Electronics

I need a Siemens-based control program that will run fully automatic temperature-and-humidity test cycles in a cascade chamber. The core logic must handle ramp, soak, and dwell sequences accurately, driving... (Budget: $250 - $750 USD, Jobs: Arduino, Automation, Documentation, Electrical Engineering, Electronics, PCB Layout, Programming, Software Development)

Looking for an experienced individual freelance laptop technician near Kalavasal, Madurai. Requirements: - Experience in Dell laptop hardware troubleshooting. - CPU overheating and cooling fan diagnosis... (Budget: ₹600 - ₹605 INR, Jobs: Computer Repair, Electronics, Electronics repair, Technical Support)

Lead Embedded / Mechatronics Engineer — Smart Hardware Prototype (ESP32, CAD, IoT) Lead Embedded / Mechatronics Engineer — Smart Hardware Prototype (ESP32, CAD, IoT) We are developing HappyMat™ Prototype... (Budget: $250 - $750 USD, Jobs: Bluetooth, CAD / SolidWorks, Electrical Engineering, Electronics, Embedded C++, Embedded Systems, Firmware Development, JavaScript, Mechatronics)

Title: Embedded + mechanical engineer: wireless sensor-triggered fluid dispenser prototype Project Build a proof-of-concept of two paired units: a remote trigger and a dispenser. The trigger is either a motion sensor or a weight-threshold pad (wired to the trigger unit)... (Budget: $750 - $1500 AUD, Jobs: 3D Printing, Arduino, CNC, Electronics, Embedded Systems, Manufacturing Design, Mechanical Engineering, PCB Layout, Product Design, STM32)

# BMW CAS3+ CAN Bus Ignition & Engine Cranking — Feasibility Investigation I'm looking for someone experienced in BMW electronics, automotive CAN bus communication, and firmware reverse engineering. **Vehicle:** BMW E61 520d LCI (2009), manual transmission, original CAS3+ module... (Budget: €30 - €250 EUR, Jobs: Automotive Engineering, C Programming, CAN Bus, Data Analysis, Electrical Engineering, Electronics, Firmware Development, Microcontroller, Reverse Engineering, Signal Processing)

I have a custom-shaped PCB that needs a purpose-built 3D enclosure for a portable, handheld device. I will supply the board outline, component heights, and connector positions; your task is to turn that... (Budget: $750 - $1500 USD, Jobs: 3D CAD, 3D Design, 3D Modelling, AutoCAD, CAD/CAM, Electronics, PCB Layout, Product Design)

I have a concept for a compact, microcontroller-based board that must talk to external sensors over Bluetooth only—no Wi-Fi or cellular. The goal is to move from idea to fabrication-ready files while keeping... (Budget: $750 - $1500 USD, Jobs: Bluetooth, Circuit Design, Electrical Engineering, Electronics, Firmware, Microcontroller, PCB Layout, Prototyping)

I need a complete program for the XGK-CPUH PLC. The PLC will control a pump and tank system. The programmer should ideally have experience with: - XGK-CPUH PLC programming - Pump and tank control systems... (Budget: $10 - $20 SGD, Jobs: Control Systems Engineering (PID / MPC), Electrical Engineering, Electronics, Microcontroller, PLC & SCADA)

Electronics Engineer Needed – Confidential Hardware Startup Project I am a UK-based entrepreneur developing a new technology product and looking for an experienced electronics engineer to help me build an initial prototype... (Budget: £20 - £250 GBP, Jobs: Circuit Design, Electrical Engineering, Electronics, Embedded Systems, Firmware Development, PCB Layout, Product Design, Technical Documentation)

Bitirme projemde ivmeölçer sensöründen veri okuyup bu titreşim bilgisini frekans değerine dönüştürecek kompakt bir PCB kartı tasarlatmak istiyorum. Kartın ana işlevi yalnızca sensör verisini toplamak ve... (Budget: $30 - $250 USD, Jobs: Circuit Design, Electrical Engineering, Electronics, Embedded Systems, Microcontroller, PCB Layout, Prototyping, Schematic Review, Signal Processing, Translation)

Project: ESP32 Firmware Development — [e.g. E-paper Display Driver + MQTT Integration] We are an IoT company building ESP32-based devices with our own device SDK and cloud platform (MQTT, OTA, device management)... (Budget: $250 - $750 USD, Jobs: API Development, Arduino, Bluetooth Low Energy (BLE), C Programming, Electronics, Embedded Systems, Firmware Development, Microcontroller, MQTT, PCB Layout)

I have a finished board that currently carries a Micro-USB connector. I now need that footprint, schematic, and routing swapped to a USB Type-C receptacle so the product can handle both power and low-speed USB 2.0 data with the plug inserted in either orientation... (Budget: ₹1500 - ₹12500 INR, Jobs: Altium Designer, Arduino, Circuit Design, Electronics, Embedded Systems, Microcontroller, PCB Layout)

I'm seeking an experienced RF circuit designer to develop a low-noise receiver front end for a signal amplifier or receiver application, specifically for frequencies below 1 GHz. Key Requirements: - Design a low-noise receiver front end circuit... (Budget: $30 - $250 USD, Jobs: Analog Electronics, Circuit Design, Electrical Engineering, Electronics, PCB Layout, Signal Processing, Simulation)

I have drafted a small ESP32 board with an on-board MOSFET switcher in TSCircuit and want a fresh, expert set of eyes on the layout before I send it to PCBWay. The schematic is stable; what I need now... (Budget: $30 - $250 USD, Jobs: Circuit Board Layout, Circuit Design, Design Optimization, Electrical Engineering, Electronics, PCB Layout, Schematic Review, Technical Documentation)

URGENTE. Necesito una persona que maneje Tinkercad Circuits para realizar 5 circuitos de álgebra booleana. Tengo el PDF con todos los ejercicios y las expresiones. Necesito los circuitos montados, simulados y los enlaces editables de Tinkercad, además de capturas de funcionamiento... (Budget: $20000 - $50000 USD, Jobs: Chemical Engineering, Circuit Design, Digital Electronics, Electrical Engineering, Electronics, Engineering, Prototyping, Tinkercad)

Please note that below task is only available to local Germans and long-term German residents. I need help tracking down reliable, fairly-priced, second-hand test and measurement instruments here in Germany... (Budget: $10 - $30 USD, Jobs: Customer Support, Data Collection, Electrical Engineering, Electronics, German Translator, Market Research, Sourcing, Supplier Verification)

I need MnFe₂O₄ nanoparticles with demonstrably strong magnetic responsiveness, engineered specifically for magnetic separation in water-treatment systems that target heavy-metal ions such as lead and arsenic... (Budget: $1500 - $3000 USD, Jobs: Electronics, Materials Science, Nanotechnology, Water Treatment)

RF engineer wanted for independent review of automotive GPS + digital radio LNA I have an existing RF/LNA design for an automotive application with two frequency paths: GPS and digital radio. I am looking... (Budget: €30 - €250 EUR, Jobs: Automotive Engineering, Circuit Design, Electrical Engineering, Electronics, PCB Layout, Signal Processing)

Hi, I came across your profile and your PCB/hardware experience looks like a great fit. I'm Sotiris from Hylo, an early-stage hardware startup in Hong Kong. We're looking for a freelance/part-time electronics... (Budget: ₹100 - ₹400 INR, Jobs: Circuit Design, Electrical Engineering, Electronics, Embedded Systems, Manufacturing, Microcontroller, PCB Layout, Prototype Design, Prototyping, Testing / QA)

I’m upgrading a fleet of vending machines and need a full design for a compact contactless payment module that can drop straight into the standard MDB/Executive slot already present in each unit. The reader... (Budget: $250 - $750 AUD, Jobs: API Development, Electrical Engineering, Electronics, Embedded Systems, Firmware Development, Microcontroller, PCB Design and Layout, PCB Layout)