Elektronik Jobs

I need the grid-profile on an APsystems EZHI inverter adjusted so it complies with my utility’s requirements. The job centres on changing two parameters only—voltage and frequency settings—through the APsystems EMA Manager software. I do not have any level of access to the EMA portal, so you will have to bring valid installer credentials and the latest EMA Manager tool to complete the work remotely. To make the hand-off clear, please: • Connect to the inverter through EMA Manager with your installer login. • Set the requested voltage and frequency limits; power limits can stay as factory defaults unless you notice a conflict and we discuss it first. • Provide a quick screen-capture or log extract that shows the new profile has been written and accepte...

I will be sending my colleague Frank to Shenzhen shortly and need someone who already lives in the city to act as his on-the-ground sourcing partner. Your main job is to walk him through the electronics hubs—specifically Huaqiangbei, SEG Electronics Market, and Shenzhen North Huaqiang Market—and help secure DDR5 5600 MHz ECC RDIMM memory modules at the absolute lowest price. What I expect from you • You speak both English and German well enough to translate negotiations and small talk on the spot. • You are physically based in Shenzhen and know the layout of the major component markets. • You can identify stalls or wholesalers that carry Chinese brands such as CXMT or other local makers, yet you are just as comfortable checking prices for Samsung, SK hynix...

I'm seeking an experienced RF circuit designer to develop an RF amplifier. The amplifier should operate in the high-frequency range of 3 GHz to 30 GHz, with a medium output power level between 1W and 10W. Ideal Skills and Experience: - Expertise in RF circuit design - Proficiency in working with high-frequency components - Experience with medium power RF amplifiers - Knowledge of stability and linearity in RF circuits - Familiarity with simulation tools (e.g., ADS, HFSS) Please provide relevant work samples and a brief project plan.

I’m upgrading a machine line that relies on two controller families—Fatek (ladder via WinProladder) and CODESYS V3. Some routines are already in place, but they need tightening, better commenting, and a few added safety interlocks. Other sequences—especially for new actuators being installed next month—will have to be built from scratch. The system is composed of one motor and two pumps—one for filling and the other for emptying the tank. A ventilator starts with the motor and operates during its run and off cycles. The pump must fill the tank with product every 2 hours. You’ll start by analysing the existing projects I’ll provide (.prj and .cds files, I/O list, functional spec). From there, I need clean, well-commented ladder or structured text ...

Bid With Your related past work please (Any Seller) I am working on a prototype and I want to build a custom 16-channel EEG board by combining the OpenBCI Cyton and Daisy designs into one single PCB. Designs Daisy board: | Designs Technical Requirements: ADC: 2x ADS1299IPAG (daisy-chained via SPI). They must share the same external clock for perfect synchronization. MCU: Replace the old RFD22301 with an ESP32 (for WiFi/BLE). Strict isolation of the ESP32's RF noise from the analog front-end is crucial (low-noise layout/shielding). Sampling Rate: Target is 250 Hz per channel, but the SPI timing, ESP32 buffering, and wireless data transmission must be robust enough to support up to 500 Hz or 1000 Hz across all 16 channels. Storage: Replace ST-TF-003A with MSD-3-A (MicroSD slot). Powe...

I’m developing a signal-processing module and need a purpose-built power inverter circuit to drive it reliably from a 12 V DC source. The job centres on circuit design; PCB work can follow later once the schematic is locked down. Here’s what I’m looking for: • A complete schematic for a high-efficiency DC-to-AC inverter that delivers clean, low-ripple rails suitable for sensitive analogue and mixed-signal stages. • Component selection with readily available parts and clear justification for each choice. • SPICE-level simulations (LTspice, PSpice or similar) showing expected efficiency, output wave-form quality and thermal performance under 25 W continuous load. • A brief design report summarising calculations, key assumptions and any trade-offs ...

I have a Fuji MICREX-SX system built around the NA0P32-C PLC and fitted with an NA0LA-RS5 two-channel RS-485 card. My immediate need is to get the communications side working for data collection, not complex process control. Channel 1 must act as the Modbus-RTU master, polling two existing slave instruments and bringing their values into the PLC. Channel 2 must behave as a Modbus-RTU slave so that a SCADA/HMI station can read mapped holding registers from the PLC. I already wrote most of the ladder code in SX-Programmer, but I would like you to review it, adjust register mapping if something is off, and handle all parameterisation of the RS-485 card. Once the settings are in place, I’ll open a remote session (AnyDesk or TeamViewer) during on-site commissioning so you can verify...

I'm seeking a skilled PLC programmer and data analyst to automate energy management processes using Schneider systems. Key tasks include: - Monitoring energy usage - Controlling energy distribution - Optimizing energy efficiency Ideal candidates should have: - Experience with Schneider PLCs - Strong background in energy management systems - Proficiency in data analysis and automation Please provide relevant work experience in your bids.

My PlayStation 5 is out of warranty and no longer sends a stable picture to the TV— the screen flickers or shows nothing at all. I suspect the HDMI port is the culprit, but I can’t tell whether there’s any obvious physical damage just by looking. I need someone experienced in PS5 hardware repair to remove the faulty HDMI port, install a new one, and verify that 4K video and audio pass through perfectly once the console is reassembled. Please supply the replacement port, carry out clean, lead-free soldering, and return the unit fully tested with all screws and seals correctly refitted. Deliverable: • My PS5 returned with a brand-new HDMI port and confirmed, flawless display output on a standard 4K television.

I need a wrist-worn prototype that continuously samples ambient radiation and instantly warns the wearer whenever levels reach a hazardous threshold. The core goal is real-time safety, so reliability and fast response are critical. Here is what I expect at hand-off: • A fully assembled, battery-powered watch-style unit that can be worn and tested in the field • Firmware and source files that drive the sensor, handle threshold logic, and trigger the alert (sound, vibration, or LED—whichever best fits the space and power envelope) • Complete schematic, PCB layout, and bill of materials so the design can be reproduced • Brief usage guide explaining calibration, normal operation, and how to adjust alarm levels I’m open to your preferred development tools...

# Prototype Brief — Handheld Force-Sensing Probe ## Summary I need a working prototype of a small handheld instrument that measures the contact force applied through a thin rigid probing tip. When the tip is pressed against a surface, the device reads the applied force in real time and signals when a target force is reached. All sensing and electronics stay inside the handle; the tip itself is a slim passive pin. This is a proof-of-concept prototype, not a finished product. Priority is a fast, cheap, working demonstration. ## How it works (concept) - A thin, rigid probing tip is mounted on a shaft. - The shaft is free to slide a tiny amount (roughly 0.1–0.3 mm) inside the handle against a light preload spring. - Pressing the tip transfers axial force to a force sensor housed...

I already have a complete 4 kW solar kit on site and now need a qualified installer to get it up and running on my home. The house has a flat roof, clear of any shading or obstructions, so access and panel layout should be straightforward. What I’m looking for: • Secure mounting of all panels on the flat roof with appropriate racking and weather-proofing. • Electrical wiring from the array to the inverter, combiner box, and main service panel, following local code. • Installation of any required safety disconnects, grounding, and conduit. • System testing, commissioning, and hand-over with performance verification. I’ll supply the panels, inverter, and major balance-of-system parts; you bring the tools, mounting hardware if we’re missing anythi...

This is a hardware development project. I require a fully functional working prototype, not a simulation, research paper, or theoretical design. The final deliverable must demonstrate ultrasonic TOF measurement on small non-ferrous metal components through a working prototype and demonstration video. I need help taking a lab-bench concept for measuring ultrasonic wave velocity and turning it into a rugged, handheld instrument that works reliably on Platinum, Silver, Nickel, and brass samples. The core tasks include designing the full analog front-end (pulser/receiver, low-noise pre-amp, gain control, anti-alias filters), selecting and driving the piezo transducers, and implementing a precise time-of-flight algorithm in an embedded platform. I am open to ARM, DSP, or FPGA solutions as ...

I have a 16-channel relay board that must be driven by an Arduino. Each of the sixteen micro-switch inputs will correspond to one—and only one—relay output. When a switch is pressed the matching relay should energise for a fixed pulse of 2-3 seconds, then drop out automatically; there is no need for the user to alter that timing. Here is what I need from you: • Clean, well-commented Arduino sketch that reads the 16 discrete inputs, debounces the switches, and fires the appropriate relay for the required duration. • Pin-mapping and a simple wiring diagram so I can connect everything without guesswork (I will be using a common 16-relay module that accepts active-LOW signals, but please keep the code flexible enough to invert logic if needed). • Guidance on a...

I want to bring a compact, consumer-friendly utility gadget to market and need an engineer who can take it from idea to production. The core of the device is simple: when triggered it must emit a clear, audible beep, making it useful as a quick-locate or alert tool. Beyond that single function, everything should be engineered for reliability, low power draw. Here’s the scope as I see it: • Electronic and industrial design: refine my concept, choose components, and build a working prototype that delivers the beeping feature consistently. • Connectivity & app: create a lightweight companion app for both Android and iOS (Bluetooth Low Energy is fine) so users can trigger or silence the device from their phone. Or it can be connected through Google Home or Smartlife &...

I need an experienced embedded hardware / PCB engineer to design a production-ready STM32-based main controller PCB for a therapeutic massage/spine bed system. This is a build-to-spec project. I already have a detailed engineering handoff package including system architecture, old PCB references, estimated current budget, pin maps, connector notes, BOM guidance, firmware handoff notes, layout requirements, and test plans. The freelancer’s main responsibility is hardware design and manufacturing outputs: schematic, PCB layout, Gerbers, BOM, assembly files, and firmware-ready hardware documentation. Firmware will be developed separately using AI/Codex/Claude from existing working ESP32 firmware. I will burn the firmware once the board is ready. The PCB must support first firmware flash...

I need a PCB hardware designer who already understands fuel-grade gas dispenser electronics and has hands-on experience designing intrinsically safe circuits. The job centres on the control system of the dispenser; the board you create must reliably manage flow-rate control while meeting the strict electrical safety demands of hazardous-area operation. Here’s what I expect from the engagement: • Develop a full schematic that integrates the pump’s sensors, valve drivers and my chosen microcontroller, then add a custom zener-barrier stage to limit energy into the hazardous zone. • Lay out a compact, production-ready PCB (Altium Designer or KiCad are both fine) observing creepage, clearance and thermal guidelines for ATEX/IECEx intrinsic-safety compliance. • P...

I am seeking an expert Embedded Electronics & Product Designer to develop a customized, high-performance "All-in-One Convertible AC/DC Fan" from scratch. We require both the 3D CAD Model (.STEP) and the PCB Gerber Files (RS-274X format) along with the BOM. Key Requirements: 1. 2-in-1 Convertible Mechanical Design: Must function as a stable table fan, but must include a heavy-duty detachable bracket/clamp to securely mount it inside Indian commercial truck cabins and tractors to withstand high vibrations. 2. Battery Compartment: Hollow bottom base optimized perfectly to lock our 12.8V 12Ah LiFePO4 battery pack (Exact dimensions: 140mm L x 70mm W x 75mm H). 3. 100% Copper BLDC Motor: 30W-35W max power, customized for Rated DC 12V operation, D-Cut shaft (8mm dia, 40mm outer len...

We need to solve using Simulink,Simscape,Simscape Fluids (Isothermal Liquid Library)

# FastForm Capacitive Sensor Electrode — PCB Design & Order Brief --- ## Overview I need a **very simple 2-layer PCB** designed and manufactured. Two variants, 5 boards each. **This board has no components, no traces, no schematic, and no routing.** It is four copper rectangles and three vias. Someone competent with KiCad should complete the layout in under an hour. **Important context so the design decisions make sense:** this is not a normal circuit board. It is a **capacitive sensor electrode** that will be immersed in wet concrete. The **solder mask is a functional dielectric layer**, not a cosmetic finish. Several instructions below will look unusual for a PCB — please follow them exactly rather than applying normal PCB conventions. --- ## Deliverables 1. **KiC...

Only For USA ( Texas preferable ) I need an experienced gas-turbine specialist who can log in remotely and walk me through diagnosing and correcting persistent startup problems and noticeable performance drops on one of our units. All symptoms point toward the control system, so I’m looking for someone who knows their way around typical turbine control architectures—think Mark VIe, PLC/SCADA integrations, sequencing logic, sensor calibration, and related HMI trending tools. Here’s what I expect once we begin: • A live remote session to review current alarms, trend data, and logic charts. • Clear, written recommendations (and if possible, revised logic files) that get the machine through a reliable start and restore baseline performance. • A con...

Electrical teknisi Pemasangan intalasi listrik dan repair

I’m developing a compact, sensor-based water leak detector and have already finished the schematic. Now I need a specialist to turn that schematic into a production-ready board layout and clean Gerber package. Scope • Translate my existing schematic into a neat, single- or double-layer PCB that keeps overall dimensions small (the enclosure footprint is 40 mm × 60 mm). • Optimize trace routing for a low-power, battery-operated design; key nets carry no more than 3 V. • Include pads for the water sensor probe, a low-power microcontroller (I’m currently leaning toward an STM32L series but can adapt if you know a better fit), an LED indicator, piezo buzzer, and test pads for programming. • Provide advice on component placement to minimize false po...

​"Hi, I want to place an order for a premium, custom High-Power Mono Amplifier PCB design. This amplifier will be installed on a tractor and needs to be completely rugged, high-performance, and bulletproof. It will mostly drive heavy loads like four 12-inch or two 16-inch woofers, but it must also safely drive small 4-inch speakers without burning them out. ​Please design the PCB combining all the following specifications into a single layout: ​Power & Architecture: High-Power Mono Amplifier using a Dual-Supply (+VCC, GND, -VCC) topology, capable of handling around ±35V to ±45V DC input. ​Output Stage: 4 Power Transistors in total -> 2x 2SC5200 (NPN) and 2x 2SA1943 (PNP) connected in parallel for high current and deep bass. Driver stage should use BD139 and BD140....

I need help bringing a single-layer PCB back to life. At the moment it shows three clear problems: several components have failed, some traces are visibly damaged, and the board refuses to power up consistently. I can supply the original Gerber/layout files, but the schematic is no longer available, so part of the task will involve tracing the nets and inferring the missing circuit details. Your job is to: • Pin-point every faulty component and specify equivalent replacements • Locate and mend any open or shorted traces, or propose jumper fixes where copper is beyond repair • Restore a clean, stable power rail and verify correct voltage levels under load • Give me a concise repair log that includes measurements, photos of each fix, and final functional tests A ...

I’m ready to refresh my retail space in the 48038 area by swapping out a small run of ceiling fixtures—fewer than ten—for daylight-tone LED flat panels. The existing housings are already LED-ready, so this should be a straight replacement: remove the current panels, pop in the new daylight units, test, and tidy up. The work must be done during store off-hours (early morning or after close) so sales aren’t interrupted, and I’d like all debris hauled away once the job is finished. Please bring everything you need for a clean, code-compliant installation and verify each panel is firing at full brightness before you leave. I am specifically looking for a licensed and insured electrician with experience in commercial buildings. If you’ve handled retail ...

The square wave should have an equal mark-to-space ratio, a frequency equal to that of the resonant frequency of the metal bar estimated in Part 1, and an output voltage going from 0 volts to +15 volts. Show full working for calculating component values and draw the circuit diagram. Part 1 is measure the frequency response of one of the metal bars from the Electronics Lab. You will need to use the signal generator (function generator) and oscilloscope to do this. Plot the resulting frequency response across the range 100kHz to 200kHz, and state the resonant frequency of the metal bar.

I need a PCB layout design for a small general lighting application using standard LEDs. The PCB size should be less than 10x10 cm. Ideal skills and experience include: - Proficiency in PCB design software (e.g., Altium Designer, Eagle, or KiCAD) - Experience with LED circuit design - Knowledge of layout techniques for thermal management - Attention to detail and accuracy in design

I have a working concept for an E-Rickshaw diagnostic tool based on an ESP32 DevKit V1, and I now need a production-ready 2-layer PCB. All circuitry must operate from the vehicle’s 48 V line, stepped down via an LM2596. The board will drive an I2C OLED, measure battery voltage, and sense individual lines for the horn, headlight, indicators, brake light, and reverse buzzer. Two probes (A & B) are included for quick continuity tests. Good engineering practice is mandatory: reverse-polarity, fuse, TVS and general input protections must be designed-in. Preferred workflow • KiCad is my first choice; if you feel EasyEDA delivers clear advantages, let me know. • Layout decisions should favour ease of assembly over sheer compactness or extra thermal tricks. • Blueto...

I need a single partner who can handle three related plating jobs and deliver consistent, verifiable quality across each one. The parts involved are aluminium alloy wheels that must receive a bright nickel-chrome finish, mild-steel strip that needs a reliable nickel layer, and copper wires that call for a nickel-plus-tin deposit. The finishes serve all three classic purposes—eye-catching appearance, long-term corrosion resistance, and dependable electrical conductivity—so any method you propose has to balance these outcomes rather than optimise for just one. Because the parts come from different production lines, I will ship lots separately and expect you to return them with the following in place: • Nickel-chrome on the wheels with show-grade brightness, even coverage i...

Please note: Max payment for this is $180. Please do not bid and then negotiate higher price if this is not acceptable. I need a KiCad project that lays out a compact, dual-rail power supply capable of delivering up to 10 A per rail at a maximum of 70 V. The board will sit inside an audio amplifier chassis and will be fed by a toroidal transformer, so low noise and a clean ground scheme are critical. Core requirements • Dual CRC-filtered rails with the 0 V reference converging only at the final capacitor. • A single pair of screw terminals at the board edge for each secondary winding so wiring from the toroid stays short and tidy. • Support for a 5020-class diode bridge (through-hole) plus an alternate footprint that lets me mount the bridge directly to the chassis v...

I need a cable assembly made from our plans for a toilet flush sensor prototype. The assembly involves a combination of flat cable and pre-made cable that we will cut and extend. We have built a couple of basic units but need about a dozen made for field trials. Requirements: we can provide some of the materials - cutting and extending off the shelf IoT sensor cable - Speaker flat extension cables - will need water proofing Ideal Skills and Experience: - Experience with flat cable and general assembly - Proficiency in working with pre-made cables - Attention to detail and precision in cable cutting and extending - water proofing and protecting Looking for a skilled professional to ensure a reliable and functional assembly. Please provide relevant experience in your bids. this may be i...

I already have a KiCad v10.4 design exported to Gerber and will share the schematic, PNG layout images and an initial BOM. What I need now is a careful re-work so the board prints flawlessly on a Voltera V-One. Here is the scope in plain terms: • Import my existing Gerbers, then modify and optimise them for a 2" × 3" FR1 board. • Advise whether the plated holes should be drilled for 1.0 mm or 0.4 mm copper rivets and implement the correct drill table. • Provide full design assistance: refine component selection and placement, reroute traces for cleaner paths, and add or remove small features where that improves manufacturability or current handling. • Keep all components at least 0.4 in from each corner; the corner mounting holes themselves are n...

I'm seeking an experienced Allen-Bradley PLC programmer for a manufacturing process application. The PLC will primarily be used to monitor sensors and alarms. Key Requirements: - Expertise in Allen-Bradley PLCs - Experience in manufacturing process applications - Ability to program PLCs for monitoring sensors and alarms Ideal Skills: - Proficiency in ladder logic and other programming languages - Familiarity with industrial sensors and alarm systems - Strong troubleshooting and problem-solving skills Please include your relevant experience and approach to the project in your bids.

I am looking for an experienced Embedded Hardware Design Engineer to develop a custom production-ready WIFI Board for a proprietary embedded electronic product. The selected engineer will be responsible for reviewing the project requirements, designing the complete schematic, selecting suitable components, creating the WIFI Board layout, and preparing the design for manufacturing. Required Expertise - Embedded hardware design - Mixed-signal WIFI Board design - RF WIFI Board layout - Power supply design - Battery-powered embedded systems - Design for Manufacturing (DFM) - Design for Assembly (DFA) - Schematic capture and WIFI Board layout (KiCad or Altium preferred) Deliverables - Complete schematic - WIFI Board layout - Bill of Materials (BOM) - Gerber files - Manufacturing files - A...

I'm seeking an experienced IoT developer to create a comprehensive platform for the HVAC domain. The platform should enable remote control and monitoring of HVAC systems, as well as providing analytics and performance reports. Key Requirements: - Control Features: Automation, scheduling, and ticket generation via edge AI sensors. - Device Integration: Must integrate with various devices including: - Sensors (e.g., occupancy sensors) - Thermostats - Actuators - IAQ Differential pressure, Ideal Skills and Experience: - Expertise in IoT development and cloud platforms - Proficiency in integrating multiple device types - Strong background in data analytics and performance monitoring - Experience with edge computing and AI Please provide relevant work samples and a detailed approa...

el trabajo consiste en lo siguiente, necesito replicar los resultados de una simulación, la cual pertenece a un trabajo escrito de un tercero para replicar. Esta simulación es necesario el programa Proteus y una base de datos electromiográficos de brazo. Lo que requiero es que se repliquen los resultados de la simulación, de tal forma en que las gráficas sean consecuentes con el proceso realizado en mi trabajo. basicamente es tomar los resultados de otro estudio y amoldarlos al mio para que sean consecuentes con el proceso que desarrollé

Raspberry Pi 5 CCTV RTSP Viewer with GPIO Alarm Trigger We require a developer to create a reliable Raspberry Pi application that automatically displays a live CCTV camera stream and responds to GPIO input triggers. Hardware Raspberry Pi 5 – 8GB Raspberry Pi DAC Pro HDMI-connected display CCTV camera providing an RTSP stream External dry-contact or relay inputs External device controlled by a GPIO output Normal Operation When the Raspberry Pi is powered on, the system must automatically: Boot the Raspberry Pi operating system. Launch the programmed application. Open the supplied CCTV RTSP stream. Display the RTSP stream in full-screen mode. Continue displaying the stream until a GPIO alarm input is activated. The CCTV camera IP address, username, password and RTSP stream setting...

Please note: Max payment for this is $140. Please do not bid and then negotiate higher price if this is not acceptable. I need a KiCad project that lays out a compact, dual-rail power supply capable of delivering up to 10 A per rail at a maximum of 70 V. The board will sit inside an audio amplifier chassis and will be fed by a toroidal transformer, so low noise and a clean ground scheme are critical. Core requirements • Dual CRC-filtered rails with the 0 V reference converging only at the final capacitor. • A single pair of screw terminals at the board edge for each secondary winding so wiring from the toroid stays short and tidy. • Support for a 5020-class diode bridge (through-hole) plus an alternate footprint that lets me mount the bridge directly to the chassis v...

I need a working human-computer interface that can both pick up and broadcast data over Bluetooth at the highest speed the protocol allows. The data flowing through it will be full-rate cellular communications data rather than simple audio or text, so throughput and low latency are critical. On the input side the unit will read Qi energy and Acu-meridian energy via harness-style skin contacts. Those raw sensor signals have to be conditioned, digitised and pushed straight to a tablet over Bluetooth without noticeable lag. In the opposite direction the tablet will be able to transmit control or stimulation patterns back to the interface just as quickly. The job covers hardware design, embedded firmware and a basic demo app for a tablet or computer: • Hardware: schematic, PCB layout an...

Please Note: total amount is $80. Please do not bid if this is not acceptable. I’m putting together a single-rail power supply for sensitive audio gear and need a clean, hum-free output. The brief is straightforward: • Topology: prefer an LDO-based regulator front-ended by a capacitance-multiplier stage (or an equally quiet alternative you can justify). • Input: board-mounted, fully encapsulated transformer—no off-board or open-frame types. • Output: 9 V to 24 V DC, up to 1.5 A continuous. Low ripple and broadband noise filtering are far more important than absolute efficiency. Include transformer snubbers. • Target use: high-end audio equipment, so 50/60 Hz mains-borne noise, switch-spikes and thermal drift must all be kept to a minimum. Deliverable...

I’m building a compact, 4–6-layer mixed-signal board that will sit at the heart of a new sensor-interface product. The board must collect analog data, run it through an on-board DSP, and then push results out over Wi-Fi, Bluetooth, and a cellular link. To keep the unit fully portable, all power must be managed through an integrated battery management system, including charging, protection, and efficient rail generation for the analog, digital, and RF domains. Here’s what I need from you, start to finish: • Complete schematic capture with full part selection, paying special attention to RF front-ends, low-noise sensor inputs, the DSP section, and the battery management circuitry. • A 4–6 layer stack-up that cleanly separates noisy digital, sensitive ana...

I need a reliable partner based in mainland China who knows the second-hand market inside out. Your main mission is to hunt down specific electronic equipment on Goofish, Taobao, and any other credible local platforms whenever my team in France sends you a reference list. Here is what the collaboration looks like: • Search & select: Track down the exact models or nearest equivalents, check condition, seller ratings, and warranty claims where available. • Price negotiation: Use solid negotiation skills to secure the best possible deal without sacrificing quality. • Due diligence: Verify photos, videos, serial numbers, and packaging before any money changes hands. • Consolidation & inspection: Receive the goods at your address, run a quick functional check...

We are looking for an experienced Power Electronics Engineer / PCB Design Engineer to design three high-power solar inverter systems from scratch: On-Grid (Grid-Tie) Inverter Off-Grid Inverter Hybrid Inverter Power rating: 30kW to 50kW — this is industrial-scale, three-phase equipment, not a residential 1-5kW unit. We need engineers who have specifically worked at this power level before. We will start with one inverter type first (to be confirmed after proposals), then move to the others upon successful completion. We have reference datasheets/manuals from existing market products (ASHAPOWER, TruePower, UTL, Waaree, etc.) that will be shared as benchmarks for specs and features. The design itself must be original/from scratch — not a copy of any existing product. Delive...

Title: Full-Stack Embedded Engineer: KiCad Flex-PCB Design & STM32 Firmware for Capacitive Sensing Array Project Objective: We are prototyping a wearable biomechanics system for a para-athlete runner to measure Vertical Impact Peak (VIP) and asymmetry. The hardware architecture utilizes a custom multi-channel capacitive force sensor array (copper pads separated by a cellular polyurethane/Poron dielectric) embedded in a shoe insole/cleat. We need a full-stack embedded systems engineer to design the custom Flexible PCB layout in KiCad and write the bare-metal C/C++ firmware for an STM32 microcontroller to process the sensor data. Key Deliverables & Scope: 1. KiCad Flex-PCB Layout: - Design a custom-shaped, ultra-thin Flexible PCB (Flex-PCB) insole footprint based on provided ...

A pin header on my small production PCB was accidentally soldered one pad off its intended footprint, so the connector now sits in the wrong position. The task is straightforward: cleanly remove the existing header, clear the through-holes without lifting pads or damaging traces, and solder a new (or the same, if salvaged intact) header perfectly aligned to the original footprint. Because this is essentially a solder-joint-related rework, I expect professional tools—hot-air rework station, fine-tip iron, quality flux, microscope inspection—to be used. Once the header is resoldered, please verify continuity on every pin, check for bridging, and confirm the board still powers up. Deliverable: • Returned, fully functional PCB with the pin header accurately seated and all jo...

I am seeking a detailed quotation for the complete hardware design, manufacturing package, and optional firmware bring-up for a custom professional UAV flight controller. The objective is to create an original, production-ready STM32H7 flight controller as the foundation of a modular UAV electronics platform. The design must include: - Standalone flight controller with compatibility for ArduPilot, Betaflight, and INAV. - STM32H7 MCU (STM32H743 preferred) with long-term availability and firmware support. - Integrated sensors: dual 6-axis IMUs, barometer, differential-pressure airspeed sensor, external GPS/compass connections. - Comprehensive flight-control interfaces: USB Type-C, MicroSD card interface, CAN interfaces, UARTs, I²C/SPI interfaces, RC receiver input, safety-switch input,...

I'm seeking an experienced IoT developer to create a comprehensive platform for the HVAC domain. The platform should enable remote control and monitoring of HVAC systems, as well as providing analytics and performance reports. Key Requirements: - Control Features: Automation, scheduling, and ticket generation via edge AI sensors. - Device Integration: Must integrate with various devices including: - Sensors (e.g., occupancy sensors) - Thermostats - Actuators - IAQ Differential pressure, Ideal Skills and Experience: - Expertise in IoT development and cloud platforms - Proficiency in integrating multiple device types - Strong background in data analytics and performance monitoring - Experience with edge computing and AI Please provide relevant work samples and a detailed approa...

Project Title Electronic Speed Controller (ESC) & Flight Controller Hardware Design Engineer for Defence UAV Project Description We are looking for an experienced **Electronics/Embedded Systems Engineer** to design and develop an indigenous **Electronic Speed Controller (ESC)** and **Flight Controller** for our defence UAV platform. This is a long-term project with the possibility of continued collaboration on future UAV systems. # Scope of Work # Electronic Speed Controller (ESC) * Design BLDC ESC (60A–120A, scalable up to 200A) * Schematic design * PCB Layout (KiCad or Altium) * Component selection (MOSFETs, Gate Drivers, Current Sensors, Regulators) * Thermal management * EMI/EMC considerations * Gerber Files * Bill of Materials (BOM) * Manufacturing files * Prototype ...

Wireless Load Cell Monitoring Systems About the Role We're building out a wireless weighing and monitoring solution from the ground up, and we need a seasoned embedded engineer who can own the technical journey — from early prototype to a validated, field-ready product. This role sits at the intersection of hardware and software. You won't just be writing firmware in isolation; you'll be shaping system architecture, wiring up hardware, writing and debugging embedded code, and pushing performance across the board. At a high level, the system pulls weight data from a network of load-cell-equipped sensor nodes spread across multiple locations, processes that data on-device, pushes it over a wireless link, and surfaces it through a cloud-connected platform for remote acce...