Microcontrolador Jobs

I need a purpose-built Electronic Speed Controller for my electric glider that runs on 3-6 cell Li-Po packs (8.4 V – 11.1 V). The unit must deliver: • Responsive throttle control for a brushless motor • Integrated battery management with safe low-voltage cut-off and, if practical, basic current limiting • A reliable brake function to stop a folding prop cleanly in flight Compact size, light weight and maximum efficiency are important, as the airframe has limited space and every gram counts. Here is what I would like from you: 1. Schematic, PCB layout and BOM (KiCad, Altium or similar) 2. Firmware source code with clear parameter tables (C / STM32, ATMEL AVR or comparable MCU) 3. Simple desktop configuration tool or clear CLI instructions so I can adjust ti...

I need a clean, well-documented I2C driver written in C for my STM32 board. The driver must operate in both master and slave modes while staying strictly within the 100 kHz Standard-mode specification. Full read and write transactions are required in each role, including proper start/stop sequencing, ACK/NACK handling, and error recovery for bus faults or time-outs. My current firmware is built with STM32CubeIDE, so the new module should compile there without warnings and slot neatly into the existing HAL-based project structure (pure LL implementations are also acceptable if you explain the integration steps). Deliverables • Source and header files with clear, line-level comments • An initialization routine that lets me choose master or slave at runtime • Blocking...

I need clean, reliable firmware that will sit on my existing RTU hardware, pull live sensor readings, and publish them to my cloud broker over MQTT. The focus is squarely on accurate data collection from the attached sensors and timely transmission upstream; no local heavy processing is required right now. You will work directly in the device’s embedded environment, set up the drivers for the connected sensors, handle the sampling schedule, form properly structured MQTT messages, and make sure every reading reaches the server even in spotty-network conditions (re-connect logic, message queuing, QoS handling, etc.). I am happy to provide the current hardware schematic, sensor datasheets, and access to a test broker the moment we start. I expect well-commented source code, a conc...

I'm looking for an experienced PCB designer to create a control board for my standby generator. The PCB should manage an Automatic Transfer Switch (ATS) and engine control, and should include: SPARXX ATS REV A – PCB DESIGN SPECIFICATION Project Design a production-ready PCB-based Automatic Transfer Switch (ATS) controller to replace an existing relay/timer panel while maintaining the same operating logic. Deliverables Required Complete KiCad 9 project Schematics PCB Layout BOM Gerber files Pick and Place files Programming header Source files PCB Size Approximately 3.5" × 7" × 0.5" maximum Reserve approximately 20% of board space for future expansion. Power Inputs: 120 VAC 12 VDC Generator Supply Board must automatically power from either sour...

I already have a partially-working prototype for an industrial counter + timer built around an Arduino. It needs to count production units while tracking elapsed time in parallel, show both values on an LCD screen, and push the data over Wi-Fi to my factory LAN. Where I’m at • Core hardware is assembled and a rough sketch is running, but the logic occasionally drifts and the Wi-Fi payloads are not stable. • The prototype can be shipped to you immediately, fully labelled and with a wiring diagram of the current build. What I need from you 1. Clean, well-commented Arduino code that reliably performs the simultaneous counting and timing functions. 2. Solid LCD interface: clear, easy-to-read formatting of count, timer, and simple status icons. 3. Robust Wi-Fi routin...

I’m building a compact, 4–6-layer mixed-signal board that will sit at the heart of a new sensor-interface product. The board must collect analog data, run it through an on-board DSP, and then push results out over Wi-Fi, Bluetooth, and a cellular link. To keep the unit fully portable, all power must be managed through an integrated battery management system, including charging, protection, and efficient rail generation for the analog, digital, and RF domains. Here’s what I need from you, start to finish: • Complete schematic capture with full part selection, paying special attention to RF front-ends, low-noise sensor inputs, the DSP section, and the battery management circuitry. • A 4–6 layer stack-up that cleanly separates noisy digital, sensitive ana...

I’m building a handheld device that lets me roll a ball across any flat surface and have it actively steer itself so the pen mounted inside draws in the exact direction I choose. An optical-flow sensor will read surface motion, my code will translate that into heading commands, and two small motors inside the ball will supply the corrective spin. The overall sketch is already under way, but I need a specialist who knows Arduino-style hardware and, more importantly, how to marry miniature motors with an ESP32-C module for precise directional control of the ball. Your main focus will be advising on the right motor format, driver circuitry, power budgeting, and the physical/electrical integration so the firmware can call simple functions like setHeading() or setVelocity(). I’m ...

我已从设备上安全拆下 7037IC 芯片，物理状态完好。现在希望在对芯片零损伤的前提下，一次性读取出其中的手机操作系统固件。为协助你完成工作，我可以提供： • 高分辨率引脚照片 • 电路连接信息 • 芯片实物寄送 首选方案是使用 JTAG 工具；若你建议配合 ISP 编程器、NAND Flash 编程器或其他专用设备，也请说明理由与流程。 交付要求 1. 读取并生成完整可验证的操作系统固件映像（BIN 或 HEX）。 2. 同步提交哈希值或其他完整性校验证明，确保数据无缺失、无篡改。 3. 附一份简要读取日志或说明文件，便于我后续分析。 4. 如在提取过程中顺带获得基带或引导固件，请仅在说明中备注，交付物仍以操作系统固件为准。 期待你分享过往使用 JTAG（或相关工具）成功提取芯片数据的案例，说明所用设备、步骤及为何对芯片安全。请在接手后于一个月内完成全部交付。 如果你擅长精确引脚定位、信号完整性处理、低电压读取等细节，欢迎提出你的方案——我会根据专业程度与成功率优先选择合作。

I have a couple of small IoT units here in Hamilton, ON (L9C 6A4), I need someone who can come to the house with Microchip’s IPE and the right programmers, connect to each board, and load the latest firmware. I will supply the compiled HEX files and the client will perform the test. All you need to do is bring the hardware (PICkit, SNAP, or similar), verify each flash. If you’re local, equipped, and comfortable doing house calls, let’s set a time.

I have a consumer-electronics board that combines both surface-mount and through-hole parts and now needs full turnkey assembly. I will supply the BOM, centroid/PnP file, and all component datasheets. What I need from you is the complete build—sourcing any missing passives, mounting every device, soldering, cleaning, and functional testing—so the boards arrive production-ready. Key points you should know: • Component mix is roughly 80 % SMD (0402–QFN) and 20 % through-hole, so the job will require automated pick-and-place with reflow plus a secondary wave or selective-solder pass. • different Board size, two layer FR-4, lead-free finish. Typical run will be 50 prototypes, scaling to 1 000 if the initial batch passes. • I expect optical inspection (AO...

# Prototype Brief — Handheld Force-Sensing Probe ## Summary I need a working prototype of a small handheld instrument that measures the contact force applied through a thin rigid probing tip. When the tip is pressed against a surface, the device reads the applied force in real time and signals when a target force is reached. All sensing and electronics stay inside the handle; the tip itself is a slim passive pin. This is a proof-of-concept prototype, not a finished product. Priority is a fast, cheap, working demonstration. ## How it works (concept) - A thin, rigid probing tip is mounted on a shaft. - The shaft is free to slide a tiny amount (roughly 0.1–0.3 mm) inside the handle against a light preload spring. - Pressing the tip transfers axial force to a force sensor housed...

This is a hardware development project. I require a fully functional working prototype, not a simulation, research paper, or theoretical design. The final deliverable must demonstrate ultrasonic TOF measurement on small non-ferrous metal components through a working prototype and demonstration video. I need help taking a lab-bench concept for measuring ultrasonic wave velocity and turning it into a rugged, handheld instrument that works reliably on Platinum, Silver, Nickel, and brass samples. The core tasks include designing the full analog front-end (pulser/receiver, low-noise pre-amp, gain control, anti-alias filters), selecting and driving the piezo transducers, and implementing a precise time-of-flight algorithm in an embedded platform. I am open to ARM, DSP, or FPGA solutions as ...

I have a 16-channel relay board that must be driven by an Arduino. Each of the sixteen micro-switch inputs will correspond to one—and only one—relay output. When a switch is pressed the matching relay should energise for a fixed pulse of 2-3 seconds, then drop out automatically; there is no need for the user to alter that timing. Here is what I need from you: • Clean, well-commented Arduino sketch that reads the 16 discrete inputs, debounces the switches, and fires the appropriate relay for the required duration. • Pin-mapping and a simple wiring diagram so I can connect everything without guesswork (I will be using a common 16-relay module that accepts active-LOW signals, but please keep the code flexible enough to invert logic if needed). • Guidance on a...

​"Hi, I want to place an order for a premium, custom High-Power Mono Amplifier PCB design. This amplifier will be installed on a tractor and needs to be completely rugged, high-performance, and bulletproof. It will mostly drive heavy loads like four 12-inch or two 16-inch woofers, but it must also safely drive small 4-inch speakers without burning them out. ​Please design the PCB combining all the following specifications into a single layout: ​Power & Architecture: High-Power Mono Amplifier using a Dual-Supply (+VCC, GND, -VCC) topology, capable of handling around ±35V to ±45V DC input. ​Output Stage: 4 Power Transistors in total -> 2x 2SC5200 (NPN) and 2x 2SA1943 (PNP) connected in parallel for high current and deep bass. Driver stage should use BD139 and BD140....

I'm seeking an experienced Allen-Bradley PLC programmer for a manufacturing process application. The PLC will primarily be used to monitor sensors and alarms. Key Requirements: - Expertise in Allen-Bradley PLCs - Experience in manufacturing process applications - Ability to program PLCs for monitoring sensors and alarms Ideal Skills: - Proficiency in ladder logic and other programming languages - Familiarity with industrial sensors and alarm systems - Strong troubleshooting and problem-solving skills Please include your relevant experience and approach to the project in your bids.

I need a working human-computer interface that can both pick up and broadcast data over Bluetooth at the highest speed the protocol allows. The data flowing through it will be full-rate cellular communications data rather than simple audio or text, so throughput and low latency are critical. On the input side the unit will read Qi energy and Acu-meridian energy via harness-style skin contacts. Those raw sensor signals have to be conditioned, digitised and pushed straight to a tablet over Bluetooth without noticeable lag. In the opposite direction the tablet will be able to transmit control or stimulation patterns back to the interface just as quickly. The job covers hardware design, embedded firmware and a basic demo app for a tablet or computer: • Hardware: schematic, PCB layout an...

Title: Full-Stack Embedded Engineer: KiCad Flex-PCB Design & STM32 Firmware for Capacitive Sensing Array Project Objective: We are prototyping a wearable biomechanics system for a para-athlete runner to measure Vertical Impact Peak (VIP) and asymmetry. The hardware architecture utilizes a custom multi-channel capacitive force sensor array (copper pads separated by a cellular polyurethane/Poron dielectric) embedded in a shoe insole/cleat. We need a full-stack embedded systems engineer to design the custom Flexible PCB layout in KiCad and write the bare-metal C/C++ firmware for an STM32 microcontroller to process the sensor data. Key Deliverables & Scope: 1. KiCad Flex-PCB Layout: - Design a custom-shaped, ultra-thin Flexible PCB (Flex-PCB) insole footprint based on provided ...

I am seeking a detailed quotation for the complete hardware design, manufacturing package, and optional firmware bring-up for a custom professional UAV flight controller. The objective is to create an original, production-ready STM32H7 flight controller as the foundation of a modular UAV electronics platform. The design must include: - Standalone flight controller with compatibility for ArduPilot, Betaflight, and INAV. - STM32H7 MCU (STM32H743 preferred) with long-term availability and firmware support. - Integrated sensors: dual 6-axis IMUs, barometer, differential-pressure airspeed sensor, external GPS/compass connections. - Comprehensive flight-control interfaces: USB Type-C, MicroSD card interface, CAN interfaces, UARTs, I²C/SPI interfaces, RC receiver input, safety-switch input,...

Wireless Load Cell Monitoring Systems About the Role We're building out a wireless weighing and monitoring solution from the ground up, and we need a seasoned embedded engineer who can own the technical journey — from early prototype to a validated, field-ready product. This role sits at the intersection of hardware and software. You won't just be writing firmware in isolation; you'll be shaping system architecture, wiring up hardware, writing and debugging embedded code, and pushing performance across the board. At a high level, the system pulls weight data from a network of load-cell-equipped sensor nodes spread across multiple locations, processes that data on-device, pushes it over a wireless link, and surfaces it through a cloud-connected platform for remote acce...

I'm seeking an expert in firmware and hardware integration, specifically for radio communication. This project involves developing both firmware and the necessary hardware components. Key Requirement: - Custom Protocol: The firmware must support a custom communication protocol tailored to our specific needs. Ideal Skills and Experience: - Proficiency in radio communication systems - Experience with custom protocol development - Strong background in microcontrollers and circuit design - Knowledge of data acquisition and control systems is a plus Please share your relevant experience and approach to this project.

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.