Sensor intergration jobs

... Zigbee/Z-Wave, or a mixed approach—so long as everything talks to each other reliably and can be managed from a single dashboard. Deliverables 1. Wiring and device layout diagram 2. Bill of materials with part numbers 3. On-site installation and configuration 4. Walk-through and hand-over documentation, including backup of all controller settings Acceptance criteria • Every light, sensor, and thermostat controllable through the agreed app and via voice (Alexa or Google Home) • No exposed or unlabelled wiring inside panels or junction boxes • Final system passes safety inspection and functions without errors for 48 hours after commissioning Let me know your preferred brands, any licensing or certification you hold, and an estimated timeline f...

...this is the exception, not the norm, for the ongoing relationship We're flagging this structure upfront because it affects staffing and process, not because we expect friction over it. Technical Environment For context when scoping — happy to go deeper on any of this in a follow-up call: • Frontend: React • Backend: Go • Data storage: SQL database (storing of raw sensor data) and DynamoDB (processed raw data: home/account/sensor objects) • Infrastructure: AWS — Lambda, SQS/EventBridge, S3, plus standard IAM/networking • Analysis pipeline: Python (pandas-based), currently ~20 sequential processing stages, historically run as a script and now being migrated to run as a Lambda function • Source control: GitHub — some re...

...8V-only I/O domain). Includes a MIPI-DSI display interface with capacitive touch, switched peripheral rails, Ethernet, USB, RS-485, I2C peripherals, PWM/tach fan control, and a JTAG/UART debug header. 24V input. - Power board — system power input and distribution. - Sub control board — a control board driving inductive and high-voltage loads from multiple switching regulators, plus its companion sensor board. - Light board — two independent control circuits: a relay stage switching a 110–240 VAC ballast that drives four UV bulbs, and a constant-current driver for a single full-spectrum LED strip. What we want from the review: - Power tree verification: rail sequencing, current budgets, feedback dividers, UVLO/EN thresholds, component derating and thermals...

i am building an *end-to-end iot prototype using esp32* and need help from start to finish. FOR THE ATTACHED THING using esp32, sensors can be temp, motion, light, etc — whatever gives stable readings idk wtv *deliverables:* working code,(can be) accurate sensor data, clear docs a classmate can replicate if you can help, *contact me on whatsapp: +91 9623838316* i’ll send a pic of my project. please also send a short video on how to build it + the parts required

I need a skilled PLC programmer to develop a control system for an oil project. The PLC will be a Siemens model and will handle flow control and low-level sensing. Key Requirements: - Flow control management - Low-level sensor integration - Interface with sensors, actuators, and HMI Ideal Skills and Experience: - Proficiency in Siemens PLC programming - Experience with flow control and sensor integration - Familiarity with HMI and actuator interfacing Please provide relevant experience in your bids.

I’m bringing an MLX90614 infrared temperature sensor into an ESP32-based design and need a clean, ready-to-flash solution that covers three essentials: accurate temperature readings, an immediate on-screen display, and reliable data logging. The job breaks down into two parts. First, document the wiring so I can reproduce it quickly—pin map, I²C pull-ups, and power considerations for the 3 V rail. Second, supply well-commented Arduino-compatible code (ESP-IDF is fine if you prefer) that: • polls the MLX90614 at a reasonable interval • streams both object and ambient temperatures to the Serial Monitor (or an OLED/Nextion screen if you think that’s cleaner) • stores each reading with a time stamp to SPIFFS or a micro-SD card—your cal...

I'm looking for a skilled 3D CAD designer to create a custom lid for a 16L smart trash can. The lid will house an ESP32 display board, an ultrasonic sensor, and a servo motor. Requirements: - The ESP32 display board will be used to display status messages. - The ultrasonic sensor should be positioned at the front center of the lid. - The lid should allow for partial opening to access the servo motor. Ideal skills and experience: - Proficiency in 3D CAD software Please include an internal compartment or slot under the lid to securely hold a small portable power bank or battery pack. - Experience with designing components for electronics integration - Understanding of mechanical design and function - Attention to detail and ability to meet specific design requ...

...organizing relays, terminal blocks, circuit breakers, PLCs, and 24V power supplies. • Electronic Circuit Boards (PCBs): Dedicated mounting hole patterns and threaded standoffs (M3/M4 Brass Standoffs) for custom control/communication boards. • Cable Routing & Cable Glands: Pre-cut holes/knockouts with rubber grommets or cable glands (PG/M threads) on rear and internal dividing panels for passing power, sensor, and CAN/USB data cables without wire pinch risks. • Heat Dissipation & Airflow: Mounting cutouts for 120 mm cabinet cooling fans and filter louvers positioned according to the thermal load of the electrical components. 5. Required Deliverables The freelancer shall deliver the following files upon project completion: Deliverable Format Technical Require...

...MCU / wireless stack and finalising the schematic • Integrating the three sensor types and validating their accuracy in lab tests • Coding the firmware (C/C++ or Rust preferred, but I am open) that handles the full local-processing pipeline described above • Setting up secure OTA update hooks so we can iterate quickly • Delivering a clean, well-documented API that hands structured JSON (or a similarly lightweight format) to our cloud ingress endpoint • Producing brief build notes and a bill of materials so we can send the design for a small production run Acceptance criteria: 1. A hand-solderable prototype or assembled dev-kit that boots reliably and logs its start-up sequence over serial. 2. Live sensor data visible in a test dashboar...

...com/topics/digital-twin Here’s what I expect to receive: • 3D mechanical design files (SolidWorks or comparable free 3D designer. Please identify) covering robots, arm, base, gripper, and guarding • Motion, timing and load calculations showing the system meets the ≥30kg payload across the required reach • Control-system layout (Robots, end effectors, servo selection, PLC/ROS integration, sensor list) with I/O mapping • A fully itemized BOM with manufacturer part numbers, lead times, and indicative costs • Assembly drawings and exploded views ready for fabrication. Prefer to use pre-fab products that can be fused together quickly • Basic operating cycle 3D simulation & digital twin (some examples given in link) to prove concep...

...circular banana leaves for each plate. We are printing a **continuous web/roll** and cutting/forming plates later. Therefore the print must remain attractive regardless of where a plate is cut from the printed roll. The artwork should be a **continuous infinite banana-leaf texture**, not registered plate artwork. --- # No Registration Dependency The design must not require: * photoelectric sensor * eye mark * registration mark for each plate * exact print-to-die alignment * exact centre positioning of each leaf A plate cut from slightly different positions of the web should still look acceptable. This is one of the most important objectives of the project. --- # Vector File Requirements The artwork must be **100% vector**. Preferred working/final formats: * Adobe Il...

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...task is to build the 3-D model in SolidWorks from those numbers, filling in any missing inlet or outlet detail after we agree on reasonable assumptions. Once the geometry is ready we move straight into Flow Simulation: • Case 1 – baseline airflow through the empty chamber • Case 2 – same model with the gas-sensor array added • Case 3 – sensors plus guiding walls on both sides • Honeycomb comparison – overlay 1.5 mm vs 2 mm perforated inserts and report the effect on flow and sensor exposure For every run I expect the native *.FlowSimulation project, pressure/velocity plots, streamlines, and a short written comparison that highlights key differences between cases. High-resolution screenshots are fine; a single PDF summary...

...of an AI-enabled collar that keeps real-time watch over a cow’s well-being and daily habits. The collar has to: • Track health by continuously capturing heart rate, temperature and respiration, flagging anomalies for early intervention. • Record activity patterns—grazing time, walking distance and rest periods—so I can optimise feed plans and pasture rotation. I am open to your recommended sensor suite, low-power electronics, edge AI models and a simple companion app or dashboard that turns raw readings into clear, actionable insights. Deliver a fully assembled collar with firmware, data pipeline and a short demo showing the metrics streaming accurately from a live test or simulator. If you have previous experience in livestock wearables, embedd...

...high-precision cleaning on mixed surfaces, and I need an expert to specify every hardware component that makes this possible. I have already decided on a sensor-based navigation approach along with LiDAR and camera mapping, so the component set you propose needs to maximise accuracy through well-chosen proximity, cliff- and dust-sensing technologies. Here is what I expect from you: • A complete bill of materials covering drive motors, suction module, filtration, battery pack, sensor suite, control board, wheels, brushes and any required gear reductions or mounts. • Key specs for each part (dimensions, voltage/current, torque, airflow, sensor resolution, etc.) alongside brief justifications that show how each item supports both high-precision cleaning ...

...use of Altium (or KiCad), STM32/ESP32 class MCUs, precise timing control in C/C++, and low-level debugging with J-Link or OpenOCD. I will handle mechanical housing once you define envelope and mounting points. Key expectations • Accuracy and repeatability must match typical 0.1° angular resolution and ≤3 cm range error across a 6 m indoor span. • Mapping frame rate: ≥10 Hz full sweep. • Sensor should self-calibrate on power-up and deliver clean packets over UART. • All design files remain editable; no locked libraries or black-box binaries. Deliverables 1. Complete schematic, PCB layout, and fabrication files. 2. Bill of materials with China-sourced components in mind. 3. Compiled and source firmware, plus flashing instructions. 4. ...

...the AR0234 module drawing and predefined 23-pin pinout. The local camera interface includes: One-lane MIPI CSI-2 clock and data I²C SCL/SDA RESET External sensor clock External trigger Shutter and flash signals AVDD 2.8 V DOVDD 1.8 V DVDD 1.2 V Multiple ground connections The designer must verify the FPC connector pitch, cable thickness, contact orientation and pin-1 direction before PCB layout. GMSL2 Requirements Two independent GMSL2 camera inputs Preferred deserializer: MAX96716A 3 Gbps/6 Gbps link support Both streams routed to one RV1126B CSI receiver Separate MIPI virtual channels for the two cameras I²C pass-through for remote sensor configuration Remote GPIO/trigger support Link-lock and error monitoring Optional PoC with independent current protection fo...

...online first, confirm it streams clean motion data, then replicate the solution for the other two. What I already have • A sketch that compiles but never sees the sensor • All parts on hand, breadboarded and powered • Standard Arduino IDE installed on my end for quick testing What I need from you within the next couple of hours 1. Corrected or freshly written code that initializes the PAA5100JE, verifies it over SPI, and outputs X/Y delta values on the serial monitor at 115 200 bps. 2. A clear wiring diagram (hand-drawn is fine if neat, Fritzing/KiCad even better) that shows every pin between the ESP32-D and the sensor, including power, ground, CS, MISO, MOSI, SCK and any required pull-ups or caps. 3. Short guidance notes so I can duplicate...

...connectivity, pull motion data from the PAA5100JE, and give me software control of several GPIOs so I can drive LEDs and switch power to an additional sensor on command. Here’s what I need from you: • An advised pin map and any level-shifting guidance for a clean, noise-free hardware hookup. • Well-structured firmware (PlatformIO or Arduino-IDE friendly) that: – Initializes the PAA5100JE and streams its measurements at a steady rate. – Publishes those readings over Wi-Fi—MQTT, HTTP, or WebSocket is fine, as long as it’s fast to implement and stable. – Exposes simple commands or a REST endpoint to toggle GPIOs for the LEDs and sensor power rail. • Clear documentation so I can reproduce the build, flash the ...

...gas burners so I can switch energy sources as required. From dough portioning and pressing to cooking, puffing, and neatly stacking, every step should run hands-free once ingredients are loaded. To keep the budget realistic, I’m open to clever use of off-the-shelf components, 3-D-printed parts, recycled food-grade stainless, or low-cost electronics such as Arduino or Raspberry Pi for control and sensor feedback. Just make sure anything in contact with the dough is food safe, easy to clean, and remains rigid over time. Deliverables I expect: • CAD drawings with assembly instructions • A complete bill of materials showing per-item cost and total staying below ₹10,000 • Control schematics and firmware source code • A short demonstration video of the...

...vs Expected Generation Energy Loss Inverter Efficiency Irradiance Active Alarm Count Plant Health Score Calculations should be available at relevant hierarchy levels: Enterprise → Portfolio → Plant → Block → Inverter Alarm Engine Develop configurable rules for situations including: Inverter offline Low generation Underperformance Communication failure High temperature Grid outage Irradiance sensor failure Meter mismatch Persistent alarm Missing telemetry Alarm records should support: Severity Asset Start time End time Status Acknowledgement Comments Assigned user Root-cause category Associated work order Scope Develop KPI calculation services. Develop configurable alarm rules. Implement hierarchy-level aggregation. Create APIs for frontend dashboards. D...

...Telemetry → Aggregation → TwinPro API Deliverables Milestone 1: Telemetry architecture + tag model Milestone 2: Data ingestion API/MQTT service Milestone 3: Time-series database implementation Milestone 4: Solar SCADA simulator Milestone 5: Aggregated/historical-data APIs + documentation Important Requirement The solution must be device-independent. We should be able to add new inverter or sensor manufacturers by configuration rather than rewriting the complete ingestion service. What to Include in Your Bid Please explain: Previous IoT/SCADA projects Experience with MQTT/Modbus Recommended time-series database How you would handle missing SCADA values Whether you have worked with renewable-energy data Start your bid with “TWINPRO SCADA”. Preferred S...

I need a lightweight Android app that can take data about an approaching chicken—distance, speed, or any other sensor input we decide on—and instantly predict the safest time for it to cross a road. The prediction should be shown on-screen in simple, clear language so a farmer or handler can act without hesitation. Core requirement • Predict road-crossing times in real time for a single or multiple chickens. I do not need location tracking or intersection alerts in this phase; the entire focus is on accurate, fast predictions and an intuitive user interface. Preferred approach You are free to work with native Android (Java or Kotlin) or a well-supported cross-platform stack such as Flutter or React Native as long as the final build runs smoothly on current An...

IoT Cloud Solution Requirement We have developed a custom PCB-based IoT device consisting of an ESP32 microcontroller, an EC200 GSM (4G) module, an SCD30 sensor for measuring CO₂, temperature, and humidity, and a 5-inch display that shows these sensor readings in real time. We require a complete cloud-based IoT solution for approximately 100 deployed devices. Each device should securely transmit its sensor data to the cloud over the GSM network. The cloud platform should store the data, provide APIs for a mobile application, and support a Grafana dashboard for real-time monitoring and historical analysis. The solution should include secure device communication (MQTT or HTTPS), cloud data storage, user authentication, device management, real-time dashboards, historic...

LOOP every ~2 seconds, for each burner sensor independently: 1. Read current temperature from sensor 2. Add reading to a rolling 15-20 second window of recent readings 3. Compute rate of change over that window 4. IF temperature has plateaued (stayed within ~±2°C band) AND plateau duration > 10-15 seconds AND temperature >= 90°C: -> Trigger "BOILING LIQUID" alert - Sound buzzer: 3 short beeps - Send Blynk push notification: "Burner X approaching boil" - Enter cooldown state for this burner (~2 min, suppress repeat alerts) 5. ELSE IF temperature keeps climbing past ~120°C without plateauing: -> Trigger "DRY PAN / FIRE RISK" alert - Sound buz...

...BLE) ●GSM + GNSS + sensor integration plan ●Final 4-layer PCB layout (controlled impedance) ●PCB stack-up definition ●BOM with alternates & footprint expectations ●Power IC replacement strategy document ●RF matching networks included ●3D PCB model 2.2 Manufacturing Files (Final) - COMPLETED ●Gerber files ●Drill files ●Pick & Place ●Assembly files PCB layout source files (Altium) 3. Scope of Work - Phase 2 — Firmware Development Tasks: ●Implement sensor drivers (IMU, PPG, Temperature, GNSS) ●BLE GATT services using JSON-based packets ●Battery monitoring and basic power management ●Sleep / wake-up logic ●SIM7000G LTE data transmission ●Sensor + GNSS scheduling and fusion logic Deliverables: ●Firmware source code (C/C++) ●BLE GATT / UART JSON protoc...

...a hands-on mentor for the hardware and coding side, not just a builder — someone who will walk us through each step and explain it, since we're complete beginners in this specific area. Phase 1 scope (this posting): Guide us through wiring a basic glove prototype: flex sensors + IMU connected to a microcontroller (Arduino/ESP32 or your recommendation) Get the hardware reading clean, reliable sensor data Basic coding to turn that raw data into recognised output for a small set of signs (a handful of Arabic Sign Language letters/words as a starting vocabulary) Teach us why each step works as we go What we're looking for: Electrical/embedded systems engineer experienced with wearable sensors and microcontrollers Comfortable with regular video calls (Zoom or your ...

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...workflow—from order acceptance through hand-off at the customer’s balcony or doorstep—needs to be automated, safe and fully traceable. Core functionality I need you to build, integrate and prove in a field test: • Real-time tracking visible on a web or mobile dashboard • Automated navigation that plans optimal routes while respecting geofencing rules • Accurate payload drop-off confirmation (photo, sensor log or both) • Reliable no-fly-zone detection with instant rerouting Please design the flight-control stack, ground control interface and user-side tracking module, then link everything with a secure API that can plug into a typical food-ordering app. End-to-end logs (flight path, battery status, payload status) should be exported i...

...matters most is that the entire path from sensor to cloud is proven and robust. You are free to suggest the specific humidity sensor, the firmware language (Arduino, MicroPython, C, etc.), and the best authentication method for GCP, as long as you keep power consumption modest and the solution easy to reproduce. Please highlight your relevant experience creating similar data-logging or IoT pipelines; that is the single factor I will weigh when selecting a freelancer. Deliverables • Bill of materials with part numbers and estimated cost • Fully commented source code / firmware ready to flash • Step-by-step instructions (or scripts) to provision the GCP resources and verify data arrival • Brief usage guide explaining how to calibrate the sens...

I need a working prototype that lets me monitor a single-car residential parking spot without running any wiring. The concept is simple: • Hardware: a custom ESP32 board that combines LoRa radio, BLE, and a low-power magnetic (Hall-effect) sensor. It will spend almost all of its life in deep-sleep on two AA batteries and wake only when a car enters, exits, or moves. On every wake-up it must stamp the event with time, append the car’s BLE ID, and shoot that packet over LoRa. • Gateway: a battery-operated LoRa gateway that forwards incoming packets to my home Wi-Fi and then to a mobile or web endpoint of my choice (MQTT, REST, or similar). The key technical goals are extreme power efficiency, reliable car-only detection, and end-to-end message delivery you can demon...

...sensors and automatically send an SMS notification to my phone whenever either reed switch changes state or the measured current exceeds or falls below configurable threshold values. The firmware should be developed for Particle Device OS and include cellular SMS functionality. Each alert message should report the current status of both reed switches, the real-time current measurement from the CT sensor, and the exact timestamp when the event occurred. I would also appreciate assistance in determining and configuring appropriate threshold values for both the reed switch logic and the current monitoring to ensure reliable operation. As part of the deliverables, I need a clear wiring diagram, well-commented source code ready for deployment, and a brief setup guide explaining wher...

...an experienced hardware/embedded engineer to build a first working prototype of a wearable sensor vest for athlete movement and heart rate monitoring. Scope: Sensor 1: GPS + 9-axis IMU (accelerometer, gyroscope, magnetometer) — for speed, distance, direction, and position tracking Sensor 2: Heart rate sensing — open to your recommendation on approach (optical/PPG vs. ECG) for a first prototype, given the vest will be used during physical activity/sport Data transmission: BLE to a nearby tablet/laptop Physical form: lightweight vest/garment insert, worn on the back, under 150g target, minimum 3-4 hour battery life, sweat-resistant What I need from you: Schematic + PCB design Firmware for both sensor sets A basic enclosure (3D printed is fine for...

Developer to help us build a Visual Positioning System (VPS) for UAVs and drones. The initial prototype will be developed using NVIDIA Jetson Nano + Camera, with the goal of creating a robust visual navigation system for challenging GPS/GNSS environments. Required Skills * Python / C++ * OpenCV * Computer Vision * NVIDIA Jetson Nano * Optical Flow * Visual-Inertial Odometry (VIO) * SLAM * IMU / Sensor Fusion * ArduPilot / PX4 * MAVLink * UAV / Drone Systems * Linux / Embedded Systems Project Scope * Camera-based visual positioning * Optical Flow implementation * Camera + IMU fusion * VIO development * Real-time position and velocity estimation * ArduPilot / PX4 integration * MAVLink communication * GPS-denied navigation * Performance optimization on Jetson Nano * Testing an...

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...visualization, so deep experience with Esri ArcGIS — and an up-to-date ArcGIS certification to prove it — is essential. Scope of work The project starts with cleaning and organising sensor-derived geospatial data, building a solid geodatabase where needed, and then designing map products that communicate patterns at a glance. Think thematic maps, interactive web layers and printable layouts that decision-makers can digest quickly. Because most of the insight must be drawn visually, cartographic finesse and a good handle on symbology, annotation and scale-dependent rendering are all important. I will supply: • the raw sensor files (shapefiles, CSVs with coordinates, and a small GeoTIFF set) • an outline of the key questions we’re trying t...

...layer before transmission. Ensure end-to-end data integrity from hardware sensor acquisition to cloud ingest, protecting against spoofing, replay attacks, and man-in-the-middle (MitM) tampering. 2. Ingestion & Immutable Ledger Pipeline Architect and deploy low-latency, scalable ingestion pipelines capable of receiving streaming time-series data, event triggers, and sensor metrics from field devices. Design and implement a tamper-proof, immutable ledger (utilizing cryptographic Merkle trees, append-only distributed databases, or lightweight ledger/blockchain protocols) to guarantee data auditability and permanence. Establish secure tokenization/credit generation logic or verifiable proof mechanisms driven by sensor events and threshold compliance. 3. Systems...

...embedded system that will sit inside a vehicle (horn-relay) and act as the central hub for sensor integration and data acquisition. The core of the job is full-cycle design and development: selecting the right MCU family, creating the schematic and PCB layout, writing the firmware, and validating that the board reliably collects, timestamps, and streams data from the relay connectivity Hands-on experience in both embedded C/C++ and practical electrical or automotive environments is essential because the design must stand up to temperature, vibration, and EMI constraints found in vehicles. Familiarity with CAN, LIN, or similar in-vehicle networks is a plus; the final board will need to forward selected sensor packets to the main ECU. Deliverables • Complete hardware ...

...exposes measurements via UART or SPI (existing MCU is ARM-based C/C++) • Clear calibration and verification procedure that site managers can execute without lab equipment Deliverables 1. Sensor selection report or custom schematic with BOM 2. Firmware stack with commented source and build instructions 3. Mechanical mounting guide tailored to steel studs, concrete formwork and tripod setups 4. Test results proving millimeter accuracy indoors and outdoors (raw data + analysis notebook) 5. Final integration manual and on-site commissioning checklist Acceptance criteria The integrated sensor must repeatedly measure known targets from 0.5 m to 30 m with ≤ ±2 mm error in daylight and warehouse lighting, and must boot, read and report within 250 ms ...

...• Launch, config, and calibration files specific to this sensor pair • Clean MAVROS topic bridge so the flight controller receives continuous, filtered pose updates • Step-by-step documentation plus a repeatable test procedure; include a sample rosbag proving the accuracy target inside a mock boiler environment Acceptance criteria • ≤ 5 cm cumulative drift over 10 minutes of continuous movement inside a boiler • CPU load below 70 % on the Xavier NX during operation • Code builds with colcon, uses only standard ROS 2 dependencies, and runs headless You are free to base the solution on FAST-LIO2, LOAM, RTAB-Map, or a custom EKF/UKF—just explain your choice and show how it meets the accuracy requirement. Share any sensor s...

...stores the current lap, previous lap, and best lap in memory • Real-time display of those three values on a 16×2 (or comparable) LCD; the screen should auto-update as each new lap registers • Simple push-button reset to clear the session without rebooting the board Deliverables: 1. Clean, well-commented Arduino sketch (.ino) ready to upload 2. Minimal wiring diagram showing the Arduino, chosen sensor, LCD, and reset button 3. Short parts list so I can source identical components locally 4. Quick-start guide that walks me through calibration and testing at the track I will test the build by running ten consecutive laps; the system must not miss or double-count any trigger and must display each time within one second of passing the line to be accepted....

...the current lap, previous lap, and best lap in memory • Real-time display of those three values on a 16×2 (or comparable) LCD; the screen should auto-update as each new lap registers • Simple push-button reset to clear the session without rebooting the board Deliverables: 1. Clean, well-commented Arduino sketch (.ino) ready to upload 2. Minimal wiring diagram showing the Arduino, chosen sensor, LCD, and reset button 3. Short parts list so I can source identical components locally 4. Quick-start guide that walks me through calibration and testing at the track I will test the build by running ten consecutive laps; the system must not miss or double-count any trigger and must display each time within one second of passing the line to be accepted....

...fabricate, and bring-up custom PCBAs that drive a control system while cleanly interfacing with three sensor classes—temperature sensors, motion detectors, and cameras. Form factor, power budget, and component selection all matter in this build; I already have target size dimensions, allowable power envelope, and a shortlist of preferred parts that we will refine together. Once we lock the architecture you will prepare the complete design package, handle a short prototype run, and validate the hardware with the sensors hooked up. Deliverables • Schematics and PCB layout files • Manufacturing outputs (Gerber, drill, pick-and-place, tested BOM) • Assembled and first-article-tested boards • Sensor integration report confirming stable operation with...

...fabricate, and bring-up custom PCBAs that drive a control system while cleanly interfacing with three sensor classes—temperature sensors, motion detectors, and cameras. Form factor, power budget, and component selection all matter in this build; I already have target size dimensions, allowable power envelope, and a shortlist of preferred parts that we will refine together. Once we lock the architecture you will prepare the complete design package, handle a short prototype run, and validate the hardware with the sensors hooked up. Deliverables • Schematics and PCB layout files • Manufacturing outputs (Gerber, drill, pick-and-place, tested BOM) • Assembled and first-article-tested boards • Sensor integration report confirming stable operat...

I’m looking for a complete design-and-build solution for a smart dispenser that can handle dry food, wet food, and a variety of home-cleaning products in a commercial environment. The core requirement is an automatic sensor-based mechanism that lets customers select and fill exactly the quantity they need, reducing waste while streamlining self-service. Functionally, the unit should: • Recognise a container placed beneath the spout, trigger dispensing automatically, and stop precisely at the chosen weight or volume. • Keep wet and dry chambers fully sealed to avoid cross-contamination, odour transfer, or moisture ingress. • Be robust enough for daily public use—think stainless steel or food-grade polymers that are easy to wipe down and resistant to ...

...• Launch, config, and calibration files specific to this sensor pair • Clean MAVROS topic bridge so the flight controller receives continuous, filtered pose updates • Step-by-step documentation plus a repeatable test procedure; include a sample rosbag proving the accuracy target inside a mock boiler environment Acceptance criteria • ≤ 5 cm cumulative drift over 10 minutes of continuous movement inside a boiler • CPU load below 70 % on the Xavier NX during operation • Code builds with colcon, uses only standard ROS 2 dependencies, and runs headless You are free to base the solution on FAST-LIO2, LOAM, RTAB-Map, or a custom EKF/UKF—just explain your choice and show how it meets the accuracy requirement. Share any sensor s...

...defined the core user experience for Gap Gauge—a club-mounted, Bluetooth-enabled sensor that pairs with a companion mobile app to help golfers dial in wedge shots under 100 yards. The software roadmap is clear, but the next big milestone is turning the hardware concept into a reliable, production-ready prototype. Here is where I need the most support: • Sensor hardware development – schematic, proof-of-concept build. The unit must sit unobtrusively on the shaft or golf glove, survive repeated swings, and stream swing-path data in real time over Bluetooth Low Energy. The embedded side will revolve around a high-accuracy IMU; I do not yet have a preferred model, so I’m looking for guidance on the best sensor. On the software side the mobile ...

...engine parameters; the other carries generator status and electrical load data. The program needs to read, display, and where appropriate act on that information (alarms, shutdowns, load shedding, etc.). Control logic Write all PLC logic necessary to start, stop, and protect the genset, handle input/output interlocks, and manage fail-safe states. Electrical knowledge is essential so that trips, sensor scaling, and safety chains are implemented correctly. Deliverables 1. Compiled CodeSYS project file for the HED 713 2. All graphic assets and symbol libraries used 3. Basic operating manual or inline comments explaining configuration steps Please include a sample of previous CodeSYS or HED work when you respond. I will pay hourly and agree final terms once I’ve re...

...knowledgeable crop-management professional to help me get the most out of my current drip irrigation set-up. The goal is to fine-tune scheduling, flow rates, and moisture monitoring so the plants receive exactly what they need without wasting water or nutrients. You’ll start by reviewing the field layout, crop type, existing emitters, and pump capacity that I’ll share through maps, photos, and sensor logs. From there, I’d like clear, step-by-step recommendations on: • Ideal irrigation intervals and run-times for each growth stage • Adjustments for seasonal weather swings and soil texture variations • Practical ways to detect and prevent clogging, pressure loss, or uneven distribution • Any affordable hardware or software upgrades&mdas...

I have an Excel file that contains several years of air-quality readings for multiple locations and I’d like to turn it into a small cross-platform app built with Flutter. The core focus is historical data analysis—no live sensor feeds for now—so the app should read the imported dataset, store it in an AWS-based backend that you set up, and let users explore the information through clear graphs and charts. Here’s what the first release needs to achieve: • Import pipeline: take the Excel sheet I provide, parse it, and load it into an AWS data store of your choice (RDS, DynamoDB, or S3 + Athena all work; pick what best fits Flutter and cost considerations). • API layer: expose endpoints that supply the front-end with trend data over time and compa...