Mikrokontroller Jobs

I need a dependable driver or courier who can collect boxed electronics from a retail store and get them safely to my specified U.S. destination. The units are not considered fragile, so no special packing is required beyond standard care, but I still expect careful handling and prompt delivery. You will receive the exact store address, order reference, and recipient details once we agree. Please confirm estimated transit time, the type of vehicle you’ll use, and how you’ll provide real-time status updates or proof of delivery. If you already run a regular route, let me know; flexible scheduling or multiple drops could be arranged later.

We are seeking an experienced PLC and motion control engineer to develop the complete automation and control software for our proprietary machine. The machine consists of multiple synchronized modules, including spool unwinding, dancer tension control, load-cell-based web tension control, color-mark registration, garniture forming, gluing, IR-based polishing, flying cutting using electronic camming, and finished straw collection. The overall process flow, control philosophy, I/O list, and bill of materials are documented in our technical specification and will be shared once signing an NDA. The system is based on MOONS' Industries hardware, including the MCA6-10-0808N Motion PLC, EtherCAT servo drives, stepper drives, HMI, digital and analog I/O modules. The application involves 10 m...

I’m looking to refactor and extend the existing firmware that drives my Model B Dry Bath Incubator. The current code is functional but suffers from imprecise temperature regulation, a clunky front-panel interface, and no way to capture run data. Your brief is to take the present source, retain the working foundations, and inject three clear improvements: • Sharpen temperature-control accuracy to lab-grade stability across the full operating range • Modernise the user interface so set-points, timers, and alarms are easier to read and adjust • Build in robust data-logging (on-board memory with optional USB or serial offload) I’ll supply the current firmware, circuit diagrams, and remote access to a test unit. Please work in C/C++ (or the original embedded lan...

I’m building a real-time monitoring device around the Raspberry Pi Pico (RP2040) and need a robust, industrial-grade PCB that keeps everything tight and reliable. Although extra features like extensive data logging or remote control may follow later, the immediate goal is a rock-solid board that can sit inside a control cabinet and survive 24 V environments. Core functionality to integrate • Ethernet via W5500 • RS-485 transceiver with screw-terminal access • 24 V DC input stepped down to stable 5 V/3.3 V rails • UART header, status LEDs and an onboard RJ-45 connector Design constraints • Compact footprint is important; help me keep the enclosure slim. • Proper grounding, controlled-impedance Ethernet routing and neat separation of digital/an...

1. Main Controller • The board’s main controller will be a microcontroller from the Teensy 4.0 class. It must have sufficient processing speed and GPIO capacity. 2. Integrated ESC • The board will feature a built-in ESC for driving a brushless starter motor. • It must support a current capacity of ≥40A. • The ESC will be powered by a 3S-4S battery. (Minimum 11.1–14.4 V, Maximum 12.6–16.8 V) • The necessary protection and secure signal connections must be provided between the motor driver and the controller. 3. Glow Plug Output • The board will include a power switching output for the glow plug. • It must support a current capacity of ≥16A. • On/Off control is sufficient. • The glow plug will be powered by 3S or 4S volt...

I need complete, well-commented source files that implement a DMA­-based firmware routine focused on custom data processing memory-to-memory transfer.

Project Overview STM32-based automotive signal and load emulation module. Main goals: - Generate 4 independent 5V PWM outputs at fixed frequency (200 Hz) - Configurable duty-cycle tables - React to simple 12V trigger inputs - Drive separate MOSFET-controlled dummy loads to emulate resistive/inductive automotive actuators - Include basic thermal and protection monitoring Please provide: 1. Clean and well-commented STM32 firmware (STM32CubeIDE, HAL or LL) 2. Schematic including: - 4 PWM outputs - level shifting to 5V - MOSFET load stages - protection components - programming header 3. Basic BOM 4. Short setup guide explaining: - how to adjust PWM duty tables - how to modify PWM frequency - how to recompile firmware Optional: - Compact 2-layer PCB layout (KiCad or...

I need a PCB design for an Arduino car interface. The interface will connect to various sensors, primarily temperature sensors, and will manage indicator lights. Key requirements include: - Connection for temperature sensors and car indicator lights - Functionality to monitor car temperature, control indicator lights, and provide an alert system for overheating Ideal skills and experience: - Proficiency in PCB design - Experience with Arduino integrations - Knowledge of sensor interfacing and automotive systems

We are seeking experienced hardware and firmware engineers to collaborate on developing a prototype for a smart water management device. The hardware engineer will be responsible for delivering component specifications, schematics, and ideally a proof-of-concept (PoC) device. Alternatively, they may provide detailed instructions for purchasing the required hardware components. The firmware engineer will deliver the firmware code to be installed on the device for integration testing. The project must be completed within 1-2 months. Ideal candidates should have expertise in smart water systems engineering and related technologies.

The concept is already mapped out on paper; now it needs to become a functional mixed prototype that blends physical components with companion software. I will share diagrams and use-case notes that spell out the user journey, required interactions, and performance targets. Hardware scope – Translate my schematics into a breadboard or printed-circuit proof-of-concept. – Select and integrate the most appropriate sensors, microcontrollers, and actuators (open to your recommendations on exact parts). – Provide wiring diagrams and a concise bill of materials so the build can be reproduced. Software scope – Create the firmware or embedded code needed to run the hardware. – Build a lightweight application layer—this may cover data processing, a...

I already have a custom board built around an ESP32-D, the accompanying PlatformIO project, and fully working low-level drivers for Wi-Fi, MQTT, GPIO and storage. What I still need is the high-level logic that ties everything together so the device behaves like an intelligent Wi-Fi switch. Here is what the finished sketch must do: • Subscribe to a dedicated MQTT topic and parse the JSON commands coming from my mobile app. • Execute each command immediately, switching the relay output on or off and publishing an acknowledgement with a timestamp. • Monitor the on-board push-button; every manual activation should be time-stamped, stored locally, and later pushed to the same MQTT broker so that no event is ever lost if the connection drops. • Run both daily and week...

Estoy desarrollando un prototipo IoT de bajo consumo para un vertedor inteligente de bebidas y busco un ingeniero embedded/freelance con experiencia práctica en Nordic Semiconductor nRF52 y Bluetooth Low Energy. El objetivo del prototipo es detectar cada servido de una botella mediante un reed switch activado por un imán colocado en la tapita abatible del vertedor. Cada vez que el reed switch se active, el microcontrolador debe enviar automáticamente un evento BLE con un ID único del vertedor hacia un dongle nRF52840 PCA10059 conectado a una computadora, que funcionará como hub/receptor. No busco una empresa grande ni una solución sobredimensionada. Busco un especialista técnico que pueda llevar el prototipo a una prueba funcional, documen...

Design a early proof-of-concept compact wearable electronics system suitable for PCB manufacturing and assembly. I am developing an early-stage wearable prototype that detects and communicates nervous system activation and am looking for an experienced electronics engineer to design a compact wrist-wearable PCB prototype. This is a proof-of-concept prototype, not a regulated medical device. The device will: • collect physiological sensor data • detect stress-related changes • provide simple feedback to the wearer The prototype is currently based on an ESP32 platform, though alternative low-power microcontrollers may be suggested if appropriate. ________________________________________ Scope Design and prototype a compact wearable electronics system suitable for integrat...

Our processing line needs a reliable counting routine, written in CODESYS, that records the exact number of chickens immediately after slaughtering. At the moment that figure is taken manually and is rarely accurate; I want the PLC to take over so the plant can trace throughput in real-time and feed the data to our existing SCADA screen. The job is focused on one task only: IFM based system to count poultry legs and report daily a total amount of processed birds entering the system. * Sensor to be mounted within the main running line of the Auto cut line positioned post hang on (left of the green personal) * 2 counts to equal 1 bird count * IP rating to be 68 or above for hygiene washdown areas * System to be able to be reset every day via a button that operators can reset * Wiring to be ...

Our product runs on a custom embedded system and it now needs a dedicated firmware module that can handle all UART-based communication. I already have the hardware schematic and register map; what is missing is production-ready code that initializes the peripherals, manages interrupts, frames the data, and exposes a clean API the application layer can call. Here is what I need from you: • Develop clean, well-documented firmware in C or C++ that brings up the MCU, configures the UART peripheral, and implements reliable transmit/receive routines (including error handling and buffering). • Follow our existing coding conventions and keep the footprint small so power consumption stays within spec; DMA or low-power sleep modes are welcome where appropriate. • Provide a conci...

I need a complete PCB design for a 15W Qi-compliant wireless charging transmitter. The board will be powered from a USB-C input and must expose simple 5V positive and negative connections that become live only while a device is actively charging. Please let me know your expected turnaround and any questions you need answered before you start.

I am developing a wall/desk-mounted NFC clock in / out system. I already have a working prototype and firmware completed using Arduino IDE on ESP32. I now want a professionally designed integrated PCB and simple 3D printable enclosure suitable for low-cost manufacturing through JLCPCB PCBA. Main requirements: Integrated ESP32 module (ESP32-WROOM preferred) USB-C for power + programming WiFi required MFRC522 RFID/NFC support over SPI 16x2 I2C LCD support 4 navigation buttons 2 status LEDs Active buzzer Fully integrated PCB (no ESP32 dev board or jumper wires) JLCPCB/JLCPCB PCBA compatible Reliable design suitable for production Important: I already have working firmware completed GPIO compatibility with existing firmware is preferred Cost optimisation is very important Open to professio...

Freelance Embedded Firmware Engineer – MSP430 Expert Required We are seeking a highly experienced embedded firmware engineer with strong expertise in the Texas Instruments MSP430 microcontroller platform for a professional product development project. This role is strictly for engineers with proven hands-on MSP430 experience. Please do not apply if your experience is only with Arduino, ESP32, STM32 basics, or hobby-level embedded development. Project Scope: 1. The selected freelancer will work on firmware development, debugging, optimization, and hardware interfacing for an MSP430-based embedded system. 2. The hardware setup has to be accessed remotely. Applicants must be comfortable working in a remote embedded development workflow. Experience with: 1. Bare-metal firmware develo...

I need an electronic tea brewing kettle designed with specific features. Essential Features: - Temperature Control: Ability to set a specific brewing temperature. - Custom Temperature Settings: User-defined temperatures. Preferred Adjustment Method: - Touchscreen Interface: Intuitive, user-friendly control. Ideal Skills and Experience: - Experience in designing electronic appliances. - Proficiency in touchscreen interface technology. - Knowledge of temperature control mechanisms. Looking for innovative designs and practical solutions.

I’m building a small Alpha-ISA processor model and now need the core pieces of the execution engine completed. The focus is on a clean, software-driven control path rather than a hardwired or micro-coded approach, so the design has to expose control signals that a supervisory program can schedule and manipulate. The hardware side must include: • ALU that supports the usual arithmetic and logical functions with status outputs ready for branching logic • Register File with dual-read / single-write ports, parameterisable depth, and a simple hazard-free write-back mechanism • Instruction Decoder that converts the Alpha binary format into the internal control signal set expected by the software controller Multiplexer and control unit I’m happy for you to implem...

I need an experienced PLC programmer to troubleshoot an existing Omron CP1E PLC program. The system exhibits unexpected behavior during startup and fails to progress beyond step 5. Key Requirements: - Diagnose and fix unexpected startup issues - Familiarity with Omron CP1E and its programming - Experience in resolving logic and communication errors Ideal Skills: - Proficient in PLC programming and troubleshooting - Strong understanding of Omron PLC systems - Problem-solving skills for industrial automation Please provide relevant experience in your bids.

I am looking for a freelancer to help integrate LED lights into both the fretboard and body of a guitar. The LED system should be programmable via software, specifically for the Windows platform. Ideal candidates should have experience with electronics, LED programming, and creating software-compatible systems. The guitar also has other electrical devices in it as well. the system uses addressable RGB LEDs including flexible PCB LEDs, COB LEDs. the project will require CNC machine work for body of guitar including molded diffusion channels. It has internal controller board like raspberry pi. It will require diffusion layer/translucent top layer. Designs available for viewing. Let’s bring this musical project to life!

I’m working with a Keyestudio KS4070 4-wheel Bluetooth car that my daughter assembled, but the current sketch isn’t doing what it should. With its line-tracking module, ultrasonic range sensor, and infrared receiver all wired in and verified, the car still refuses to: • stay on the black line, • swerve around any obstacle in its path, and • pause precisely at programmed checkpoints. I need a clean, well-commented Arduino sketch delivered today that makes those three behaviours rock-solid. Please structure the code into clear functions for line detection, obstacle avoidance, and stop-point handling so future tweaks are easy. Serial-print debug messages are welcome but keep them toggle-able with a macro or flag. Acceptance criteria • Upload sketch, ...

I’m adding a green LED to my vending machine controller and need clear, no-nonsense guidance to finish the job. The LED will sit on pin 15, running at the standard 3.3 V GPIO level, and must glow steadily whenever my existing “vending _enabled” Boolean is true, switching off the instant the flag is false. I already know the resistor value, so no calculations are required there. What I need from you: • A simple wiring diagram showing pin 15, the series resistor, LED orientation, and ground return. • Confirmation that the selected pin can source the required current and, if not, the minimal code tweak or wiring change needed. • A clean, drop-in Python snippet written for either or gpiozero (your choice, just keep it concise) that exposes a function lik...

Estou desenvolvendo um wearable focado em alertas inteligentes de monitoramento de atividades e preciso de um especialista em eletrônica embarcada para transformar o conceito em um protótipo funcional. A plataforma base deverá girar em torno de um ESP32 (ou equivalente) alimentado por bateria recarregável, operando com baixo consumo e oferecendo conectividade Bluetooth e Wi-Fi para sincronização de dados e atualizações remotas. O hardware terá, obrigatoriamente, um sensor de contato com água; caso você considere útil adicionar acelerômetro, sensor de frequência cardíaca ou outros módulos, podemos discutir durante a fase de arquitetura. Também valorizo soluções q...

Project overview We are building a smart IoT electricity monitoring device for a Kenyan prepaid energy management platform. The device must read real-time electrical parameters — including current, voltage, and power consumption — and transmit that data wirelessly to a cloud API. The engineer will be responsible for both the hardware circuit design and the Arduino firmware, from prototype to a working demo unit. Core deliverables Working hardware prototype using Arduino (Uno/Mega/Nano) with CT sensor or ACS712 current sensor and ZMPT101B voltage sensor Firmware that measures voltage (V), current (A), real power (W), and energy consumed (kWh) at defined intervals Wireless data transmission via ESP8266 / ESP32 WiFi module to a REST API endpoint (JSON payload over HTTPS) Full sc...

I’m ready to move one of our production processes onto a fully automated platform and need an experienced PLC specialist to make it happen. This is an industrial environment, so reliability, clear documentation, and compliance with plant standards are non-negotiable. You’ll start by reviewing the existing manual workflow with me, then design a PLC-based control strategy that keeps safety interlocks front and centre while maximising cycle time. Once we agree on the architecture, I’ll rely on you for ladder (or structured-text) programming, selection of field I/O, panel layout guidance, and all supporting wiring diagrams. If you’re comfortable integrating HMIs or tying the PLC into our existing SCADA via Modbus or EtherNet/IP, even better—the goal is a seamless...

I have an ESP32 Basic Core IoT Development Kit V2.7 installed in my truck and need firmware that will warn me whenever the Starlink router stays powered after I switch the ignition off. The sketch should watch a dedicated ignition-sense pin: while the line is high the unit does nothing special, but as soon as it goes low it must keep polling the Wi-Fi connection status in code. If the ESP32 is still associated with any network after a user configurable amount of time, an on-board LED must begin to flash, screen starts flashing and the internal speaker must chirp in tandem until the Wi-Fi link drops or the ignition is restored. I would like a simple LCD screen interface on the kit’s I²C display that shows real-time states (“Ignition ON / OFF”, “Wi-Fi CONNECT...

I aim to develop a solution that will facilitate data communication between an Arduino UNO and a SIM7600E using AT+COMMAND. The primary data in focus will be temperature sensor readings. Key Responsibilities: - Setting up a reliable connection between Arduino UNO and SIM7600E - Implement AT+COMMAND for effective communication - Design a protocol for transmitting temperature sensor data Ideal Skills: - Solid knowledge of Arduino - Proficiency in handling SIM7600E - Experience in implementing AT+COMMAND - Understanding of sensor data transmissions. Please ensure you can efficiently deliver on these requirements, and provide the mentioned sensor data communication before placing your bid.