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    10 trabajos encontrados

    I have completed the schematic for a double-layer PCB that mixes classic passives with several microcontrollers, ICs, and a handful of sensor-based inputs and actuators. Before I commit to board layout, I want a fresh set of expert eyes on every net. What I need from you • Check the wiring of every single component—no floating pins, duplicated nets, or mismatched footprints. • Run signal-integrity analysis on the higher-speed traces coming out of the microcontrollers and ICs. • Perform a power-distribution review, confirming that each rail can deliver the required current and that decoupling is properly placed. Preferred tools are Altium Designer or KiCad, but I can export to most common formats if that helps you work faster. Deliverables 1. An annotated v...

    $13 Average bid
    $13 Oferta promedio
    8 ofertas

    About SOILO SOILO is an Indian agri-tech company developing portable soil testing devices for agricultural applications. We are expanding our products into Namibia and are looking for a reliable local electronics technician/service partner. What we need We are looking for a technician or small electronics service company based in Namibia, preferably in or around Windhoek, who can provide local repair and warranty support for our devices. Expected work includes: Electronics/device diagnostics PCB troubleshooting Component-level repair where possible Display replacement Battery/charging system replacement ESP32/electronic module troubleshooting RS485/communication troubleshooting Connector/wiring repairs Sensor-related troubleshooting Firmware/basic configuration support where applicabl...

    $9 / hr Average bid
    $9 / hr Oferta promedio
    5 ofertas

    I want to turn the idea of a small “follow me” car into a working indoor prototype I can use at home. It should quietly track and follow a person around flat floors, weave through doorways or hallways, and stop safely when I stop. Because it is for personal use on smooth indoor surfaces, size and noise matter more to me than ruggedness or high speed. Here’s what I need from you: • Select or design a compact chassis, drive train, and battery that can run at least 30 minutes on a single charge. • Recommend and integrate the sensing stack—camera, ultrasonic, LiDAR, Bluetooth beacon, or any mix you believe best balances accuracy and cost—for reliable human-following and basic obstacle avoidance indoors. • Write the control firmware / software...

    $10 Average bid
    $10 Oferta promedio
    12 ofertas

    I'm seeking an experienced hardware designer to create a compact TPMS (Tire Pressure Monitoring System) chip that monitors both pressure and temperature for motorcycles. Key Requirements: - Monitor both tire pressure and temperature - Designed specifically for motorcycles - Should be compact Ideal Skills and Experience: - Expertise in chip design, specifically for monitoring systems - Experience with motorcycle electronics - Ability to design compact, efficient hardware Looking for someone with a proven track record in similar projects.

    $125 Average bid
    $125 Oferta promedio
    9 ofertas

    I want to automate the filling of an overhead storage tank with a compact microcontroller-based solution. The unit should sense the water level in the tank, trigger the pump when the level drops below a defined threshold, and shut the pump off once the tank is full. I am using a standard overhead tank fed by a single pump from ground level. You’re free to recommend the most reliable sensing method—, or conductive—so long as it performs accurately in typical domestic water conditions and can be serviced easily if something fails. The design must include: • A microcontroller (Arduino, ESP32, or comparable) with clearly commented firmware. • A driver stage capable of switching a 1 HP single-phase pump safely. • Manual override for both pump ON and OFF. ...

    $79 Average bid
    $79 Oferta promedio
    40 ofertas

    I am building a compact embedded solution whose main role is to act as a communication system for live environmental monitoring. The unit must read temperature, humidity, air-quality indices, and soil-moisture levels, then push those readings reliably to a remote endpoint in real time. Here is what I need from you: • Hardware design: sensor selection, schematic, and PCB layout sized for low-power field deployment. • Firmware: driver code for the temperature & humidity, air-quality, and soil-moisture sensors, along with a lightweight stack that formats the data and handles wireless transmission. I have no fixed protocol in mind, so you may propose BLE, LoRa, Wi-Fi, or another option that balances range and power. • Data communication workflow: sample rate configura...

    $10 / hr Average bid
    $10 / hr Oferta promedio
    14 ofertas

    I want to build a small, stand-alone demo that lets a user push a virtual anaesthesia syringe and physically feel the changing resistance as the needle travels through skin, fat, muscle and finally bone. The visual scene only needs moderate polygon detail, yet the tissue layers themselves must carry realistic PBR textures so the transition between layers is clear on screen and through touch.. The haptic side is critical. We have to design our own 1 DOF haptic device for the syringe with motor and sensor setup (it isn’t a Novint Falcon or SensAble Phantom). The freelancer will handle everything from motor design, sensor integration to development. I also need all source code to translate depth in the mesh into force cues in real time. A simple calibration panel and a plain-text file ...

    $166 Average bid
    $166 Oferta promedio
    5 ofertas

    We are looking for an experienced freelance Embedded Hardware + PCB + Firmware Engineer for an IoT/industrial electronics project. Location: Kolkata preferred Required hands-on experience: • STM32 Nucleo / Discovery boards • Embedded C/C++ and STM32 firmware • UART / USART / RS485 / Modbus RTU • USB-to-RS485 & UART-to-RS485 • GSM / 4G / LTE modules and AT commands • PCB schematic & layout – KiCad / Altium / Eagle / EasyEDA • Component selection & BOM preparation • Power supply and protection circuits • Logic analyzer / oscilloscope / multimeter • PCB bring-up, debugging and hardware testing • Sensor and industrial interface integration • ADC / 4–20mA / 0–2V interfaces Good to have: ESP32, MQTT, Lo...

    $123 Average bid
    $123 Oferta promedio
    13 ofertas

    I'm seeking an experienced IoT developer who can create a hardware device with a digital display. The device should operate offline, providing straight output based on programmed inputs. Key Requirements: - Hardware: - Digital display output - Programmed to do calculation. - App: - Display input data and calculations from the hardware - User-friendly interface Ideal Skills: - Experience in IoT hardware development - Proficiency in app development - Strong programming skills - Ability to create offline operating systems Please provide examples of previous work and a brief outline of your approach.

    $647 Average bid
    $647 Oferta promedio
    26 ofertas
    Chemical Dosing Skid P&IDs
    1 día left
    Verificado

    1. Project Overview & Objective The objective is to perform a rigorous peer review and technical validation of process P&IDs for a multi-component chemical processing and fluid handling skid prior to final CAD updates and fabrication release. The review ensures process safety, fluid mechanics integrity, correct sensor positioning, functional control logic representation, and alignment with ISA-5.1 drafting standards. 2. Scope of Work & Review Tasks Process & Mechanical Validation: Verify line sizing, flow direction, fluid velocity limits, and material compatibility for piping, tubing, seals, and valving. Validate pump suction/discharge arrangements, check valve locations, back-pressure regulators, manual isolation boundaries, and sample/drain points. Confirm over-press...

    $337 Average bid
    $337 Oferta promedio
    32 ofertas

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