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Electronics is an exciting field of engineering that involves circuitry, components, programming, and more. By hiring an Electronics Engineer, businesses and individuals have the power to design and prototype a wide range of gadgets to solve difficult problems. From computers and peripherals to vehicles, Robots and healthcare equipment, electronics experts can create revolutionary products for nearly any industry.
Simply put, an Electronics Engineer can bring life to an idea. With their help, everyday functions are streamlined making life easier for everyone. Accessing remote control equipment just became much easier with Electronics Engineering. Anything from home security cameras to advanced autonomous parking systems are now achievable.
Here’s some projects our expert Electronics Engineers made real:
Are you interested in creating something special? Consider hiring an Electronics Engineer on Freelancer.com to design a new innovative product! With their expertise in automation systems and other advanced technologies, they can bring your product to life faster than ever before while making sure it’s efficient and safe. So why wait? Post your project today!
From 59,260 reviews, clients rate our Electronics Engineers 4.9 out of 5 stars.Electronics is an exciting field of engineering that involves circuitry, components, programming, and more. By hiring an Electronics Engineer, businesses and individuals have the power to design and prototype a wide range of gadgets to solve difficult problems. From computers and peripherals to vehicles, Robots and healthcare equipment, electronics experts can create revolutionary products for nearly any industry.
Simply put, an Electronics Engineer can bring life to an idea. With their help, everyday functions are streamlined making life easier for everyone. Accessing remote control equipment just became much easier with Electronics Engineering. Anything from home security cameras to advanced autonomous parking systems are now achievable.
Here’s some projects our expert Electronics Engineers made real:
Are you interested in creating something special? Consider hiring an Electronics Engineer on Freelancer.com to design a new innovative product! With their expertise in automation systems and other advanced technologies, they can bring your product to life faster than ever before while making sure it’s efficient and safe. So why wait? Post your project today!
From 59,260 reviews, clients rate our Electronics Engineers 4.9 out of 5 stars.I need assistance with connecting my Technics SL1200MK7 turntable to a power amplifier and then to speakers. Requirements: - Connect turntable to power amplifier - Connect power amplifier to speakers Ideal Skills and Experience: - Experience with Technics SL1200MK7 - Knowledge of power amplifier connections - Audio equipment setup expertise
I’m setting up a new mobile-phone venture and I want a seasoned PCB designer to join me at the ground floor. I will fund the hardware development; what I need from you is the end-to-end PCB engineering that turns our handset concept into a manufacturable reality. Scope of work • Architect and lay out a multilayer board that fits a slim smartphone form factor. • Integrate the core silicon (application processor, memory, RF front-end), battery interface and power-management circuitry, plus all critical sensor breakouts. • Optimise signal integrity, thermal behaviour and EMI/EMC so the design can clear FCC/CE without major rework. • Produce complete deliverables—schematics, layered Gerber/ODB++ files, annotated BOM, pick-and-place data and a brief DFM ...
I'm seeking an expert in firmware and hardware integration, specifically for radio communication. This project involves developing both firmware and the necessary hardware components. Key Requirement: - Custom Protocol: The firmware must support a custom communication protocol tailored to our specific needs. Ideal Skills and Experience: - Proficiency in radio communication systems - Experience with custom protocol development - Strong background in microcontrollers and circuit design - Knowledge of data acquisition and control systems is a plus Please share your relevant experience and approach to this project.
We are seeking experienced Hardware Development Engineers with a minimum of 5 years of experience to lead the end-to-end development of a consumer-grade embedded IoT system. This is a collaborative project requiring close coordination between hardware and firmware teams to deliver a production-ready industrial IoT device with advanced wireless capabilities and sensor integration. HARDWARE DEVELOPMENT ENGINEER Key Responsibilities: - System-level hardware architecture and design freeze - Component selection (MCU/SoC, power ICs, storage interfaces, wireless modules) - Schematic design and PCB layout (high-speed + mixed-signal, EMI-aware) - Power integrity, grounding, shielding, and DFM/DFA compliance - Prototype fabrication support and manufacturer Q&A - Hardware bring-up support and va...
I need a clear, component-level wiring diagram that shows exactly how to build a compact rechargeable lamp. The diagram must be laid out as a classic wiring diagram (not a high-level schematic) so wire colours, connection points and conductor paths are unambiguous for a technician to follow. Components used to fit in a 100*100*20mm compartment Project context The lamp will run from an internal battery pack, drive a small cluster of LED lights, and recharge via a dedicated charging circuit. A capacitive touch sensor will act as the on/off. Everything should fit on a single board with any external leads clearly marked. Essential inclusions • Battery pack : to have 7-8hrs backup for the LED mentioned below • LED : 3 V, 33 mA LED filaments • Charging circuit (USB-C prefe...
500mA output injected into the power line This is a workspace for: I have a Teensy 4.1 producing a 0–3.3 V, 80 kHz square wave that must be pushed onto a power line as a clean ±3 V logic-level signal. The link sits inside an industrial-automation cabinet that is notoriously high in conducted and radiated noise, so frequency stability, pristine edges, tight duty-cycle fidelity, and minimal added jitter are non-negotiable. The line is already carrying both analogue sensing and digital control, so I need a compact driver stage that: • Takes the Teensy’s 3.3 V CMOS output. • Runs from the existing 12 V rail. • Delivers a symmetrical ±3 V square wave at 80 kHz with crisp transitions—no ringing or overshoot. • Preserves the original dut...
*AI-Driven Digital Twin Framework for Integration Analysis of Solar-Powered Electric Vehicle Charging Stations in Smart Distribution Networks* AI-Driven Digital Twin Framework for Solar-Powered EV Charging Stations in Smart Distribution Networks Project Category Artificial Intelligence Digital Twin Power Systems Smart Grid Electric Vehicle Charging Renewable Energy Data Analytics Machine Learning IoT Energy Management System Project Overview Designed and developed an AI-driven Digital Twin platform for a real-time smart distribution network capable of integrating Solar PV generation, Electric Vehicle Charging Stations (EVCS), Battery Energy Storage Systems (BESS), and campus electrical loads. The framework creates a virtual replica of an electrical distribution network that continuously...
Job Title: MuJoCo Task Developer for LLM Reinforcement Learning Dataset We are looking for an experienced MuJoCo/Robotics Engineer to create high-quality MuJoCo benchmark tasks for LLM reinforcement learning. Responsibilities: Design MuJoCo tasks (MJCF/XML, morphology, controllers, or debugging tasks) Write clear task instructions () Implement deterministic automatic graders () Create reference solutions and baseline solutions Ensure tasks are reproducible, verifiable, and follow the provided guidelines Requirements: Strong experience with MuJoCo and MJCF Python programming skills Knowledge of robotics simulation and kinematics/dynamics Experience designing evaluation scripts or automated testing Ability to create deterministic, code-verifiable scoring criteria Nice to Have: Experie...
Project Golden Eagle couples solar, a lithium-ion battery energy storage system and gas-fired reciprocating engines into one behind-the-meter plant that will offset our facility’s demand charges and provide resilient back-up power. The preliminary economic model is complete; what remains is a construction-ready electrical design that folds the three resources into a single, code-compliant package. The generation mix is fixed—solar arrays, BESS and gas engines—as confirmed in our internal feasibility study. I already have detailed equipment specifications, protection philosophies and utility interconnection requirements; these must be reflected verbatim in the drawings and calculations you prepare. Where gaps appear, NEC 2023, IEEE 1547 and local AHJ amendments should gui...
Title: Seeking Procurement Agent / Sourcing Specialist in Shenzhen for Custom LTE Surveillance Camera ManufacturingDescription: I am looking for an experienced Procurement Agent or Sourcing Specialist based in Shenzhen to assist in finding a reliable factory that can manufacture a high-quality, customized LTE surveillance camera. The camera will be designed specifically for cargo monitoring and must meet the following core specifications:Core SpecificationsFeatureRequired SpecificationImage Resolution1080p (1920 x 1080)Field of ViewWide-angle, approximately 180°Image CaptureOn-demand, pre-programmed time intervals, or event-driven (motion, door open/close)Power Source100% solar-poweredBattery LifeCapable of operating for up to 100 days while idlingEnvironmentalIP67 rated for dust/wat...
**Job Title:** Motion Control Engineer / Automation Consultant – Pipe Bending Machine We are seeking an experienced Motion Control Engineer or Automation Consultant to lead the automation integration of a new pipe bending machine currently in the final stages of fabrication. The successful candidate will be responsible for designing and implementing the motion control system, including the selection and integration of servo drives, proportional valves, sensors, and human–machine interface (HMI) components. **Key Responsibilities** * Design and integrate motion control hardware and feedback systems, including encoders and transducers. * Develop control strategies for precise, repeatable pipe bending operations. * Collaborate with internal teams responsible for 3D mechanical d...
I need a compact Bluetooth mouse engineered from the ground up with four physical buttons, a smooth scroll wheel, and a USB-C port for both charging and optional wired use. Beyond the standard right- and left-click, the two extra buttons have to ship pre-mapped to volume control (up / down or mute / un-mute) yet remain fully re-programmable through companion software or firmware so users can assign any shortcut they like later on. The build should feel as solid as today’s premium portable mice, keep latency low, and work cross-platform without separate drivers. I’m open to Nordic, Cypress, or similar Bluetooth LE chipsets as long as you hit excellent battery life and achieve seamless reconnection after wake-up. USB-C power management and over-the-air firmware update capability...
I need an engineer who can take me from concept to working prototype on a precision electromagnetic sensing instrument aimed squarely at industrial non-destructive testing and material verification. The core job is to design a sensor that reads electrical conductivity with high accuracy on metallic parts, while also giving me phase-shift and signal-amplitude data that I can use for deeper analysis. My ideal workflow looks like this: we agree on the excitation frequency range, coil geometry, and signal-conditioning chain; you model and build the probe; you develop the embedded firmware and a simple desktop interface so I can visualise raw and processed readings in real time. Throughout, please keep calibration and repeatability in mind—stable baselines and traceable test procedures a...
I need a complete PCB design built around the ESP32-C3 and five onboard power MOSFETs. The board will sit inside a medium-sized, handheld consumer-electronics enclosure and run from a regulated mains-derived supply, so careful attention to isolation, creepage, and thermal paths is essential. The circuit will drive five independent high-side or low-side loads (I can adapt to whichever topology is simpler on your end) while giving the ESP32-C3 solid Wi-Fi/BLE antenna performance. GPIO pin mapping, level-shifting, protection, and a clean 3 V3 rail must all be worked into the schematic. Please route with sensible trace widths, keep EMI in check, and leave me a little proto area for future tweaks if space permits. Deliverables • Schematic and well-annotated PCB layout • Gerber, ...
I am looking for an experienced PCB layout engineer to design and route a compact, dual-layer PCB for an IoT smart switch module. The design must fit inside a very restricted space (approximately 55mm x 45mm) to fit behind standard wall switchboards. Key aspects of the design: - Microcontroller: ESP32-WROOM-32 series (Wi-Fi + BLE). - Power: On-board AC-to-DC isolated converter (230V AC to 5V DC) and a 3.3V DC-DC buck converter. - Relays: 1x onboard relay switching AC mains load. - Inputs: Single-channel external switch sensing circuit. - Safety & Protection: Fuse and surge protection (MOV), with strict clearance/creepage rules (minimum 2.5mm spacing between high-voltage AC mains and low-voltage DC logic traces). - Tools: KiCad preferred. Deliverables: - Schematic review and optimizat...
Our ESP32-based prototype uses the MSME INNP441 digital mic, and during live audio streaming it introduces jitter and a screeching interference noise—even though the board sits in a quiet lab. I have already updated the firmware, swapped in fresh hardware, and tweaked every software register I could reach, yet the distortion persists. I’m looking for someone who can dive into the existing C/C++ (Arduino-style) code, analyse the I²S configuration and clocking, and track down whatever is corrupting the audio path. If a schematic or logic-analyser trace is helpful, I can supply both. Any fix should leave us with clean, stable voice capture that we can push straight to our streaming stack. Because this is part of our in-house tech, I will provide the full repository only a...
Project Title : Custom 4G/5G & Ethernet WAN Router with Physical Internet Pause Switch Project Overview I am looking for an experienced embedded hardware engineer (or team) to design and build a custom networking device. The device should be capable of receiving internet from either a physical 4G/5G SIM card or an Ethernet WAN input and provide internet through a dedicated Ethernet LAN output. The primary feature is a physical hardware switch that instantly pauses and resumes internet connectivity to the connected LAN device while keeping the Ethernet link active. Functional Requirements 1. Internet Sources The device must support two independent internet sources: A. Cellular Physical Nano SIM card slot. Support 4G LTE and 5G NR. Compatible with as many global 4G and 5G frequency ba...
Hardware Engineer Wanted: Compact Biometric Wearable Prototype We are seeking a hardware engineer to design the electronics for a lightweight, clip-on attachment that tracks head posture, motion, and heart rate metrics. Project Overview You will design the complete electronic architecture and schematics for a compact, battery-powered wearable prototype. Key Features: Sensors: Integration of an EOG and IOG Connectivity: Bluetooth Low Energy (BLE) for data transmission. Power: Low-power optimization with a small LiPo battery and a magnetic charging setup. Form Factor: High-density, tight-space layout (experience with small or rigid-flex PCBs is a major plus). What You’ll Do Select optimal components based on power and size constraints. Design the analog front-end for clean sens...
I’m upgrading a building-management installation and need a complete PLC-based electrical panel design dedicated to the HVAC side. The controller will run our chiller plant and the MCC that drives all circulation and condenser pumps, so the drawings must reflect real-world motor loads, interlocks, and safety devices rather than generic templates. Here’s what I’m after: • A full set of single-line and wiring diagrams, clearly showing every I/O point needed for temperature, flow and pressure feedback, as well as the hard-wired links to the pump starters in the MCC. • Panel layout and bill of materials, sized to house the PLC, power supplies, contactors, overloads and field terminals without overcrowding. • I/O list in spreadsheet form that I can import...
I am building a hands-on trainer kit series and the first board in the lineup is an ESP8266-based IoT controller. I already know the core feature set I need—reliable sensor integration, solid wireless communication and on-board data logging—so your task is to translate those requirements into a clean, production-ready PCB. Scope of work • Schematic capture and PCB layout for the ESP8266 module (ESP-12 or similar) with break-outs for common digital/analog sensors, UART/SPI/I²C headers and a micro-SD slot for logging. • Keep-alive circuitry, 3 V / 5 V level shifting where needed, and a regulated power stage that accepts both USB-C and external DC input. • Generation of manufacturing outputs: Gerber, drill files, pick-and-place, and full BOM with part nu...
My schematic for an ESP32-based drone flight controller is complete; what I need now is a skilled PCB designer who can turn that schematic into a reliable, production-ready board. You’ll take the finished circuit and: • Develop the full board layout, choosing an efficient layer stack that keeps weight and interference low while remaining manufacturable. • Generate all fabrication data—Gerbers, drill files, pick-and-place, STEP/3D, and a clean, component-matched BOM. • Run thorough DRC/DFM checks so the design sails through board house review on the first pass. • Document any design decisions or trade-offs so I can iterate or scale later without guesswork. I’m supplying the original schematic, netlist, footprints, and datasheets. Tool choice is ...
I’m building a compact pan-tilt head that can be driven remotely with a small camera module and a laser pointer ride on top of it. The primary goal is reliable pan-tilt motion and foundation for future development. Here’s what I need from you: • A motorized pan and tilt mechanism sized for a lightweight camera board and laser diode. • Control electronics (Arduino, Raspberry Pi, or similar—whatever you prefer) with firmware that exposes over serial communication. • A simple desktop or mobile interface so I can jog the rig manually, start/stop tracking, and toggle the laser. • Assembly instructions, wiring diagrams, and commented source code so I can reproduce the build. Acceptance test: demonstrate adequate homing and motion control. If you h...
Please note that below task is only available to local Americans and long-term US residents. I need help tracking down reliable, fairly-priced, second-hand test and measurement instruments here in the United States. The priority units are signal generators, spectrum & network analyzers, EMI test receivers, radio communication testers and phase-noise analyzers from both Rohde & Schwarz and Keysight. Your task is to compile a vetted directory that includes: • Company name and brief background • Physical address (or warehouse location) • Direct contact person, phone, and email • Notes on current inventory, typical grading standards, and any return or warranty terms you uncover • For suppliers without an official website, please include an on-site/company ent...
Hi I will share the details with the shortlisted candidates. Thanks
I need an experienced Fusion 360 user to correct errors in my electrical design. Requirements: - Fix both schematic and PCB layout issues - Resolve package issues, specifically incorrect footprints Ideal Skills and Experience: - Proficiency in Fusion 360 electrical design - Experience with schematics and PCB layouts - Strong knowledge of electrical components and footprints - Attention to detail and problem-solving skills
I need a set of clean, reusable data-sheet templates covering the electrical equipment we deploy across Indian oil-and-gas facilities dedicated to power distribution. Each sheet must be ready for direct issue to vendors and for internal approval workflows, so accuracy and a uniform look-and-feel are essential. Scope • Identify the typical equipment in this environment (e.g., transformers, switchgear, motors, UPS, breakers) and capture every rating, protection detail, construction feature and test requirement normally requested during procurement. • Build editable templates in Excel or Word—whichever best preserves tables and drop-downs—so my team can populate or tweak them quickly for future projects. • Cross-reference every field with the latest applicabl...
I have a circuit that now needs to move from the schematic stage to a production-ready printed circuit board. I will share the complete schematic, component list, and any mechanical constraints as soon as the project starts. Your task is to turn that information into a clean, manufacturable PCB layout and supply the standard fabrication files. Here is what I need from you: • Translate my schematic into a well-routed PCB that fits within the mechanical outline I provide. • Follow common DFM/DFT guidelines so the board can be produced by mainstream fabs without extra fees. • Deliver Gerber, drill, and pick-and-place files along with the source file from your preferred tool (Altium, KiCad, or Eagle are all fine). • Include a 3D step model so I can run a final fit c...
Hi I will share the details with the shortlisted candidates. Thanks
I need all of my encoders, decoders and data switches removed from their current rack, cleanly re-cabled and commissioned in a brand-new rack. The gear supports a live broadcasting workflow, so signal integrity and minimal downtime are critical throughout the move. You can choose whichever rack brand or model you feel best suits professional broadcast environments; I have no fixed preference and am happy to hear suggestions if a particular frame, power distribution unit or cable-management accessory will make servicing easier down the line. Scope of work • Create an inventory of every encoder, decoder and switch, noting current port assignments, power requirements and firmware versions. • Label and disconnect all cabling methodically, documenting each step so the system can...
I need a full vehicle diagnostic service for my car. The diagnostic should cover the following systems: - Engine and transmission - Electrical systems The service should be thorough and provide a detailed report on the condition of these systems. Ideal candidates should have experience with automotive diagnostics and be able to interpret diagnostic codes and provide clear, comprehensive reports. Please include any relevant certifications and tools you possess.
I need a compact FR4 board that accepts a universal 85 – 265 VAC input and continuously supplies two regulated rails: 5 V DC and 12 V DC (each capable of up to 1 A). The 12 V line must terminate in generously sized through-hole pads so I can solder external wires with ease; the 5 V rail will power onboard logic. Lighting is handled by five SM1206-395-IL UV LEDs from Bivar. Three sit on the main board, while the other two reside on small right-angle daughter PCBs soldered perpendicular to the base board. This is for an industrial environment, so please favour robust component choices, but I do not require formal UL or CE certification. Every part should be readily sourced from major Indian distributors such as Mouser India, Element14 India, or local vendors like Robu and MD Componen...
I am building a board that needs a compact mixed-signal section dedicated to high-accuracy data conversion. The job is to design the entire ADC/DAC front-end, marrying the sensitive analog path with the supporting digital logic so the output is ready to drop straight onto my main PCB. What I need from you • A complete schematic showing the analog input stage, the chosen ADC and DAC devices, reference circuitry, clocking, and the glue logic that links everything to an MCU or FPGA header. • Component selection with justification, balancing performance, availability, and cost. • Simulations that verify noise, linearity, and timing (SPICE, LTspice, or similar). • A clean, well-annotated PCB layout file (Altium, KiCad, or Eagle—your choice, just tell me up fro...
Design with ONSHAPE only a Posture Reminder Sensor (PRS) device that can be attached to the user’s upper back A USB-C charging dock. The PRS device should include a rechargeable battery and draft electronics inside. The charging dock should securely hold the PRS device for charging when not in use. The PRS device should be designed to fit and align with the charging dock. The top and bottom enclosures must fit together cleanly and allow space for the battery and electronics holder. Make use of the document I attached to it
We are seeking an experienced RF Engineer with strong expertise in Bluetooth Low Energy (BLE) antenna design, RF matching networks, and wireless product validation. The ideal candidate will diagnose performance issues, redesign the antenna and matching network as needed, and validate the final design to ensure robust BLE performance. Project Scope - Evaluate the current BLE RF and antenna design. - Diagnose issues affecting BLE range, RSSI, connection reliability, and overall RF performance. - Analyze the PCB layout, antenna placement, ground plane, enclosure effects, and surrounding components. - Redesign or optimize the BLE antenna and matching network to improve performance. - Perform impedance matching using a VNA and optimize the antenna for the target operating environment. - Valid...
Project Title Design a Logic Gate Based Non-Programmable Sensor-Actuator PCB — Prototype Development Project Overview I need a custom electronics board designed and prototyped around a combination of Logic Gates, built for a non-programmable, hardware-only sensor-to-actuator decision system (no microcontroller/firmware involved). The board should be robust, classroom/hobbyist-safe, and ready for small-batch prototyping. Concept The core idea is a hardware logic control board where inputs (sensors which uses only digital signal like IR sensor, PIR sensor, LDR sensor etc.) and outputs (actuators/dc motors, LED and buzzer) are combined using any gate logic — with no coding or programming required. Detailed Requirements 1. Power Requirements Power input via a 9V battery....
I need a conveyor system designed for transporting small packages. The system should include: - Adjustable speed - Automated sorting - Incline/decline capability Ideal Skills and Experience: - Experience in designing conveyor systems - Knowledge of material handling and automation - Proficiency in engineering design software - Strong problem-solving skills Please provide examples of similar projects.
I need help sourcing electronic components from suppliers outside of India. The components are for industrial use, and I will be ordering in small batches of 1-100 units regularly. Requirements: - Identify suppliers with the cheapest rates - Ensure suppliers have stock availability - Provide a list of components and their prices Ideal Skills: - Experience in electronics sourcing - Knowledge of international suppliers - Strong negotiation skills
I have an ESP32 DevKit V1 (CP2102) already wired to a PZEM-004T V3, an ADS1115 16-bit ADC, one SCT-013-010 CT sensor, and three DS18B20 waterproof probes. With this hardware I need working firmware and a simple cloud-hosted dashboard that can: • Detect and log the compressor state (ON/OFF). • Detect, log, and quantify both the indoor fan status(ON/OFF) as well as fan current or speed. • Read room, inlet, and outlet temperatures. • Calculate hourly power consumption (kWh) and total run-time for the compressor and each fan. • Push every reading over Wi-Fi using pure HTTP requests formatted as JSON. On the front end I want a live web dashboard that combines graphs with raw tables so I can flip between trends and exact values. The visuals should update in n...
Requirement: Electronics Hardware Design Consultant (Industrial Instrumentation) We are looking for an experienced Electronics Hardware Design Consultant to support our D&D department in developing and upgrading industrial instrumentation products such as Ultrasonic Level Transmitters, Radar Level Transmitters, Capacitive Transmitters, and various Level Switches. Scope of Work: Electronic circuit design and calculations Analog and digital hardware development 4-20 mA and HART communication circuits Power supply and protection circuit design EMC/EMI-compliant hardware design Schematic and PCB design reviews Design optimization for reliability and manufacturability Support for IEC 61000 and EMC certification requirements Upgrading existing products with advanced features and improved pe...
I run an analog broadcasting facility and need an experienced radio engineer to work directly on our transmitter and tower-mounted antenna system. Your focus will be the RF chain—from the exciter right through to the radiating elements—making sure we’re operating at peak efficiency and fully within our licensed technical limits. You’ll have access to current schematics, field strength and SWR readings, plus any service manuals we hold. Using your own measurement gear (spectrum analyser, dummy load, vector VSWR meter, etc.) or equivalent tools on-site, I’d like you to: • Diagnose and resolve any signal quality or coverage issues linked to the transmitter or antenna • Retune, align and verify power output and reflected power figures • Docu...
I need help with a ladder lab exercise on PLC programming. The exercise involves using Allen-Bradley RSLogix 5000. Ideal Skills and Experience: - Proficiency in PLC programming, especially with Allen-Bradley - Strong understanding of RSLogix 5000 - Experience with ladder logic design and troubleshooting - Background in automation or control systems Please provide a brief overview of your experience with similar tasks.
I need a 3D CAD designer to create a compact wearable electronics enclosure for a smart posture trainer device. The enclosure will be used for 3D printing, so the design must be practical, clean, and print-ready. Reference design: I want a smooth rounded capsule/pebble-shaped device similar to the attached reference images. Approximate outer device size: 65 mm × 45 mm × 22 mm Internal components: The enclosure needs space for: • PCB / component assembly • Battery • Vibration motor • IMU sensor • USB-C charging port • LED indicator • Side button / switch Design requirements: • Smooth premium rounded body • Matte white outer look • Wellbeing logo area on the front • Small LED indicator on the top/front side • USB-C ...
I want to create a branded control board that keeps the familiar Arduino UNO R3 footprint yet swaps the ATmega328P for an ESP32. The finished board must: • expose the usual analog inputs, PWM outputs, serial ports and full digital I/O • break-out every pin through sturdy screw terminals instead of header pins • carry an on-board battery cradle for two 18650 cells (3.7 V each) and an integrated 2-cell BMS • arrive pre-flashed so it shows up in the Arduino IDE exactly like a normal UNO-style target Because the unit will be wall-mounted, an ABS enclosure that matches the board outline, standoffs and connector layout is part of the job. I need mechanical files (STEP/STL) alongside the electronics deliverables. Deliverables 1. Schematic, PCB layout and Gerber/ODB files 2...
I’m building the low-level firmware for an ARM Cortex-A microcontroller and need help closing the remaining gaps in startup code, peripheral configuration, and board-level testing. The toolchain is already in place (GCC, OpenOCD, and a J-Link probe), and the hardware boots, but several peripherals still need clean, maintainable drivers and the overall initialization sequence must be tightened for reliable production use. You’ll dive into: • Writing or refactoring C/C++ startup routines, linker scripts, and BSP code specific to this Cortex-A device • Bringing up UART, SPI, GPIO, and a high-speed interface that feeds data to an upstream processor • Tracing hard faults with JTAG/SWD and delivering concise root-cause notes so I can reproduce your findings &bul...
I hold 14 years full-stack PCB industry experience covering quality, MI engineering, overseas sales and 5 years formal procurement experience in a German electronics company, which makes me a one-stop solution for your China supplier management: 1,Technical capability: 3 years MI/CAM engineering background allows me to independently audit Gerber files, complete DFM check, avoid costly production errors before order release, greatly reduce rework cost and communication lag between your US office and Chinese factories. Quality control foundation: 1 year PCB quality experience with IPC standards enables me to supervise factory production quality, handle batch defects and push continuous quality improvement without extra QC manpower. 2, Market & customer insight: 5 years PCB overseas sal...
I have a multi-lane PCIe board laid out in KiCad and I want a sharp set of eyes on its signal integrity before we order production units. The schematic and layout are finished, so the assignment is strictly a design review with testing; no new routing or simulation work is required. The focus is signal integrity. I’m particularly worried about EMI, crosstalk between adjacent differential pairs, and any impedance-matching missteps that could cause reflections or eye-diagram collapse. You’ll examine trace geometry, reference plane continuity, via transitions, connector breakouts and length matching, then validate your findings. Deliverables • An annotated copy of the KiCad project highlighting every issue found and recommended fixes. • A concise test report (sco...
My thesis dives into power systems and I need a seasoned electrical engineer who can shoulder the simulation side in MATLAB/Simulink while guiding me through every decision so I understand–and can defend–the work. Here’s what I have in mind: you will build the complete simulation models, run the scenarios we agree on, extract the results, and walk me through the interpretation until I am comfortable explaining the methodology and findings. All Simulink files, custom scripts, and a concise technical write-up of the procedure should be shared so I can slot them straight into my dissertation. I am starting from scratch, so the collaboration will likely cover brainstorming the system configuration, choosing realistic parameters, validating the model, fine-tuning for con...
I need a qualified technician to carry out routine maintenance on my Split AC. The job covers a full cleaning of both the indoor and outdoor units, including filters, coils, drainage line, and fan blades, followed by a quick performance check to be sure the system cools evenly and operates quietly. Deliverables: • Thorough cleaning of indoor unit • Thorough cleaning of outdoor compressor unit • Inspection of refrigerant pressure, electrical connections, and thermostat calibration • Brief report on any parts that may soon require replacement I’ll make the area around the units accessible; you only need to bring the necessary tools, cleaning agents, and a portable vacuum. Please let me know your availability and how long the service usually takes so we c...
I'm looking for a skilled product designer or manufacturer to create a custom locking case cover for JLab Jbud Mini earbuds. Requirements: - Material: Silicone - Locking Mechanism: Sliding lock - Additional Features: - Water resistance - Shock absorption - LED indicator for charging Ideal skills and experience: - Experience with silicone products - Knowledge of locking mechanisms - Expertise in waterproof and shock-resistant design - Proficiency in integrating LED indicators into cases Please provide samples of previous work and a detailed proposal.
1 Project overview We are developing a medical neurostimulation device intended for therapeutic applications, including tinnitus treatment. The system consists of: • A central unit based on a Toradex Verdin 8M Mini SOM • Up to five body-mounted emitters • Custom electronics responsible for signal generation, power control, safety monitoring and communication with the Toradex platform The project is already well defined at system level, and hardware development can start immediately. ________________________________________ 2 Scope of Work Design a custom electronics board capable of controlling up to five emitters simultaneously. Each emitter includes: 2.1 Inductive Channel • Resonant coil • Approximately 35 kHz sinusoidal carrier • Current-controlled operat...
KPMG and Uber data show AI coding costs spiralling. Freelancer data shows what hiring a fixed-price developer actually costs instead.
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