Electronics

I need a skilled engineer to design an outrunner Permanent Magnet Synchronous Motor (PMSM) using MotorCAD. The design will be used for application as a drive pulley for a conveyor system. The design should prioritize high efficiency and effective thermal management... (Budget: min $50 AUD, Jobs: Electrical Engineering, Electronics, Engineering, Finite Element Analysis, Industrial Engineering, Mechanical Engineering, Motor Control, Product Design, Radio Frequency Engineering, Thermal Analysis)

The goal of this short engagement is to turn my concept for a simple smart device into a working proof-of-concept. I need a tiny, battery-powered unit that senses when something is opened or closed, reports... (Budget: $1500 - $3000 USD, Jobs: Arduino, Circuit Design, Electronics, Embedded Systems, Microcontroller)

I’m developing a compact, plastic-enclosed educational device that lets students trigger audio lessons simply by tapping NFC tags. The unit is based on an ESP32, a PN532 NFC interface over SPI, an external... (Budget: €250 - €750 EUR, Jobs: Circuit Design, Electrical Engineering, Electronics, Embedded Systems, Microcontroller, PCB Layout)

I’m building EquiPulse, a soft, low-profile band that sits snugly on a horse and records veterinary-grade ECG around the clock while also collecting IMU and temperature data. Before I move on to physical... (Budget: $1500 - $3000 USD, Jobs: Altium Designer, Analog Electronics, Circuit Design, Electrical Engineering, Electronics, Embedded Systems, PCB Design and Layout, PCB Layout, Product Design, Signal Processing)

I need a compact control system that keeps my solar panels clean with an automated wiping mechanism. The microcontroller should drive a motor-based wiper bar, run from an AC source already available on site, and trigger only when it makes sense... (Budget: ₹750 - ₹1250 INR, Jobs: Arduino, Automation, Electronics, Embedded Systems, Microcontroller, Motor Control, PCB Layout, STM32)

I’m developing a college-level digital logic project in Xilinx Vivado and have reached the design and implementation phase. The core functionality has been outlined, but I need an experienced Vivado user... (Budget: ₹600 - ₹1500 INR, Jobs: Circuit Design, Electrical Engineering, Electronics, Embedded Systems, Microcontroller, Project Management, Simulation, Verilog / VHDL)

I need a practical, low-cost electronic shaft monitor for my potato equipment that will immediately warn the operator whenever a driven shaft stops or drops below a set RPM. The core functions are: • Continuous RPM sampling with a Hall-effect sensor on the shaft... (Budget: $250 - $750 CAD, Jobs: Arduino, C Programming, Circuit Design, Electrical Engineering, Electronics, Embedded Systems, Microcontroller, Raspberry Pi)

The project is a compact yet eye-catching digital scoreboard that combines classic seven-segment numerals with modern Bluetooth audio. It must show game scores for two teams on large 1.8-inch red seven-segment... (Budget: ₹600 - ₹1500 INR, Jobs: 2D Drawing, Arduino, Audio Production, Bluetooth, Electronics, Mechanical Engineering, Microcontroller, Sound Design)

I need an experienced Arduino / embedded systems freelancer to build a working physical prototype of an automated beverage sampling kiosk for gas stations / convenience stores. The device lets customers... (Budget: $30 - $250 USD, Jobs: Arduino, Documentation, Electronics, Embedded Systems, GitHub, Microcontroller, PCB Layout, Power Supply, Prototyping)

You will be the first line of defense for technical troubleshooting—fault codes, inverter resets, monitoring portal anomalies, sudden production drops—as well as the voice that guides owners on routine maintenance best practices... (Budget: €12 - €18 EUR, Jobs: Anomaly Detection, Customer Service, Documentation, Electrical Engineering, Electronics, Hubspot, Technical Documentation, Technical Support, Technical Writing, Troubleshooting)

I’m building an IoT device around an STM32 microcontroller and need the complete hardware-plus-software package brought to life. The board must expose SPI, UART and I2C so I can hook in sensors and a radio... (Budget: ₹400 - ₹750 INR, Jobs: C Programming, Electrical Engineering, Electronics, Embedded Systems, Microcontroller, PCB Design and Layout, PCB Layout, STM32)

This project is about building a physical “AI Secretary” system that combines a premium desk device with ultra‑simple wireless buttons people can stick anywhere to reach the same assistant. The goal is... (Budget: $3000 - $5000 USD, Jobs: AI Chatbot, AI Development, AI Model Integration, Electrical Engineering, Electronics, Embedded Systems, Microcontroller, PCB Layout)

I need an experienced FPGA programmer to assist with a data processing application. Key Requirements: - Proficiency in at least one of the following FPGAs: Xilinx, Altera, Lattice - Expertise in data... (Budget: €250 - €750 EUR, Jobs: Circuit Design, Data Processing, Digital Design, Electrical Engineering, Electronics, Embedded Systems, FPGA, Microcontroller, Signal Processing, Verilog / VHDL)

I want PCB design to order from JLCPCB. PCB combines an Ai-Thinker VC-02 Offline Voice Recognition Bare module with a CH32V003F4P6 MCU. The board will accept 5 V DC, step it down to 3.3 V through an AMS1117-3.3, and exchange UART data between the VC-02 and the CH32V003... (Budget: ₹1500 - ₹12500 INR, Jobs: Arduino, Audio Processing, Circuit Design, Electrical Engineering, Electronics, Embedded Systems, Microcontroller, PCB Layout, Signal Processing)

Looking for a distribution Protection and Control Engineer to design integration of a 50MW solar plant into an existing utility substation. The solar plant supplies the existing utility substation by two 10km 33kV overhead lines... (Budget: $750 - $1500 USD, Jobs: Circuit Design, Electrical Engineering, Electronics, Engineering, Power Generation, Telecommunications Engineering)

We are developing a luxury smart ring wearable and are looking for an experienced hardware engineer to design a compact PCB/FPC for this device. This is a very small wearable device, so experience with ultra-compact electronics is essential... (Budget: €250 - €750 EUR, Jobs: Altium Designer, Antenna Design, Circuit Design, DFM (Design for Manufacturing), Electrical Engineering, Electronics, Embedded Systems, PCB Design and Layout, PCB Layout)

1: Simple Arduino device detecting a switch from a device 2: 2 RBG light strips with 16 LEDS 3: 4 input outputs for on and off (Budget: $10 - $30 USD, Jobs: Arduino, C Programming, Electronics, Embedded Systems, Microcontroller)

I look for hardware developer. Electronics schema and pcb designer. (Budget: €30 - €250 EUR, Jobs: Circuit Design, Electrical Engineering, Electronics, Embedded Systems, Environmental Engineering, Manufacturing, PCB Design and Layout, PCB Layout, Prototyping, Technical Documentation)

I am putting together a 120 V DC source for a high-current, high-power three-phase AC motor installation and need a rock-solid schematic that I can hand straight to my technicians for build-out. The... (Budget: $30 - $250 USD, Jobs: Altium Designer, Circuit Design, Electrical Engineering, Electronics, Motor Control, PCB Layout)

Quiero que revises y mejores mi circuito basado en un Xiao ESP32-C3 que controla una tira EL de 1,65 m mediante un inversor 3,7 V DC → 100 V AC, un sensor táctil TTP223 y un MOSFET lógico (AO3400, IRLZ44N o SI2303)... (Budget: $250 - $750 USD, Jobs: Arduino, Circuit Design, Electrical Engineering, Electronics, Embedded Systems, Graphic Design, PCB Layout, Prototyping, Signal Processing, Technical Documentation)