Electrónica Jobs

Busco apoyo de un ingeniero de hardware con sólida experiencia en diseño de circuitos, concretamente digitales. Compartiré los requisitos funcionales y la hoja de datos de los componentes clave; tu misión será plasmar todo en un esquema limpio y listo para pasar a PCB, cuidando la integridad de señal y las buenas prácticas de EMC. Entregables esperados: • Esquema completo en Altium Designer o KiCad, incluyendo anotaciones claras. • Lista de materiales (BOM) detallada con referencias de proveedores. • Notas técnicas que justifiquen elecciones de reloj, dominios de potencia y restricciones de enrutado. • Orientación breve para la etapa de layout, para que la transición sea fluida. Valoro una c...

I am building a small-scale oil-handling package and need a Siemens PLC program that keeps product moving efficiently while making sure tanks never run dry. The core of the job is to write, test, and document logic that optimises flow, pulls accurate readings from our flow sensors and low-level sensor, and then drives the valves, pumps, and any other actuators that respond to those readings. Everything must tie neatly into the HMI; I’d like operators to have both a touchscreen view and a secondary PC or hard-key option so they can work comfortably from the panel or the control room. The system’s sole purpose is process optimisation, so response time and deterministic behaviour are critical. I am already committed to Siemens hardware (S7-1200 series with a basic comfort panel) ...

# Projektbeschreibung – „Protocol“ ## Projektübersicht **Protocol** ist ein Multiplayer-Social-Deduction-Spiel für PC, das Elemente eines taktischen Shooters mit einem Rollen- und Täuschungssystem kombiniert. Das Grundprinzip orientiert sich an Spielen wie **Trouble in Terrorist Town (TTT)** und **Among Us**, soll spielerisch und visuell jedoch stärker in Richtung eines modernen Third-Person-Shooters gehen. Das Spiel wird mit **Unreal Engine 5** entwickelt. ## Grundidee Mehrere Spieler befinden sich gemeinsam auf einer Map. Zu Beginn einer Runde kennen die Spieler ihre Rollen noch nicht. Nach ungefähr **15 Sekunden** werden die Rollen zufällig verteilt: * **Innocent** * **Traitor** * **Detective** – nur bei ausreichend groß...

I'm looking for an experienced PCB designer to review and fix a double-layer PCB for a consumer electronics bluetooth relay application. I currently have KiCad files along with a BOM and CPL files. I have been unsuccessful getting this all the way from design to production. I also want to retain copies of revised KiCad files along with BOM & CPL files. I would expect this should take someone under 10 hours, if you are looking for a simple easy and fast task. Key Requirements: - Design a double-layer PCB - Application: Consumer electronics (Bluetooth) - Assist with ordering process through Ideal Skills and Experience: - Proficiency in PCB design software - Experience with double-layer PCBs - Knowledge of communication modules and consumer electronics - Familiarity with JLCPCB...

JP Visual Ads – Kanchipuram is looking for an experienced LED Video Wall Technician on a PROJECT BASIS. This is NOT a full-time job. We will contact the technician whenever we receive a customer order or LED video wall project. The technician should be available to come to the project site when required and complete the installation, setup, operation, troubleshooting and dismantling work. LOCATION: We prefer technicians based in Kanchipuram or Chennai, or nearby areas who can travel to Kanchipuram/Chennai project locations when required. WORK REQUIREMENTS: * LED video wall installation and dismantling * Mounting LED panels/modules and building the required frame * Power and data cable connection * Processor/controller setup and configuration * Basic LED display troubleshooting * S...

I’m building an industrial-grade robotic setup and need a sharp embedded-systems mind to move the control electronics from concept to reliable hardware-in-the-loop operation. The work centres on firmware that drives motors, interprets sensor data and communicates over CAN bus or OBD-II–style diagnostics. Most of the prototyping will happen on Arduino or ESP32 boards before we freeze the design onto a custom PCB, so familiarity with Altium Designer or KiCad for schematic capture and layout is essential. Here’s how I see the collaboration flowing: • Translate high-level motion requirements into C/C++ firmware with clean, well-commented code. • Select, integrate and tune motor drivers, encoders and safety interlocks so the robot meets industrial-speed repeatab...

I have an Allen-Bradley CompactLogix processor installed at my facility in Ridgefield, NJ 07657 and I need a ladder-logic program that fully automates our conveyor line system. The goal is straightforward: once the operator presses START the line should sequence itself, react to its sensors, and shut down safely on faults or an E-Stop, all while remaining easy to troubleshoot. Hardware and software already on hand: 1- allen bradley 5069 l330er • CompactLogix controller with standard 24 V DC I/O cards • A mix of photo-eyes, limit switches and VFD-driven motors • Studio 5000 Logix Designer for programming What I expect from you • A clean, well-commented .ACD project file written in ladder logic • Tag database and I/O map that match my wiring • Brief...

Project Title MATLAB/Simulink Tutor Needed for PMDC Motor, Fan Load and PID Control Project Project Description I am looking for an experienced MATLAB/Simulink tutor to provide technical guidance for a university electromechanical systems project involving a permanent-magnet DC (PMDC) motor, an industrial fan load, and PID speed control. This is a tutoring and technical-support project. I must personally complete and submit the assessed work. The freelancer should explain the modelling process, help identify errors, review my independently prepared model and results, and provide constructive feedback. The freelancer must not write or submit the final assessed report on my behalf. Topics Covered The project includes: Developing a PMDC motor model in Simulink from its electrical and mechanic...

More details: What type of electrical project do you need a cost estimation for? Commercial What information should successful freelancers include in their application? Past work What specific aspects of the commercial project do you need cost estimation for? Full class B cost estimation

4-Layer ESP32 Hardware Optimization, LTspice/ANSYS Thermal Simulation & Production PCB Package ******Project Budget is 30-60 USDS Best offer within this budget wins.******** IMPORTANT: NO PLACEHOLDER BIDS, Proposals starting with generic templates or placeholder quotes will be immediately declined and reported. To prove you have read and understood the entire project scope, your proposal MUST start with the exact phrase: HARDWARE-EXPERT Project Overview: We are seeking an expert Senior Embedded Hardware / PCB Design Engineer to finalize, simulate, optimize, and release a high-reliability, 4-layer ESP32-based industrial electronic system. This project demands strict adherence to engineering standards, component lifecycle management, galvanic isolation, and rigorous...

Need PHD guidance for student of VLSi on Optimization of Hetro junction Tunnel field effect Transistor for nano VLSI applications. From identifying Research Gap to final results. Work to be carried out in Silvaco Tcad

I'm seeking an experienced engineer to design a high voltage (HV) module. The module will convert 12V DC to 15kV with a current under 500 microamperes. Key Requirements: - Input: 12V DC - Output: 15kV - Current: Under 500µA - Voltage Regulation: Moderate precision - Form Factor: Custom size to fit specific industrial machinery Ideal Skills and Experience: - Expertise in high voltage design - Experience with voltage regulation techniques - Proficiency in custom electronics design - Background in industrial machinery applications Please provide samples of similar projects you've completed.

I have a Particle Boron and want it turned into a small proof-of-concept that watches two reed switches and a single split-core current transformer. Whenever either switch changes state or the CT reports a reading outside user-defined limits, the Boron should push an SMS straight to my phone. Please build the firmware, wire the sensors, and set up the cellular messaging so the text includes three key pieces of information whenever a condition is met: the live state of each reed switch, the measured current, and a timestamp noting when the limit was crossed. I also need your guidance in deciding the actual thresholds for both the switches and the current transformer, so factor parameter-setting into the workflow. A concise wiring diagram, commented source code ready for Device OS, and a q...

Assalam o alaikum, I am looking for Electrical & Electronics Engineers from PAKISTAN to be a part of my team and work on multiple tasks related to Circuit design, Embedded Systems, Control Systems, Power Systems etc. Applicants should have strong expertise in following softwares' Proteus Multisim TinkerCAD MATLAB/SIMULINK Applicants should have good expertise in writing short and long reports e.g. Final Year Project Reports. You should be well aware of Plagiarism Policies for writing technical documents.

I have a piezo-based wet/dry sensor concept that relies on tracking resonance changes in a PZT ceramic between 20 kHz and 500 kHz. When the tip is in air the vibration is high-Q with a large voltage swing; when any liquid covers it the amplitude drops, the Q-factor falls, and both phase and resonant frequency shift. I now need an electronics specialist who can turn this working principle into a repeatable, field-ready solution. The job covers selecting the drive topology, designing the analog front-end, and implementing a small digital section that continuously excites the ceramic, samples the returning signal, and decides “wet” or “dry” in real time. Accuracy, low noise, and robust thresholding against temperature or viscosity changes are essential. Delive...

I have a Particle Boron and want it turned into a small proof-of-concept that watches two reed switches and a single split-core current transformer. Whenever either switch changes state or the CT reports a reading outside user-defined limits, the Boron should push an SMS straight to my phone. Please build the firmware, wire the sensors, and set up the cellular messaging so the text includes three key pieces of information whenever a condition is met: the live state of each reed switch, the measured current, and a timestamp noting when the limit was crossed. I also need your guidance in deciding the actual thresholds for both the switches and the current transformer, so factor parameter-setting into the workflow. A concise wiring diagram, commented source code ready for Device OS, and a q...

The objective of this project is to develop a underwater mechanical scanning sonar system capable of retrieving the full echo response output from the single beam echo sounder device. This device is intended to use in shallow waters such as ponds and lakes of max depth of 20 feet. The range covering is targetted at 50meters. The system will use a Single beam sonar device (Transducer + integrated processing electronics to produce full echo profile output) with 500KHz frequency and narrow beamwidth. The device is mounted on a base using a stepper motor and will rotate from 0° to 180°, obtained full echo response at each step. These measurements will be stored on an onboard memory of the controling unit like Raspberry Pi. The sonar device will be in the water for not more than 15min...

I’m upgrading my house to a fully connected smart-home and need an experienced electrician who is comfortable with residential automation from the breaker panel right through to the phone app. Scope of work • Smart lighting • Security systems (cameras, sensors, alarms) • Climate control (thermostats, smart vents, HVAC integration) • Any additional automations you believe will improve convenience or energy efficiency The job starts with a review of my current wiring and a clear plan for how the new low-voltage and mains runs will coexist safely. I expect neat cable management, labelled circuits, and compliance with all local codes. You’ll specify the hubs, switches, relays, and controllers—whether that ends up being KNX, Lutron, Zigbee/Z-Wave,...

# Custom PCB Design for Camera Smart Glasses I am looking for an experienced **embedded hardware/PCB designer or engineering firm** to design a complete PCB for camera-equipped smart glasses capable of **still photo capture and live video streaming**. ## SoC The designer can select the most suitable SoC from: * **Allwinner V821** * **Rockchip RV1103** * **Rockchip RV1106** Please recommend the best option based on **camera/MIPI support, power consumption, thermals, USB capabilities, software/SDK support, availability, and PCB complexity**. Reference designs that may be used include **LicheeRV Nano, Luckfox Pico Mini, and Avaota F2**. ## Core Requirements * Single onboard **Sony IMX or equivalent camera**, minimum 1080p * MIPI CSI-2 camera interface * Still photo capture + live vide...

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 midway through a personal project and need a seasoned Python mind to guide me from solid intermediate skills to confident, production-ready code. I’m looking for help that spans the full spectrum: refining my grasp of core syntax, strengthening advanced design patterns and optimisation techniques, and making better use of popular libraries and frameworks that fit the project’s needs. Here’s what I have in mind: • Regular, live coaching sessions where we review my code, untangle issues, and discuss best practices. • Clear homework or mini–milestones so I can apply what we cover right away. • Practical walkthroughs of any libraries we decide to incorporate, plus advice on structuring the overall solution. The end goal is to ship this pro...

Hi,I am building the DefendX Tactical Smartwatch. I need an expert hardware engineer to design the board completely from scratch—starting with component selection and schematics, all the way through 4-layer PCB layout and physical lab testing. Project Requirements (42×42 mm, 4-Layer Board): Core: ESP32-S3 (Compact module like the MINI series). Radios: Wi-Fi/BLE, Sub-GHz LoRa (e.g., SX1262), and GPS (e.g., SIM68M). Sensors: Biometrics (HR/SpO2 + Temp) placed wrist-facing on the bottom layer, plus a 9-axis IMU and Compass. Power & Storage: LiPo battery management (with a central cutout pocket on the PCB for the battery) and SPI NOR Flash. Your Scope of Work: BOM Selection: Pick reliable components that are actively in stock at JLCPCB/LCSC. Schematics: Design the ...

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 call, as l...

I have a junior engineer building the early schematics for an asset-intelligence prototype and I need an experienced embedded-systems specialist to guide the hardware design, write the firmware, and get the first units reliably streaming data to the cloud. The boards must interface with temperature, pressure and motion and more sensors, carry out real-time analysis, perform basic filtering, then aggregate and compress the packets before they leave the device. Security on the wire is non-negotiable, so please be comfortable implementing encrypted transport and key management on resource-constrained MCUs. You will collaborate directly with us on: • Selecting the optimal MCU / wireless stack and finalising the schematic • Integrating the three sensor types and validating their ...

I'm seeking an experienced PCB designer to create a complex, multi-layer schematic for an industrial radio. The schematic will incorporate analog, digital, and mixed-signal components. Key requirements: - Design complex, multi-layer PCB schematics - Incorporate analog, digital, and mixed-signal components - Experience with industrial equipment is a plus - Proficiency in PCB design software (e.g., Altium, Eagle) Ideal candidates will have a strong background in electronics and a proven track record in similar projects. Please provide samples of previous work.

I’m building a compact board whose sole mission is clean, reliable power distribution. I already have the system requirements mapped out at a high level; now I need an experienced PCB and embedded engineer who can turn those requirements into production-ready hardware and firmware. The job covers the full design flow: capturing the schematic, creating the PCB layout with attention to thermal paths and EMI, selecting components for efficiency and availability, and writing the embedded code that supervises voltage rails, fault flags, and soft-start logic. I expect good engineering practices—proper net-naming, clear documentation, and design files that open without issue in KiCad or Altium. Deliverables • Complete schematic (PDF + source) • PCB layout files and Gerbe...

I need a freelancer to help locate the source of radio signal interference in an urban environment. Requirements: - Use triangulation techniques to pinpoint interference source - Work in complex urban settings with potential obstructions - Provide detailed reports on findings Ideal Skills: - Experience with radio frequency (RF) technology - Familiarity with urban signal behavior - Strong analytical and reporting skills

Project Title 800 V / 400 A Pulsed Constant-Current Power Supply – Design Team Project Overview We are seeking an experienced power electronics team to design an 800 V / 400 A pulsed constant-current PSU, including full system architecture, simulation, schematic design, PCB layout, and EMI/EMC compliance. This is a high-power HV pulsed system requiring proven expertise in SMPS design, SiC/IGBT power stages, magnetics, high-current PCB/busbar engineering, and EMI/EMC mitigation. A multi-disciplinary team is strongly preferred. --- System Requirements - Input: 3-phase, 380 VAC, 50 Hz - Output: Pulsed constant current - Max voltage: 800 V - Max current: 400 A - Load: 2 Ω - Current accuracy: ±1% - MCU-based pulse control - Controlled rise/fall tim...

I’m upgrading a material-enrichment line that includes tag extraction, floc separation and a draft bill of materials. The immediate goal is to translate what I already have into a fully workable enrichment process: confirm the flow, size and specify each piece of equipment, and document operating parameters so procurement and commissioning can begin right away. You will: • Validate and optimise the enrichment stage, integrating tag-extraction and floc-handling steps. • Deliver a process flow diagram, refined equipment list/BOM and concise operating guidelines suitable for hand-off to my purchasing team. I’m moving fast, so only reply if you can start immediately. Point me to past work on comparable enrichment or separation systems—those references will decide ...

I need robust, well-documented firmware that lets an ESP8266 on the Arduino platform both send and receive infrared commands for multiple air-conditioner remotes. Serial command-line interaction over USB or Telnet is all that’s required; no web or mobile interface is necessary. Core tasks • Build or adapt an Arduino-compatible sketch that scans incoming IR frames, decodes them, and logs the raw timing as well as the decoded protocol and data. • Implement a complementary routine that allows me to replay captured frames or craft new ones from the command line, then transmit them through an IR LED with correct carrier frequency and timing precision. • Structure the code so adding or tweaking protocols is straightforward—I will be experimenting with a variet...

need a DDR4 PCB layout designer. The job covers the full physical layout, tuned for high-speed signal using Mentor tool PADS PCB.

I need a full EasyEDA project—schematic and routed PCB—for a tiny Atmega32U4 board that lets a computer drive a single external LED through a 3-pin XH-JST connector (GND / 5 V / LED). The board must talk and be programmable over a horizontal USB-C port and should remain as small as practical without sacrificing good layout practice. Core requirements • EasyEDA schematic using the Atmega32U4, including crystal or resonator, USB-C E-Markers (where needed), ESD protection, boot-cap circuitry and the standard reset network. • Break-out to one XH-JST-3 plug clearly silkscreened with the GND, +5 V and LED symbols. • Primary power supplied by USB-C 5 V rail. • Firmware that gives basic functionality: detect USB power, expose the MCU as a simple USB HID to ...

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I want a data-backed shortlist of electronics products that I can launch through Amazon FBA in the Indian marketplace. My priority is clear: the item must show reliably high demand. I have not narrowed the search to any single sub-category, so feel free to explore everything from mobile accessories to emerging smart-home gadgets if the numbers work. Here is what I need from you: • 1 product opportunity presented in an easy-to-scan report (PDF or Google Sheet). • For each product: monthly search volume, estimated sales, seasonality notes, current top-seller pricing, FBA fees, landed cost estimate, and projected net profit per unit. • Evidence of demand drawn from tools such as Helium 10, Jungle Scout, Keepa or similar. Screenshots or shared links are fine.. Acceptance crite...

Project : to design Battery charger and BMS(Battery management system) Existing Battery Configuration 2 × 12V, 100Ah Sealed Lead Acid (SLA/VRLA) batteries connected in series (24V DC system) Scope of Work We require a production-ready solution comprising an intelligent battery charger and BMS for continuous industrial operation. Battery Charger (Intelligent 24V SLA battery charger) 1.⁠ ⁠Automatic Bulk, Absorption & Float charging 2.⁠ ⁠Configurable charging current 3.⁠ ⁠Temperature-compensated charging 4.⁠ ⁠Over-voltage, over-current and short-circuit protection 5.⁠ ⁠Reverse polarity protection 6.⁠ ⁠High efficiency design suitable for 24×7 operation Battery Monitoring & Protection  1.⁠ ⁠Individual battery voltage monitoring  2.⁠ ⁠Total battery bank voltage monitori...

I am building a proof-of-concept 2D LiDAR unit from the ground up and need a mainland-based embedded electronics engineer who can handle every step of the design and bring-up process. The goal is a compact indoor scanner that excels at obstacle detection and terrain mapping while holding tight, high-accuracy tolerances. What the work involves You will take the idea from blank sheet to working board: optical layout, high-speed signal processing, motor/galvo drive, power management, firmware, and a simple USB/TTL data interface that streams polar coordinates for fusion in my existing SLAM stack. Expect heavy 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 env...

We are developing an industrial AI camera system based on the Rockchip RV1126B processor and onsemi AR0234 global-shutter image sensors. We want to use a ready-made RV1126B SOM/core board and develop a custom carrier PCB. Our internal team will concentrate on AI and application software. The freelancer/company must handle hardware design, PCB layout, board bring-up and low-level Linux camera integration. The system will support: Two GMSL2 camera inputs One local AR0234 MIPI CSI-2 camera Three simultaneous camera streams Isolated industrial trigger input Gigabit Ethernet for compressed preview and communication 3.3 V TTL UART service/debug connection 12–24 V DC power input Proposed Architecture RV1126B SOM/core board Minimum 2 GB RAM Minimum 16 GB eMMC MAX96716A dual GMSL2 deserialize...

I’m putting together a Wi-Fi light switch around the ESP32 and I need complete firmware plus a small, self-hosted web interface so the unit can sit on my network and drive a dimmable light circuit. From the browser I should be able to turn the light on/off, set brightness, schedule automatic events, and reach the page securely while away from home. Key functions • Web interface (no mobile app requirement) served directly from the ESP32 • Features enabled: Scheduling, Dimming control, Remote access over the internet/LAN • Clean, responsive HTML + CSS + JavaScript (vanilla or lightweight framework) • MQTT support or lightweight REST endpoints are welcome if it simplifies remote control, but not mandatory Deliverables 1. Well-commented ESP32 source code r...

Engineering Proposal – Slim Custom Jewellery Tablet (MVP) We are looking for an engineering partner to develop a slim, premium, purpose-built touchscreen tablet for our jewellery business. The device will run our proprietary jewellery software and should provide a complete integrated solution: * High-quality touchscreen optimized for jewellery images/design exploration * Android-based embedded system or another suitable OS * Processor, RAM, storage and Wi-Fi * No camera required * Slim, lightweight custom enclosure * Reliable power/battery system * Automatic launch of our application on startup * Kiosk/locked-device mode * Internet/cloud connectivity * Local database and synchronization * Jewellery gallery and product exploration * Jewellery creation/configuration * Customer and prod...

I'm seeking an experienced circuit designer to create a digital control system for a Bi Color LED Matrix. The core component of this system will be a microcontroller that can add good sound quality designed by software in which each LED will have a sound frequency. Key Requirements: - Design of an LED Matrix of 25 columns and 6 rows - Integration of a microcontroller and some quality sound. - Application focused bluetooth control systems iphone and android Ideal Skills and Experience: - Expertise in digital circuit design - Proficiency with microcontrollers - Experience in control systems for bluetooth iphone , android applications. Please provide examples of similar work.

I have an ESP32-D dev board and three unused PAA5100JE optical-flow sensors. I only need to bring one 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, MOS...

I’m putting together a new product prototype that pairs a PAA5100JE optical-flow breakout board with an ESP32. The goal is to have the ESP32 handle Wi-Fi 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 comman...

I want an ultra-low-power driver board that can run a small E-Ink panel completely untethered. The module must expose both WiFi and Bluetooth so it can receive data from a web API or a local mobile app and refresh the screen on demand. Power autonomy is critical: in addition to a rechargeable battery the board should accept a compact solar cell and scavenge ambient 2.4 GHz energy (WiFi harvesting) to keep the system alive for months without manual charging. Core expectations • Electronics: schematic, component selection and PCB layout optimized for sub-100 µA standby, including the WiFi/BLE SoC, power-path management, solar MPPT, RF-to-DC harvester and battery protection. • Firmware: ESP-IDF/Arduino or similar code that boots, joins WiFi or BLE, pulls a JSON payload, d...

I need a working prototype of a fully-automated roti-making machine that can turn out 100 soft, evenly cooked rotis in 30 minutes while keeping the total build cost under ₹10,000. Durability is my top priority: gears, belts, heating plates, and the overall frame must stand up to continuous use without needing frequent maintenance. Heating flexibility is also essential. The design has to accept both induction coils and standard 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 Ar...

Location: Remote (APAC) | Type: Freelance, Project-Based | Travel: Required (fully covered) This flexible freelance role is ideal for an experienced sourcing professional who enjoys managing supplier relationships, procurement, and negotiations on a project basis. Key Responsibilities •⁠ ⁠Conduct market price research and negotiate pricing, MOQ, lead times, and payment terms •⁠ ⁠⁠Prepare supplier comparisons and sourcing reports •⁠ ⁠Liaise directly with suppliers and internal stakeholders •⁠ ⁠⁠Travel to supplier factories or trade fairs when required for inspections, audits, or in-person negotiations •⁠ ⁠⁠Identify sourcing risks and recommend solutions Must-Have Requirements •⁠ ⁠Solid understanding of electronics and the ability to technically evalu...

My small UK business is ready to move to an AIKO ABC solar array and I need a specialist who can take me from concept to switch-on. Above all, I value peak efficiency and performance, so every recommendation must squeeze the maximum kWh out of limited roof space while keeping operating temperatures low. Scope of work • Bespoke system design: size the array, optimise panel layout, and model annual generation using the latest UK irradiance data. • Equipment specification: AIKO panels are my first choice, but please show comparative numbers for JA Solar so I can see the trade-offs. Pair the array with a smart inverter (we currently favour SolarEdge, Sigenergy or Solis) and add battery storage to capture excess daytime production. • Warranty alignment: 25-year manufactu...

I’m developing a hardware product that blends moving mechanical parts with custom electronics and need a versatile engineer to carry the concept from rough sketches to a small-batch-ready prototype. You will start by reviewing my idea, asking clarifying questions, then turning the requirements into detailed mechanical drawings and electronic schematics. From there, I’ll rely on you to choose appropriate components, model the assemblies, lay out the boards, and iterate until everything fits, functions, and can be manufactured without surprises. Deliverables • Native CAD files (STEP or similar) and clear assembly drawings • Complete electronic design package with schematics, layout, and Gerber files • Consolidated bill of materials with readily available pa...

I need someone physically based in London who can drop into local CeX-“We Buy” branches, pick up the RAM memory modules I specify, and forward them to me in France. You’ll be handling electronics, so I’m counting on you to: • Confirm the exact model and capacity in-store before paying (I’ll send a shortlist and budget per stick). • Keep the receipt and snap a quick photo so I can verify the purchase remotely. • Pack each module in an anti-static sleeve, add bubble wrap, and box it firmly—secure packing is a must. • Ship with a fully tracked service (Royal Mail International Tracked, ParcelForce, or similar) and share the tracking number right away. I reimburse the full store cost plus your fee and postage as soon as I have the...

I'm looking for an expert to design and implement a battery energy storage system specifically for solar power. The primary purpose of this system is to store renewable energy. Key Requirements: - Design an efficient battery energy storage system tailored for solar energy. - High capacity (preferably over 100 kWh). - Ensure system is scalable and durable. - Provide installation and maintenance support. Ideal Skills and Experience: - Expertise in renewable energy systems, especially solar. - Experience with battery storage technologies. - Strong background in energy system design and implementation. - Knowledge of local regulations and safety standards.

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, historical reports, alert not...