigger preset bait-container positions (Half Open, Fully Open, etc.), adjust speed and other numeric parameters, and view a small live GPS mini-map. I will supply the ESP32 firmware protocol; your task is the Android side. Please build the project in Android Studio (Kotlin or Java is fine) and keep your code modular so I can extend it later. ESP-Now, classic Bluetooth, or BLE can be used under the hood as long as the boat can be discovered, paired, and commanded reliably. Deliverables • Compiled APK demonstrating all features with my test boat • ...

I need our existing Android app to talk smoothly to a Bluetooth thermal printer and, while you are in the code, refresh the look of one key report. Integration first: the app must discover, pair with, and print to a standard 58 mm or 80 mm Bluetooth unit. I’m open to the usual brands—Epson, Zebra, Brother—as long as the final APK prints reliably and reconnects automatically after the first pairing. Raw ESC/POS commands or an official SDK are both fine; pick whichever gives the fastest, most stable print. Report revamp next: the data is already there, but the current layout is cramped and hard to read once printed. I want cleaner spacing, clearer section headings, and a hierarchy that looks good on both the in-app preview and the physical slip. No new ca...

...least water-resistant with removable electronics) No bulky or intrusive hardware Light up with programmable light patterns LED array (numbers, logo, panels, or pixel zones) Multiple patterns (static, pulse, wave, chase, etc.) Bright enough for stadium visibility, but not rigid or hot Connect to a phone Bluetooth (BLE is fine) Phone can: Turn jersey on/off Select light patterns Adjust brightness / color Your internal team handles the app — freelancer only needs: Firmware Bluetooth protocol / commands Documentation for your app team What You Do NOT Need From the Freelancer This is critical to state explicitly. ❌ No app UI ❌ No backend ❌ No AI ❌ No cloud ❌ No stadium mesh ❌ No mass-production tooling ❌ No marketing fluff Just: Hardware + firmwa...

...single charge, maintain speed as per the command from ToF sensor and control program, activate the barcode reader + camera as per input from ToF sensor and programmed, and achieve 99.5 % image capture. Web based UI on the MCU that can be connected to a laptop/PC through wi-fi / ethernet/USB. Live data (read/not read, barcode serial number and count) transmission to the Laptop through wi-fi/4G LTE/Bluetooth in real time. Data stored on the MCU - Barcode serial number + Count + GPS Location + image from all cameras + ToF sensor On/Off commands. If you’ve built mobile robots, AGVs, or smart carts before—and you’re comfortable merging computer vision with embedded motion control—I’m ready to dive into the details and set milestones right away. Location...

...printer integration – print instantly through 58 mm and 80 mm Bluetooth thermal printers. • Employee module – add users, assign simple roles, and track their sales activity. UI expectations A modern Material-style interface with 2D icons is essential. I’m fine with starting from solid template layouts as long as colours, typography, and iconography are customised enough to feel branded and friendly. Technical notes – Android-only (8.0+), built in Kotlin or Flutter—whichever delivers smoother Bluetooth printing. – Local storage via SQLite/Room; cloud sync can be added later. – Deliver a signed APK and the full, well-commented source code. Acceptance criteria 1. I can create a GST-ready invoice, print it over B...

Project goal, to create a Bluetooth transmitter that pairs with the insta360 x5 camera and transmits line-in audio via Bluetooth to the camera. I need an experienced Bluetooth-Classic analyst who can hook up an Ellisys BR/EDR sniffer to my setup and hand me clean captures of everything that happens between an Insta360 X5 camera and its Mic Air wireless microphone. Here is where I am right now • I have proved that the camera pairs over BT-Classic, not BLE. • Using an ESP32-A1S I can reproduce the pairing, yet 3 seconds after I start recording, I get an audio anomaly and the entire recording stops. There is no audio saved in that time. What I must understand • Full packet-level flow for both the initial pairing and the ongoing A2DP + HFP/HSP s...

We are looking for a skilled designer to create a case for a Bluetooth speaker kit. The design should accommodate a 40mm speaker, a battery compartment, and a USB charging port and also a wireless charging receiver pad. The ideal candidate will have experience in 3D modeling and CAD design. You will be required to purchase the parts that make up the kit from Aliexpress (which you will be reimbursed) and assemble the kit. There is some basic soldering required. You will have access to a laser cutter to cut and assemble the case and make the necessary adjustments. A bonus would be the ability for photograph the assembly and case. The design will be in 3mm MDF or transparent acrylic Deliverables Design a case for Bluetooth speaker kit Design files in format suitable for las...