Electronics

I need assistance with developing a litter box system using Arduino Uno. The project focuses on automating a conveyor belt system driven by a 12V DC motor, which will be controlled by an IR remote. The... (Budget: $30 - $250 AUD, Jobs: Arduino, Automation, Circuit Design, Electrical Engineering, Electronics, Embedded Systems, Home Automation, Microcontroller, Prototyping, Robotics)

I need help integrating a strain gauge amplifier card and a single-point load cell on a Mega for force measurement. Key Requirements: - Set up communication between the strain gauge amplifier and load cell with the Mega... (Budget: ₹1500 - ₹12500 INR, Jobs: Analog Electronics, Arduino, C Programming, Electronics, Embedded Systems, Instrumentation, Microcontroller, Signal Processing)

Project Description: We are looking for an experienced freelancer to conduct optical simulations using RSoft Photonic Device Tools. The goal is to optimize the optical behavior of a 30 cm x 30 cm birefringent (BEF) structure used in LCD panels... (Budget: $30 - $250 USD, Jobs: Data Visualization, Design Optimization, Electrical Engineering, Electronics, Engineering, Matlab and Mathematica, Optical Engineering, Report Writing)

I need an experienced electronics engineer I can rely on for a steady stream of small-to-medium assignments. The actual work will vary from week to week—sometimes it’s refining an existing schematic, other... (Budget: $8 - $15 USD, Jobs: Circuit Design, Electrical Engineering, Electronics, Embedded Systems, PCB Design and Layout, PCB Layout, Prototyping, Rapid Prototyping, Simulation, Troubleshooting)

I need an industrial designer specializing in ergonomics for a fully automated material testing instrument. The device will be used in a laboratory setting. Key Requirements: - Design for user comfort... (Budget: ₹1500 - ₹12500 INR, Jobs: Automation, CAD/CAM, Electrical Engineering, Electronics, Industrial Design, Product Design, User Experience Research, User Interface / IA)

I need step-by-step LEGO building instructions—laid out in the same clear visual style as the sample file I’ll share—for a competition robot that can burst rival balloons, shield our own, and sprint around the arena... (Budget: $20 - $50 USD, Jobs: 3D Design, 3D Modelling, 3D Rendering, CAD/CAM, Electronics, Instructional Design, Mechanical Engineering, Robotics, Robotics and Cognitive Automation, Solidworks)

My custom 4G board is built around a SIMCom A7672 Lase cellular module, and every subsystem except the analog microphone path is behaving. A standard two-wire electret mic that records perfectly on other hardware gives absolutely no audio input once it is connected to the SIMCom pins on this PCB... (Budget: ₹1500 - ₹12500 INR, Jobs: Arduino, Audio Engineering, Circuit Design, Electronics, Microcontroller, PCB Layout, Schematic Review, Troubleshooting)

I need a freelancer to create an interface with Arduino to control the pan and tilt of a Sony camera for object tracking. Requirements: - Control pan and tilt motions - Interface to be powered via USB... (Budget: €12 - €18 EUR, Jobs: Arduino, C Programming, Electronics, Embedded Systems, Microcontroller, Object Detection, Programming, Robotics)

I am building a compact, all-in-one controller board that can sit at the heart of an industrial IoT node. The PCB must interface with temperature probes and a 4-20 mA pressure loop while offering plenty of headroom—around 10 – 15 relay outputs at a minimum... (Budget: $250 - $750 USD, Jobs: Circuit Design, Documentation, Edge Computing, Electronics, Embedded Systems, Home Automation, Linux, Microcontroller, Mobile App Development, MQTT)

I am rolling out a KNX / Loxone-based smart-home project and need an engineer who can take it from concept to working code. I already have basic architectural sketches; what I am missing are proper engineering... (Budget: $250 - $750 USD, Jobs: AutoCAD, CAD/CAM, Design Optimization, Electrical Engineering, Electronics, Home Automation, Project Management, Solidworks, Technical Documentation)

I'm seeking an experienced industrial automation engineer to work hands-on in the semiconductor industry. The focus will be on integrating both legacy and modern PLC systems. Key Responsibilities: - System Installation: Set up new PLC systems... (Budget: $1500 - $3000 SGD, Jobs: Automation, Electrical Engineering, Electronics, Engineering, Network Administration, PLC, Process Automation, Semiconductor, Troubleshooting)

I'm looking for a tachometer to measure rotational speed from a motor's rotor using an ESP32 and TCRT5000 IR sensor. The speed data should be transmitted over MQTT to a public website. Requirements: -... (Budget: ₹600 - ₹1500 INR, Jobs: API Integration, Automation, Cloud Computing, Data Visualization, Electronics, Embedded Systems, Internet of Things (IoT), MQTT, Web Development)

I’m building a low-cost solution that proves every drop from a drip line reaches the roots. An Arduino at the field edge will poll soil-moisture, flow, and pressure sensors; a Raspberry Pi in the control... (Budget: $250 - $750 USD, Jobs: Arduino, Data Visualization, Electronics, Embedded Systems, MQTT, Python, Raspberry Pi)

I'm seeking a skilled coder to develop software for the MAX17055 Integrated Circuit (IC) to enhance my project. The code should enable the IC to perform battery level monitoring, power management, and data logging... (Budget: ₹1500 - ₹12500 INR, Jobs: Arduino, C++ Programming, Electrical Engineering, Electronics, Embedded Systems, I2C, Microcontroller, Software Development)

I’m working on a countertop appliance that does for cooling what a microwave does for heating: it must take a pot-hot, family-size portion of food and drop its temperature to safe refrigeration levels in just a few minutes... (Budget: $15 - $25 USD, Jobs: Electrical Engineering, Electronics, Engineering, Mechanical Engineering, Rapid Prototyping, Thermal Analysis)

I'm seeking comprehensive design files for a Smart Watch, including: - Bill of Materials (BOM) - Schematics - PCB Gerber files - Mechanical design files (CAD/STEP) The design should ideally meet the following specifications: 1... (Budget: €250 - €750 EUR, Jobs: 3D Design, 3D Modelling, Bill of Materials (BOM) Analysis, CAD/CAM, Electronic Design, Electronics, Mechanical Design, PCB Design and Layout, PCB Layout, Product Design)

My laser receiver PCB currently suffers from persistent electrical interference that is masking the very faint optical signals I need to measure. The circuit uses a photodiode front-end followed by a transimpedance... (Budget: ₹12500 - ₹37500 INR, Jobs: Altium Designer, Analog Electronics, Circuit Design, Electrical Engineering, Electronics, PCB Layout, Schematic Review, Signal Processing)

I need a professional to assist with the startup of a 378 kW low voltage induction motor using a soft starter. Key Requirements: - Experience with induction motors and soft starters - Knowledge of low... (Budget: $250 - $750 USD, Jobs: Automation, Electrical Engineering, Electronics, Engineering, Motor Control, Troubleshooting, Wireless)

I'm looking for an experienced developer to create an expressive robot using ESP32 NodeMCU and various sensors. The bot should be able to display the following emotions: Happy, Sad, Angry, Neutral, and Sleepy... (Budget: ₹1500 - ₹12500 INR, Jobs: Arduino, C Programming, Electronics, Embedded Systems, Microcontroller, Programming, Prototyping, Robotics)

I'm looking for an experienced developer to create an expressive robot using ESP32 NodeMCU and various sensors. The bot should be able to display the following emotions: Happy, Sad, Angry, Neutral, and Sleepy... (Budget: ₹100 - ₹400 INR, Jobs: Arduino, C Programming, Electronics, Embedded Systems, Microcontroller, Programming, Prototyping, Robotics)