Rfid jobs

I need a skilled developer to configure and manage an Impinj R700 reader for us. The primary use will be for writing CAP (Common Alerting Protocol) messages. Key Requirements: - Configure and manage the Impinj R700 reader - Develop CAP messages Ideal Skills and Experience: - Expertise in Impinj R700 or similar RFID technology - Experience with CAP and related protocols - Strong configuration and management skills - Ability to provide ongoing support post-setup Please only bid if you have relevant experience.

# Developer Spec — Exact-Product RFID Filter (58-bit Select) ### Battle Sports · Zebra MC3330xR · UHF RAIN RFID ## 1. Objective Build a small Android app for the **Zebra MC3330xR** that **inventories and locates a single exact product**, distinguishing products whose tag data differs by as little as **one bit**. Operator enters/scans a **UPC**; the app applies a precise **58-bit Gen2 Select pre-filter** so the reader responds to **only that product**, with a proximity readout to walk to it. This does **not** exist in Zebra's free *123RFID Mobile* app, whose pre-filter UI cannot reliably apply a sub-nibble (58-bit) mask. The Zebra RFID SDK exposes the bit-level Select parameters directly — hence a custom app. ## 2. Why 58 bits Tags ar...

...software development company to develop a scalable Enterprise Asset Governance Platform for government entities, utilities, infrastructure operators, and industrial organizations. The platform will initially be developed as a web-based enterprise application, with a roadmap for future mobile applications. Core Functional Requirements Asset registration and classification Asset lifecycle management RFID and barcode integration Role-Based Access Control (RBAC) Asset verification and inspection workflows Approval workflows Audit trail and activity logging Dashboards and reporting REST API integration Multi-language support (Arabic & English) Multi-organization support Cloud and On-Premise deployment Enterprise security and encryption Required Experience Applicants should demon...

I already have three completed boards built around an ESP32, DS3231 RTC, EM18 RFID module, buzzers and indicator LEDs. The schematics and layouts are all in KiCad and functionally proven, but a handful of physical tweaks are still needed before I send them to fabrication again. What I need you to do in KiCad: • Reroute a few traces . * Reszie PCBs * Mark / update silkscreen text • Widen or narrow specific pads and drills so the joints wet better and hand-soldering is more reliable. • Shift certain through-hole parts and add a couple of extra mounting pads called out in my notes. • Adjust overall board outlines on two of the three PCBs so they seat perfectly in their enclosures. Turn-around is short; if you are comfortable in KiCad this should fit easily...

...Two Ultra-Compact Coin Trackers Design two identical coin-sized wearable devices (target size less than 25×25×10 mm) including: * nRF52832 (includes BLE) * SX1262 LoRaWAN EU868 transceiver * PCB antenna * CR2032 coin cell (not rechargable) * USB-C (programming + external GPS connection) * 9-axis IMU * Temperature sensor * Pressure sensor (if space permits) * Battery level monitoring * Embedded RFID/NFC tag (details later) * Waterproof panic push button (3-second press detection) * Epoxy enclosure with attachment hole to append to a ring (careful with the USB, the push button and battery closet) The tracker shall periodically transmit its ID and sensor data using LoRaWAN EU868. No GPS is integrated; an external USB-C GNSS module (also part of this project) provide...

I need an experienced KiCad PCB designer for an ESP32-S3 based audio/IoT prototype board with battery The board will include: - ESP32-S3-WROOM-2 module - PN532 NFC/RFID support - microSD storage - High-quality I2S Class-D audio amplifier for 4Ω 3W–5W speaker - USB-C 5V input - Rechargeable Li-ion/LiPo battery support - Battery charging circuit - Battery protection - Power-path/load-sharing management - 3.3V regulation for ESP32 and peripherals - Proper power supply/filtering for the audio amplifier - 2 rotary encoders/buttons for volume/navigation - Small SPI color display, approximately 1.7–2.0 inch, ST7789 or similar - Display backlight contrrol. - Status LEDs - Test points for debugging and production testing

...save the image of the face. It extracts the raw telemetry (e.g., "Attention: True, Duration: 4.2s") and instantly hashes it. This anonymous data could easily be piped into an immutable ledger, like a Proof of Action (PoA) network, to verify advertising ROI. Transmission:Backscatter or LoRa. For a small retail product (like a cereal box), the film uses backscatter communication or printed RFID to ping a store's receiver. For a large billboard, a small hidden cellular or LoRaWAN module beams the aggregated "Attention Scores" to the cloud. The Economics: Production Costs Manufacturing flexible electronics is very different from standard PCBs. It relies on Roll-to-Roll (R2R) printing (similar to printing newspapers), which means the upfront tooling is exp...

...looking for an experienced Flutter or React Native developer to build two mobile applications for our Smart Milk ATM solution. App 1: Customer Mobile App The customer app should include features such as: User registration and login OTP authentication RFID card registration and management Wallet recharge and balance Milk purchase history QR code support (optional) Notifications Nearby Milk ATM locations Profile management Support/Contact section App 2: Admin/Operator App The operator app should include: Secure login Customer management RFID card management Transaction history Wallet recharge management Milk ATM status monitoring Sales reports Inventory monitoring Machine alerts Basic analytics dashboard Backend Requirements Cloud database (Firebase preferred) Secure au...

RFID & Arduino Prototype Developer Needed (Embedded Systems) We are looking for a skilled developer with hands-on experience in RFID and Arduino-based embedded systems. The ideal candidate should be comfortable working with RFID readers, tags, and microcontroller programming for prototype development. Experience integrating sensors, serial communication, SPI, I2C, and UART peripherals is highly preferred. You should be able to design, test, and troubleshoot both hardware and firmware efficiently. Knowledge of C/C++ programming for Arduino platforms and debugging embedded applications is required. Experience with ESP32, STM32, or similar microcontrollers is a strong advantage. Familiarity with access control, asset tracking, inventory management, or IoT applications...

...health record or feeding detail without extra steps. • For crops, pest and disease alerts as well as growth-stage tracking and production figures have to be easily captured and visualised. I’m open on the technology stack—web, mobile, or a hybrid solution—so long as data entry is quick in the field and reports are easy to read in the office. If you have experience with IoT sensors, barcode or RFID tagging, or advanced analytics, tell me how you would weave those into the workflow. Deliverables • A working application (prototype first, then production-ready build) with a clean, responsive interface. • Secure database setup and basic import/export so I can own my data. • Short user guide and a walkthrough session to be sure my team ...

Hi, I'm a student working on an access control system for our school's IT labs. We already have a working prototype and the firmware/software side handled — what I need is a properly designed PCB in KiCad to replace my breadboard version, since PCB design (especially RF and PoE) is outside my expertise. Requirements: PN532 RFID/NFC reader with antenna (on-board trace or module, your recommendation) ESP32-S3 as main MCU Standing/vertical form factor, board size 80mm x 35mm, 2-layer PCB, sized to mount inside a 3D-printed enclosure (mounting holes needed) RJ-45 jack with PoE (802.3af preferred) for network + power — note ESP32-S3 has no built-in Ethernet MAC, so needs an external PHY (e.g. LAN8720) via RMII Relay output for a 12V or 24V door lock, with proper fl...

I already have a fresh DigitalOcean droplet ready for you and will hand over the full SDK and documentation for the RFID readers we use for attendance. Your job is to stand up a WebSocket environment that accepts both plain WS and secure WSS connections, each on two custom ports (four ports total, none of them the usual 8080 or 443). One reader will connect over WS, the second over WSS, so both paths must be proved functional. What has to be in place: • A public IP and domain bound to the droplet, with a valid TLS certificate so the WSS path is trusted. • A running WebSocket service that listens concurrently on the four specified ports and reliably forwards traffic to the SDK libraries. • A lightweight PHP page that lets me see live device status, connecti...

...and balancing logic. A ten-inch touchscreen should present real-time status for every bay—docked state, mode, pack voltage, current, temperature, SoC, health flags, and any alerts. Each battery or airframe will carry an RFID tag so the system can log cycles, date-stamped charge events, health trends, and end-of-life warnings. I’m supplying the mechanical envelopes; you deliver everything electronic and digital: • Complete schematics and PCB layouts ready for manufacture • Embedded firmware for the STM or similar controller, including charge algorithms, safety interlocks, RFID handling, and data logging • HMI software for the touchscreen with an intuitive multi-bay dashboard • Test reports that prove charging accuracy, independent-bay...

...Management processes through an intuitive mobile application. Warehouse users can perform key operations such as Goods Receipt, Gate Entry, GRN Label Generation, Goods Issue, Stock Transfer, Bin-to-Bin Movement, Physical Inventory, Picking, Packing, Shipping, QR Code Scanning, RFID Scanning, Smart Printing, and Real-Time Stock Visibility directly from handheld devices. The product is designed to reduce manual effort, improve accuracy, and speed up warehouse execution. With features like instant item identification through QR/RFID scanning, real-time SAP updates, mobile notifications, batch-wise stock visibility, low stock alerts, and intelligent replenishment suggestions, AIWM enables warehouse teams to work with higher productivity and confidence. AIWM also carries a st...

...Support complete asset lifecycle operations including: - Asset registration - Asset categorization - Asset hierarchy - Parent-child relationships - Asset genealogy - Asset retirement - Asset disposal - Asset transfer - Asset replacement - Asset depreciation tracking - Warranty management - Vendor association - Purchase information - Financial records - Serial numbers - QR codes - NFC identifiers - RFID support - GPS-enabled assets - Barcode generation Each asset should maintain a permanent audit trail capturing every modification throughout its lifecycle. --- Preventive Maintenance Implement intelligent preventive maintenance capabilities: - Calendar scheduling - Meter-based scheduling - Runtime scheduling - Usage scheduling - Multi-trigger maintenance rules - Auto-generate...

...habits, grounded in current animal-science literature. • Recommend the most suitable species or strain, sample size, and housing requirements to achieve statistical power without compromising welfare. • Map out the full protocol—timing, environmental controls, feeding regimes, observation schedules, and measurable endpoints. • Detail the data-collection tools (e.g., ethograms, video tracking, RFID feeders) and suggest practical ways to minimize observer bias. • Provide a concise plan for statistical analysis so that, once the data are collected, I can move straight into interpretation. • Flag any ethical or regulatory considerations that must be addressed before the study begins. I will supply any background papers I have gathered; you ca...

Universal EVSE Controller PCB – Freelancer Requirement Design a universal ESP32-based EVSE controller PCB for AC EV chargers. Same PCB must support 3.3 kW, 7.4 kW, 11 kW, and 22 kW chargers. Use ESP32-WROOM-32E as the main controller. Include Ethernet (LAN8720), RS485 Modbus, RFID (RC522), and optional 4G module header. Implement IEC 61851 Control Pilot (CP) and Proximity Pilot (PP) circuitry. Provide contactor control output, emergency stop input, and temperature sensing. Support OCPP 1.6J firmware integration. PCB size approximately 120 mm × 90 mm, 4-layer industrial design. Separate low-voltage control section from high-voltage interface section. Follow proper EMI/EMC, creepage, and clearance requirements for EV charger applications. Deliver KiCad source files, schema...

I need an experienced .NET Core developer to plug full FASTag capability into my existing parking management platform. The RFID readers are already in place and streaming tag IDs; what’s missing is the software layer that talks to the FASTag service provider and folds those events into our business logic. Here is what the work entails: • Entry and exit processing – build secure REST endpoints that receive the tag read, validate it against the provider’s API, open the barrier, and persist the transaction with status codes for later audit. • Reconciliation and reporting – create automated, scheduler-driven jobs that pull settlement files, match them to our local ledger, flag discrepancies, and generate daily CSV-based reports. Beyond those core it...

RFID Hardware Product Development (NDA Required) We are looking for an experienced Hardware Engineer / RFID Specialist to design and develop a custom RFID-based hardware product. The product involves tracking and measuring physical expansion, dimensional changes, or movement of a tagged object over time using RFID and related sensing technologies. At this stage, only high-level information is being disclosed. Detailed project specifications, use cases, technical requirements, and commercial applications will be shared only with shortlisted candidates after execution of a Non-Disclosure Agreement (NDA). Required Skills RFID Technology (HF, UHF, NFC, Active/Passive RFID) Embedded Systems Hardware Product Design PCB Design Sensor Integration IoT Hardw...

...Because supervisors, HR officers, and floor managers move between offices and the shop floor, the same feature-set must be accessible on desktop, mobile, and any modern browser without compromises. Key deliverables • Employee database with role-based permissions and audit trail • Time & attendance engine that handles multiple shift patterns, overtime rules, and device integrations (biometric or RFID) • Payroll processor tied directly to attendance data, producing compliant payslips, tax filings, and custom allowances • Dashboards and reports that highlight productivity, absenteeism, and recruitment KPIs • Clean, responsive interfaces for Windows, iOS/Android, and web Acceptance criteria 1. All three modules work from a single sign-on a...

We are seeking a Texas-based freelancer to conduct an independent audit of an existing RFID inventory management project. The objective is to review all project assets, code, configurations, integrations, documentation, credentials, and system access to determine what has been fully transferred to the client and what may still be retained by previous freelancers. The audit should identify any security risks, ownership concerns, missing deliverables, or access dependencies related to the RFID readers, Google Sheets integrations, reporting systems, website components, databases, hosting environments, and user accounts. A detailed report outlining findings, recommendations, and any required remediation steps is expected.

I need college management system below are the details Essential Modules 1. Admission Management · Online applications · Document uploads · Merit list generation · Seat allocation · Adm...Timetables · Subject allocation · Faculty scheduling · Assignment tracking 5. Examination Management · Internal assessments · Practical exams · Result processing · Marksheet generation 7. Fee Management · Online payments · Installment tracking · Automatic reminders · Receipt generation 8. Library Automation · Barcode/RFID books · Online catalog &mi...

...have a cloud-hosted, multi-tenant SaaS platform built that combines warehouse management intelligence with a radio-frequency–based fraud-detection engine. The environment you’ll be serving is a busy distribution center where every misplaced pallet or spoofed tag has a real financial impact, so speed and accuracy are critical. Core capability requirements • Inventory tracking that ingests live RF/RFID reads to keep stock positions up to the second. • Real-time alerts that fire whenever the data stream shows anomalies—unauthorized tag movement, duplicate IDs, signal loss, or any pattern we jointly define. Workers should receive push, SMS, or email notifications instantly. • Data analytics and reporting dashboards that help managers drill down...

I need a single RFID tag that I can sew into my dog’s harness. The chip must arrive pre-encoded with one specific numeric ID that I will provide after the contract starts. No other data is required. I haven’t locked myself into a frequency yet—LF (134.2 kHz), HF/NFC or even UHF could all work—so feel free to recommend the best option for short-range, reliable reads in outdoor conditions. The finished tag has to be thin, flexible and safe to launder, because it will live inside fabric. Durability against mud, rain and the occasional swim is essential. Deliverables • One fully programmed RFID inlay or fabric-ready tag carrying only the supplied ID number • A brief spec sheet listing chip model, protocol (e.g., ISO 11784/11785, ISO 15693, EP...

* ESPNOW SendRadioPacket *ESPNOW ReceiveRadioPacket *PowerOn return true if power button held down for 5+ seconds *Power Down Sequence * SetPowerLEDColour function *PlaySound and StopSound functions *RFID FIFO queue of read tags *RFID write functions (SetName and SetTeamCode) *Addressable LED handling

I'm organizing a marathon and need an RFID timing solution. The system should provide real-time participant tracking. Key Requirements: - Real-time tracking of marathon participants - Accurate and reliable RFID technology - User-friendly interface for monitoring Ideal Skills and Experience: - Experience with RFID technology and event timing - Background in managing timing for sporting events, especially marathons - Strong technical skills to ensure system reliability

...sockets so the following modules can plug straight into the board: ESP32 DevKit Socket: Dual rows of female headers matching the exact pin footprint of a standard 30-pin ESP32 DevKit V1. Display Interface: A 1 times 9 female pin header breaking out the required GPIO/SPI pins from the ESP32 socket to control a 9-pin display. RFID Reader Interface: A 1 times 8 female pin header breaking out the hardware SPI lines from the ESP32 socket to connect an external 8-pin RFID module. Block B: Smart Charge-Control Switch Place a solid-state high-side switch (like a simple load switch IC or a P-Channel MOSFET) inline with the main power rail feeding the mobile device. Connect the control/enable pin of this switch directly to a designated digital GPIO pin header on the ESP32 socket. ...

I have a custom PCB for a UHF RFID reader (Theia RFID UX10 Reader) that integrates the M7e-Mega RFID module with a CP2102N-A02-GQFN20R USB-to-UART bridge. The board is not enumerating on Windows/Linux — it shows the classic error: “A request for the USB device descriptor failed” (Code 43 in Device Manager) Possible root cause in the schematic: R2 (22.6 kΩ) is incorrectly placed in series between VBUS (+5V) and the VREGIN pin (pin 5) of the CP2102N. According to the Silicon Labs datasheet, VREGIN must be connected directly to VBUS in bus-powered mode. I am looking for an experienced hardware/PCB engineer to: Review and correct the full schematic (Altium format preferred) — specifically the CP2102N power section. Provide a clean, production...

1. ABSTRACT This project presents an RFID-based door locking system using Arduino Uno to provide secure and contactless access control. The system uses RFID tags/cards to authenticate users and controls a servo motor to lock or unlock the door. An LCD display provides real-time status updates, and a buzzer gives audio feedback for access granted or denied. This system demonstrates the integration of embedded systems, IoT concepts, and automation for security applications. 2. OBJECTIVE To design a secure, keyless door locking system using RFID technology To integrate multiple electronic components such as RFID reader, servo motor, LCD, and buzzer with Arduino To validate authorized users using stored RFID UID data To provide real-time feedback using LCD...

I'm seeking an experienced poker livestream technician based in Los Angeles. Key Requirements: - Proficiency in OBS and vMix - Expertise with PokerGFX RFID system - Skills in creating live overlays: - Player statistics - Hand rankings - Live chat feed - Experience in audio optimization - Multi-camera production workflows Ideal candidates will have a background in poker livestreams.

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...like a complete standalone website. Example: Each category page should have: * Dedicated hero banner * Promotional banners * Featured products * Subcategories * SEO content * Custom category design * Filters * Brand/category identity Some categories/products will be added later manually such as: * Smart Locks * Security Products * Networking * Antivirus Software * RFID Products ⸻ 3. PRODUCT IMPORT & INVENTORY MANAGEMENT ⸻ Need: * Import 6000+ products * Import Amazon store products * Bulk product handling * Category mapping * Product SEO setup * CSV inventory update system * Shopify-style CSV support * Product variants * Duplicate handling * Bulk image setup * Future import support * need management, 1 sku has many sub-sku , it also has code, sub-code, cat

I need a complete design with test prototype units for an economical, antenna-integrated UHF RFID module that can reliably read any kind of UHF tag at 6–10 m, indoors or outdoors, while handling dense tag populations through anti-collision. Scope of work • Select a low-cost yet robust UHF chipset and design the matching network, power regulation and control interface around it. • Integrate a compact broadband antenna directly on the same board and tune the whole RF path so that the target read range is met without external tuning components. • Optimise firmware or register settings for fast anti-collision, EPC Gen2 compliance and low power consumption. • Provide a full package: schematic, PCB and antenna layout (Gerber/ODB++), BOM with sourcing n...

...developing a wall/desk-mounted NFC clock in / out system. I already have a working prototype and firmware completed using Arduino IDE on ESP32. I now want a professionally designed integrated PCB and simple 3D printable enclosure suitable for low-cost manufacturing through JLCPCB PCBA. Main requirements: Integrated ESP32 module (ESP32-WROOM preferred) USB-C for power + programming WiFi required MFRC522 RFID/NFC support over SPI 16x2 I2C LCD support 4 navigation buttons 2 status LEDs Active buzzer Fully integrated PCB (no ESP32 dev board or jumper wires) JLCPCB/JLCPCB PCBA compatible Reliable design suitable for production Important: I already have working firmware completed GPIO compatibility with existing firmware is preferred Cost optimisation is very important Open to prof...

...stop-point handling so future tweaks are easy. Serial-print debug messages are welcome but keep them toggle-able with a macro or flag. Acceptance criteria • Upload sketch, I flash it once, car continuously follows a 2 cm-wide black tape loop without drifting. • When an object is placed 15 cm ahead, vehicle brakes, turns, and rejoins the line smoothly. • It halts for exactly 2 seconds at each RFID-tagged or IR-marked stop (you can choose which of the existing sensors to use; just document it). Hand over the .ino file plus any calibration values or library references you use (e.g., Keyestudio_LineTracker, NewPing, IRremote). A quick note on wiring assumptions and a short read-me are appreciated. Speed is critical, so if you’re confident you can meet t...

...adding the SR04 driver (timer-based pulse width measurement, timeout handling, and simple moving-average smoothing is fine), the only logic change I am after is the distance-based threshold test—no machine learning or pattern recognition. For any hardware interface part new circuit you can give me schematic and i can do same on general PCB for testing. Beside this i want to allow support of RFID reader on Serial port or on TCP-IP as current flow only support wigand interface. Deliverables • Updated, well-commented source files • Compiled HEX ready to flash • Brief report outlining the new functions, registers or timers you touched, and where the 1.4 m threshold is defined so I can tweak it later I will flash and bench-test the code on my hardwar...

I already run a small VB-based program that works with an RFID reader to capture Time-In, Time-Out, and calculate total working hours. That module is doing its job, so I want to leave it untouched and develop the rest of the Employee Management System around it. Here’s what I need next: • A clean CRUD application for employee records (add, edit, deactivate, search). • Automatic payroll calculation that picks up the daily hours stored by my existing VB module and applies our pay rules (regular, overtime, deductions, allowances). • Flexible report generation—daily, weekly, and monthly attendance summaries plus payslips and payroll ledger, all exportable to PDF and Excel. The RFID reader itself stays separate; just let me import or read the d...

I'm looking for a skilled designer to create a slim wallet with RFID protection. Requirements: - Design a slim, functional, and stylish wallet - Incorporate RFID protection for security - Experience in wallet design is preferred - Knowledge of materials, especially leather, fabric, and synthetic Please include samples of previous work.

PROJECT DESCRIPTION: I need a KiCad PCB designer to create three RFID antenna boards from scratch and deliver verified, JLCPCB-ready Gerber files. No existing files will be provided. The designer must create everything in KiCad based on the specifications below. These are rectangular spiral RFID reader antennas operating at 13.56 MHz (ISO 15693 protocol), used in a poker chip tracking system. Each board has a copper spiral on the front layer (), a single return trace on the back layer (), one SMA edge-launch connector, and one SMD tuning capacitor. BOARD 1 — SEAT ANTENNA ParameterValueBoard size210 × 210 mmLayers2 ( + )PCB thickness1.6mm FR4Spiral turns5Track width2.5mmGap between tracks0.5mmOutermost turn200 × 200mm center to centerTuning capacitor14pF, SM...

PROJECT DESCRIPTION: I need a KiCad PCB designer to create three RFID antenna boards from scratch and deliver verified, JLCPCB-ready Gerber files. No existing files will be provided. The designer must create everything in KiCad based on the specifications below. These are rectangular spiral RFID reader antennas operating at 13.56 MHz (ISO 15693 protocol), used in a poker chip tracking system. Each board has a copper spiral on the front layer (), a single return trace on the back layer (), one SMA edge-launch connector, and one SMD tuning capacitor. BOARD 1 — SEAT ANTENNA ParameterValueBoard size210 × 210 mmLayers2 ( + )PCB thickness1.6mm FR4Spiral turns5Track width2.5mmGap between tracks0.5mmOutermost turn200 × 200mm center to centerTuning capacitor14pF, SM...

...both: * Mobile (Android) * Web version Testing must be performed on real devices (not just emulators) to capture device-specific issues. Tools: You may use Flutter DevTools, Android Studio/Xcode profilers, Firebase Performance Monitoring, Chrome DevTools, or your preferred tools—as long as reports are clear and reproducible. Key Modules: * Role-based login (Admin, Staff) * Attendance system (RFID-based) * Leave & permission workflows * Fee management * Notifications & real-time updates Deliverables: * Test plan covering functional and performance scenarios * Executed test cases with pass/fail results and evidence (screenshots/videos) * Prioritized bug/defect report with: * Steps to reproduce * Expected vs actual result * Device/environment details * Pe...

PROJECT DESCRIPTION: I need a KiCad PCB designer to create three RFID antenna boards from scratch and deliver verified, JLCPCB-ready Gerber files. No existing files will be provided. The designer must create everything in KiCad based on the specifications below. These are rectangular spiral RFID reader antennas operating at 13.56 MHz (ISO 15693 protocol), used in a poker chip tracking system. Each board has a copper spiral on the front layer (), a single return trace on the back layer (), one SMA edge-launch connector, and one SMD tuning capacitor. BOARD 1 — SEAT ANTENNA ParameterValueBoard size210 × 210 mmLayers2 ( + )PCB thickness1.6mm FR4Spiral turns5Track width2.5mmGap between tracks0.5mmOutermost turn200 × 200mm center to centerTuning capacitor14pF, SM...

I’ve built an early-stage food cart concept and now need the automatic dustbin I’m using as a mock dispenser to respond to an RFID wristband instead of its factory IR sensor. Your main focus will be integrating the RC522 RFID reader so a simple tap from a pre-tagged wristband opens the lid, deducts one credit, shows status with an LED, and closes the lid again after three seconds. Scope of work • Remove the stock IR proximity module from the dustbin’s control board and neatly position the RC522 reader in its place. • Wire the reader to an Arduino Nano, plus a dual-colour LED (green when at least one credit remains, red once all six credits are consumed). • Write clean, well-commented Arduino code that: – recognises authorised ...

I'm looking for a skilled C# .NET Azure developer to enhance my cloud-based software. The project involves: Adding QR Code Functionality: - Generate QR codes - Scan and read QR codes - Store QR code data in the database Integrating RFID Technology: - Read RFID tags - Write RFID tags - Manage RFID data Implementing patches and updates Ideal Skills and Experience: - Proficiency in C# and .NET - Experience with Azure cloud services - Familiarity with QR code and RFID technologies - Strong database management skills - Ability to implement patches and updates Please provide relevant experience in your bids.

I’m rolling out a tracking-and-monitoring solution that will operate entirely in harsh, outdoor conditions, and I need expert, brand-agnostic guidance on choosing the right RFID reader hardware. My priority is reliability in rain, dust, and fluctuating temperatures, as well as consistent tag reads over moderate distances. Here’s what I expect: • A short call (or concise written brief) to clarify the environmental constraints, read-range targets, tag volumes, and power/network options I have available. • A ranked list of commercially available readers—UHF/HF as appropriate—with key specs (IP rating, antenna options, supported protocols, connectivity, power requirements, and indicative pricing). • Rationale for each recommendation, highligh...

I’ve put together a prototype smart vending machine around an Arduino UNO that authenticates users with an RC522 RFID reader, lets them pick Snickers or Skittles on a 4 × 4 keypad, and drives stepper motors to release the selected treat. Each part works on its own, yet when I run the full sketch the system freezes, tags go unread, or the wrong motor spins. I don’t have a complete wiring diagram yet, so one of the first tasks will be helping me draft a clear schematic before we dive into the code. From there, I need comprehensive guidance: • Debugging the existing sketch so RFID login, keypad input, and AccelStepper control cooperate without blocking the loop • Advising on clean wiring, power distribution, and noise suppression to keep the motor...

P...entry fee collection, member-linked approvals, and rule-based access per event. Optional QR-based guest passes. 6. Finance & Vendor Management Track revenue and expenditure, event-level budgeting, vendor onboarding, and payment tracking. Integrated with POS and events. 7. Access Control & FRS Integrated system using Facial Recognition (FRS), RFID cards, and virtual ID cards. Sync member data/photos to devices, enable real-time access validation, and print RFID cards. Track all member/guest entry-exit with timestamps, member-guest linkage, and full audit logs. Support multiple entry points. 8. Admin & Reporting Central dashboard with insights on membership, revenue, events, and access logs. Exportable reports. 9. Security Role-based access, secure data/biometri...

The task is to turn my concept for an Elevating Work Platform safety module into a working prototype. The unit must confirm that an operator’s harness—fitted with an RFID tag—is positively engaged with the platform’s designated anchor point before power-up and continuously while the boom is in motion. If the reader ever loses that tag signal, the system must raise an immediate audible and visual alert; real-time notification is the single most critical feature for me. Core approach • Detection method: RFID tags embedded in each harness, with a rugged reader/antenna built into or beside the anchor point. • Users and environment: construction workers on dusty, vibration-heavy sites, so the enclosure, connectors, and firmware watchdogs ha...

... Additional Technical Requirements React: Modern component architecture, hooks, state management Node.js: Backend development, API design, server-side logic Python: Scrip ng, automation, data processing, AI integrations Database Systems: PostgreSQL, MongoDB, or similar (SQL and/or NoSQL proficiency) Version Control: Git/GitHub workflows, branching strategies, code reviews Nice to have: RFID/wearable technology integration experience Experience working with government/military sector clients UI/UX design sensibility CI/CD pipeline setup (GitHub Ac ons, Jenkins, etc.) Side Note This is a permanent work-from-home role under an Independent Contractor arrangement. Candidates must have their own computer and reliable internet connection, and are responsible for their own t...

...needs three core modules: 1) Employee check-in / check-out A single, easy form for manual entry that time-stamps arrivals and departures. Employees will be selected from a dropdown fed by a master staff table; the form should automatically calculate total hours and flag missing punches. While our current workflow is manual, I would like the table design to be flexible enough so we could later add RFID or biometric fields without rebuilding the whole structure. 2) Leave management Vacation, sick days and other absences must be logged against each employee and deducted from their entitlement balance. Accrual rules are straightforward—one line per leave type with start-date, end-date and reason—but the logic that keeps the balances accurate is essential, so VBA or ...