Stm32pekerjaan

...original analogue board footprint (about 24 × 18 mm, height under 6 mm) but I can adapt mounting holes or connector positions if you have a cleaner layout idea. Power comes from the standard track pickups (nominal 14–18 V DC), so include an efficient buck or LDO to feed the microcontroller and reed circuitry. I haven’t locked the MCU yet; pick anything small, inexpensive, and easy to program—ATmega, STM32, ESP32, or similar—so long as it supports a simple bootloader I can reach over USB-C. Deliverables • Schematic • PCB layout and Gerbers (KiCad or Altium) • Drill files, pick-and-place, and full BOM with distributor part numbers • Minimal firmware that recognises reed input, stores/changes up to 20 IDs, and shows how to r...

I’m updating the firmware for an STM32-based design and need an experienced C++ developer who is comfortable inside STM32CubeIDE. The codebase already compiles and runs on the microcontroller, but several features still require clean, well-structured implementation, performance tuning and thorough testing directly on the hardware. You’ll be working exclusively with STM32 microcontrollers; no FPGA or other targets are involved. Please be ready to pull the current CubeIDE project from my repository, build it as-is, and then extend it in C++17 (or later) while respecting the existing HAL layer and project structure. Deliverables • Updated CubeIDE project with the new or fixed functionality fully integrated • Clear build instructions and a short change...

...comprises 2 STM32 boards connected to their own 7 sensors, 1 motor, and 3 relays. Each is connected to a central Raspberry Pi 4 board. The RIGHT STM32 board also has a TFT ST7789 2inch display. The Raspberry Pi has its own 5-inch display (connected via HDMI) and is connected to a battery BMS via UART and controls the main ON/OFF switching of the exoskeleton system driven via a 48V 10A relay. The Raspberry Pi also controls the operation of a 5V air-pump via a relay able to deliver 1.5A. 1. Graphical user interface (GUI) developed for the STM32 to drive the ST7789 display. The detailed requirements for this GUI are presented in Figure 3. 2. GUI developed for the Raspberry Pi display. The detailed requirements for this GUI are the same as for STM32. 3. S...

Overview I’m looking to develop a robust UART to UDP bridge on STM32 for handling large binary frames and NMEA data. The aim is to enhance data transmission reliability between devices. Scope of work - Develop a UART RX system with DMA and ring buffer on STM32 for lossless data reception. - Implement UDP TX using LWIP for sending data over UDP with configurable IP and port. - Handle large frames by sending in single datagram or using fragmentation protocol (frame_id, chunk_index, total_chunks, crc) for payloads around 10KB. - Optional: forward NMEA data on a separate UDP port. - Deliver complete CubeIDE project and documentation. - Test and verify UDP reception with log/pcap/wireshark or video to prove valid frame transmission. Additional information I’ll acc...

...le développement du firmware et les tests de communication. Les protocoles sans fil à privilégier (Wi-Fi, Bluetooth Low Energy, Zigbee, etc.) pourront être définis selon la portée, la consommation et l’interopérabilité requises. Livrables attendus : • Schéma électronique complet et fichiers PCB prêts pour fabrication • Code firmware documenté, compilable sur la plateforme retenue (par exemple STM32 ou ESP32) • Script ou procédure de tests démontrant la fiabilité des transmissions sans fil • Guide de mise en service étape par étape La solution doit rester modulaire afin d’ajouter facilement de nouveaux capteurs ou actionneurs ...

Necesito ayuda puntual para afinar un proyecto existente sobre ARM STM32. El hardware ya cuenta con: • Protocolo de comunicación binario implementado • Dos tiras WS2812 de 60 LEDs cada una, controladas de forma independiente • Módulo RFID PN532 • Conjunto de switches de entrada Mi prioridad ahora es la integración del RFID y los switches; los obstáculos que enfrento son Problemas de software. Quiero que ambos elementos se lean de forma fiable y se enlacen correctamente con el resto de la lógica ya programada. Busco a alguien con demostrable Experiencia en: – Desarrollo sobre microcontroladores STM32 (bare-metal o HAL). – Manejo de periféricos I²C/SPI, interrupciones y temporización preci...

...Toolkit via USB-C UART, toggling BOOT0 + NRST, using STM32 ROM bootloader Dealer flashing is force-install / recovery Dealer flashing does NOT interact with running firmware Dealer flashing does NOT write OTA metadata Non-Negotiable Constraints Dealer Toolkit behavior Dealer Toolkit: toggles BOOT0 + RESET flashes using STM32 ROM bootloader writes raw firmware bytes only does NOT manage OTA state does NOT write metadata does NOT participate in A/B logic Equivalent to Arduino IDE / STM32CubeProgrammer. Boot stub protection Boot stub lives at 0x08000000 Boot stub region must be write-protected via option bytes Dealer flashing must never erase or overwrite boot stub pages OTA behavior OTA lifecycle is handled exclusively by: STM32 boot stub STM32 application Up...

Necesito ayuda puntual para afinar un proyecto existente sobre ARM STM32. El hardware ya cuenta con: • Protocolo de comunicación binario implementado • Dos tiras WS2812 de 60 LEDs cada una, controladas de forma independiente • Módulo RFID PN532 • Conjunto de switches de entrada Mi prioridad ahora es la integración del RFID y los switches; los obstáculos que enfrento son Problemas de software. Quiero que ambos elementos se lean de forma fiable y se enlacen correctamente con el resto de la lógica ya programada. Busco a alguien con demostrable Experiencia en: – Desarrollo sobre microcontroladores STM32 (bare-metal o HAL). – Manejo de periféricos I²C/SPI, interrupciones y temporizació...

Need software enginner who will help for STM32 Programming Skills required : 1. C Programming and debugging 2. should know Free RTOS Concepts 3. Shall be able to prepare Design using state flow diagram and flow charts 4. shall be able to write the test cases to test the project in excel sheet TASKS are : 1. make PWM OUT Woking and control wheels 2. Make the joystick Inputs working and get the ADC inputs from Joystick (this i have already done , half rest needs to be continued) Digital Input work as E-STOP input 4. Make Proximuty sensor and Ultrasonic sensor working With this i am going to prepare a Robotics vehicle for my FARM For sparying purpose . Future Tasks : 1. Make the input working using LORA and INTERNET (may be SIM800 Module) Process : 1. Requirement document wil...

Assalam o alaikum, I am looking for electrical engineers having expertise in following areas:  Embedded C Programming.  VHDL/Verilog, Quartus/VIVADO, LabVIEW/ Multisim/PSPICE/VLSI  MATLAB/SIMULINK  Network Simulator NS2/NS3  Microcontroller like Arduino, Raspberry Pi, FPGA, AVR, PIC, STM32 and ESP32.  IDEs like Keil MDK V5, ATmel studio and MPLab XC8.  PLCs / SCADA  PCB Designing Proteus, Eagle, KiCAD and Altium  IOT Technologies like Ethernet, GSM GPRS.  HTTP Restful APIs connection for IOT Communications. Actually I have multiple projects in different domains of electrical engineering and I already have a team of engineers working on them but due to workload I am looking for few more engineers to be a part of my team and work with us on regular basis.

I am looking for a freelancer to design both the schematic and PCB layout in KiCad for an embedded hardware project. Project overview The board will include: -> STM32 microcontroller (H7 series preferred, but open to suggestions) -> Ethernet switch with 3 or more ports ---> One port connected to the STM32 using RMII ---> Two other ports connected to SFP sockets -> The Ethernet switch can be Microchip KSZ8873 or a similar compatible device -> No high-speed requirement: ---> 10 Mbps is sufficient ---> 100 Mbps is more than enough Firmware requirements -> Firmware does not need to be complex -> It is sufficient to: --> Enable the Ethernet controller using STM32CubeMX --> Load a basic example so the board responds to PING -> No applicati...

I am ready to move fast on a custom sonar project built around STM32 hardware (CubeIDE + HAL). Your task is to create production-grade firmware that: • Captures long-range sonar returns through the onboard ADC and a TUSS4470 (or comparable) front-end, with signal conditioning tuned for maximum range performance. • Streams that data in real time using a compact, binary UDP protocol—both transmit and receive paths—so it plays nicely with an existing mobile-app protocol. • Listens for run-time commands such as gain adjustments, start/stop, mode selection, and ping-rate changes, then acts on them immediately. Deliverables I need: 1. Well-documented STM32 firmware source code. 2. A clear protocol reference (frame layout, timing, byte ordering, c...

Crearea protocolului de ckmunicare si aranjare pe powerboard bazat pe stm32

Project Description: I’m building a small ROS 2–ready mobile robot platform aimed at undergraduate and MSc robotics education. The mechanical chassis and system architecture are already defined, and I’m now looking for an experienced STM32 firmware developer to implement the motor controller firmware. This is not a vague research project — a detailed firmware specification, protocol definition, and safety model already exist. The task is to implement them cleanly and robustly. Scope of Work: You will develop firmware for an STM32-based motor controller with the following characteristics: Core functionality: - Closed-loop wheel speed control (2 motors) - Quadrature encoder input (3.3V TTL) - PWM + DIR motor driver outputs (one per motor) - Determin...

...comunicare UDP (PCB custom) Caut un ininginer embedded / dezvoltator firmware pentru implementarea unui protocol de comunicație și a transmiterii datelor prin UDP pentru un senzor sonar realizat pe PCB propriu . Descrierea proiectului Hardware-ul este un sonar custom, bazat pe STM32 și driver piezoelectric. Este necesară definirea și implementarea completă a protocolului de date, precum și transmiterea stabilă și în timp real a datelor sonar prin UDP către o aplicație externă. Cerințe tehnice experiență solidă cu STM32 (timere, DMA, ADC, SPI, UART, Wi-Fi / Ethernet) experiență cu protocoale binare custom experiență cu comunicarea UDP în timp real cunoștințe privind bufferizare, framing, CRC și sincronizare capacitatea de a lucra cu timing str...

I am integrating a line-level audio source (peaks up to 5 Vpp) into the 12-bit ADC of an STM32 that only tolerates 0 V–3.3 V. I need a compact conditioning stage that: • shifts the bipolar signal so it NEVER dips below ground or exceeds 3.3 V • offers a user-selectable gain from unity to about ×10 without degrading audio quality • runs happily from the 5 V rail already present in the system (I’m open to clever alternatives if there is a clear advantage) Please deliver a clean, production-ready schematic (Altium, KiCad or PDF) together with simulation proof—LTspice, TINA-TI, Multisim or similar—that demonstrates headroom, distortion figures and clipping behaviour across the full gain range. Include any biasing networks, protection co...

...NDA and full IP assignment are required. Project Structure (Read Carefully – This Is Non-Negotiable) Phase 1 – Architecture & Schematic (NO layout / NO firmware) Deliverables: Complete, review-ready schematic Preliminary PCB stack-up recommendation (4 vs 6 layers, with justification) Production BOM with alternates (MCU, regulators, USB protection, Hall sensors) Electrical design covering: STM32 MCU with native USB FS (HID device) USB 2.0 interface with proper ESD protection Dual Hall sensors per paddle: Digital latch (shift) Analog sensor (clutch) EMI-aware power regulation and filtering Grounding strategy with flexibility for later tuning (filter footprints, ferrites, tie options) Explicit exclusions in Phase 1: PCB layout Firmware development ...

I have an STM32F4-based design that talks to an SD card through the SDIO interface and also exposes the same storage over USB. Using FatFs I can open, read and write files without trouble—until the system sits idle for roughly five minutes. After that pause every file call returns FR_DISK_ERR, the volume refuses to remount, and only a full reset clears the fault. Sleep mode on the card is already disabled and I have double-checked power-management settings on both the MCU and the card itself, so the issue appears to lie elsewhere in the SDIO/USB/FatFs stack or in the way I handle timeouts. What I need now is solid firmware-level troubleshooting, a clear explanation of the root cause, and code changes that let the software recover automatically when the error occurs rather than for...

Project Title: Design & Prototyping of Low-Power STM32 Controller (PCBA) for Water Valve Project Description: I’m building a battery-powered board around an STM32 that can sleep for years (10+ year target), wake up on an RTC or LPTIM tick, read a water-pulse flow meter, and drive a 9V latching solenoid valve. I mostly just need someone who can build it. Preferably in Australia. The core requirements are simple yet strict: • Ultra-Low Power: The micro must stay in Stop mode with the RTC/LPTIM running and draw single-digit µA (

We are looking for an experienced automotive embedded systems / ECU developer who has hands-on experience with Weichai engine ECUs, particularly those used in off-highway equipment such as wheel loaders. The objective of this project is to develop a lab-use simulator/emulator for the AdBlue (SCR) system, enabling the ECU to operate no...Design and develop an external hardware module that connects to the ECU harness Emulator should: Simulate AdBlue/SCR components (NOx sensors, dosing unit, tank level, temperature, pump feedback, etc.) Communicate over CAN (J1939 / proprietary Weichai protocol if applicable) Allow the ECU to remain in normal operating mode without entering derate or fault conditions Module may be based on: STM32 / NXP / TI MCU CAN transceiver Firmware developmen...

Busco apoyo integral para convertir mi concepto en un prototipo funcional. Necesito: • Desarrollo de hardware: esquemático, PCB de 4 capas (o la que resulte óptima), lista de materiales y archivos Gerber listos para fabricación. • Desarrollo de software: firmware sobre microcontroladores (la decisión final del MCU puede ser STM32, ESP32 u otra propuesta equivalente) que maneje la lógica de control, comunicaciones y pruebas de fábrica. Los desarrollos se centraran fundamentalmente en: - Diseño de controles para motores DC - Adquisición y procesado de señales analógicas y/o digitales (células de carga, sensores inductivos, ultrasónicos....) - Gestión de displays La especificaci&...

...muestre cómo conectar y utilizar la memoria RAM APS1604M-3SQR con un microcontrolador STM32H562RGT6 a través de la interfaz OCTOSPI trabajando en modo mapeado en memoria. Conexiones físicas que ya tengo definidas: • PB10 → /CE • PA3 → SCLK • PC3 → SI / SIO0 • PB0 → SO / SIO1 • PA7 → SIO2 • PA6 → SIO3 Lo que espero recibir: 1. Código fuente completo para Arduino STM32 Core v2.12.0 que: • Inicialice la OCTOSPI para esta RAM en modo memory-mapped. • Exponga funciones de lectura y escritura básicas. 2. Un pequeño gestor de memoria con funciones separadas alloc() y free() que permitan reservar y liberar bloques dentro del espa...

...confirmation of barcode reading, count, synchronization of barcode and cameras with the speed (near zero at the time of capture), IR image, image of 4 barcodes (as and when captured), GPS location, and date/time. Live transmission of serial number, read/no read, count, location, date/time to connected device. 3. To interact with and control the devices, a web based UI running on the MCU/SBC (RaspberryPi/STM32/Arduino), connected to a laptop/tablet over wi-fi/USB/4G/Ethernet. Parameters to be controlled - Device selection, speed of motors and activation and de-activation of cameras based on input from ToF sensors, and setup of controls of the ToF sensors 4. Documentation of the system architecture and step-by-step method of setting up and operating the devices. 5. Troubleshooting...

Looking for an embedded engineer with below skillset - 3 to 4 years of hands-on experience with embedded software development - Hands on experience with NXP, STM32, Silicon labs and ESP32 - Working experience with serial communication protocols - Good experience in Embedded C and C++ - Work Independently - Spent 25-30 hours in a week - Must be from India.

- Setup STM32 MacOS environment - STM32 Firmware burn to the ESC - AM32 Firmware development for the ESC - AM32 Firmware burn to the ESC

...expectations clearly, this role is not about: • VLSI / ASIC / chip design • Semiconductor fabrication • Academic electronics research • Writing papers or simulations only This role is about building a real, working device. Who Should Apply You are a great fit if you: • Have hands-on experience with embedded systems or electronics • Have worked with platforms like Raspberry Pi, Banana Pi, ESP32, Arduino, STM32, or similar • Are comfortable with basic soldering, wiring, and debugging • Enjoy working with sensors, batteries, and physical hardware • Have built projects such as: • IoT devices • Robotics projects • DIY electronics • Hackathon hardware prototypes Formal experience matters less than proof that you have bu...

I need a compact, microcontroller-based gateway that sits in-line on a CAN-FD bus and removes or forwards diagnostic frames according to rules I supply. The core of the design should be a device with native CAN-FD support (an STM32, S32K, dsPIC33 C, or any equivalent you recommend) paired with a standard FD-capable transceiver so the board can operate at 500 kbps arbitration and 2 Mbps data rates without external glue logic. Beyond the hardware, I also require firmware—written in C or C++—that initialises the peripheral, listens for every frame, and applies real-time ID filtering (e.g. allow 0x700–0x7FF, block all others). Filter rules must be easy to change over UART or USB so I can refine them in the field. Deliverables • Schematic, PCB layout (Gerber/...

...microcontroller-based inverter for industrial equipment and need an engineer to translate my specs into a production-ready design. The goal is a rock-solid 300 W pure sine wave output, stepping from a nominal 350 V DC input down to 200 V AC. Low total harmonic distortion is essential because the unit will drive sensitive industrial controls. You are free to choose the MCU family you’re most comfortable with (STM32, PIC, MSP430, or similar) as long as the firmware is well-documented and the control algorithm delivers a clean sinusoid under varying loads. Efficiency, thermal performance and fault handling must be considered throughout the design. Deliverables • Complete schematic in Altium, KiCad or Eagle • PCB layout files ready for fabrication • MCU fir...

I need a compact 4-in-1 ESC that can reliably push 60 A per phase on up to 8 S Li-Po packs while running the open-source AM32 firmware. The brain must be an STM32 MCU, and the design has to accept Betaflight’s passthrough updater so field-flashing stays simple for end users. Hardware requirements • Power stage: 60 A continuous, 8 S (33.6 V) max, low-Rds(on) MOSFETs and gate drivers that are readily available in “Blue-compliant” (lead-free, RoHS-equivalent) versions. • MCU: any suitable STM32 line is fine as long as it meets AM32 timing, PWM and ADC constraints; I am open to your recommendation. • Sensing: at least one ADC channel per ESC for voltage and current plus spare pins for temperature or rpm hall sensors. • Telemetry: UAR...

I’m building a compact system for my house...a residential distribution board, so I need proper isolation, DIN-rail friendliness and components that can handle mains levels without drift. On the software side I’d like a simple dashboard I can reach from phone or browser over Wi-Fi or Ethernet—nothing fancy, just clear, instant figures and perhaps a daily kWh tally. If you have experience with micro-controller based metering (think ESP32, STM32, ADE series, SCT clamp sensors, shunt resistors, etc.) and can supply: • schematics + bom I can handle enclosure printing and mains wiring myself; everything else—from calibration routine to proof-of-accuracy—comes from you. Let’s make a reliable, safe and precise monitor that gives me second-by-seco...

Firmware development for Syringe Pump Controller using STM32 and DWIN HMI.

I need an experienced STM32 programmer to assist with a robotics project. The microcontroller in use is from the STM32F series. Key tasks include: - Embedded system development - Peripheral interfacing Ideal skills and experience: - Proficiency in STM32F series - Strong background in robotics and embedded systems - Experience with peripheral interfacing and firmware development Please provide examples of previous work in robotics and STM32 programming.

I have a small board built around an STM32 microcontroller (STM32L010F4P6) and I simply need firmware that drives two standard 5V fans from PWM output. The speed of the fan should be adjustable with the PWM output (5 different settings). There is a push-button that will be used to change the speed when pressed. There is also a simple RGB LED controlled with 3 outputs. There is also a battery charger (BQ25895) that we need to configure or read the battery voltage from, but nothing special. This should be a very simple and quick project to someone with the proper experience. I need somebody who has done STM32 projects before and who can complete that project quickly, ideally within a few days. I will provide schematics and all relevant details to the selected candidates. ...

I have a 230 mm × 230 mm, two-layer board that will be driven by an ARM-based STM32 microcontroller. I will provide a schematic, key component part numbers(BOM) and basic placement of components on PCB; you take it from there—routing the board, and packaging everything for fabrication and assembly. Deliverables •PCB layout files • Manufacturing outputs: Gerber, drill, pick-and-place, and assembly drawings Acceptance criteria • Board outline strictly 230 mm × 230 mm, two copper layers • Clean, manufacturable routing that passes DRC and ERC in the chosen tool • Verified impedance and clearance on all high-speed or high-current traces

I’m building a compact system for my house...a residential distribution board, so I need proper isolation, DIN-rail friendliness and components that can handle mains levels without drift. On the software side I’d like a simple dashboard I can reach from phone or browser over Wi-Fi or Ethernet—nothing fancy, just clear, instant figures and perhaps a daily kWh tally. If you have experience with micro-controller based metering (think ESP32, STM32, ADE series, SCT clamp sensors, shunt resistors, etc.) and can supply: • schematics + bom I can handle enclosure printing and mains wiring myself; everything else—from calibration routine to proof-of-accuracy—comes from you. Let’s make a reliable, safe and precise monitor that gives me second-by-seco...

I need a complete, working solution that takes live RS-422 data and renders it—both text and graphics—on a 10-inch LCD. The scope covers everything from concept to prototype: • Architecture & part selection: help me choose the most suitable 32-bit microcontroller (Arduino-compatible, ESP32, STM32 or any better fit) plus an appropriate 10-inch panel and its driver board. • Schematic & PCB: create production-ready Altium or KiCad files, including power, signal integrity for RS-422 transceivers and the chosen display interface. • Firmware: write and document code that parses the RS-422 stream, maps parameters to a clean UI, and handles touch (if the panel supports it). • Prototype build & test plan: BOM with supplier links, gerbers, co...

... - Estimación de costes de prototipo - Posible desarrollo de un primer prototipo funcional Antes de compartir detalles técnicos, será necesario firmar un acuerdo de confidencialidad (NDA). El documento está preparado y se enviará al profesional seleccionado. Requisitos del profesional - Experiencia demostrable en electrónica e IoT - Conocimientos en microcontroladores (ESP32, Arduino, STM32 o similares) - Experiencia con sensores y comunicaciones inalámbricas - Capacidad para diseñar prototipos funcionales - Comunicación clara y profesional Qué ofrezco - Proyecto serio y bien definido - Comunicación fluida - Posibilidad de colaboración a medio plazo si el prototipo es viable ...

Project Title: Design & Prototyping of Low-Power STM32 Controller (PCBA) for Water Valve Project Description: I’m building a battery-powered board around an STM32 that can sleep for years (10+ year target), wake up on an RTC or LPTIM tick, read a water-pulse flow meter, and drive a 9V latching solenoid valve. I mostly just need someone who can build it. Preferably in Australia. The core requirements are simple yet strict: • Ultra-Low Power: The micro must stay in Stop mode with the RTC/LPTIM running and draw single-digit µA (

I am building a custom STM32-based embedded device: an electronic level with an integrated timer, OLED display, RGB LEDs, buzzer, and battery power. The hardware design is complete. I am now looking for an experienced embedded developer to bring the device to life with clean, reliable, and power-efficient firmware. This project sits between proof-of-concept and production: the functionality is well defined, but the implementation should be robust, modular, and easy to extend. Key Hardware: MCU: STM32L496RET6 IMU: ICM-20948 Display: OLED 128×32 (I2C, SSD1306-compatible) User input: 3 × push buttons Indicators: 3 × RGB LED Buzzer Power: Li-Po battery Scope Intermediate project with meaningful customization. Emphasis on clean architecture, readability, and maint...

Embedded HW & FW Engineer – RS-485 Motion Controller PCB (Camera + I/O) Type: Fixed Price or Hourly Location: EU preferred, remote possible Language: English Duration: Long-term cooperation expected Project Description We are looking for an experienced embedded hardware & firmware engineer (freelancer or small SME) to design a controller PCB and firmware for a positioning system with an industrial camera interface, auxiliary power outputs, IMU sensing, and external motion drivers. The controller actively controls external motion drivers and must read and evaluate position feedback (encoders). Low-level power stages are external, but driver control logic, encoder handling, IMU integration, safety supervision and state management are core parts of this project. The system ...

Role Overview We already have our IoT platfo...and deployments Required Skills Strong experience in IoT backend development API development (REST / MQTT familiarity required) Experience with databases used in IoT dashboards (SQL/NoSQL) Understanding of device communication, telemetry and data pipelines Debugging experience in production systems Ability to work independently and communicate clearly Good to Have Experience with ESP32/STM32 or similar controllers Familiarity with AWS IoT / Azure IoT / Firebase or equivalent Basic front-end skills for dashboard tweaks Experience with vending, industrial automation, or real-time systems Engagement Ongoing support (hourly or retainer model) Work assigned based on tickets / tasks Priority support during critical breakdowns...

...(H-Bridge) topology. ​3. Control Stage: The STM32 acts as the "brain," generating PWM signals and monitoring sensors. ​2. Hardware Components ​Microcontroller: STM32F4 series (like STM32F405/407) or the STM32G4 (specifically designed for digital power). ​Switching Devices: MOSFETs or IGBTs (e.g., IRF540N for low voltage or high-voltage variants for the H-bridge). ​Gate Drivers: Necessary to interface the 3.3V STM32 logic with the high-voltage gates (e.g., IR2110). ​Sensors: * ACS712 or ACS711 for current sensing. ​Voltage dividers for voltage sensing. ​Filtering: LC Filter (Inductor and Capacitor) to smooth the PWM into a clean Sine Wave. ​Communication: ESP8266 or ESP32 for Wi-Fi connectivity (making it "Smart"). ​3. Key Software Algorithms ​The ...

...logging on 128 GB SD card Sustained ≥100 Mbps without FS errors or overruns CSV log files readable on PC after power-cycle Short technical report covering: SD clock & DMA configuration FatFS/exFAT settings Performance observations & recommendations Required Experience STM32H7 series SDMMC + DMA multi-block writes FatFS performance tuning Cache/DMA coherency handling exFAT implementation on STM32 This project will be awarded only to freelancers who can demonstrate working exFAT SD card data logging. The current implementation works on FAT32, but the final solution must support exFAT....

...Embedded Firmware Engineer - YC3121 Thermal Printer Development Description: We need an experienced embedded firmware engineer to develop thermal printer firmware for YC3121 MCU (ARM Cortex-M based). The project involves creating ESC/POS compatible printer firmware using existing reference code and manufacturer SDK. Requirements: 5+ years embedded C programming ARM Cortex-M MCU experience (STM32, NXP, or similar) FreeRTOS development experience (2+ years) USB device stack implementation experience Hardware driver development (GPIO, SPI, UART, Timer, ADC) Keil MDK or IAR Embedded Workbench experience Strong debugging skills (J-Link, logic analyzer) Project Scope: - Develop ESC/POS compatible thermal printer firmware - Integrate YC3121 SDK drivers (provided) - Implemen...

Fix STM32 Firmware Update in Flutter Android App - Boat Lift Controller Project Overview We have a Flutter Android application (Atlantis Dealer Tool Kit) that communicates with an STM32H743VIT6-based boat lift controller via USB-to-serial adapter. The app successfully reads/writes commands in text mode, but firmware updates fail to sync with the STM32 bootloader. What Works: Arduino IDE successfully uploads firmware to the same controller using the same USB connection and UPDATE button procedure. What Fails: Our Flutter app cannot sync with the STM32 bootloader (AN3155 protocol) - we get "Timeout waiting for ACK/NACK" with no response when sending 0x7F sync byte. The Problem When attempting to flash firmware via our app: 1. User presses ph...

Firmware Development Request – STM32 GPS Tracker We are looking for an experienced embedded firmware developer to develop firmware using STM32CubeIDE for a GPS tracking device based on STM32G081RBT6. Project Scope: The firmware will be developed according to an SMS and GPRS communication protocol and must support the following features: - Periodic transmission of GPS data - Data acquisition from Accelerometer, CAN Bus, Analog inputs, Digital inputs, ... - Control of digital outputs - Alarms and alerts, including: Geofence, Overspeed, Power/battery-related events, Input state changes, ... - Local data storage in EEPROM - Reliable data upload to a remote server via GPRS - SMS commands for configuration, status request, and emergency alerts Technical Requirements: - STM32CubeI...

My current firmware runs on an STM32F0 and now needs both NB-IoT connectivity and GNSS positioning. The hardest piece for me is understanding and using the NB-IoT AT command set, so I want to focus there first, then work outward to full integration. What I need from you • A concise yet thorough walkthrough of the NB-IoT command syntax—each command’s purpose, required parameters, typical responses, and timing notes. • A step-by-step power-up and network-attach sequence written for an STM32F0 UART interface (HAL-based), including code snippets I can drop straight into my project. • Guidance on configuring the GNSS module, reading NMEA (or vendor-specific) sentences, and translating them into latitude/longitude in my application layer. • Practical exam...

I need an experienced STM32 developer to implement UART communication. Key Requirements: - Implement UART communication on STM32 - Experience with SPI and I2C is a plus - Mobile communication protocol expertise is a bonus Ideal Skills and Experience: - Proficiency in STM32 development - Strong background in UART - Prior work with SPI and I2C - Relevant project experience in embedded systems Please include your relevant experience in your application.

...or any equally economical option—feeds a low-cost MCU or voice-playback SoC. When the sensed speed or elapsed time matches stored values, the board drives a small amplifier and pushes a clear, intelligible voice prompt through the speaker. No fancy music, just clean announcements. I’m flexible on the exact parts; you can mix-and-match accelerometer vs. GPS, SPI flash vs. SD card, or ESP32 vs. STM32—whatever lets us hit the sub-$8 BOM while keeping the circuitry stable on 12–24 V vehicle power. Deliverables • Schematic and PCB (Gerber + fabrication notes) • Itemized BOM with vendor links and pricing evidence for the <$8 target • Firmware source, binaries, and simple config tool or instructions to swap audio files • Quick sta...

I’m building a next-generation smart-home power controller and need the complete electronics and firmware design. The unit must be modular yet robust, offering six independent electromechanical relays that each carry up to 15 A. An STM32WB55 series MCU will handle all application logic and run a full Zigbee 3.0 mesh stack, so the PCB has to respect RF layout best practices and give me a dependable antenna feed. Each relay requires its own ACS724 current-sense channel and a zero-cross detection circuit to minimise stress on the contacts. I also want an SHT4x sensor on board for ambient temperature and humidity, an RGB status LED for global health, and individual LEDs that mirror the state of every relay. Industrial-grade reliability is non-negotiable. Please factor in proper isolati...