Electronics Jobs

Have a working circuit diagram for a device based on the ESP32-WROOM-32E module. The system is powered from an external supply (5V / 8V / 12V). The next step is to convert this schematic into a complete, production-ready, single-sided PCB design using Altium Designer. Scope of Work The objective is to develop a fully functional and manufacturable PCB design that meets the following requirements: Convert the provided circuit diagram into a clean, well-structured schematic in Altium Designer Design an optimised single-layer/double-layer PCB layout Ensure the PCB strictly follows the fixed board outline dimensions (to be provided) Implement clear silkscreen labelling for all components and connectors Optimise component placement and routing for reliability and manufacturability Deliverab...

I’m looking to build a simple wearable mask prototype that combines light and vibration to create a relaxing sensory experience. The device should include LED lights (preferably RGB) positioned so they shine through closed eyes and run different light patterns. It should also include 1–3 small vibration motors that sync with the light patterns to enhance the experience. I’d like a few basic modes such as calm (slow and soft), medium, intense, and a random mode that generates varying patterns. The patterns should transition smoothly and not feel harsh or abrupt. The device should be controlled with 2–3 simple buttons (power and mode switching). No app or connectivity is needed. It should be powered by a rechargeable battery (USB-C preferred). The physical build d...

Project Description I’m looking for an experienced electronics or instrumentation engineer to design and build a small calibration coil system that generates a known magnetic field for laboratory measurements. The device will be used to calibrate a sensor that detects short, weak magnetic pulses (~1 ms, ~10 nT), so it needs to support time-varying fields up to about 1 kHz. Requirements Build a circular coil or Helmholtz coil (5–10 cm size) Use non-magnetic materials Include a simple drive circuit (MOSFET or similar) Include a precision current measurement (sense resistor + output) Provide outputs for monitoring the current waveform Ensure it works with short pulses (~1 ms) Deliverables Fully assembled working device Basic wiring schematic Documentation of coil size, number o...

I’ve designed a product that springs to life at the tap of a phone or web button, and I need a talented maker to turn that idea into a fully functioning prototype. The core is a pop-up mechanism—whether you favor solenoids, springs, or a tiny geared motor, I’m open—as long as it rises smoothly, reliably, and safely. Control will come from a Raspberry Pi or Arduino (again, whichever you feel best suits the task), with clean wiring and firmware that listens for a remote trigger. Alongside the hardware, I’ll need a very lightweight app or web page that exposes a simple trigger; bonus points if you can add basic status feedback without over-engineering. I’m happy to supply sketches and dimensions. To keep the conversation focused, please share: • Pho...

I’m building a palm-sized device that helps automate at-home medication. Inside it sit two independent plungers driven by micro servos, a vibration motor, a small speaker for audio prompts, and a 1.68-inch colour display for on-device instructions and feedback. All of these elements need to live on a custom PCB, run from a single rechargeable battery that is properly sized for daily use, and work seamlessly together. You will receive the full parts kit, so your focus is on: • designing the board, • assembling and reflowing it, • loading the firmware, and • proving that everything operates exactly as intended. The most important interaction is tight, reliable coordination between the user’s button press (or other trigger you recommend) and the t...

Short Summary of the Research This research focuses on designing a high-gain antenna for 5G communication at 36–38 GHz (millimeter-wave). Since 5G at these frequencies suffers from high signal loss, the study aims to improve signal strength using an efficient antenna design. The proposed solution is a compact stacked slot antenna, which provides: Wide bandwidth (34–44 GHz) Stable radiation pattern (consistent signal in all directions) Minimum gain of ~6 dBi (higher in arrays) To improve performance, the antenna is developed in three stages: Single antenna element – basic design and testing 1×2 array – increases gain by ~2–3 dB 1×4 array – further improves gain (~6 dB increase overall) The study proves that increasing the number of antenna ele...

Design a complete electronic schematic for our smart orthotic insole device based on the given system requirements. The circuit will include multiple FSR sensors (Force Sensitive Resistors) for plantar pressure sensing and an IMU sensor for gait/motion tracking. Select and integrate suitable supporting components such as microcontroller, BLE communication module, power management circuit, battery charging unit, connectors, and signal conditioning circuits. Ensure proper sensor interfacing, analog signal acquisition, filtering, and calibration provisions in the schematic design. After schematic approval, develop a compact, optimized PCB layout suitable for wearable insole integration with size and flexibility constraints in mind. PCB must be designed for low power consumption, stable sensor...

**Title:** Fusion 360 Designer Needed – Complete Electronic Enclosure Design (Budget €30) **Description:** Hello, I’m looking for a freelancer experienced with **Autodesk Fusion 360** to complete the full design of an electronic enclosure. **What I will provide:** * PCB file in STEP format * A rough enclosure already started in Fusion * A reference visual (design style and colors to follow) **What I need:** * Complete enclosure design (top + bottom parts) * Clean and functional split of the case * Proper internal layout to fit the PCB * Speaker openings, button placements, and ports (USB, etc.) * Basic assembly logic (fit between parts) * Final design matching the provided visual (including color intent / finish) **Goal:** A clean, realistic enclosure ready for 3D p...

Hybrid Artificial Intelligence System for Autonomous Drone Detection Using Computer Vision and RF Signal Analysis The idea is to build AI detection system based on hybrid method (Computer vision and RF signal) and present results :Accuracy, Precision, Recall and False Alarm Rate Algorithms: Computer vision: YOLOv8 (Object Detection) RF analysis: CNN for Spectrogram analysis Merge in : Rule-Based Fusion • or Neural Network Fusion Dataset : Vision Datasets: • Anti-UAV Dataset • VisDrone RF Datasets: • DeepSig RadioML Dataset • Custom SDR Capture (HackRF / RTL-SDR) Budget : 150$

I need a custom harness to connect a Wi-Fi enabled smart door lock, potentially including installation assistance. Requirements: - Design and build a functional harness - Compatibility with Wi-Fi smart door locks - Potential installation support Ideal Skills: - Experience with electronic hardware - Knowledge of smart home devices - Proficiency in installation and setup

I’m outfitting an ArduCopter that runs 6-cell Li-ion packs and need a purpose-built Battery Management System. The board and firmware must continuously monitor pack health, actively balance the cells and speak Mavlink over CAN so the flight controller sees accurate live data. Core functions • Real-time battery monitoring with voltage, current and temperature reporting for every cell and for the full pack • Automatic cell-to-cell balancing to maximise capacity and cycle life • Safety layer that disconnects or limits power on over-charge, over-discharge or short-circuit events • Mavlink-over-CAN telemetry, using the standard ArduCopter battery status messages so Mission Planner and QGroundControl display everything without custom plugins What I expect as d...

The city inspector requires my main breaker panel to be outside, so the top priority is to relocate the existing interior box to the mounting location I have already set aside on the exterior wall of my single-family home. The service line has enough slack, but I will need a properly sized exterior-rated panel, weatherproof fittings, and code-compliant grounding/bonding once the move is complete. While you are here, two more electrical updates are needed in the kitchen: • Install new code-compliant, dedicated receptacles for the refrigerator and electric stove (each on its own circuit, GFCI or AFCI as required by the latest NEC). • Replace a failed light switch that controls the main kitchen ceiling fixture. Please handle permitting, coordinate utility shut-off if re...

I have a LabVIEW program that is already developed and mostly complete. The cRIO hardware is also installed and configured in LabVIEW. The goal is to control one gas pump and one water pump using LabVIEW. Currently, the water pump is working properly, but the gas pump is not functioning. We need to identify the root cause of this issue. For this purpose, we are looking for a LabVIEW specialist who can help diagnose and resolve the problem. In addition, we have two sensors whose readings need to be displayed in LabVIEW. List of tasks to be completed on this nearly finished LabVIEW project: 1. Control the gas pump speed (increase/decrease) via LabVIEW commands 2. Ensure that the water pump, which is already functioning, is not disrupted 3. Connect two sensors to LabVIEW and display the...

I need an embedded systems hardware design for an industrial control application focused on data collection. Key components include: - Microcontrollers - Sensors - Communication interfaces Ideal Skills & Experience: - Expertise in embedded systems design - Proficiency with microcontrollers and various sensors - Strong knowledge in developing communication interfaces Please provide examples of similar projects done.

I need reliable, industry-standard cutting, sewing, and stitching for a new line of cotton dog outfits and leash harnesses. All work must handle cotton fabric smoothly, with clean edges and reinforced seams that can withstand daily wear. The collection will cover small, medium, and large sizes, so consistency across multiple patterns is essential. You will receive detailed quantity breakdowns and measurement charts once we begin; I simply want to be certain every finished piece matches those specs without size creep from run to run. Your workshop should already be set up for production-level garment work—industrial overlock, straight-stitch, bartack, and pressing equipment—as well as quality-control procedures for strength testing on stress points like D-ring tabs and stra...

I need an experienced PLC programmer to troubleshoot and maintain a Mitsubishi PLC system in Pune. You will work with full documentation and codes. Key requirements: - Expertise in Mitsubishi PLC, preferably FX, Q, or iQ-R series - Strong troubleshooting skills - Familiarity with reading and interpreting PLC documentation and codes - Ability to work on-site in Pune

We are from SYNOD BIOSCIENCE and doing a project with an MNC for which we required an electrical engineer for a biogas-based plant project. We are looking for a freelance electrical engineer to develop complete electrical and instrumentation design based on the provided P&ID and vendor documents. The scope includes electrical load calculation and cable sizing, preparation of SLDs (PCC, MCC, and overall plant), GA drawings for MCC and synchronization panels, cable schedule and routing layout, MCC and control panel design, and synchronization system for the biogas genset. The role also involves PLC-based automation design including IO list, control philosophy, and interlocks, along with instrumentation integration as per the P&ID. Additionally, earthing, lighting, and cable tray desi...

I’m setting up an Eaton 93 E 40 kVA UPS paired with Ritar 80 Ah, 12 V batteries to keep our data-server room running smoothly when the grid fails. The goal is simple: dependable backup power for critical systems, with 1–2 hours of autonomy, no less. Here’s what I need from you: • A clear calculation of how many Ritar 80 Ah batteries (and how many strings) are required to reach the target runtime, taking internal losses and realistic load profiles into account. • A single-line wiring diagram that shows series/parallel connections, breaker sizes, and recommended cable gauges. • Step-by-step commissioning notes—everything from initial battery charging, through Eaton 93 E parameter settings, to a final acceptance test plan. • A brief maintenan...

I need a custom-shaped, single-layer printed circuit board produced quickly so I can test the mechanical fit and basic electrical routing for a new product I am developing. The overall board must stay as thin as practical; once we speak I will confirm exact thickness and any stack-up limits from my enclosure, but the goal is to minimise profile without sacrificing manufacturability. Here is what I will supply once we start: • A rough outline drawing and simple netlist showing the required connections • Components and preferred connector locations What I expect from you: • Review of my outline and placement to flag any manufacturability concerns • At least three fabricated prototypes shipped to me for bench testing Please use whichever professional tools you a...

I have a new industrial control system under development and now need the core PLC program written from scratch. The hardware has already been selected; I can share the full I/O list, functional specification and any wiring drawings you require once we start. Your role will be to translate those documents into a clean, well-structured PLC application, fully commented and ready for download to the controller. I’ll also count on you to: • model or simulate the logic so we can prove operation before installation • make reasonable tag-naming and memory-usage choices to keep future maintenance simple • supply the compiled program, the editable source file and a quick hand-off guide that explains each routine If you can stay available for remote support during first...

The project revolves around a Kinco PLC linked to its HMI, all developed in the D-Tool suite. I need the controller to handle three core jobs simultaneously: log key process data to non-volatile memory or an external database, push that data to a remote dashboard for live monitoring over TCP/IP, and execute closed-loop automated control of the machine. Connectivity is critical. The program must speak standard TCP/IP for the plant network and support both CANopen and raw CANbus frames so it can exchange data with existing field devices and a supervisory gateway. On the I/O side, the PLC will gather readings from temperature, pressure and proximity sensors, plus capture motor-RPM feedback for speed regulation. The logic should scale, so clean tag structures, well-commented code and clear H...

I already have step-by-step build notes for a tactile glove and the preliminary PCB design files. What I now need is practical help getting that board fabricated through PCBWay. Your job is to take my PCB files, carry out any touch-ups they still require—basic DRC fixes, panelisation or drill map tweaks—then upload the finished Gerbers and BOM to PCBWay, configure the order and place it. The glove relies solely on sensors, with pressure sensors and flex sensors called out in the documentation, so please double-check that the footprints and connector pinouts for those parts remain intact throughout your edits. Deliverables I expect: • Cleaned, production-ready Gerber, drill and pick-and-place files • Updated BOM highlighting the pressure and flex sensors used &bull...

I need a skilled embedded systems engineer to integrate the VS1010 for audio playback and recording in an embedded system. The VS1010 should specifically support WAV file format. Key Requirements: - Implement VS1010 for WAV audio playback - Integrate into an embedded system Ideal Skills and Experience: - Experience with VS1010 and audio processing - Strong embedded systems development background - Proficiency in handling WAV audio files Please provide examples of previous similar work.

I'm looking for an experienced developer to design an environmental monitoring system using the Arduino UNO R4 Wifi board and LoRa technology. The system will be used to collect data on environmental pollutants. Key Requirements: - Use of Arduino UNO R4 Wifi for data processing and transmission. - Integration of LoRa technology for long-range communication. - Development of a reliable power supply system to ensure uninterrupted operation. - Setup of sensors to detect environmental pollutants (specific sensors can be discussed). Ideal Skills and Experience: - Proficiency in Arduino programming and hardware integration. - Experience with LoRa communication systems. - Knowledge of environmental sensors, particularly for pollutants. - Strong background in power supply design for electro...

I need to replace my old SmartDrive-i2c-P.i.D. driver because of this: where, after several attempts, it is proven that the SmartDrive i2c P.i.D. driver does not run (at maximum motor speed) both motors on my side simultaneously

I’m inviting a handful of practicing hardware engineers or PCB designers to spend about 15 minutes inside my pre-launch web app, PartPilot (). Upload a BOM or punch in a part number, then tell me—straight, no sugar coating—what keeps this from becoming a tool you’d lean on every day. During my own testing, the ability to see stock information across four distributors in one glance feels like the killer feature, but I need fresh eyes. Point out what’s confusing, what’s missing, and what would make you actually pay for Pro. How this works • You must have real-world PCB experience; KiCad users are ideal, though Altium or EasyEDA is fine too. • Reply with a line or two about your experience designing boards or managing component sourcing. No ...

My shop’s 200-ton hydraulic press has begun producing an uneven press force that is affecting product quality. I need a certified hydraulic-systems professional who can come on-site, run a full diagnostic, and pinpoint the root cause of the performance issue. Scope of work • Conduct a systematic inspection of the entire press: power unit, valves, cylinders, hoses, filtration, and control logic. • Measure and log pressure, flow, and temperature at all test ports to verify whether the uneven force stems from inconsistent pressure, internal leakage, or a control fault. • Check alignment and structural components to rule out any mechanical binding. • Provide a concise report explaining findings, data readings, and photographs where useful, followed by step-by-s...

I’m putting together a new publication and need an experienced creative partner who can guide the entire process—from shaping the concept to delivering press-ready files. I’m still open on the exact format, so whether the final piece becomes a book, magazine, or brochure will depend on what best serves the content and audience we define together. Scope of work • Help me refine the publication’s purpose and target readers. • Recommend the most suitable format and page count. • Develop an editorial structure and visual style guide. • Create engaging content (articles, photos, illustrations) or coordinate with contributors as needed. • Design clean, modern layouts that balance readability with strong visual appeal. • Prepare fin...

I am developing a compact wearable lighting device based on an ESP32 (ESP-NOW communication + WS2812 LEDs + LiPo battery system). This project is already in progress. I have an existing schematic and PCB layout, but I am looking for an experienced engineer to review, improve, and finalize the design for production. This is not a one-pass project. It will likely require back-and-forth discussion and iterative refinement to arrive at the correct final design. I want to be clear that I will be actively reviewing the work and asking questions as I go. I need someone who is comfortable with that process and open to collaboration. I do not want a situation where I feel hesitant to point out concerns or request changes. --- ### Critical Requirement (Very Important) This device must reliably...

I’m looking for a specialist who can take my concept for a blast-freezer cold room and turn it into a fully engineered design package. The project is strictly design-focused—no installation or maintenance at this stage—and I want every decision to be backed by precise cooling-load calculations so the system runs at peak efficiency from day one. You’ll be sizing and specifying the entire refrigeration circuit, including compressors, evaporators, piping, controls, insulation, and airflow management. I also need layout drawings that show equipment placement, service clearances, and door locations, along with any notes that will help an installer understand the design intent. Please ground the work in current industry standards and typical food-grade hygiene requi...

I have a working Arduino Nano sketch that I now need running on an STM32. The project must be opened, built and flashed entirely inside STM32CubeIDE, so please base every file and configuration step on that toolchain. Key points you will handle • Rewrite the existing sketch for the chosen STM32 device, configuring clocks, GPIO, interrupts and peripherals exactly as needed. • Replace the current Arduino-style calls with HAL-based code generated in CubeMX, keeping the program logic identical. • The original sketch drives an OLED via a third-party library; the same display has to work on STM32, so include whatever open-source driver (U8g2, SSD1306 HAL port, etc.) you feel is most stable. • Alongside the source, provide a short step-by-step guide that shows how t...

PLC Developer (Chakan MIDC, Pune) We are looking for an freelance PLC Developer for on-site work at Chakan MIDC. Scope of Work: PLC programming, troubleshooting, and debugging HMI development, modifications, and issue resolution Diagnosing and fixing control system issues on-site Interfacing with sensors, actuators, and industrial equipment Supporting commissioning and testing activities Required Skills: Hands-on experience with PLCs (Siemens / Allen-Bradley / Mitsubishi preferred) Experience with HMI systems (WinCC, FactoryTalk, etc.) Strong debugging and problem-solving skills Ability to understand existing programs and modify them efficiently Familiarity with industrial communication protocols (Modbus, Profinet, Ethernet/IP) Location: On-site: Chakan MIDC, Pune Duration: Project-bas...

I need a control system for two electric motors, each drawing 2.5 amps. The motors should be controlled sequentially using manual rotary switches. Requirements: - Control both motors with manual rotary switches - Motors should be controlled sequentially Ideal Skills and Experience: - Experience with electrical systems and manual switches - Familiarity with controlling electric motors - Ability to design a simple, safe control setup

i want a PCB for in-situ, real-time verification of sensor integrity in a live without interrupting the control process of components of PCB for cooling, heating and humidity, communication ports and AutoDetect sensor frailer equipment' because hardware often operates in controlled, safety-critical, and validated environments layout Design with components of advanced PCB for control /set point and manage temp of cooling sensor , heating sensor and humidity sensors, light sensor, proximity sensor, water low sensor, pressure sensor, high/low voltage sensor, wire and wireless commination ports lan, usb, can bus, rs-485 etc, processor, ram, memory, and AutoDetect sensor frailer, all types of alarms like heater, compressor, open door, high/low temperature with voltage protection, tempe...

I need a complete electronic design for a next-generation health-monitoring smartwatch whose signature element is a high-resolution micro camera mounted flush to the wrist side of the case. That camera will analyse the wearer’s skin to extract deeper, image-based health insights beyond the usual heart-rate and SpO₂ readings. I am open to your proposals on exactly which metrics image processing can reveal, provided they are scientifically sound and can be handled by an embedded processor in real time. Core hardware requirements • High-resolution skin-facing camera, paired with a wearable-class microprocessor powerful enough to process or compress the image stream on-device. • Minimum 16 GB on-board storage for captured data. • Bluetooth for data sync, a vibrant T...

I’m holding an ageing but still functional dual-channel, 80 A DC reverse controller that was built for industrial truck-tarp systems about fifteen years ago. The original supplier is long gone and all I have left is the bare hardware in my hands—no CAD files, no schematics. To get this product back into reliable production I need you to capture the existing board and deliver a fresh manufacturing package that any modern fab house can use. I’ll supply high-resolution photographs of both sides, detailed close-ups of critical sections, and shots that include vernier-scale references so dimensional data can be extracted accurately. Scope of work • Reverse-engineer the circuitry into a clear single-line diagram that reflects the dual-channel, high-current H-bridge t...

I need my Signals & Systems assignment on convolution worked out by hand on a tablet or similar device, then exported as a single PDF. Every page should read like well-kept class notes: headings for each sub-problem, the core formulas up top, followed by every algebraic or integral step so the logic is easy to follow. Think of it as a hybrid between summary sheets and a full worked solution—both the key ideas and the detailed derivations must be there. Please write in a neat, clearly legible print style. No fancy calligraphy is necessary; consistency and readability matter most. Once finished, combine all pages into one PDF and make sure it opens cleanly on any viewer.

I need a production-ready printed circuit board for a compact consumer-electronics tracker. The board has to combine Bluetooth connectivity for smartphone pairing, GNSS positioning for global location data, a LoRa module for long-range updates, and a 3-axis motion sensor to wake the unit only when it moves. Everything will run from a single rechargeable battery, so careful power budgeting and a low-power microcontroller are essential. Form-factor will be small enough to slip into a key-tag style enclosure, so component height and antenna placement must be considered from the start. I’m flexible on the exact silicon—Nordic, Espressif, STM, Semtech, etc.—as long as you can justify part choice against current draw, cost and global availability. Please take the design from ...

I need one experienced PLC engineer to join our commissioning crew on-site for roughly 15 consecutive nights (16:00–24:00). The equipment mix is a backlight-assembly machine paired with a roller-conveyor line, all driven by Keyence PLCs. What you’ll actually do • Take the partially written specifications we supply, fill the gaps, and build fully functional programs for both the backlight machine and the conveyor line. • Load, test and fine-tune those programs on the factory floor until the machines run to target cycle time and quality without alarms. • Work side-by-side with our existing commissioning team, but operate independently when required; I’m counting on your proven project experience to keep nightly progress on track. Key expectations &b...

I already have firmware running on an ESP32-based board that includes an RJ45 RS-485/UART port, two analog inputs, several digital I/Os and a small audio stage that automatically answers a SIP/VoIP call and plays audio through an on-board speaker. What I need now is an elegant extension of that code so the same board can also feed data to– and receive commands from – an IoT dashboard app. The new build must keep every existing VoIP feature intact while adding: • A clean, non-blocking interface between the VoIP tasks and the new IoT task set. • Support for both voice playback and tone generation exactly as the current audio path provides. • Reliable sampling of the two AIs along with any DI events, packaged for MQTT/HTTP (whichever you find lighter on re...

Hi, here is the complete project Objective Design and simulate a compact microstrip patch antenna Target specifications: - Frequency: 2.45 GHz (ISM band - Size: < 15-20 mm (very compact - Thickness (substrate): < 0.8-1 mm - Type: Miniaturized Simulation requirements: - Achieve S11 < -15 to -20 dB at ~2.45 GHz - Impedance matching to 50 ohms - single clear resonance (no multiple unwanted dips Deliverables: - Final CST project file (.cst - S11 plot (1-5 GHz range - Timeline: - Need completion within few hours (urgent Please let me know once you review this and if we can proceed, I'lI confirm immediately. Thank you.

I have three interconnected PCBs for an IoT-enabled cooking system and I need a fresh, expert set of eyes on the schematics before they move to layout and certification. My main objective is to drive up reliability while making sure every track and component choice can sail through both UKCA and CE assessments without last-minute redesigns. Here is the current state of play: • Power PCB – handles distribution and uses fully-isolated 12 V AC relays • Controller PCB – AVR32DD32 MCU with four MAX31865 RTD ADCs and RS-485 bus • UI PCB – ESP32 (external esp32 approved antenna), RS-485 bus, 5-inch EVE4 touch screen, 4 x multicolour LEDs and audio out The Power board, the Controller board and the UI board all matter equally to me in terms of long-term robu...

I need three 7-10" quad-copters professionally put together and flight-tested in the UK. All the parts will be shipped directly to you; once they arrive I’d like the build, setup and maiden flights completed within roughly a week. Core spec: • Air-frames: 7-10" class • Electronics we will supply: FPV camera, GPS module and an onboard Raspberry Pi for extra processing • Flight controller: whatever board you are comfortable with, as long as the final stack runs PX4 flawlessly • Power: LiPo packs – please balance, secure and tune for safe discharge rates Your job starts with a clean assembly, neat soldering and reliable cable management, then moves on to firmware flashing, PX4 configuration, PID tuning and a short hover/flight test tha...

I am building a new solar-hybrid inverter around an Infineon reference design and need an experienced technical advisor who can work with me on-site in Bangalore, part-time, through the entire prototype cycle. Your guidance is required across hardware design, firmware development, hardware fabrication, integration and final testing. Most of the base schematics and application notes from Infineon are in hand; what I need now is a sharp eye and skilled hands to adapt those documents to my exact power ratings, oversee PCB layout iterations, supervise fabrication, bring the boards up safely, write and debug the control firmware, and validate the finished prototype under load. Expect plenty of hands-on lab work—oscilloscopes, power analyzers, thermal cameras, rework stations—plus...

I’m looking for a senior technologist who can sit with my Bangalore-based team and guide us through the full hardware-software stack of our new UAV prototype. The work is hands-on and spans three pillars: hardware design, embedded-software bring-up, and end-to-end integration testing. On the hardware side you’ll dive into sensor integration, power-management architecture, and lightweight frame design, checking schematics in Altium/KiCad, reviewing BOM choices, and helping us close EMI and thermal issues. In parallel, you’ll pair with our firmware engineers to refine drivers, control loops and companion-computer interfaces (C/C++, Python, PX4 or ArduPilot experience is ideal). Finally, you’ll shape and run a systematic integration-test plan—bench, HIL and flig...

I need a clean, well-commented Arduino sketch that drives a small traffic-light prototype using LEDs, push-buttons, and a couple of sensors (e.g., ultrasonic or IR) to regulate flow rather than just cycle through a fixed sequence. The idea is to simulate a real intersection where vehicle presence triggers state changes while manual override buttons allow testing of special conditions. Here’s what I expect: • The code must compile on the current Arduino IDE without extra libraries beyond the standard ones. • Normal operation: red, yellow, and green LEDs follow proper timing, but a vehicle-detection sensor shortens or extends green time to keep traffic moving smoothly. • A pedestrian button interrupts the flow safely, inserting a walk phase before resuming. &bul...

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I am developing a wearable electronic device for sports such as padel or tennis that allows players to easily record points during a match. The system consists of a small button worn on the player’s shirt that communicates wirelessly with a courtside speaker. When the button is pressed, the system updates the score and announces it audibly. Current Stage: Prototype development. The goal is to design a functional, low-cost, and manufacturable electronic system that can later be scaled to production. System Components: 1. Wearable Button Unit * Small, lightweight device clipped to the player's shirt * Single push button input * Bluetooth Low Energy (BLE) communication * Rechargeable battery (Li-Po) * USB charging circuit * RGB LED status indicator: * Gr...

Hi I will share the details with the shortlisted candidates. thanks

I’m building a single-phase grid-tie solar inverter around the STM32F103 and need both the hardware completed and the firmware written. The control board must handle MPPT, keep perfect grid synchronization, and expose real-time data for remote monitoring. Firmware requirements • Implement a reliable MPPT algorithm suited to PV strings. • Keep the inverter phase-locked to the utility, injecting power with a clean sinusoid and rapid anti-islanding response. • Expose operating metrics (voltage, current, power, temperature, fault states) through Modbus, CAN bus, and Ethernet. Hardware requirements • Schematic and PCB layout for the STM32F103 control board, opto-isolated gate-drive interfaces, sensing circuitry, surge protection, and communication ports. ...