Electronics

**Project Description** This project focuses on the verification, testing, and validation of an already fabricated printed circuit board (PCB) designed to drive and interface with an underwater acoustic transducer... (Budget: $250 - $750 USD, Jobs: 3D CAD, 3D Design, 3D Modelling, Electrical Engineering, Electronics, Embedded Systems, Engineering, Mechanical Engineering, Prototyping, Raspberry Pi)

I have a TI-OS graphing calculator on my desk, a bag of parts, and a YouTube tutorial that supposedly turns the device into a pocket-sized ChatGPT terminal. What I need now is an experienced hardware-meets-firmware problem-solver who can transform that theory into a working build... (Budget: $30 - $250 USD, Jobs: AI (Artificial Intelligence) HW/SW, Chatbot, Electronics, Embedded Systems, Firmware Development, LabVIEW, Microcontroller, Python)

1) Need to do total re routing 2) need to add esp32 c6 wroom 1 vis uart,spi and i2c 3) add eeprom 4) correct modbus error 5) re naming all I/O (Budget: ₹1500 - ₹12500 INR, Jobs: Circuit Design, Electrical Engineering, Electronics, PCB Layout, Simulation)

Technical Specification: Inkjet DC Servo Motor Emulation via NEMA Stepper Motor (Closed-Loop Conversion)1. Project ObjectiveTo design and implement an electronic intermediary system (signal translator) to replace the original DC carriage motor of an inkjet printer with a NEMA stepper motor... (Budget: $30 - $250 USD, Jobs: Arduino, Electrical Engineering, Electronics, Embedded Systems, Firmware Development, Microcontroller, Motor Control, Signal Processing)

I need a design prototype for a product that's in the early development stage. Requirements: - Detailed design mockups - Specifications for materials and components - User interface and experience design... (Budget: £20 - £250 GBP, Jobs: 3D Design, 3D Modelling, 3D Rendering, CAD / SolidWorks, Electronics, Graphic Design, Product Design, Prototyping, User Experience Research, User Interface / IA)

Need small anf compact HDI multilayer pcb from systematic to pcba which can be connected with my existing smartphone pcb . Requirement in custom pcb are - 1) NFC + custom NFC antena 2) Secure element... (Budget: ₹12500 - ₹37500 INR, Jobs: Circuit Design, Electrical Engineering, Electronics, Embedded Systems, Microcontroller, PCB Layout, Prototyping, Schematic Review)

The job centres on a detailed PSS E model of a large-scale photovoltaic plant integrated with a pumped-hydro storage scheme and tied to the Australian National Electricity Market. I already have the basic... (Budget: ₹1500 - ₹12500 INR, Jobs: Data Analysis, Electrical Engineering, Electronics, Engineering, Mechanical Engineering, Risk Assessment)

I already have a complete schematic and BOM for an embedded-system board and now need someone to turn it into a production-ready PCB in KiCad. You will receive the schematic, component list, and the exact board outline with mounting-hole locations so the size constraint is fixed from the start... (Budget: ₹600 - ₹1500 INR, Jobs: Circuit Design, Electrical Engineering, Electronics, Embedded Systems, PCB Layout, Prototyping)

I’m putting together a small robot that can be driven from a smartphone app so students can see core robotics concepts—actuators, basic kinematics, simple autonomy—in action. The emphasis is on clear demonstration... (Budget: $30 - $250 USD, Jobs: Arduino, Bluetooth, Bluetooth Low Energy (BLE), Electronics, Embedded Systems, Mobile App Development)

Our company needs the Electrical - Mechanical Engineer!!! >>>To show that you have carefully reviewed this job posting, please check my location (country) and state—at the very beginning of your proposal—the... (Budget: $3000 - $5000 USD, Jobs: Analog Electronics, Circuit Design, Electrical Engineering, Electronics, Engineering, Mechanical Engineering)

**Freelance PLC Programmer Required – Mitsubishi FX5 CPU / GX Works3** We are looking for an **experienced PLC programmer (10–12+ years of hands-on experience)** with strong expertise in **Mitsubishi FX5 series PLCs and GX Works3 programming software**... (Budget: ₹12500 - ₹37500 INR, Jobs: Electrical Engineering, Electronics, Microcontroller, PLC & SCADA, Process Automation, Software Development, Technical Support, Troubleshooting)

I need a complete electronics solution that can replace the original EBB board on an Axidraw-style writing machine. The job covers both hardware and software. Hardware scope • Design a compact, two-axis motor-control PCB built around an ESP32... (Budget: ₹1500 - ₹12500 INR, Jobs: Arduino, Electronics, Embedded Systems, Firmware Development, Microcontroller, Motor Control, PCB Layout, Python)

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... (Budget: $30 - $250 CAD, Jobs: API, API Development, C Programming, Cloud Computing, Data Analytics, Electrical Engineering, Electronics, GPS, Web Development, Wireless)

I will give you a complete distortion/overdrive guitar-pedal schematic along with a list of the exact parts I want to use. Your job is to recreate that digital circuit in EasyEDA, make sure every symbol... (Budget: $10 - $30 USD, Jobs: Circuit Design, Electrical Engineering, Electronics, PCB Layout)

I need an AI system that can identify computer devices such as PCIE ISA PCI AGP for a pick and place machine. The AI doesn't need to have a high level of precision; an accuracy of less than 80% is acceptable... (Budget: $30 - $250 AUD, Jobs: Electrical Engineering, Electronics, Large Language Models (LLMs), Machine Learning (ML), Robotic Process Automation, Robotics, Robotics and Cognitive Automation)

ESP32 Sonar Data Streaming to Android Phone – 300–400m Direct Wi-Fi Link, No Repeater I am looking for an experienced embedded/RF developer to build a reliable wireless communication system for a fishing boat sonar... (Budget: €30 - €250 EUR, Jobs: Android, Android App Development, Antenna Design, Electronics, Embedded Systems, Firmware Development, Mobile App Development, Signal Processing, Technical Documentation, Wireless)

I am looking for an experienced embedded hardware and audio electronics engineer to replicate a custom automotive audio reverb/DSP module from scratch (0 to 100 delivery). The original circuit uses a Spin... (Budget: ₹600 - ₹1500 INR, Jobs: Arduino, Audio Engineering, Electronics, Embedded Systems, Firmware Development, Microcontroller, PCB Layout, Prototyping)

I need someone physically located near Buckeye, Arizona to pick up a large electronic item I found on Craigslist, pack it with the proper protective materials, and ship it to my address in California.... (Budget: $30 - $250 USD, Jobs: Customer Service, Electronics, Logistics, Manufacturing, Product Sourcing, Shipping, Shipping Container, Supplier Sourcing)

I'm seeking a skilled PCB designer to create a board for mass production that integrates an ESP32 C3 Supermini with an HLK-LD2410C for sensor integration, specifically a presence sensor. Key Requirements:... (Budget: ₹1500 - ₹12500 INR, Jobs: Electrical Engineering, Electronic Design, Electronics, Embedded Systems, PCB Layout, Product Design, Prototyping, Sensor Integration)

I need a complete high-frequency RF PCB laid out in KiCad for a signal-processing application. The board must integrate antennas directly on the substrate; no filters or discrete amplifiers are planned... (Budget: $250 - $750 USD, Jobs: Antenna Design, C Programming, Circuit Design, Electrical Engineering, Electronics, PCB Layout, Signal Processing)