Electronics

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)

I’m building a small arcade-style attraction made up of six identical stations. Each station will recognise when its hand-held controller is lifted by means of a magnetic sensor—or any other proper kind of sensor —then launch a three-minute countdown... (Budget: $250 - $750 CAD, Jobs: Arduino, Circuit Design, Documentation, Electrical Engineering, Electronics, Embedded Systems, Game Development, Microcontroller, Prototyping, Software Development)

I have a commercial IR-band Laser device with essentially two "Modes" - NORMAL and TRAINING, or restricted. Switching between the two can only be accomplished by accessing the Firmware via a proprietary 8-pin connection, for which I do not have a cable or interface... (Budget: $500 - $1000 USD, Jobs: Circuit Design, Consumer Products, Electronics, Embedded Systems, Firmware, Local Job, Microcontroller, Signal Processing)

Looking for an Engineer with strong experience in industrial automation, control systems, and OT infrastructure. Freelancers should be proficient in following: ----->>> Configuration, maintenance and... (Budget: $30 - $250 USD, Jobs: Control System Design, Electrical Engineering, Electronics, Industrial Engineering, Instrumentation, Microcontroller, PLC, PLC & SCADA)

I'm in immediate need of an expert with PyroSim software experience who can provide a detailed fire simulation. Unfortunately, some considerations were missed initially, so it's critical that your knowledge is comprehensive... (Budget: ₹12500 - ₹37500 INR, Jobs: Electrical Engineering, Electronics, Engineering, Mathematics, Matlab and Mathematica)

Project Title: Convert traced sketch to precise PCB outline CAD drawing (DXF) Description: I have attached a traced sketch of a PCB outline with component placement references. The drawing was created by tracing, so it is not dimensionally accurate... (Budget: $10 - $30 USD, Jobs: 2D Drafting, 2D Layout, Circuit Design, Documentation, Electrical Engineering, Electronics, Mechanical Design, PCB Layout, Prototyping, Schematic Review)

I need an expert to set up Ignition SCADA and integrate it with one Allen-Bradley CompactLogix PLCs for monitoring an existing process. In addition we need a panel designed and integrated that will monitor compressed air and nitrogen... (Budget: $25 - $50 USD, Jobs: Automation, Circuit Design, Control Engineering, Data Visualization, Electrical Engineering, Electronics, Engineering, Instrumentation, PLC, Process Automation)

I am looking for an experienced mobile app designer/developer to help create the first prototype (MVP) of a mobile app Please let me know if you have experience designing sports performance or wearable technology apps, and if you can share examples of your previous work... (Budget: $250 - $750 AUD, Jobs: Arduino, Bluetooth, Electronics, Embedded Systems, GPS, JSON, Mobile App Development)

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 need assistance connecting my Panasonic VCR/DVD combo to my HDMI-based TV. I already have an HDMI converter or adapter. Requirements: - Experience with A/V equipment - Familiarity with HDMI connections... (Budget: £10 - £20 GBP, Jobs: A/V design, A/V Engineering, Arduino, Electrical Engineering, Electronics, PCB Layout, Technical Support, Troubleshooting)

We need a board that "translate" signal from DMX to led strip pixel adressable. Need to integrate RGB and RGBW pixel in various protocol, with clock or only data. Only one data signal needed (170 rgb... (Budget: €30 - €250 EUR, Jobs: Circuit Design, Electrical Engineering, Electronics, Embedded Software, Embedded Systems, Microcontroller, PCB Layout, Prototype Design, Prototyping, Rapid Prototyping)