Microcontroller Jobs

Project: Smart Device Health Monitoring Unit Project Objective: Develop an embedded device that monitors the health of 3-5 connected devices, displays status locally, stores events, and reports alarms to a server. Technologies Used, Embedded C Linux-based Embedded Systems UART SPI I2C Ethernet/Wi-Fi OLED Module SD Card Module LED Buzzer Summary: - The Smart Device Health Monitoring Unit is an embedded systems project designed to monitor the operational status and health of multiple connected devices through UART communication. The controller periodically polls each device, detects communication failures, displays system status and alarms on an OLED screen, and stores important events in an SD card for future analysis. In case of a device fault or communication timeout, the system gener...

I need a working prototype that lets me monitor a single-car residential parking spot without running any wiring. The concept is simple: • Hardware: a custom ESP32 board that combines LoRa radio, BLE, and a low-power magnetic (Hall-effect) sensor. It will spend almost all of its life in deep-sleep on two AA batteries and wake only when a car enters, exits, or moves. On every wake-up it must stamp the event with time, append the car’s BLE ID, and shoot that packet over LoRa. • Gateway: a battery-operated LoRa gateway that forwards incoming packets to my home Wi-Fi and then to a mobile or web endpoint of my choice (MQTT, REST, or similar). The key technical goals are extreme power efficiency, reliable car-only detection, and end-to-end message delivery you can demonstrate ...

We are seeking a Senior Embedded Firmware Engineer or Small Embedded Systems Team to extend and integrate an existing commercial embedded firmware platform for a new hardware revision. This is not a greenfield project. The successful candidate will work with an established embedded C firmware platform and will be responsible for understanding the existing architecture, implementing support for new hardware, integrating new functionality, and delivering production-quality firmware. Responsibilities: Review and understand an existing embedded firmware codebase. Develop and integrate firmware for new hardware components. Implement and debug embedded firmware. Work with RTOS-based embedded systems. Develop and maintain communication interfaces including SPI, I²C, UART/RS-422, and E...

I already have a two-screen interface finished in Squareline for my ESP32-CYD based nervoscope. All component IDs and events are set; what I am missing is the Arduino IDE firmware that brings it to life. Main screen • Shows battery level (%) • Rotates a gauge needle toward whichever of the two RTD probes reports the higher temperature Settings screen • Slider-controlled probe/needle sensitivity • Dark / light theme toggle • Information panel toggle • Screen-brightness control • Temperature unit toggle with Celsius as the default • Sleep-timeout selection Your task 1. Import the finished Squareline project, wire it to LVGL (or the display library you prefer) and produce a clean, well-commented .ino sketch. 2. Read both RTD sensor...

I'm developing a robotics application and need expertise in integrating solenoids, servo motors, and sensors. These components are critical for the actuation mechanisms in my project. Key Requirements: - Design and implement control systems using solenoids and servo motors. - Integrate sensors for feedback and precision. - Actuate mechanisms reliably and accurately. Ideal Skills and Experience: - Background in robotics and automation. - Proficiency in electronics and control systems. - Experience with sensors and actuator integration. Looking for a detailed proposal with relevant experience. It's for a personal project, It will have about 3 motors, 2 solenoids

I need a full-stack hardware designer to turn my concept into a manufacturable prototype board built around Rockchip’s RV1126B. The board must carry 2 GB LPDDR4X, a 32 GB eMMC, microSD slot, on-module Wi-Fi/Bluetooth, and a MIPI-DSI connector that will drive a touch display used strictly for user interface and control. Because this is a prototyping/testing build, I am happy to iterate, but the first revision should already be hand-solderable or assembly-ready at common fabs. Key integrations • Two USB 2.0 ports will each host an external Wi-Fi video receiver; please validate bandwidth and power budgets. • An existing STM32F405-based SkyBrain RC subsystem must be brought onto the same PCB (or docked through a high-speed mezzanine) so every one of its functions—...

Project: Design a lightweight, child‑friendly casing with a simple motorized tilt mechanism. The casing will hold a smartphone and an ESP32 module. Scope: Create a design that includes: A soft, child‑safe outer casing Adjustable phone holder (multiple phone sizes) Motorized forward/back tilt using max two micro servos Internal placement for ESP32, battery, and wiring Lightweight construction (target weight range provided after selection) Requirements: Experience designing small consumer devices or toys Ability to create concept sketches, technical drawings, and 3D models Understanding of servo‑based hinge mechanisms Familiarity with designing for child safety and ergonomic handling Ability to iterate collaboratively Deliverables: Concept sketches Technical drawings with measurements...

I have a Particle Boron development board and would like to create a compact proof-of-concept monitoring system using two reed switches and a split-core current transformer (CT). The device should continuously monitor the sensors and automatically send an SMS notification to my phone whenever either reed switch changes state or the measured current exceeds or falls below configurable threshold values. The firmware should be developed for Particle Device OS and include cellular SMS functionality. Each alert message should report the current status of both reed switches, the real-time current measurement from the CT sensor, and the exact timestamp when the event occurred. I would also appreciate assistance in determining and configuring appropriate threshold values for both the reed switch ...

I need a compact, battery-powered hour meter that bolts onto a piece of marine equipment, connects to the boat’s Wi-Fi, and silently counts every minute the engine runs. Beyond simple hour logging, it must also sample and report its own battery voltage so I can tell when the internal cell is getting low. The device should push both data points—total run-time and current battery level—to a cloud endpoint I’ll expose. I plan to read everything from a web-based remote dashboard, so no on-device screen is required. An LED or brief buzzer chirp during initial pairing is fine, but the unit will spend most of its life sealed in a damp engine bay. Reliability and low standby draw are therefore critical. Please deliver: • Hardware schematic and bill of materials...

Developer Required – Visual Positioning System (VPS) for UAVs We are looking for an experienced Computer Vision / AI / Embedded Systems Developer to help us build a Visual Positioning System (VPS) for UAVs and drones. The initial prototype will be developed using NVIDIA Jetson Nano + Camera, with the goal of creating a robust visual navigation system for challenging GPS/GNSS environments. Required Skills * Python / C++ * OpenCV * Computer Vision * NVIDIA Jetson Nano * Optical Flow * Visual-Inertial Odometry (VIO) * SLAM * IMU / Sensor Fusion * ArduPilot / PX4 * MAVLink * UAV / Drone Systems * Linux / Embedded Systems Project Scope * Camera-based visual positioning * Optical Flow implementation * Camera + IMU fusion * VIO development * Real-time position and velocity estima...

I’m developing a microcontroller-based embedded system that will sit inside a vehicle (horn-relay) and act as the central hub for sensor integration and data acquisition. The core of the job is full-cycle design and development: selecting the right MCU family, creating the schematic and PCB layout, writing the firmware, and validating that the board reliably collects, timestamps, and streams data from the relay connectivity Hands-on experience in both embedded C/C++ and practical electrical or automotive environments is essential because the design must stand up to temperature, vibration, and EMI constraints found in vehicles. Familiarity with CAN, LIN, or similar in-vehicle networks is a plus; the final board will need to forward selected sensor packets to the main ECU. Deliverabl...

The goal is to turn an Arduino into reliable timing equipment for track-day cars. I already know the core requirement: precise lap timing triggered by track-side sensors, with each lap time shown live on an attached LCD screen so drivers can see their results as they pass the pit wall. What I need coded is: • Accurate capture of a start/finish trigger (IR beam, magnetic reed, or similar—happy to follow your recommendation) • Millisecond-level lap calculation that stores the current lap, previous lap, and best lap in memory • Real-time display of those three values on a 16×2 (or comparable) LCD; the screen should auto-update as each new lap registers • Simple push-button reset to clear the session without rebooting the board Deliverables: 1. Clean, well-com...

I’m building a small IoT device around an ESP32 and need concise, well-structured firmware that brings reliable WiFi connectivity online. The goal is straightforward: power up, join a predefined network (with fallback smart-config or captive portal for first-time setup), then expose a simple REST or MQTT interface so the rest of my stack can push and pull data. The code may be written in either the ESP-IDF or Arduino framework—whichever you’re most productive with—as long as it’s cleanly commented and easy for me to compile and flash from macOS. I will provide the SSID, credentials, and endpoint details once we start. Deliverables • Source code and project files • Brief README covering build steps, pin assignments (if any), and how to change Wi...

I need a custom-built RFID reader that can reliably pick up standard identification tags in an outdoor setting. The enclosure must withstand sun, rain, and an occasional hose-down while still offering stable read range and low error rates. At this stage I am open about the operating band—LF, HF, or UHF—so long as we can balance range, power consumption, and tag cost. I expect us to discuss the trade-offs early and lock the decision in before PCB layout begins. Here is how I see the work flowing: • Electronic design—from antenna matching through to the microcontroller or SoC that will parse tag IDs and forward them over a simple UART, USB, or Ethernet interface. • Firmware—clean, documented C/C++ code (Arduino, ESP-IDF, or a bare-metal toolchain is fin...

I need a working prototype of a portable SIM-bonding unit that merges multiple 4G LTE links to deliver a single, higher-bandwidth connection and tunnels all traffic through an IPSec VPN. Scope of work • Hardware: board design, enclosure, integrated high-gain antenna, SIM tray/slots (minimum 4), battery and power-management circuitry. • Firmware: real-time link aggregation logic, automatic cell reselection, fail-over, IPSec client with configurable policies, and a simple captive portal or serial console for first-time setup. • Management software: web UI plus optional CLI/REST API to show bonded throughput, per-SIM stats, signal strength and VPN status, with secure remote firmware-upgrade capability. • Documentation: schematics, BOM, mechanical drawings, firmw...

Design an industrial grade carrier board for Raspberry Pi Compute Module 5 (CM5) and Gigabit Ethernet Switch with 24VDC as main power supply. The board should support ●  Raspberry Pi CM5 ●  Camera integration with CSI ports ●  Brainboxes PE-515 Embedded Gigabit Ethernet Switch ●  24 VDC industrial power input ●  Industrial operation and future expansion The attached document describes the system in detail.

The goal is to turn an Arduino into reliable timing equipment for track-day cars. I already know the core requirement: precise lap timing triggered by track-side sensors, with each lap time shown live on an attached LCD screen so drivers can see their results as they pass the pit wall. What I need coded is: • Accurate capture of a start/finish trigger (IR beam, magnetic reed, or similar—happy to follow your recommendation) • Millisecond-level lap calculation that stores the current lap, previous lap, and best lap in memory • Real-time display of those three values on a 16×2 (or comparable) LCD; the screen should auto-update as each new lap registers • Simple push-button reset to clear the session without rebooting the board Deliverables: 1. Clean...

I’m building a smart blind stick powered by Arduino that combines GSM and GPS. The core goals are straightforward: give real-time location tracking through GPS navigation and trigger an emergency alert whenever the user presses a panic button or the stick detects an unsafe situation. The alert must be sent over GSM as an SMS that includes live coordinates so a caregiver can locate the user immediately. Here is what I need from you: • Complete, well-commented Arduino code that integrates a GPS module for continuous position updates and a GSM module for outbound SMS alerts. • Circuit schematic (Fritzing or similar) showing all connections—microcontroller, GPS, GSM, power regulation, and tactile buttons/buzzers. • A concise bill of materials with part numbers...

I’m putting together a compact communications board and need a full PCB design that integrates every piece of the hardware listed below into one reliable, battery-backed solution. Core parts to place • RP2350 MCU • LoRa2021F33-2G4: 2W High-Power, High-Speed Multi-Band LR2021 Wireless Communication Module Additional board on hat to connect with CC1314R10’s 5 W module, All ufl connections and sma for high power output. LoRa module wired to the RP2350 over SPI • EC2000 4 G/LTE modem with onboard GPS • 10/100 Ethernet port • Dedicated UART for a serial console • Li-ion battery, charge circuit and seamless battery-backup power path Functionally, this board is all about data communication: Ethernet for wired links, LoRa for long-range low-power, the ...

I need a working prototype of an electronic lock that can retrofit a standard residential dead-bolt and be controlled primarily through a dedicated smartphone app (iOS and Android). The unit should sit on the inside of the door, drive the bolt motor mechanically, and communicate over Bluetooth LE or Wi-Fi so I can lock or unlock the door from my phone whether I’m at home or away. Core requirements • Smartphone app control is the main interface; the app must show real-time lock status and allow user management (add / revoke access codes or fobs). • I also want an optional key-fob reader so family members can tap-to-unlock without the phone. • The prototype has to include its own bolt-turning mechanism, powered by AA or rechargeable batteries, with a low-battery war...

Project Summary I require an experienced IoT/Embedded Systems engineer to design and build a portable LoRaWAN-enabled sensing kit for my PhD research. The system will be used to collect synchronized household energy, water, environmental, and occupancy data from multiple homes for AI model development. The kit should include: Energy monitoring (voltage, current, power, and energy consumption) Water flow measurement Temperature and humidity sensing Occupancy detection (PIR or equivalent) ESP32 (or similar) microcontroller with LoRaWAN communication Portable enclosure with quick-connect terminals for easy installation and removal between households LoRaWAN gateway integration Data transmission to a cloud/database (PostgreSQL, InfluxDB, or similar) Data export in CSV/API format for Python-ba...

# Embedded Firmware Developer (STM32) for Industrial IoT Data Logger We are looking for an experienced **Embedded Firmware Developer** to develop firmware for an **Industrial IoT Data Logger** based on **STM32**. The device will be used in industrial SCADA applications to collect data from PLCs, temporarily store data during network outages, and automatically synchronize the stored data to an MQTT Broker once the connection is restored. This project is intended for long-term industrial deployment, so reliability, code quality, and maintainability are very important. ## Scope of Work Develop STM32 firmware with the following features: * Ethernet communication * Modbus TCP Client * MQTT Client (QoS 1) * Store-and-Forward mechanism (FIFO) * Local data storage on MicroSD * Automatic Ethe...

I have an electronics sample sitting at the factory and need it on its way to Aramex. The unit is small, non-fragile and already boxed in the factory’s standard packaging, so no special repacking is required. Here’s what I need from you: • Create the shipment with a reliable courier, generate the airwaybill and schedule the pickup directly with the factory. • Make sure the service includes a signature on delivery, then share the tracking number with me immediately after dispatch. • Monitor the shipment’s progress and send me the signed proof-of-delivery once Aramex receives it.

We are currently looking for a production-ready Linux-based Industrial Controller Board that can be customized according to our requirements. We are not looking for a new hardware design from scratch. Our preference is to acquire an existing, proven, and production-tested design along with complete design files and source code. This approach will significantly reduce the development timeline, minimize technical risks, and accelerate product commercialization. Our Requirement If you already have a Linux-based Industrial Controller Board, we would like to evaluate it for our application. The existing design should be customizable to meet our functional and hardware requirements while allowing us to retain complete ownership of the final customized design. Preferred Processor Platforms ...

I need an experienced mobile hardware specialist who is completely comfortable working at board level. The work is strictly hardware-side—no software flashing or troubleshooting is necessary. You will spend most of your time on Samsung, Vivo, Oppo and Realme smartphones, carrying out the following high-precision tasks: • CPU reballing • Emmc replacement • Power-IC reballing Clean micro-soldering technique, steady hot-air/BGA rework skills and the discipline to respect component temperature limits are essential. Each job must be returned fully tested: devices should boot, draw normal current and pass basic functional checks after your repair. If you can consistently deliver solid, chip-level results without relying on software fixes, let’s talk.

I'm looking for an experienced Arduino developer to build and program an animatronic project. Key requirements include: - Building and programming animatronic functions, primarily movement (e.g., limbs, head) and potentially sound and light effects. - Using Arduino to control servos, motors, and other necessary components. - Providing a user-friendly interface for operation. Ideal skills and experience: - Proficiency in Arduino programming and electronics. - Experience with animatronics or robotics. - Knowledge of servo motors and motion control. - Ability to create safe, reliable, and engaging animatronic features. Please include examples of similar work in your bids.

I have an early-stage concept for a board that will handle data collection and processing while staying connected through remote control and communication features. Nothing has been laid out yet—I need someone who can walk me through every milestone, from the first schematic all the way to ordering, assembling, and validating the finished boards on JLCPCB. Here’s what I expect our collaboration to cover: • Translating my rough idea into a clear requirements sheet and block diagram • Choosing the right components, creating the schematic, and laying out a production-ready PCB that meets JLCPCB design rules • Generating the BOM, Gerber, CPL, and any firmware hooks needed for data handling and wireless or wired comms • Submitting the order to JLCPCB, tr...

I have a matched RX-TX PCBA pair that currently runs on buggy firmware. My main objective is to clean up the code base so the boards communicate flawlessly again; every effort should go toward identifying and eliminating the faults that break or destabilise the link. Once those issues are resolved, I also want the overall reliability of the system raised as far as practical—solid handshakes, error-free packets and consistent uptime are the end goals. At present the glitches appear inside the communication protocols rather than the hardware itself, so you will be concentrating on the firmware layers that handle serial traffic and any associated timing, buffering or state-machine logic. You are free to refactor, rewrite or replace modules provided the final solution compiles, loads an...

I need an experienced drone builder who can spend a few hours a day at my workshop in Suratgarh, assemble both mini and FPV drones entirely from loose components, tune them, and prove they can lift off reliably. All motors, frames, ESCs, flight-controllers, batteries, radio gear and tools are on hand; what I’m missing is your practical know-how in soldering, wiring, firmware flashing (Betaflight / INAV or similar) and final flight tuning. Primary focus is on mini drones that will carry small payloads for day-to-day operational work, so weight optimisation and centre-of-gravity balance matter. The FPV builds should deliver a clean video feed and tight handling. Once each airframe is flight-worthy, I also want you to stay on as an instructor—show me and two colleagues how to fl...

require a complete, well-commented PLC and HMI program for a small automated linear carriage used to move a paint spray gun back and forth over a maximum travel of 350 mm. The controller is a YKHMI integrated PLC/HMI unit, believed to be model MM-12MR-4MTS-FE280D-FX-B. The PLC section is FX1S-compatible and must be programmed in Mitsubishi GX Works2. The HMI section must be programmed in the correct YKBuilder version for the FE280D display. The program must include automatic and manual referencing, settings entry, normal run, demo run, real-time speed adjustment from a rotary encoder, safety interlocks, alarms, and full source files. Required freelancer experience: Mitsubishi FX-series ladder programming, GX Works2, pulse/direction stepper control, YKHMI/YKBuilder HMI development, homing r...

Design an interface board which is intended to simplify the integration of a Raspberry Pi 5 into an industrial product by providing industrial power conversion and Ethernet distribution. The board will be installed inside the product enclosure and will power the Raspberry Pi while sharing one external Ethernet connection between the Raspberry Pi and another internal Ethernet-based module.

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.

Olyan Wifi 7 PCI-e kártyát vagy megoldást keresek, amely egyszerre tetszőleges számú 2,4 GHz-es, 5 GHz-es és 6 GHz-es hálózatra tud csatlakozni, miközben a legfőbb szempontom a lehető legmagasabb adatátviteli sebesség. Arra van szükségem, hogy: • Maga a hardver vagy a választott chipkészlet alkalmas legyen a párhuzamos (multi-link) működésre. • A firmware/driver oldalról biztosított legyen a több hálózati interfész egyidejű kezelése. • A megoldás PCI-e foglalatú asztali gépben telepíthető legyen, és kompatibilitást nyújtson a legfrissebb Windows vagy Lin...