Firmware Development Jobs

我手上有一块采用7037芯片的主板，需要完整提取其主板固件，并在此基础上进行反向工程和必要的功能修改。目标是搞清固件的结构与加密机制，便于后续定制和二次开发。 交付内容： • 源代码：可在标准工具链下编译、烧录的项目文件。 • 二进制文件：原始镜像及修改后的固件镜像，附校验信息。 • 技术报告：中文撰写，说明提取流程、接口连线、所用工具版本、破解或绕过步骤、反汇编注释和关键修改点。 工作要点： 1. 依据7037芯片常见接口（JTAG、SPI、UART 等）选择合适的读写方法，必要时可拆焊或使用编程器。 2. 记录并说明芯片安全机制、引导加载器、配置区、主程序等区域的拆分与分析过程。 3. 反汇编结果需条理清晰，方便我后续快速定位并调整功能。 4. 确保提取出的固件在原主板可稳定运行，提供 CRC 或签名验证。 如果你对7037 系列芯片或类似安全加密方案有经验，并熟悉常用调试工具、反汇编和代码重构流程，期待与你合作。

I need a compact yet reliable firmware package that runs on a Renesas micro-controller and speaks IEC 60870-5-104 end-to-end, pushing device-status updates through a Quectel EC200 cellular modem straight to our cloud endpoint. My goal is simple: every change of state inside the field unit must be encoded in the IEC104 frame set, transported over the EC200’s TCP stack, and arrive at the server in near real time for further processing. The data flow is strictly one-way for now—no remote controls—so the focus is on efficient, loss-tolerant transmission and clean reconnection handling after drops. Key points you should feel comfortable with: • Renesas toolchain (e² studio / GCC) and HAL drivers • Full or lightweight IEC104 implementation, including AS...

I’m building a first-run prototype of a smart band that my dog can comfortably wear. The core requirements are clear: • Location and activity tracking in real time • Continuous capture of GPS coordinates, movement patterns and basic behavioural stats • Seamless upload of that data to a mobile app for live map view and activity summaries Here’s what I need from you: 1. Hardware & Firmware Design a compact, pet-safe enclosure with a low-power MCU (ESP32, nRF52 or similar), GPS module and motion sensor. Write the embedded code that logs position once per set interval, streams accelerometer data, and packages behavioural metrics for Bluetooth transmission. 2. Companion Mobile App A simple Android/iOS app (Flutter or React Native is fine) that pa...

我计划对苹果电池进行循环次数与寿命参数的深度调整，因此急需一套完整的 7037 IC 芯片烧录方案。 核心需求 • 针对 7037 IC 编写全新的烧录程序（目前手上没有任何现成代码）。 • 在烧录过程中，能够修改电池循环次数、寿命计数等关键寄存器 / 参数。 • 保证方案可兼容常见苹果电池型号与主流编程器，避免版本差异导致的写入失败。 交付内容 1. 技术文档：逐步说明硬件连接、指令集、寄存器说明及烧录流程。 2. 源代码：可直接在指定编程器上运行的烧录脚本 / 固件。 3. 修改指引：解释各参数对应的电池表现，并给出推荐数值区间。 4. 兼容性说明：列出已验证的电池型号、固件版本与风险点。 我拥有必要的测试平台，可在收到资料后第一时间验证；如能提供示范视频或截图，将大幅缩短确认周期。期待与熟悉电池管理芯片、逆向或固件开发的工程师合作。

Protect timeline 2 working days max Project max 100cdn have a working RF receiver board with stable firmware, but the companion transmitter board is unusable because the only Gerber and BOM I was sent are corrupted. The transmitter’s firmware binary is intact, so the new hardware must accept that code without modification and still communicate flawlessly with the existing receiver over our RF data-transmission link. What I can supply: • The corrupted Gerber and BOM as rough references • High-resolution photos of the original populated transmitter board • The receiver board’s schematic and dimensions • The compiled transmitter firmware (HEX) Your task is to recreate the complete transmitter design from the ground up—clean schematic, PCB layout,...

Our industrial-grade controller combines a microcontroller core with supporting FPGAs, and the current firmware (running on an ARM Cortex-M3/M4) needs expert attention. I have several issues to resolve—intermittent peripheral hangs, timing glitches in high-speed I/O, and a few missing features that must be added without disrupting production uptime. Scope of work • Analyse the existing codebase, identify root causes of the observed faults, and document findings. • Refactor or patch the firmware so it runs reliably on the Cortex-M3/M4. • Optimise interrupt handling and DMA transfers where latency is critical. • Provide clear, commented source code plus a concise change-log so the in-house team can maintain it. Toolchain & environment Keil uVision an...

I need a complete board designed around an audio-grade DSP that will sit at the heart of a home audio system. The board must include on-board equalizer control as its core feature and run from a stable AC-adapter input—no battery support required. Here is what I expect: • Schematic capture and component selection for the DSP, audio codecs, power-supply stage (AC-to-DC conversion and regulation), and all supporting passives • A space-efficient, low-noise PCB layout ready for fabrication, delivered as Gerber, drill, and assembly drawings • Firmware or register-map settings that enable the equalizer section, along with clear documentation on how to tweak bands and presets • A complete, production-ready BOM with manufacturer part numbers and sourcing notes &...

VS Code on my Windows machine became mis-configured after a failed uninstall/reinstall, and my STM32F4 board will no longer enter a debug session under the latest stable Zephyr. Compile and flash still work, so the tool-chain is there; it is the IDE integration that is broken. The session will be live over a screen-share, so you will walk me through: • Cleaning up every leftover piece of the previous VS Code + Zephyr install. • Re-installing VS Code in a way that matches Zephyr’s recommended layout, adding the correct extensions and CMake/West integrations. • Restoring full build-flash-debug capability for the STM32F4 kit, including OpenOCD/GDB settings and launch configurations. • Confirming that my earlier PowerShell-based Zephyr install, located in a ...

I am building an integrated volt-ampere meter that also serves as a protection and control module for a pump system. The unit must: • Measure voltage and current accurately while reacting instantly to high/low-voltage and over/under-current conditions (these three protections are the top priority). • Manage a water-level subsystem that reads three stainless-steel probes plus one flow sensor, then drives two relays—one energises the starter circuit, the other keeps the motor running. Scope of work 1. Circuit and PCB: create the full schematic around a MindMotion MM32G0001A1T (or any other MM32 in the same family so our inventory stays unchanged), layout a compact single-board solution, and specify a CC display already stocked in-house. 2. Firmware: write clean, wel...

I’m ready to take a capacitive fingerprint module from idea to full-scale production here in India and need an end-to-end technical partner to make it happen. Stage & scope I want to jump straight to mass production, but before the lines start running we still have to complete the product design itself. Once the design locks in, I’ll need immediate support on three critical fronts: • Sourcing materials – a cost-effective, reliable BOM with India-friendly suppliers for sensor dies, ASIC, FPC, encapsulation resin, flex PCB, and packaging. • Setting up manufacturing processes – line layout, equipment selection (pick-and-place, wire-bond, reflow, conformal coating, laser cutting for cover glass, etc.), process flow documents, and operator work-instr...

# Compact 12S BMS / Active Balancing Board — Ready-Made or PCB Design We are developing a **12S drone battery system** We are looking for someone who already has a **compact 12S BMS design or board** suitable for a high-performance drone application. ### Required specifications * **12S Li-ion / LiPo** * Target PCB size: **maximum 50 × 60 mm** * **Active cell balancing** required * Individual monitoring of all 12 cells * Over-charge / cell over-voltage protection * Over-discharge / cell under-voltage protection * Over-current protection * Short-circuit protection * Over-temperature / under-temperature protection * Individual cell voltage monitoring * Pack voltage and current monitoring * **CAN / CAN-FD communication** * SOC monitoring * Battery fault/status reporting * Comp...

我正在为 SN7037 系列单片机准备量产，现阶段需要一套完整、可复制的固件烧录方案，用于在产线快速、稳定地写入与校验程序。 任务范围 • 目标仅限固件烧录（单片机级别），不涉及电路板或芯片封装改动。 • 提供一条从 PC 端到烧录治具/下载线的全链路解决方案，支持批量烧录、自动校验与失败重试。 • 协议或接口可灵活采用（UART、SWD、USB 等皆可），以实际效率和可靠性为准。 • 交付包含可执行烧录工具、脚本或 GUI，配套驱动与详细使用文档；如需定制 Bootloader，请同时交付源代码。 验收标准 1. 在连续 50 片以上实物测试中，写入-校验成功率达到 100%。 2. 烧录总时长、通信波特率及校验方式等关键参数在报告中列明，可复现。 3. 所有工具与代码无加密锁，可二次使用与维护。 如你已掌握 SN7037 或类似 8051 内核 MCU 的烧录经验，请直接说明可行技术路径、预计周期，以及需我方配合的具体信息（原理图、Firmware .bin 等）。期待与你高效对接，把这条烧录流程一次性打磨到位。

I need an embedded-software specialist who can take my collection of Wi-Fi and LoRaWAN gateways and assorted sensors and knit them into a single, production-ready IoT platform. The job covers the full stack from firmware that runs on the edge devices through to the application layer that users will see. Core capabilities the platform must deliver: • Data collection from every gateway and sensor • Robust device management (on-boarding, remote configuration, OTA updates) • Built-in analytics so I can visualise trends and run simple rules without exporting data elsewhere You’ll be free to recommend languages, embedded RTOS options, and cloud back-ends, provided they reliably handle both Wi-Fi and LoRaWAN traffic and scale cleanly as more hardware is added. De...

I’m working with a Diode Laser Board and I need a custom receiver that can plug into that setup, track the machine’s positioning in real time, and instantly flag any faults it detects. The idea is to have continuous monitoring so I can see where the laser head is at any moment and receive automatic alerts if something drifts out of spec or a component misbehaves. Ideally, the receiver will take positioning data straight from the board, process it with minimal latency, and expose a simple interface—serial, USB, or another protocol you recommend—so the data can be displayed live on a host PC or microcontroller dashboard. Reliability is critical, so built-in error detection should cover signal integrity, unexpected motion, and any other obvious fault conditions you id...

Chcę zamówić kompletny projekt urządzenia IoT opartego na ESP32, które będzie mierzyło ciśnienie w instalacji C.O., prezentowało dane na ekranie dotykowym oraz sterowało elektrozaworem. Ekran ma jednocześnie: • wyświetlać aktualne ciśnienie, • pozwalać na ręczne otwarcie / zamknięcie elektrozaworu. Poza tym potrzebuję, aby system zapewniał: • alarm w przypadku awarii (np. spadku lub wzrostu ciśnienia poza zadany próg), • zdalne monitorowanie przez aplikację Tuya, • archiwum odczytów dostępne w aplikacji i na wyświetlaczu. Zakres prac obejmuje: 1. Schemat elektryczny i projekt PCB z ESP32, czujnikiem ciśnienia, sterownikiem elektrozaworu oraz interfejsem do ekranu dotykowego. 2. Oprogramowanie firmware: obsługa czujnika, logika a...

Tengo un firmware para ESP32 escrito en C/C++ que ya funciona, pero requiere algunos retoques. Busco a alguien con probada experiencia en ESP32 y en programación C/C++ que pueda: • Revisar el código existente, localizar los puntos débiles y optimizar lo necesario. • Modificar las funciones de control que indicaré —son cambios pequeños pero precisos— sin alterar el resto de la lógica. • Incorporar los ajustes adicionales que entregaré al inicio y verificar, con pruebas reales sobre placa, que todo sigue estable. Entrego el proyecto actual y las instrucciones detalladas tan pronto comencemos. Es un trabajo sencillo, pensado para quien conozca bien el SDK de Espressif, FreeRTOS y el flujo de compilación...

Busco apoyo experto para desarrollar un robot cortador de césped destinado a una cancha de fútbol profesional de césped natural. La meta es que la máquina funcione de forma totalmente autónoma, trace su propio recorrido mediante mapeo LIDAR y realice un corte helicoidal limpio y uniforme. Alcance principal • Diseño mecánico del chasis, transmisión y cabezal de cuchillas helicoidales, considerando pendientes, desniveles y la densidad del césped natural de alta competencia. • Arquitectura electrónica: selección de motores, baterías, drivers y sensores que garanticen potencia suficiente para una cancha completa sin recarga intermedia. • Sistema de navegación y mapeo: integraci&oacu...

Request for a Custom Pre-Configured CAN/CAN-FD Gateway for EV BMS Development and Testing I would like to request a quotation for a complete, standalone CAN/CAN-FD gateway system. I am looking for a device that can be connected between the vehicle and the OBD connector using an OBD interposer, and that can operate independently without a PC using pre-loaded configurations. The main purpose of the system is development and testing of battery/BMS CAN communication in electric vehicles. The vehicles I would like to support are: * Tesla Model 3 * Tesla Model Y * Kia e-Niro * Hyundai Kona Electric * Volkswagen ID.3 * Volkswagen ID.4 I will provide the exact model years for each vehicle at the beginning of the project. Required functionality * At least 2 independent CAN/CAN-FD channels *...

Design and build a three-phase, 50 V / 30 A SPWM inverter tailored for an induction motor. The work spans the complete hardware chain—schematic capture, PCB layout, power stage assembly, and gate-drive/protection circuits—plus the firmware that drives it. Either a PIC32 or STM32 can sit at the core; choose whichever lets you deliver stable, low-jitter PWM with minimal dead-time distortion. Firmware targets • Closed-loop speed control with a user-selectable frequency range of 0–250 Hz • Parameter entry and live monitoring over UART, USB, or CAN (pick one to keep the bill of materials lean) • Safe-start, over-current, and over-temperature trips baked into the interrupt flow Deliverables 1. Complete schematics (Altium, KiCad, or other mainstream CAD)...