Embedded Systems Jobs

I have a working electronic product already selling in the United States, yet its current board is dated and hard to manufacture. I hold the original schematics but no PCB files, so the first step will be to extract every detail from the physical board, identify each component, and rebuild the entire design in KiCad. Your primary objective is to reproduce all existing functionality while streamlining the layout for better design efficiency and smoother volume production. As you work, please keep U.S. safety, EMC, and environmental requirements in mind so the finished board is ready for certification. If firmware hooks or test pads reveal embedded code, document anything relevant that a firmware engineer would need to know; full‐scale firmware work is not expected, but component-level in...

I need assistance getting Squareline Studio to work with Arduino IDE on a Waveshare 7-inch board. My libraries are messed up, and I'm encountering compilation errors due to missing libraries and what not. Set up my first own project so I can work on it in Square line studio and transfer to Arduio IDE. Key Tasks: - Using Windows 10. Done! - Install Square line Studio 1.6.1. Done! - Maybe want to use Eez studio instead since it is free. It is also installed already. - Install Arduino IDE 2.3. Done! - Use correct folder for IDE .ino files. - Setup Square line Studio and export project to correct folder. - Compile a sample project successfully. Waveshare board to use: ESP32-S3-Touch-LCD-7B with touch. Ideal Skills & Experience: - Experience with Arduino IDE and Waveshare boards...

I need end-to-end development for a Tire Pressure Monitoring System that reads pressure and temperature from wireless sensors over BLE, processes the data on an embedded controller, and mirrors everything in a cross-platform mobile app. Firmware • Build reliable, low-power BLE firmware that continuously scans, pairs with the sensors, and streams raw pressure/temperature values to the host MCU. • Implement data validation, unit conversion, and error handling directly on the device so only clean, usable figures reach the UI layer. Mobile application (iOS & Android) The same codebase should compile for both iOS and Android—React Native, Flutter, or any approach you are comfortable with is fine as long as performance is smooth and native BLE APIs are used. The a...

I need a seasoned LabVIEW developer to build a complete control-system application. The task centers on crafting robust control logic, tuning the controller, and producing a clean, well-documented set of VIs that I can load straight onto my hardware. At this stage the target platform is still open—CompactRIO, MyRIO, or even a standard NI DAQ—so the code must remain portable and easy to adapt once we lock in the final device. You will design the architecture, implement and tune the control algorithm, create an intuitive front panel, simulate or test on actual hardware, and hand over production-ready files. Deliverables • LabVIEW project (.lvproj) with modular, clearly named VIs • Concise documentation explaining architecture, key parameters, and tuning steps &bul...

For a Spanish speaker in Barcelona! I am bringing together a compact laser platform and an FPGA-based control board here in Barcelona, and I need an engineer who can sit beside the hardware, plug in the scopes and power rails, and push the overall performance to its limit. The work is squarely at the crossroads of optics and digital electronics: you will be aligning the laser path with a set of optical sensors, tightening the signal chain that feeds the onboard FPGA signal processors, and making sure the power supplies deliver exactly what the photonics and the logic fabric demand—no more, no less. What I expect you to drive: • Physical and electrical integration of the laser module with the FPGA board • Low-noise routing between optical sensors and high-speed signal...

I’m developing an ultra-thin heated glove that feels no bulkier than a regular winter liner yet warms the wearer’s hands rapidly and evenly. To get there I need help moving from concept sketches to a working prototype I can put through real-world testing. Here’s what I already have and what I still need: • Concept drawings that illustrate overall look, target thickness (≤3 mm excluding battery) and desired heating zones along fingers and back of hand. • Preliminary research on micro-film resistive heaters, flexible lithium-ion pouch cells, and low-profile USB-C charging circuits. You would handle the technical integration—selecting the thinnest safe heating element, embedding it into a comfortable textile stack, designing a compact power/controls m...

We are looking for an experienced electronics / embedded hardware freelancer to help assemble and test 5 pilot units of an ESP32-S3 based IoT mini controller. The PCB/PCBA boards are already designed and manufactured by JLCPCB. The firmware file is also ready. This project is not for PCB design and not for firmware development from scratch. The main task is physical assembly, firmware flashing via USB-TTL, and basic bench testing. The final goal is to prepare 5 working pilot units in the correct order: Milestone 1: Assemble, flash and test 1 pilot unit first. Milestone 2: After the first unit is validated successfully, assemble, flash and test the remaining 4 units using the same process. Scope of work: * Mount the PCB/PCBA into an IP65/IP66 enclosure * Connect the external Wi-Fi an...

More details: Which software tool should be used to recreate the schematic? Altium What information should successful freelancers include in their application? Experience Do you have any specific requirements or standards that the schematic must adhere to? Industry standards

I need a senior-level electrical engineer who can split time between working remotely and being on site in Orange County, CA. The project centers on motor-control electronics, so every board you design must reliably drive, sense, and protect a variety of motors under real-world loads. Here’s the flow I expect: • Draw the schematic and capture the BOM for a new motor-control PCB, selecting components that meet cost, thermal, and EMI constraints. • Lay out the board for manufacturability, noise immunity, and serviceability, then generate all fabrication and assembly files. • Oversee prototype builds, bring the hardware up in the lab, and run functional, thermal, and load tests with my existing motor rigs. • When issues surface, dive into trace analysis, osci...

I need a compact, kitchen-chimney-friendly PCB that drives an ultrasonic transducer in the 40 kHz – 60 kHz band from an AC-mains supply. The goal is a reliable, low-cost circuit that keeps insects away without adding bulk or noise to the appliance. Here is the scope I have in mind: • Circuit conception and PCB layout, mindful of minimal component count and low BOM cost • Full documentation package—schematic, PCB design files, Gerbers, pick-and-place data, and detailed BOM with part numbers and estimated pricing • Advice on a suitable microcontroller or discrete-logic approach; I’m open to Arduino, ESP8266, PIC or any alternative that meets cost and space targets • Consideration for safe mains rectification, filtering and isolation so the board ...

I need a complete electrical and mechanical design for a Framework Laptop expansion card built around the RP235xA microcontroller in the 30-GPIO QFN-60 package. My top priority is that everything fits perfectly inside the standard expansion-card envelope defined in Framework’s official repository (). Key requirements you must hit • Use the RP2350 and expose all USB-C power and signal constraints exactly as the Framework reference dictates. • Keep the card flush: no part of the PCB, component or connector may project past the official boundary. • Place two tactile switches (reset and boot) plus one RGB LED (I’m thinking WS2812 or equivalent) and one status LED on the underside so they are visible and accessible when the card is plugged into the laptop. ...

**Siemens TIA Portal Commissioning Engineer (Freelance) – Satu Mare, Romania** Dear Sir or Madam, For an ongoing industrial automation project, we are currently looking for an experienced **Siemens TIA Portal Commissioning Engineer** on a freelance basis. **Project Details** * **Client:** Automotive * **Location:** Satu Mare, Romania * **Start:** ASAP * **Duration:** 6 months * **Workload:** Approx. 50 hours per week **Scope of Work** * Commissioning of an automated assembly line * PLC commissioning and troubleshooting using Siemens TIA Portal * Support during startup and ramp-up phase * Optimization and debugging of PLC software * Integration and commissioning of welding stations * Cooperation with electrical, mechanical and production teams on site **R...

I want to prove that a pen-shaped gadget can masquerade as a Bluetooth HID and reliably control media on an iPhone. All I need right now is a working one-off prototype; certification, refined industrial design, and long-term battery optimisation can wait. Core requirements • The electronics must fit inside a pen body (a 3D-printed tube is fine). • On power-up it should pair with an iPhone as a standard HID remote. • A single tactile button will cycle through Play/Pause → Next Track → Previous Track in that order, sending the appropriate consumer-control codes. • I’m flexible on the radio stack—Bluetooth Classic or BLE, whichever gets the job done fastest. • Robust, repeatable functionality matters more than looks. What I expect to ...

I need a compact, reliable AC solid-state relay designed specifically for driving pump loads. The control side will accept 3–32 V DC, while the load side must safely switch 24–380 V AC at a continuous 25 A. Core expectations • Status indication via a front-panel LED • Full opto-isolation between control and load • Zero-cross switching is preferred to minimise inrush, but I will consider a non-zero-cross solution if it offers clear advantages for motor-driven pumps. • The housing should be compatible with a standard heat-sink footprint, and I am open to either DIN-rail or panel mounting depending on what your thermal calculations show to be most practical. Deliverables 1. Full schematic with component values and reference designators 2. PCB ...

Project Overview We are seeking an experienced Embedded Hardware & Firmware Engineer with strong expertise in power electronics to design and develop a complete hardware and firmware solution for a variable-frequency, variable-voltage AC power supply. The system will generate a controlled AC output from a high-voltage DC input source and will be controlled through an SPI interface. Technical Requirements Input * DC Input Voltage: 120VDC to 150VDC Output * Output Frequency: 0 to 100 Hz (programmable) * Output Voltage: 20VAC to 100VAC RMS (programmable) * Stable output regulation across operating range Control Interface * SPI interface for: * Frequency adjustment * Output voltage/amplitude adjustment * Status and fault monitoring (preferred) Scope of Work Hardware ...

ESP32 Bluetooth-Enabled Umpire Indicator Prototype with Rotary Encoders (BLE Sync to Mobile App) *We have two full time App developers that you can work with. Project Description: Seeking an experienced embedded systems engineer to develop a functional prototype of a Bluetooth Low Energy (BLE) digital umpire indicator for slo-pitch softball. Reference: See attached image of standard Champion 4-dial indicator (Balls, Strikes, Outs, Innings). Requirements: • Replicate tactile dial feel using rotary encoders (notched/clicking action for no-look operation). • ESP32 (preferred) or equivalent microcontroller with BLE to transmit real-time count updates (balls/strikes/outs/innings) to a mobile app. • Device pairs with our existing slo-pitch live-streaming + scoring app and up...

RFID Hardware Product Development (NDA Required) We are looking for an experienced Hardware Engineer / RFID Specialist to design and develop a custom RFID-based hardware product. The product involves tracking and measuring physical expansion, dimensional changes, or movement of a tagged object over time using RFID and related sensing technologies. At this stage, only high-level information is being disclosed. Detailed project specifications, use cases, technical requirements, and commercial applications will be shared only with shortlisted candidates after execution of a Non-Disclosure Agreement (NDA). Required Skills RFID Technology (HF, UHF, NFC, Active/Passive RFID) Embedded Systems Hardware Product Design PCB Design Sensor Integration IoT Hardware Development Prototype Development Prod...

ESP32 firmware for an experimental, battery-powered maker devkit (SyncStim) that plays a 10 ms audio burst and, at a configurable interval, fires a charge-balanced biphasic constant-current electrotactile pulse train (plus an LED cue). The core requirement is timing fidelity and safe constant-current output, verified on an oscilloscope. Hardware is already specified (BOM): ESP32-WROOM-32D, MAX98357A I2S amplifier, DRV8871 H-bridge, DC-DC boost converter, LM334 constant-current source, current sense, SD card. Battery-powered and mains-isolated. Behavior: repeats a 200 ms cycle (5 Hz). Each cycle is a 10 ms audio burst over I2S, then after a configurable inter-stimulus interval, a burst of 3 biphasic pulses (150 microseconds per phase, 1 ms onset-to-onset), constant current, under 3 mA, ch...

I’m developing a new consumer-electronics gadget and need a compact, production-ready PCB designed around a Wi-Fi/Bluetooth module. The board must stay within a 4 x 4 inch footprint, leaving enough clearance for an enclosure that is already in progress. Here’s what I’m expecting from you: • Complete schematic capture and PCB layout in your preferred professional tool (Altium, KiCad, or Eagle are all fine). • Well-routed RF section that maintains antenna performance and meets FCC pre-compliance guidelines. • Gerber, drill, and pick-and-place files ready for fabrication. • A concise BOM with part numbers that have strong supply-chain availability. • Brief design notes highlighting impedance-controlled traces, power-plane considerations, a...

I have the full schematic for working legacy PCB. I need it redesigned and modernised into a new board using current components, while keeping the original board size, mounting holes and connector positions. The old design uses PIC18F8722, FT232RL, TDA7465, video switching and RCA outputs. The new design should replace those with STM32 native USB, modern audio DSP/codec, protected coin inputs, modern power regulation, and custom firmware support. This is not an exact clone. It is a modern drop-in replacement using the original schematics as a reference. Key things :- Keep: * Board size: 168mm × 206mm * 6 mounting holes * USB-B position * Existing amp connectors * Mic input * Coin mech interface * IR receiver/service button * J8 motherboard audio input Remove: * RCA sockets * Vi...

I have a small home-automation module that needs a reliable touch interface, so the task is to engineer a 5 V circuit around the TTP223 that cleanly switches between high and low digital levels whenever it is touched. Precision in sensitivity and long-term stability matter more to me than squeezing out the very last microamp, yet the design should still sit comfortably in standby without wasting power. Key expectations • The sensor must tolerate normal household electrical noise without false triggering. • Output logic levels must be directly MCU-friendly (TTL/CMOS, active-high preferred). • Component count should stay minimal; surface-mount parts are fine. • Any necessary debounce or filtering should happen in hardware rather than firmware. Deliverables 1. ...

I am building a small system that will ride on a vehicle and needs smart power and signal management. Two of the three loads are a Camera and a Transmitter; the third is still open for discussion once the basic framework is proven. An Arduino-class board running Python (CircuitPython or MicroPython is fine) will sit at the center of the design. Core behaviour • A proximity sensor with a simple NO/NC or other switched-DC output tells the microcontroller when the vehicle is near its target. On that event the code must turn the devices on or off, make or break the live analog video path, and if required trigger visual or audible alerts. • A vibration/accelerometer module tracks motion. When the vehicle has been still for a preset timeout the controller should cut power to all t...

I have a concept for a small control board that will act purely as a communication interface; the brain must be a microcontroller and every line on the board will ultimately speak SPI. I need the complete journey covered—from schematic capture through to a working prototype—and a simple companion application that can configure, send, and read data over that SPI bus. Hardware I want you to select an appropriate MCU, lay out the PCB, generate the BOM, and produce production-ready Gerbers. The board will only need the essentials: power regulation, the MCU, an SPI header, and whatever discretes are required for reliable signalling. Options such as UART or I²C might be added in a later revision, so leave enough pins and routing headroom for that future expansion. Firmware ...

I'm looking for an experienced firmware developer to work on an ESP32 microcontroller. The project involves integrating Wi-Fi connectivity and sensor integration for electricity monitoring. Key Requirements: - Develop firmware for ESP32 - Implement Wi-Fi connectivity - Integrate various sensors for monitoring electricity usage - Ensure reliable data transmission and system performance Ideal Skills and Experience: - Proficiency in ESP32 and related development environments - Strong background in firmware development - Experience with Wi-Fi protocols and sensor integration - Knowledge of electricity monitoring systems Please provide relevant work experience and approach to the project.

I’m building a tiny monitoring node around an ATTiny85 that has only four external components: a single LED, an NTC thermistor, a Hall-effect sensor and a piezo buzzer. I need clean, memory-efficient Arduino-style C/C++ code that: • Samples the thermistor, converts the reading to temperature and classifies it into three adjustable ranges. • Drives the lone LED so the user can tell at a glance which range we’re in (for instance OFF below the first threshold, slow blink in the middle, fast blink above the second threshold—but I’m open to any pattern that is easy to recognise). • Activates the buzzer whenever the temperature crosses the high-temperature limit and keeps it on until the reading falls back below that limit. • Reads and debounces...

I need a PCB design for a Graphene-based FET sensor readout system. The PCB should facilitate I-V characterization of GFETs by sweeping gate voltage (0-3V) and measuring current or resistance between source and drain. Key requirements: - Size: Medium (4x4 inches) - Interface: Connector terminals preferred - Component Inclusion: Partial component list available, open to recommendations Ideal skills and experience: - Expertise in PCB design - Experience with GFET or similar sensor technologies - Familiarity with I-V characterization setups - Knowledge of various electronic components and their integration

PCB Design Requirement Document Project: ARC LABS Smart Home Automation Controller About Us ARC LABS is an IoT and Embedded Systems company focused on developing commercial smart home and Industrial IoT products. We are looking for an experienced PCB designer who can help us develop a production-ready smart home controller PCB. ⸻ Project Scope Design a compact, reliable, and manufacturable PCB for a WiFi-based Smart Home Automation Controller. The PCB should be suitable for commercial production and comply with standard PCB manufacturing guidelines. ⸻ Hardware Requirements Main Controller * ESP32-C3 or ESP32-S3 (preferred) * USB Type-C programming interface * Auto reset and auto boot circuitry Power Supply * 230VAC to 5V isolated SMPS * 5V to 3.3V regulator * Over-voltage and ...

SKILLS:PCB Layout, EasyEDA, Electronics, Electrical Engineering, Embedded Systems, Circuit Design, Schematic Review, DFM, Gerber, BOM, Mixed-Signal Design DESCRIPTION: We need an experienced electronics / embedded hardware PCB designer for a confidential controller PCB project. The work must be done in EasyEDA. Important: full schematics, EasyEDA files, component details, connector mapping, mechanical constraints and architecture will NOT be shared publicly. Files will be shared only after NDA and IP Agreement are accepted. Project scope: 1. Review the existing schematics before PCB layout. 2. Identify schematic issues, missing values, footprint risks, connector or pin-mapping risks, power or grounding risks and manufacturing risks. 3. Prepare a correction list before PCB design starts....

Saya membutuhkan seorang ahli KiCad untuk membantu saya merancang dari nol sebuah skema elektronik sekaligus layout PCB berbasis mikrokontroler. Skema awal belum ada, jadi pendampingan dimulai sejak pemilihan komponen hingga penempatan jalur. Kebutuhan inti: • Mikrokontroler sebagai pusat sistem • Fitur komunikasi lengkap (USB, UART, SPI, I2C) Ruang lingkup pekerjaan: 1. Diskusi singkat untuk menentukan mikrokontroler yang paling sesuai. 2. Pembuatan skema elektronik di KiCad dengan semua jalur komunikasi aktif. 3. Layout PCB satu–dua layer yang siap produksi, memperhatikan ukuran praktis dan aturan DRC. 4. Penyusunan BOM beserta link pembelian komponen. 5. Ekspor berkas produksi (Gerber, drill file) dan file proyek KiCad lengkap. Bila Anda melihat perlunya...

Saya membutuhkan skematik rangkaian lengkap berbasis ESP32 untuk proyek sistem monitoring yang sedang saya kembangkan. Fokusnya hanya pada pembuatan skematik—belum masuk ke layout PCB atau file Gerber. Ruang lingkup: • Menyusun diagram elektrik yang mencakup ESP32, sensor-sensor utama, rangkaian catu daya, dan konektivitas dasar (USB, pin header, atau terminal blok sesuai kebutuhan). • Memastikan tiap net diberi label jelas agar mudah di-route pada tahap berikutnya. • Menyertakan daftar komponen (BOM) sederhana dengan nilai, footprint, dan referensi part umum. • Melakukan pengecekan DRC pada skematik untuk menghindari kesalahan sambungan sebelum saya lanjut ke tahap layout. Saya biasa bekerja di EasyEDA, jadi saya menginginkan file asli (.json) plus PDF ekspor a...

Saya sedang mengerjakan perangkat berbasis elektronika dan membutuhkan bantuan untuk merancang PCB dua layer lengkap dengan skematiknya. Fokus utamanya adalah memastikan tata letak rapi, jejak sinyal bersih, serta file Gerber siap produksi tanpa revisi berulang. Apa yang saya perlukan: • Skematik yang jelas dan terdokumentasi. • Layout PCB dua layer dengan penempatan komponen optimal untuk mikrokontroler, sensor, atau sistem kontrol sejenis. • File produksi: Gerber, BOM, dan file CAD asli (Altium, KiCad, atau sejenisnya) agar pabrikan langsung bisa mengeksekusi. • Sedikit panduan desain-for-manufacturing (jika ada batasan lebar jalur, jarak pad, atau via) supaya proses cetak lancar. Saya menghargai komunikasi terbuka—silakan ajukan pertanyaan teknis, saran...

Saya membutuhkan bantuan untuk merancang sebuah PCB double-layer yang akan digunakan sebagai papan kendali perangkat. Secara garis besar, saya sudah memiliki konsep fungsi tiap blok, tetapi masih memerlukan tenaga ahli untuk: • Menyusun skematik lengkap beserta penempatan komponen. • Merancang layout PCB dua lapis dengan routing yang rapi dan optimal noise. • Menyiapkan berkas produksi (Gerber, drill drawing, pick-and-place, dan BoM). • Memberi catatan singkat mengenai pemilihan komponen kritis dan pertimbangan arus/tegangan di jalur utama. Tool apa pun boleh digunakan—asalkan berkas akhir bisa dibuka di KiCad atau Altium. Saya terbuka untuk saran perbaikan desain maupun optimasi biaya produksi. Kirimkan portofolio singkat proyek serupa agar saya dapat men...

Saya sedang mengembangkan mainan pesawat bertenaga solar cell (2 V DC / 55 mA) dan memerlukan referensi micro motor DC ber-stall current rendah yang benar-benar bisa berputar dengan pasokan sekecil itu. Detail kebutuhan: • torsi & kecepatan tidak penting—yang utama motor mau start dan berputar stabil. • Motor DC harus kompatibel dengan ukuran solar cell yang sudah saya miliki. • Ya, harus sangat kecil; diameter dan panjang total tidak boleh melebihi motor bawaan di lampiran. Yang saya harapkan Anda kirim: 1. Daftar minimal 5 kandidat micro motor DC dari Alibaba atau marketplace global lain (AliExpress, Mouser, Digi-Key, dsb.). 2. Untuk tiap kandidat: link langsung ke produk, datasheet atau lembar spesifikasi, tegangan kerja, arus no-load dan stall, ...