Elektronik Jobs

I have completed the schematic for a double-layer PCB that mixes classic passives with several microcontrollers, ICs, and a handful of sensor-based inputs and actuators. Before I commit to board layout, I want a fresh set of expert eyes on every net. What I need from you • Check the wiring of every single component—no floating pins, duplicated nets, or mismatched footprints. • Run signal-integrity analysis on the higher-speed traces coming out of the microcontrollers and ICs. • Perform a power-distribution review, confirming that each rail can deliver the required current and that decoupling is properly placed. Preferred tools are Altium Designer or KiCad, but I can export to most common formats if that helps you work faster. Deliverables 1. An annotated v...

We are developing a proprietary MPPT solar charge controller for manufacture in China. We are looking for an experienced independent engineer to design and validate the Stage 1 prototype. The design Three-phase interleaved synchronous buck, 120° phase offset 40 A charge current, 12/24/48 V battery, PV input up to 100 V Switching frequency 30–50 kHz per phase, to be determined during the project GigaDevice GD32 microcontroller, CR Micro MOSFETs Firmware in C: perturb-and-observe MPPT, two-stage charging, self-calibration, UART telemetry Stage 1 is an instrumented test bed, not a product. No display, no keypad, no communications. The focus is thermal validation, phase current sharing, efficiency and switching behaviour. Deliverables Schematic, PCB files, BOM, commented firmwar...

We need a simple pcb designed. Looking for a battery level indicator board similar to the version found here () but with the specs below. We need it small like this board with reasonably bright LED's. We would like it powered by the battery it is measuring if possible. If not powered by a coin cell or AAA battery. We will need a protoype as well. We can handle that in house if necessary but the ability to provide it is a plus. • Below ~2.8V: all LED’s off • 25%: ~2.8-3.0V: 1 LED on • 50%: ~3.3-3.4V: 2 LED’s on • 75%: ~3.6-3.7V: 3 LED’s on • 100%: ~4.0-4.2V: 4 LED’s on

About SOILO SOILO is an Indian agri-tech company developing portable soil testing devices for agricultural applications. We are expanding our products into Namibia and are looking for a reliable local electronics technician/service partner. What we need We are looking for a technician or small electronics service company based in Namibia, preferably in or around Windhoek, who can provide local repair and warranty support for our devices. Expected work includes: Electronics/device diagnostics PCB troubleshooting Component-level repair where possible Display replacement Battery/charging system replacement ESP32/electronic module troubleshooting RS485/communication troubleshooting Connector/wiring repairs Sensor-related troubleshooting Firmware/basic configuration support where applicabl...

## Electronics Engineer Needed in Namibia – ESP32 IoT Device Debugging I am looking for an **Electronics / Embedded Systems Engineer or experienced Electronics Engineering student based in Namibia** to help troubleshoot and fix an ESP32-based IoT device. ### About the Device The device includes: * ESP32 * Custom PCB * Li-ion/LiPo battery and charging circuit * Power management circuitry * Sensors * TFT/OLED display * RS485 communication * Embedded firmware ### What I Need The selected person will need to **physically inspect and test the device** and identify the root cause of the hardware issue. The work may include: * PCB hardware debugging * Power rail and voltage measurements * Battery/charging circuit troubleshooting * ESP32 power and boot debugging * Sensor and communic...

PCB Design for Industrial Burner Control Unit based on STM32G474RE We are looking for an experienced PCB designer to convert our working and client approved Burner Control Unit prototype into a production ready PCB. The firmware and control logic are complete and validated. We need a reliable, safety focused hardware design with isolated flame ionization sensing, thermocouple input, Modbus RTU communication and relay based valve and ignition control, suitable for an industrial enclosure. Hanyaa Auto Technologies has developed a Burner Control Unit for an industrial plant. The unit manages the complete burner sequence including prepurge, spark ignition, pilot flame proving through ionization sensing, main flame supervision, flame loss detection and post purge. The system has been demonstr...

I already have a clear vision for a Delta-style 3D printer that will be dedicated to manufacturing end-use parts in standard PLA/ABS, but I need an experienced hand to turn the concept into a reliable, repeatable machine. I’m comfortable sourcing components and doing the physical assembly; what I’m really looking for is an expert who can guide me through the critical steps that make or break a Delta build: • Finalizing a complete, proven bill of materials (motors, linear rails, hotend, control board, sensors, power supply, etc.) • Walking me through mechanical assembly best practices and calibration sequences unique to Delta kinematics • Configuring and fine-tuning firmware (Marlin or Klipper—open to your recommendation) for accurate dimensional output...

I’m building an IoT device that pairs an Nvidia Jetson AGX with an Arduino board. The core goal is reliable data logging: environmental sensors will feed the Arduino, and the Jetson will aggregate, time-stamp, and store the readings for later analysis. What I need from you • Set up stable serial UART gpio (or I²C/SPI if preferred) communication between the Arduino and the Jetson AGX. • Write Jetson-side code—Python is fine—to pull incoming packets, validate them, and log the data locally (CSV or SQLite). • Provide an Arduino sketch that collects sensor values and transmits them in the agreed format. • Supply a clear wiring diagram plus a short README so I can replicate the build, flash the firmware, and run the Jetson script at boot. ...

I need an expert in embedded C to manage EEPROM operations (reading, writing, erasing) on an ARM Cortex microcontroller. Key Requirements: - Proficiency in embedded C - Experience with ARM Cortex microcontrollers - Knowledge of EEPROM operations Ideal Skills: - Embedded systems programming - NVM (especially EEPROM) handling - Debugging and optimization for ARM architectures Please include relevant experience in your bids.

I need a single PCB that will sit inside a running vehicle, accept the raw 12 V battery line, regulate it cleanly to the 5 V rail required by a Raspberry Pi 5, and report back four live signals: actual battery voltage, battery load current, tachometer pulses, and oil-sender pressure (via an ADS1115 already on the Pi side). Key electrical functions • Buck or synchronous step-down from 12 V to a rock-solid 5 V at the Pi’s expected current draw, with noise low enough not to disturb the Pi’s camera or Wi-Fi. • High-side voltage divider and current-sense shunt so the Pi can read battery voltage and current on separate ADC channels (ADS1115). • An optocoupler on the tachometer line so the noisy ignition pulses never reach the Pi directly—only clean logic-l...

I’m building a one-off electromechanical rig for a video shoot and need an engineer who can turn my early concept into a fully documented, composite-cased prototype. The system ties together small motors, a microcontroller board, camera modules, a handful of sensors, and a rechargeable battery pack. THE DESIGN HAS ALREADY BEEN MADE BY ANOTHER INDIVIDUAL, you just need to re-create it. I have a video documenting how it was made as reference: Electronics and firmware are already detailed. Here’s what I need from you: • Refined system architecture with final component selection • 3D CAD of all custom parts plus the complete assembly in a common format (STEP preferred) • Structural analysis or reasoning to justify the chosen composite lay-ups/thicknesses ...

Design review of an industrial data-acquisition system — Stage 1 Safe Instrumentación (SFI), Bogotá, Colombia, designs modular data-acquisition hardware for geotechnical and structural instrumentation installed on bridges, hydroelectric plants and pipelines, at sites up to 4,000 m above sea level. SFI has a bench-validated four-board prototype: a main controller with cellular and sub-GHz radio, isolated RS-485 and native USB; two near-identical sensor front ends, each with its own MCU, for inclination and for a long temperature chain of up to 200 sensors on a shared bus; and a carrier board for a purchased vibrating-wire module with its own high-voltage protection chain. Part numbers are released under NDA. SFI has consolidated that work into a detailed design docume...

This project centres on turning a simple two-layer board into a robust controller for an item of industrial equipment. The heart of the design is a PIC microcontroller; no other specialised ICs are planned beyond the usual power-conditioning, crystal, and interface support you would expect around that chip. I will supply the functional block diagram and key electrical constraints. From there I need you to capture the schematic in Altium Designer, select footprints that suit automated assembly, and route a clean 2-layer layout that respects industrial noise and reliability demands (keep-outs near high-current paths, solid ground reference, generous test points). Deliverables • Altium project folder (schematic, PCB, libraries) • Fabrication outputs: Gerbers, drill files, pick...

I want to turn the idea of a small “follow me” car into a working indoor prototype I can use at home. It should quietly track and follow a person around flat floors, weave through doorways or hallways, and stop safely when I stop. Because it is for personal use on smooth indoor surfaces, size and noise matter more to me than ruggedness or high speed. Here’s what I need from you: • Select or design a compact chassis, drive train, and battery that can run at least 30 minutes on a single charge. • Recommend and integrate the sensing stack—camera, ultrasonic, LiDAR, Bluetooth beacon, or any mix you believe best balances accuracy and cost—for reliable human-following and basic obstacle avoidance indoors. • Write the control firmware / software...

The concept and prototype of my electronic device are already proven; I now need the design frozen for manufacturing. That means tightening the schematic, optimising the PCB for production yields, selecting final components, and generating every file a contract manufacturer will ask for—Gerbers, pick-and-place, tested BOM, assembly drawings, and a clear set of test points. A key requirement is graphics design: the device includes a small display and its on-screen interface must look polished, match my brand palette, and load from limited on-board memory without lag. If you are comfortable producing both the electronic documentation and the accompanying UI artwork (or seamlessly coordinating the two), we will be a perfect fit. I will share the current KiCad files, mechanical envelop...

I need a PCB designed for a consumer electronics radio device. The design should be moderate in complexity, featuring 2-4 layers and a moderate number of components. Essential requirements: - Must include a microcontroller. - Experience in PCB design for consumer electronics is preferred. - Familiarity with radio frequency and communication is a plus. Ideal skills and experience: - Proficiency in PCB design software (e.g., Altium Designer, Eagle). - Knowledge of circuit design and layout. - Experience with layer stacking and component placement. - Ability to provide a schematic and gerber files upon completion. Please provide a portfolio showcasing similar projects.

I need a soft shell iPhone case integrated with a power bank. The design should be slim and lightweight, ensuring easy portability without sacrificing protection. Key Requirements: - Soft shell material - Power bank integration - Slim, lightweight design Ideal Skills/Experience: - Experience in product design and prototyping - Knowledge of power bank technology - Familiarity with soft shell materials and manufacturing I need this project completed ASAP. Please provide samples of previous similar work.

Pago 90 usd entrega urgente BRIEF TÉCNICO — DISEÑO PCB ESP32 1. Objetivo Desarrollar una PCB personalizada tomando como referencia la NodeMCU ESP32 v1.1, adaptándola al módulo ESP32-WROVER-IE (LCSC C701351) y a los requerimientos indicados por el cliente. El diseño debe realizarse en KiCad, dejando todos los archivos preparados para fabricación/ensamblaje mediante JLCPCB. --- 2. Dimensiones y restricciones mecánicas - Mantener la posición y distribución de los pines principales compatibles con la referencia NodeMCU ESP32 v1.1. - La PCB puede ser más larga si es necesario, pero no debe sobresalir de la PCB principal U1 en las zonas donde exista esta restricción. - Los tornillos, fijaciones y componente...

Freelancer Required – SAW Welding Controller Development We are looking for an experienced Embedded Systems / PCB Design Engineer to develop a dedicated controller PCB for an SAW (Submerged Arc Welding) machine. The welding control logic has already been developed and tested on an Arduino development board. We now want to convert the existing prototype into a reliable, compact and industrial-grade controller PCB. Scope of Work * Review existing Arduino code and logic * Convert Arduino-based control logic to a suitable MCU platform such as STM32 * Design complete circuit schematic * Design industrial-grade PCB * 24 VDC industrial input/output * Isolated digital inputs and protected digital outputs * Analog inputs for welding voltage/current feedback * Welding voltage sensing with ...

POOL 1.5hp ‘filter’ pump with overload protection, starter, contactor, timeclock and rotary isolator 2hp variable speed ‘overflow’ pump with overload, starter, contactor, timeclock and rotary isolator 1hp auto pool cleaner pump with overload, starter, contactor, timeclock and rotary isolator. Inter- locked to filter pump, so can only run when filter pump is running. 4no. LED 20w 12v underwater lights with 300w driver (supplied by us) with a switched fused spur and external waterproof switch positioned next to pool cover switch. Frost stat positioned externally (supplied by us) linked to filter pump and overflow pump. Hydraulic pump for auto cover with rotary isolator and external switching ( key switch supplied by us) positioned in full sight of pool. 24...

Pago 90 usd entrega urgente BRIEF TÉCNICO — DISEÑO PCB ESP32 1. Objetivo Desarrollar una PCB personalizada tomando como referencia la NodeMCU ESP32 v1.1, adaptándola al módulo ESP32-WROVER-IE (LCSC C701351) y a los requerimientos indicados por el cliente. El diseño debe realizarse en KiCad, dejando todos los archivos preparados para fabricación/ensamblaje mediante JLCPCB. --- 2. Dimensiones y restricciones mecánicas - Mantener la posición y distribución de los pines principales compatibles con la referencia NodeMCU ESP32 v1.1. - La PCB puede ser más larga si es necesario, pero no debe sobresalir de la PCB principal U1 en las zonas donde exista esta restricción. - Los tornillos, fijaciones y componente...

Chip integrado en espinilleras de fútbol para medir distancia recorrida (hardware + app/web) Tengo una marca de espinilleras de fútbol personalizadas (AG8) y quiero desarrollar una versión "smart": integrar un chip entre la carcasa protectora y la espuma interior que permita a cada jugador ver cuántos kilómetros ha corrido durante un partido o entrenamiento. No tengo definida la solución técnica todavía — busco a alguien que me guíe desde cero y me proponga la mejor forma de hacerlo (chip + app, chip + web, con o sin batería, etc.). Contexto: Ya he explorado por mi cuenta una posible arquitectura basada en NFC con chips de "energy harvesting" (familia ST25DV) y un supercondensador, para evitar ...

I need a compact, production-ready PCB that brings together an ARM Cortex MCU with a temperature sensor, 3-axis accelerometer, optical heart-rate monitor, microphone, speaker and on-board flash. The board must seamlessly switch between battery operation and USB power, with integrated charging and safe power-path management so firmware updates and debugging over USB remain possible even while the battery tops up. Please handle the complete hardware flow: • Schematic capture • PCB layout with good analog isolation for the heart-rate front end • Clean breakout for the mic and speaker audio paths • EMI-conscious routing for the high-speed flash bus • Gerber files, drill data, pick-and-place and a curated BOM from mainstream suppliers I will review the design...

I have a fully-captured schematic that now needs to become a clean, reliable, two-layer PCB laid out in Altium Designer. The board is for an educational project, so component placement must favour easy hand-soldering and troubleshooting while still meeting good manufacturing practice. Here is what I am expecting: • Thoughtful SMD and through-hole placement with clear silkscreen labelling • Optimised routing, copper pours, and sensible track widths/clearances • Thermal relief and high-current considerations where required • Compliance with the specific manufacturing rules and stack-up I will supply Deliverables: 1. Altium project files (fully editable) 2. Gerber, NC Drill, solder-mask and paste layers ready for fabrication 3. Pick-and-place file plus update...

The schematic for my project is finished; what I need now is a clean, production-ready two-layer PCB designed in Altium. Every component on the board is through-hole, so pad sizes, hole diameters, annular rings and keep-outs must favour easy hand-soldering while still meeting modern fabrication standards. I do not yet have a specific manufacturer in mind, so I will rely on you to recommend practical design-for-manufacture rules (trace widths, clearances, drill limitations, etc.) that suit common low-volume board houses. Please fold those constraints into the layout from the start rather than treating them as a post-process check. Good thermal relief on large copper areas, sensible power/ground routing, and a tidy silkscreen with readable reference designators are essential for inspectio...

I have the complete schematic for an industrial-grade control board and now need it laid out as a two-layer PCB that can be sent straight to fabrication. The board will carry a mixed population of surface-mount and through-hole parts, so clear separation of assembly zones and sensible routing between the two technologies is essential. Here is what I need from you: • Convert my schematic into a neat, manufacturable layout that respects standard clearance rules for industrial equipment. • Optimise component placement for efficient heat dissipation and easy hand-solder access to the through-hole parts. • Provide all production data—Gerber, drill, solder-mask and paste layers—along with a pick-and-place file, updated BOM and the editable project file in your...

I'm seeking an experienced hardware designer to create a compact TPMS (Tire Pressure Monitoring System) chip that monitors both pressure and temperature for motorcycles. Key Requirements: - Monitor both tire pressure and temperature - Designed specifically for motorcycles - Should be compact Ideal Skills and Experience: - Expertise in chip design, specifically for monitoring systems - Experience with motorcycle electronics - Ability to design compact, efficient hardware Looking for someone with a proven track record in similar projects.

I already have complete Xschem schematics for three CMOS comparators—StrongARM, Double-Tail, and Triple-Tail—targeting the SkyWater 130 nm PDK. What I now need is the full-custom layout of each design in Magic, brought to a state where it meets the following requirements: * DRC-clean according to the standard Sky130 design rules * LVS-clean against the existing Xschem netlists * Power consumption, propagation delay, and input-referred offset should all be considered and optimized as much as reasonably possible during the layout design. Key Design Objectives There are three main performance criteria that are particularly important for this design: 1. Power consumption 2. Propagation delay 3. Input-referred offset These three parameters should be considered together througho...

I need a skilled expert to upgrade my boat's battery system to a higher capacity. Currently, my boat uses a lead-acid battery, and I’m looking to enhance its performance by upgrading both the battery and the inverter. Key Requirements: - Upgrade from lead-acid to a higher capacity battery (batteries will be provided). - Expertise in marine battery systems and inverter upgrades. - Knowledge of safety and installation procedures. Ideal Skills and Experience: - Experience with marine batteries, preferably lithium-ion. - Electrical engineering background is a plus. - Proven track record of similar battery and inverter upgrade projects. Please provide your previous work examples and a detailed plan for the upgrade.

I want to automate the filling of an overhead storage tank with a compact microcontroller-based solution. The unit should sense the water level in the tank, trigger the pump when the level drops below a defined threshold, and shut the pump off once the tank is full. I am using a standard overhead tank fed by a single pump from ground level. You’re free to recommend the most reliable sensing method—, or conductive—so long as it performs accurately in typical domestic water conditions and can be serviced easily if something fails. The design must include: • A microcontroller (Arduino, ESP32, or comparable) with clearly commented firmware. • A driver stage capable of switching a 1 HP single-phase pump safely. • Manual override for both pump ON and OFF. ...

I am building a compact embedded solution whose main role is to act as a communication system for live environmental monitoring. The unit must read temperature, humidity, air-quality indices, and soil-moisture levels, then push those readings reliably to a remote endpoint in real time. Here is what I need from you: • Hardware design: sensor selection, schematic, and PCB layout sized for low-power field deployment. • Firmware: driver code for the temperature & humidity, air-quality, and soil-moisture sensors, along with a lightweight stack that formats the data and handles wireless transmission. I have no fixed protocol in mind, so you may propose BLE, LoRa, Wi-Fi, or another option that balances range and power. • Data communication workflow: sample rate configura...

I have the core idea for a new board and now need the full circuit design translated into a clean, fabrication-ready PCB layout schematic. The project is strictly circuit-design focused: from refining the schematic to producing professional-grade PCB artwork that any standard board house can manufacture. You will start with my rough concept and component list, confirm critical specs (voltage rails, signal integrity, mechanical keep-outs), then create: • A complete, editable schematic (Altium Designer, KiCad, or Eagle—whichever you prefer and own a license for) • Layer-stack definition and board outline that respects my size constraints • Optimised component placement and routing, observing best-practice DRC and EMI/EMC guidelines • Gerber, drill, and pick...

I'm looking for an electrical engineer to design and build a custom solar rechargeable 12V, 24-inch 5-8 watt LED light light will be used outdoors and needs to provide medium brightness for general use. It should be able to stay on for at least 10 hours a night. It needs to be light and compact. Requirements: - Solar panel should be monocrystalline - Light should be weather-resistant and durable for outdoor use - no need for mounting hardware and installation instructions Ideal skills and experience: - Expertise in electrical engineering, especially with solar power systems - Experience designing outdoor LED lighting - Knowledge of weatherproofing and durable materials

I'm looking for a skilled developer to build a lighting MIDI fader console with USB integration. The console will primarily be used on Windows. Key Requirements: - User Interface: Physical knobs and faders - USB Integration: Must support Windows - Features: - Programmable buttons - Mappable controls Ideal Skills and Experience: - Experience with MIDI hardware and software - Proficiency in USB integration for Windows - Knowledge of physical interface design with knobs and faders - Ability to implement programmable and mappable controls **EXPERIENCE WITH ARTNET A PLUS FOR FUTURE PROJECTS** Please provide samples of previous work related to MIDI or hardware integration. We are an American Manufacturing Company looking to replace our lead designer. Must have Cad and Programmi...

My collection of personal vapour devices has gradually stopped performing. I need an electronics-savvy troubleshooter who understands vape mods, pens, and similar hardware to fix these. I have about seventeen of these. They're first generation, three-part, meaning the atomizer is separate from the battery section. I've replaced the batteries, and the circuit boards. The batteries are working, as the LED is lighting when "drawn" on, but they're producing no vapour. I want to save these because I can't find them anymore, and it's the only kind I can use. I hope someone can help.

Description I need one physical prototype assembled from a complete, tested design. This is a hands-on build — soldering, basic fabric mounting, and loading provided code — with no design work. Everything you need is written down: a parts list (~$80), a wiring diagram, a belt layout drawing, the two microcontroller programs, and a three-step verification procedure. What you'll build A wearable elastic belt carrying six small 3V coin vibration motors, each glued into a small rigid pod and Velcro-mounted so it can be repositioned. The motors are driven by a BBC micro:bit v2 through a ULN2003 driver chip, powered by a 3×AA pack, housed in a small pouch or box on the belt. A second micro:bit v2 serves as a handheld controller and talks to the belt over the micro:bit&#...

I’m building a small embedded prototype that can recognise a road accident the instant it happens, trigger a buzzer on-board and then text the vehicle’s GPS coordinates to a presaved emergency contact. An accelerometer will be the sole crash-detection sensor, so the firmware has to watch for abnormal spikes on that device, classify them reliably as a collision rather than rough driving, and fire the alert routine. Here is the workflow I have in mind: the microcontroller samples the accelerometer, confirms the threshold breach, sounds the buzzer for nearby help, fetches latitude and longitude from an attached GPS module and immediately sends an SMS through a GSM or LTE-M modem. If the cellular network is down, the code should queue and retry until a signal is regained. What I ...

PROJECT SPECIFICATION – STM32H573 INTERFACE / PROGRAMMER WITH 2 × CAN/CAN FD I am looking for someone to create a complete electronic schematic and PCB design for a device based on the STM32H573RIT6. The project must be created in KiCad 9.0 and delivered as editable source files along with production files. 1. BASIC REQUIREMENTS - PCB dimensions: maximum 80 × 50 mm. - Double-sided laminate: 2 copper layers. - Device power supply: exclusively via USB-C port (5 V). - Voltage from the DB15 connector is not used to power the device; it is solely measured by the microcontroller's ADC input. - Two independent CAN/CAN FD channels. - Two LEDs placed next to the USB-C connector and controlled directly by the STM32. - SWD programming/debugging connector. - THT-mounted HSE ...

I am integrating a 50-pin FPC connector taken from a mobile phone into a brand-new product, but I have absolutely no documentation on it. Your task is to uncover every signal on that ribbon—power rails, data lines, control pins, grounds—so I can design a compatible mating board without risking damage to either side. Here is what I can supply once we start: • Clear macro photos of both sides of the flex and its mating board • A working handset for continuity checks or live probing if needed • physical pcb can be couriour within india What I need back from you: • A complete pin-by-pin table listing signal names, functions, and voltage levels where applicable • A brief description of the testing or reverse-engineering method you used (tracing, conti...

I need a reliable, Taiwan-based agent who can locate and secure every class of electronic component I use—semiconductors, passive parts, and electromechanical devices—and then follow the parts all the way through to verified, bench-tested quality. My projects move quickly, so I want you to: • Identify multiple local suppliers, request quotes, and negotiate realistic lead times. • Arrange sample shipments, organise full batch purchases, and manage export logistics. • Oversee comprehensive testing and quality control in accredited labs, delivering clear reports that show the parts meet spec before they leave Taiwan. Experience with OEM/ODM supply chains, knowledge of local distributors in Hsinchu and Taoyuan, and comfort working in both Mandarin and Eng...

We are looking for an experienced freelance Embedded Hardware + PCB + Firmware Engineer for an IoT/industrial electronics project. Location: Kolkata preferred Required hands-on experience: • STM32 Nucleo / Discovery boards • Embedded C/C++ and STM32 firmware • UART / USART / RS485 / Modbus RTU • USB-to-RS485 & UART-to-RS485 • GSM / 4G / LTE modules and AT commands • PCB schematic & layout – KiCad / Altium / Eagle / EasyEDA • Component selection & BOM preparation • Power supply and protection circuits • Logic analyzer / oscilloscope / multimeter • PCB bring-up, debugging and hardware testing • Sensor and industrial interface integration • ADC / 4–20mA / 0–2V interfaces Good to have: ESP32, MQTT, Lo...

Electrical discrimination study completed using trimble software or similar proving discrimination between all circuit breakers I can provide cable lengths etc uk standard I can also provide base trimble pro design model

PADS PCB Design for high speed 16 layer board. Repy only if you have the PADS software and experince of high speed circuits

I want to kick-off a line of small automotive sound devices by starting with a straightforward 12 V buzzer that gives a single, clear alert tone. Your job is to take the idea from concept all the way to a testable prototype that can survive the usual temperature, vibration and voltage transients found under the hood. What I need right now • Electrical design (schematic, BOM and PCB layout) • Component choices that are readily available and automotive-grade • Basic acoustic tuning so the tone is sharp and easily heard inside and outside the vehicle • Short validation notes showing it meets the normal 9-16 V operating range and can cope with load-dump / reverse-polarity conditions Show me examples of past work on comparable low-cost automotive or motorcycle elec...

I need a compact laser-based perimeter protection system for a commercial site that immediately calls a predefined phone number whenever the beam is interrupted. The solution must combine reliable laser detection hardware with a GSM module (SIM800, SIM900 or similar) and the embedded code to place that outbound call within seconds of a breach. The finished unit should be self-contained, run from standard low-voltage DC, and include clear wiring diagrams and firmware source so I can duplicate or service it later. If you can integrate basic tamper detection, weather-proof housings, or an optional battery backup, mention that in your proposal—those extras would be a plus but are not mandatory. To accept the work I will power up the prototype on-site, break the beam and confirm that my...

We are looking for an experienced PCB designer to help with PCB schematic design, PCB layout, component selection, routing, and preparation of manufacturing-ready files.

I am looking for an experienced electronics/IoT developer to build a **working prototype of a 4G SIM-based security camera and a simple mobile app**. The camera should work without Wi-Fi and connect to the internet using a SIM/4G network. ### Prototype Requirements * Camera with live video * 4G/SIM connectivity * Microphone + speaker for two-way communication * Battery powered * USB-C/external power or power bank support * Remote viewing from a mobile app * Basic camera controls * Simple backend/cloud connection * Prototype should support the concept of having multiple cameras at one location For the first stage, I am **not looking for a production-ready/custom-manufactured camera**. Commercially available development boards/modules can be used. The goal is to build **one complete wor...

I already have a fully-verified KiCad schematic for a small industrial power supply and now need the actual board laid out. The goal is to squeeze the design into the smallest practical footprint without compromising functionality, so every millimetre saved counts. All parts must sit on the top layer only; the underside has to stay completely flat for mechanical clearance and easy heat sinking against a metal chassis. Because of that mechanical requirement, I want to stick with standard through-hole vias rather than blind, buried, or micro solutions. Here’s what I would like you to handle: • Precise component placement that respects the single-sided assembly constraint. • Clean, compact routing that keeps the overall dimensions as tight as possible while meeting manufac...

I’m building a compact entertainment gadget dedicated to high-quality audio playback and I need a complete PCB designed from scratch. The board must meet all the usual consumer-electronics constraints—low noise, minimal power draw, reliable mass-production tolerances—and fit inside a small enclosure that I will share once we start. Here’s what I expect from you: • Schematic capture based on my block diagram and component preferences • Optimised multilayer board layout with proper ground-plane management for clean audio paths • Gerber, drill and pick-and-place files ready for fabrication • A clearly organised BOM with current, purchasable parts and viable alternates • Brief design notes explaining critical decisions (impedance contro...

I’m putting together a straightforward location-tracking system for loads of non-perishable goods that move through warehouses, trucks, and rail cars. The core requirement is real-time position updates from departure to storage, with automatic alerts if a device signals potential theft. The hardware can be either single-use—so the receiver never has to return or recharge the tag—or a reusable unit that we can redeploy after each trip. I’ll need your help scoping both variants and producing an estimated cost per device for each. What I expect from you • A concise technical proposal outlining the recommended tracker form factor, network technology (e.g., GSM, LTE-M, NB-IoT, LoRaWAN), and back-end platform or API you plan to leverage. • A table or brie...