Microcontrollerงาน

งานที่ผมทำเกี่ยวกับกล้องติดตามการเคลื่อนที่ โดยใช้ Image Processing ในการประมวณผลภาพ โดยใช้กล้อง Webcam ในการจับภาพแล้วนำมาประมวณผลครับ มีตัวอย่างตามไฟล์ที่แนบครับ งานผมทำลักษณะเดียวกันครับ แต่ไม่จำกัดภาษาที่ใช้เขียน จากนั้นส่งค่าไปไห้ไมโครคอนโทรเลอร์เพื่อสั่งการเซอร์โวมอเตอร์ไห้หมุนกล้องไปยังจุด ๆ นั้นครับ อุปกรณ์ที่มีอยู่คือ microcontroller และ servomotor และ webcam ครับ อีกไฟล์เป็นขอบเขตของงานผมครับ ไม่จำกัดภาษาที่ใช้เขียน ระยะเวลาในการทำเสร็จภายในวันที่ 14 มีนาคม 2557 ติดต่อกลับ 085-820-5665 นิกส์

This system is an industrial-grade microcontroller-based control and monitoring unit built around an ESP32 (or equivalent), designed to interface with multiple sensors, user inputs, communication modules, and output devices using I2C, SPI, UART, and GPIO. The input layer includes a pressure sensor (with integrated temperature sensing), optional temperature and humidity sensor, external EEPROM, and an I/O expander (MCP23017) over I2C. User interaction is handled via 5 push buttons, 5 LEDs, and a buzzer, while 3 relay outputs are provided using a driver such as ULN2003. The controller manages sensor acquisition, control logic, interrupt handling (GPIO/I/O expander), and supports debugging via JTAG/USB, along with wireless connectivity through WiFi and BLE. The system supports either a...

...the board, • assembling and reflowing it, • loading the firmware, and • proving that everything operates exactly as intended. The most important interaction is tight, reliable coordination between the user’s button press (or other trigger you recommend) and the two plungers: press, plunge, confirm on screen, vibrate, optional audio. A clean, well-structured codebase on a mainstream microcontroller (ESP32, STM32 or similar) is expected so future feature tweaks stay painless. Key acceptance criteria • Final PCB, fully assembled and flashed, in my hands no later than 10 July • Continuous bench test showing at least one week of duty cycle on a single charge • Smooth, simultaneous operation of display, vibration motor, speaker and b...

Design a complete electronic schematic for our smart orthotic insole device based on the given system requirements. The circuit will include multiple FSR sensors (Force Sensitive Resistors) for plantar pressure sensing and an IMU sensor for gait/motion tracking. Select and integrate suitable supporting components such as microcontroller, BLE communication module, power management circuit, battery charging unit, connectors, and signal conditioning circuits. Ensure proper sensor interfacing, analog signal acquisition, filtering, and calibration provisions in the schematic design. After schematic approval, develop a compact, optimized PCB layout suitable for wearable insole integration with size and flexibility constraints in mind. PCB must be designed for low power consumption, stable...

OVERVIEW -------- I need a KiCad PCB designer to take a fully verified analogue circuit design and implement it correctly in KiCad, producing production-ready gerbers for JLCPCB. The circuit design is complete — this is a layout and EDA implementation job, not a design-from-scratch job. The board is a 6-cell LTO battery active balancer, 20A per channel, entirely analogue (no microcontroller). I need 4 identical boards to cover a 24S 15P Yinlong 66160 45Ah home battery pack. I plan to order 50 boards after a 5-board prototype run. BOARD SPECIFICATIONS -------------------- Board size: 250 x 120 mm Layers: 6 (JLCPCB stackup JLC06161H-3313) Outer copper: 2oz (L1 and L6 ) Inner copper: 0.5oz (L2 through L5) Surface finish: HASL lead-free Solde...

...production-ready printed circuit board for a compact consumer-electronics tracker. The board has to combine Bluetooth connectivity for smartphone pairing, GNSS positioning for global location data, a LoRa module for long-range updates, and a 3-axis motion sensor to wake the unit only when it moves. Everything will run from a single rechargeable battery, so careful power budgeting and a low-power microcontroller are essential. Form-factor will be small enough to slip into a key-tag style enclosure, so component height and antenna placement must be considered from the start. I’m flexible on the exact silicon—Nordic, Espressif, STM, Semtech, etc.—as long as you can justify part choice against current draw, cost and global availability. Please take the design from...

...circuit design: I need a fresh set of eyes to review, debug, and improve the front-end and conditioning stages so our multi-channel waveforms stay clean from kHz up into the low-MHz range. You will also find yourself touching the programmable logic; I use both VHDL and Verilog, so fluency in either (or ideally both) is welcome when tweaks to the signal-generation core are required. On the microcontroller side each ESP32 handles data processing, manages communication protocols, and drives attached peripherals, all written in C/C++. Expect to dive into that firmware whenever hardware changes ripple upward. Key objectives • Analyse and correct existing schematics and PCB layouts, paying particular attention to filtering, amplification, and noise mitigation. • Val...

I’m building a compact embedded platform that runs from a single 12 V supply and I need a purpose-built PCB to act as the system’s brain. The board has to host a microcontroller at its core, interface cleanly with several sensors, and drive multiple actuators, all while keeping noise low and layout tight. Here’s what I’m looking for: • Complete schematic capture showing microcontroller, sensor inputs, actuator drivers, power-conditioning and protection circuitry • PCB layout ready for manufacture (Gerber/ODB++ files, drill, pick-and-place, clear layer stack details) • Bill of materials with part numbers that are currently available from major distributors • Basic power-up simulation or design rule check report proving the 1...

...sensor feeds a microcontroller so the firmware can keep the bus voltage within safe limits and trigger protective actions when it strays. Please size all resistive dividers, isolation devices (if required), and any signal-conditioning stages so the microcontroller’s ADC receives a clean, scalable signal. What I expect from you • Complete schematic, preferably drawn in KiCad or Altium, showing the microcontroller, voltage sensor path, power supply rails, and any filtering or isolation you recommend. • Short bill of materials with part numbers that are actually available. • Brief design notes explaining calculation of divider ratios, ADC reference choice, and how the circuit meets accuracy and safety goals at both 12 V and 24 V. If you have a...

...for • Circuit-level design of both the low-power transmitter and the super-regen/ super-het (designer’s choice) receiver, including complete schematics, PCB layouts and a concise Bill of Materials with part numbers that are actually in stock. • Component selection that keeps cost sensible while ensuring the 40 m range with small whip antennas (no dishes or large loops). • Firmware or microcontroller snippets, if any, that demonstrate clean OOK pulse generation on the TX side and pulse detection / decoding on the RX side (GPIO-level output is fine). • A short tuning and test guide so I can replicate your bench setup and verify range, sensitivity and stability at my end. Acceptance will be based on: 1. Verified 200 kHz carrier (±1 kHz) sh...

...is designed with ALTIUM hardware schematics and PCB files, providing a complete design. Control board: Uses a TMS320F28035 DSP as the control core, implementing sampling circuits, IGBT drive circuits, communication circuits, etc.; 4-layer board design, size 110*60mm; Display board: Equipped with an LCM1602 display screen, 2-layer board design, size 109*79mm; Power board: Uses an STM32F103 microcontroller as the control core, implementing EMI, PV_ISO detection, PV voltage and current sampling, BOOST boost topology, H4 inverter topology, output EMI, GFCI leakage current detection, etc.; 4-layer board design, size 300*250mm....

I need a compact, reliable PCB that will serve as the power and control backbone for my quadruped robot. The board has to integrate three key blocks: a microcontroller for gait logic, a power-management stage that can accept both a 12S to 14S battery and an external 50.4 V 20 Ato 40 A DC/AC adapter, and high-current motor-driver channels for the four legs. Space is limited to roughly 200 mm × 160 mm, so component placement and thermal handling matter. Battery charging, voltage and current sensing, and protected power rails for the logic section should be built in. I’ll supply Reference schematics the moment we begin. Deliverables • Annotated schematic in Altium, KiCad, or Eagle • Complete, fabrication-ready Gerber/NC drill set plus pick-and-place files...

...proper placement and mechanism understanding) - Cup dispensing mechanism concept - Structural layout and mounting approach Fabrication-Level Drawings (Basic): - General fabrication drawings for structure and paneling - Not ultra-detailed production drawings, but build-understanding level Electrical & Control Architecture (Concept Level): - Basic control logic flow - System architecture (PLC/microcontroller level) - No detailed wiring diagrams required BOM (Basic/Indicative): - Major components list: - pumps - valves - grinder - brew group - tanks - No vendor-level deep sourcing required Fluid System Design (Concept Level): - Pipe routing - Pump placement - Flow direction - No detailed pressure/thermal calculations required --- CLEAR LIMITATIONS (TO CONTR...

I need a microcontroller-based motor controller for a BLDC motor using Field-Oriented Control (FOC). The system should incorporate encoders as sensors. Key requirements: - Control a BLDC motor - Implement FOC - Utilize encoders for feedback Ideal skills and experience: - Expertise in FOC and motor control - Experience with encoders and microcontroller programming - Background in embedded systems and electronics Please provide relevant work experience in your bids.

I'm looking for an experienced Arduino programmer to create a microcontroller-based shooting target system. The system will feature 20 targets spread over a wall, with individual LEDs that randomly light up and a sound effect when a target is hit. Key Requirements: - 20 targets with individual LEDs - LEDs randomly lit - Arduino-based microcontroller - Sound effect on hit Ideal Skills and Experience: - Proficiency in Arduino programming - Experience with individual LED control - Knowledge of sound integration with microcontrollers - Background in electronics and circuit design Please provide relevant experience in your bids.

...high-school students, absolute electrical safety and clear operating instructions are essential. To make the project reproducible, I will need: • A working prototype capable of at least three distinct strength settings and a demonstrable off-site trigger via remote. • Full schematic, PCB (or perf-board) layout, and BOM with readily available components. • Firmware or control code (if a microcontroller or Bluetooth module is used) plus a brief comment guide. • Step-by-step assembly and usage guide, including safety notes that a teacher can follow. Acceptance criteria: the finished unit must repel a 10 g iron slug a minimum of 3 cm at the highest setting, run safely from a 12 V DC source, and survive continuous operation in five-minute demonstratio...

...shows the remaining time, counting down in real time. 3. When the three minutes expire the screen simply replaces the countdown with a clear “Game Over, move to next zone ” message + a buzzer or light; 4. Once the controller is set back the system must reset itself, ready for the next player. Hardware thoughts so far: magnetic (reed or Hall) sensor to detect lift, an Arduino or comparable microcontroller running the timer logic, and a compact OLED display for each station. I am open to part recommendations if they shorten development or improve reliability, but please keep the overall design simple and cost-conscious. Deliverables I expect: • Schematic and parts list for one station, scalable to six • Clean, well-commented Arduino sketch compiling und...

I’m building a small desktop-sized robot whose single purpose is to press real-world buttons for me while I’m miles away. The device must execute precise, complex multi-axis motions, then recover to a home position so it can be triggered again. I already know it will live on an ESP32, Arduino or a comparable microcontroller, but I need an experienced partner to turn that concept into a reliable, working prototype. Here’s the vision. A lightweight end-effector reaches out, lines itself up, and delivers a repeatable press with enough force to register the button yet gentle enough not to damage it. Everything is driven from a secure web interface so I can log in from any browser, watch the robot’s status, and command a press in real time—no local Bluetoot...

...through-beam or laser photoelectric sensor to detect items passing through a chute and send signals to a counter/display unit. --- Project Scope: I need someone to: 1. Design a reliable counting system using: - Through-beam or laser sensor (must detect clear plastic bottles) - Counter/display unit (industrial or microcontroller-based) 2. Provide: - a built out system with instructions , Sensor + Counter + 3. (Optional but preferred) - Arduino or microcontroller code (if applicable) - Recommendations for improving speed and accuracy --- Key Requirements: - Must handle high-speed flow (100+ items per minute) - Must accurately detect clear and semi-transparent plastic bottles - Must minimize double counts and missed counts - System should be l...

...sensors near the faucet handle; when a hand approaches, the valve opens and, once no movement is detected, a built-in timer shuts the flow after a short delay for rinsing. Here’s what I need from you: • An electronics solution built around motion sensors positioned at the handle area, with a timer-based automatic shut-off. • A clear wiring diagram, component list and recommended suppliers. • Microcontroller or off-the-shelf control module code/firmware that handles motion detection, debounce, and the adjustable shut-off timer. • Mechanical integration details—housing or bracket concepts that keep the sensor dry yet responsive and can be 3-D printed or machined. • An installation and calibration guide that a non-specialist can follow. I&rsqu...

...assets for a new hardware product and would like to bundle all tasks into one project. First, I want a clean Bill of Materials that lists every resistor, capacitor, micro-controller, sensor, connector and cable I will use. Each line must include a verified manufacturer part number so I can hand the file straight to purchasing with no extra work. Once the components are locked in, I need microcontroller firmware generated. Please write it to conventional industry standards—clarity, commenting and safe-coding rules (e.g. MISRA, CERT or equivalent) are essential because this code will be maintained by more than one engineer over its life-cycle. I would also like the full, well-documented source code delivered alongside the firmware. Again, adherence to accepted industry con...

I need an advanced microcontroller setup for a sequential rain sampler. The primary function is to detect when rain begins and to manage the collection of rain into 11 to 20 bottles in a sequential manner. Key Requirements: - Microcontroller to detect rain start - Control sample timing - Manage collection into 11-20 bottles Ideal Skills: - Experience with microcontrollers - Programming for automation and sensing - Familiarity with rain detection sensors - Ability to manage sequential operations

I’m putting together a fully-documented Wi-Fi enabled system built around an STM32 microcontroller and I need every piece of collateral wrapped up in one hand-off. Here’s the scope I’d like you to cover: • A clean, component-level BOM with manufacturer part numbers for everything on the board, plus individual notes on the inductor, GFCI and transformer so I can source or substitute them without guesswork. • Well-commented STM32 firmware and full project source so I can recompile or extend it later. • A Wi-Fi remote-monitoring app that shows real-time data, issues alerts/notifications, and logs data with export capability. Any lightweight cross-platform stack is fine as long as setup is straightforward. • A clear wiring diagram that tie...

Project Overview: I developed a compact round PCB (~3cm diameter) device called Metrifit Gym Pro. The device uses an ESP32-C3 microcontroller and a VL53L1X Time-of-Flight distance sensor. The device is designed to work in two modes: USB Mode (Wired): Powered via USB-C Sends distance data to a tablet via USB (serial/USB communication) Battery Mode (Wireless): Powered by a Li-ion battery Rechargeable via the same USB-C port Communicates via Bluetooth (ESP32-C3) Current Problem: The PCB was manufactured, but it is not working correctly. Main issue: When connecting USB-C, the device is not powering up ESP32-C3 is not being energized No USB detection / no communication What I Need: I need an experienced electronics engineer to: Analyze the schematic and PCB (KiCad files) Identify ...

...is returned to the holder, the system resets automatically ⸻ Display Requirement (Important) • The display must be larger and clearly visible from standing distance • Suggested size: 2.4 inch to 5 inch screen • High brightness and good contrast are required for public environments • The display should be easy to read quickly (large numbers, simple layout) ⸻ Technical Requirements • Microcontroller: ESP32 (preferred) or similar • Display: larger screen (not small OLED) • Detection: magnetic switch, reed switch, or equivalent • Power: USB-C or stable 5V input • System must be stable for continuous daily use ⸻ Mechanical / Design Requirements • Integrated controller holder • Clean and professional enclosure &bu...

...cartridge itself is intentionally simple (passive storage + optional NFC tag). All processing is handled in the dock. This is a **first working prototype**, not a final production board. --- ## System Architecture (IMPORTANT) **Dock :** * Microcontroller * NFC reader * Display control * Power management * Edge connector interface **Cartridge :** * microSD card * passive NFC tag (no active reader) * LEDs (optional) * edge contacts The dock must interface cleanly with the cartridge via edge connector. --- ## Core Requirements ### 1. Microcontroller Preferred: * **Arduino/aTmega Leonardo** ( with additional esp 8266 (as a module) added for a wifi capabilities The MCU must support: * SPI (SD + display) * I2C (optional NFC depending on chip) * GPIO (LEDs, detect...

I need an electronics engineer to design a complete circuit schematic and PCB layout within a 95 mm × 95 mm board size. The PCB will integrate an ESP development board, a 12V relay, a GSM module, and a common power supply for all components. Detailed Requirements: 1. Microcontroller Section ESP32 development board All required pins must be brought out / interfaced clearly Antenna keep-out area should be considered for WiFi 2. Relay Section 12V relay (30A) Optocoupler-based isolation preferred Transistor + flyback diode must be included Screw terminal for load output 3. GSM Module Section SIM800 Proper SIM slot footprint Audio pins not required 4. Power Supply Section Input: 12V DC Regulated outputs: 12V for relay 5V for GSM module 3.3V for ESP Buck converter preferred (780...

Designed and developed a compact, custom PCB for a wireless RFID-based attendance tracking system intended for school deployment. The board integrates an ESP8266 Wi-Fi microcontroller with an MFRC522 RFID reader, multi-color status LEDs, audio feedback, and battery monitoring in a single unified design. Key Deliverables: Full schematic design in EDA tool (KiCad/EasyEDA) Custom PCB layout with component placement and routing BOM (Bill of Materials) preparation Design review and validation Technical Highlights: ESP8266/32 Wi-Fi SoC for wireless data transmission via HTTS MFRC522 RFID reader via SPI interface for card/tag detection RGB status indicator LEDs (Green, Blue, Red) with current limiting Active buzzer for audio feedback on scan events Battery voltage monitoring via ADC vol...

I need a complete design for a compact consumer-electronics board that revolves around a PIC microcontroller. The scope spans three tightly-linked parts: • PCB hardware – Produce the schematic and multilayer layout in Altium Designer, include all libraries you create, and deliver the full manufacturing package (Gerbers, drill files, pick-and-place, and a PDF schematic). • MCU firmware – Write well-commented code in MikroBasic (or another PIC-friendly tool if you justify the switch). The firmware must read multiple sensors, exchange data through an efficient serial protocol, and use smart power-saving modes to stretch battery life. Please supply project files, compiled HEX, and a short flashing guide. • PC interface – Build a Windows utility in VB.NE...

...Your task is to: * Complete PCB routing based on the provided schematic * Make the PCB layout as small and compact as possible * Follow all JLCPCB design rules and manufacturing constraints * Ensure proper trace width, spacing, grounding, and signal integrity * Optimize power and signal routing for stable performance STM32 Blue Pill / I/O Requirements: * Proper routing for STM32F103C8T6 microcontroller pins * Include required GPIO connections (I will provide details in schematic) * USB / UART / power pins must be correctly routed * Decoupling capacitors and power lines must follow best practices * Ensure stable 3.3V power distribution Requirements: * Experience with PCB design and routing * Familiar with EasyEDA (preferred), KiCad, or Altium Designer * Knowledge of JLCPCB ru...

...needs a round of component swaps—specifically the main microcontroller. All other aspects of the board stay the same; I only need the schematic and layout touched where these packages sit. You’ll receive the current design files based on Protel and the datasheet for the new microcontroller. The job is to drop-in the replacement parts, adjust footprints or pin mapping if required, reroute any affected nets, and make sure the board still passes all ERC/DRC checks. Once that is clean, regenerate the updated Gerbers, BOM, and pick-and-place data so I can push the design straight to fabrication. Deliverables • Updated schematic and PCB project files • Clean ERC/DRC report showing zero errors • Revised BOM with the new ICs and microcontroller...

I have an ESP32-based IoT concept that now needs to move from breadboard chaos to a clean, reproducible physical build. The design includes several sensors for data collection, a couple of actuators for real-world interaction, and the ESP32’s own Wi-Fi/BLE communication to push...sketch that confirms each sensor, actuator, and communication path is alive. Deliverables • Refined schematic with BOM • Wiring or small-run PCB layout ready for manufacture or strip-board build • Step-by-step assembly guide with photos or diagrams • Simple Arduino sketch proving all peripherals function together Please include past work that shows you have taken an ESP32 or similar microcontroller project from prototype to finished hardware. Links to photos, repos, or ...

...vision, user experience, and overall look; I need an electronics engineer who can turn the concept into a working prototype. You’ll be focusing on the core electronics and firmware. Because your background is in electronics engineering and you’re most comfortable with wireless communication modules, I’d like you to specify the PCB, select components, and code the stack around a low-power microcontroller. For long-range, low-cost connectivity I’m leaning on LoRa, so experience with Semtech SX127x/SX126x-class radios, LoRaWAN or custom LoRa mesh, and the associated RF layout practices is essential. Key goals • Impeccable reliability—messages must never be lost, even when links drop. • Voice as well as text, so an efficient audio codec, ...

...drop straight into my test rig. Scope of work • Design a robust control circuit that can drive a DC motor reliably in an industrial environment, taking into account noise immunity, thermal protection and fault handling. • Produce a clean schematic and a production-ready PCB layout. • Select all components with realistic lead times and provide a detailed BOM. • Assemble, program (if a microcontroller or gate driver IC is used) and bench-test the prototype, then ship it to me ready for integration. • Supply all design files (GERBERs, CAD source, firmware, test results) so I can replicate or scale production later. Acceptance criteria The prototype must: 1. Vary motor speed smoothly from 0 % to 100 % under a 24 V DC supply. 2. Deliver at le...

Need to add support to a rugged gauge computer so it can process measurements coming from Bluetooth-enabled calipers, micrometers, dial indicators and similar tools. The hardware uses a TechNexion PICO-IMX6U SOM (MAUI app running on custom embedded Android 9) and an STM32G473QCT6 microcontroller that interfaces with a variety of analog and digital sensors. Deliverables • Interface to establish BLE connections and process the stream of measurements. • Customizations to the embedded Android system. • Changes to the STM32 firmware (if needed).

...first working prototype. This is a from-scratch development project (not cloning any existing product). We may take high-level reference from existing ECG devices, but the design, firmware, and implementation must be original. --- **Project Scope:** **1. Hardware Design** * ECG circuit design (low-noise analog front-end) * Component selection (preferably medical-grade or equivalent) * Microcontroller integration (ESP32 preferred) * Power management (Li-ion battery + charging) * BLE connectivity design **2. PCB Design** * Schematic design * PCB layout * Gerber file generation * BOM finalization **3. Firmware Development** * ESP32 firmware development * BLE communication (device ↔ mobile app) * Real-time ECG data acquisition * Data packet transmission * Basic power ma...

...interconnected boards: a Main Controller Board and a Front Panel UI Board. Once the hardware is manufactured and verified, our student team will begin writing the firmware next semester. I will handle the final design reviews, but we need a professional to do the 90% heavy lifting to ensure the boards are robust, electrically quiet, and ready for fab. 1. Main Controller Board Requirements: Microcontroller: Must use the exact ESP32-S3-WROOM-1-N16R8 module (16MB Flash, 8MB PSRAM). Power Supply Stage: Needs to accept a wide range of lab/field inputs (e.g., 12V-24V DC or 24V AC) and step down to 5V and 3.3V cleanly to power the logic, sensors, and communication modules. Relay Control: 8x output channels to drive external lab equipment (either onboard mechanical relays, SSRs, or b...

...wearable-tech prototype that is already built around a dedicated microcontroller, and I now need a skilled IoT engineer to pull the hardware and firmware pieces together and prove they work under real-world conditions. The core electronics are stable; what I’m missing is the systematic integration, end-to-end functional testing, and clear documentation that will let us move toward small-batch production without surprises. Your mission is to connect the microcontroller firmware, power management, and communication stack with the companion mobile app and backend that my software team is finalizing. I’ll supply full schematics, current firmware source, and the test jigs we use in-house. I need you to: • Review the existing microcontroller code and ha...

...first working prototype. This is a from-scratch development project (not cloning any existing product). We may take high-level reference from existing ECG devices, but the design, firmware, and implementation must be original. --- **Project Scope:** **1. Hardware Design** * ECG circuit design (low-noise analog front-end) * Component selection (preferably medical-grade or equivalent) * Microcontroller integration (ESP32 preferred) * Power management (Li-ion battery + charging) * BLE connectivity design **2. PCB Design** * Schematic design * PCB layout * Gerber file generation * BOM finalization **3. Firmware Development** * ESP32 firmware development * BLE communication (device ↔ mobile app) * Real-time ECG data acquisition * Data packet transmission * Basic power ma...

...Smooth curves + angled surfaces (not boxy) - Panel lines, vents, and surface detailing - Front circular “energy core” (for LED lighting) - Grip should be ergonomic and angled --- FUNCTIONAL REQUIREMENTS (VERY IMPORTANT): The model MUST include internal space and mounting areas for: 1. Battery: - Type: 18650 lithium-ion - Orientation: inside grip - Include secure holder or slot 2. Microcontroller: - ESP32 (standard dev board size ~55x30mm) - Include mounting posts or bracket 3. Boost Converter: - Approx size: 40x25mm - Mounted near main board 4. Charging Module: - USB-C port must be accessible from outside - Clean port cutout 5. Trigger System: - Space for microswitch - Trigger opening in shell 6. LED System: - Front circula...

I am working on a project involving a custom filament motion sensor based on the RP2040 microcontroller. The project is built on an open-source firmware available on GitHub (the roadrunner-filament-sensor repository). The hardware setup includes an AS5600 magnetic rotary encoder and an IR sensor to detect filament presence. It is currently designed to communicate with Klipper using a custom protocol. I’m running into issues with Klipper integration, so instead I want to directly access the sensor’s raw data on my laptop over USB. Specifically, I want to read real-time values such as angle, accumulated turns, and filament presence. I have full access to the firmware source code from GitHub, and I’m using the USB serial version of the firmware. The goal is to modif...

I need compact, well-documented DMA firmware whose sole job is efficient data transfer. The code must be tuned for burst transfers and interface cleanly with an SPI peripheral. The microcontroller already exposes a DMA engine; what’s missing is the firmware layer that sets up channels, kicks off each burst at the right moment, and signals completion back to the application. Timing is critical, so I expect zero-copy handling, minimal CPU intervention, and clear interrupt-driven logic. Please write in C (or C++ if you can justify it) and include concise inline comments plus a short README that explains register usage, buffer alignment requirements, and how to scale the solution if I later choose to add UART or I2C. Deliverables: • Source code ready to build with my e...

I need firmware developed for a PIC16F84 microcontroller to operate a motorized door controller. The system should be able to both open/close and lock/unlock the door, controlled via buttons or switches. Or I need someone who can analyze my good chip and make me a copy. The good chip is locked and the company that wrote it no longer supports this nor do they have any information on it. Key requirements: - Firmware for PIC16F84 - Control functions: open/close and lock/unlock - Activation via buttons/switches and Key Ideal skills and experience: - Embedded systems development - Experience with PIC microcontrollers - Firmware programming, especially for motor control

I have a consumer-electronics concept that centres on a single microcontroller, and I need a complete double-layer PCB designed from schematic capture right through to ready-for-fabrication Gerber files. All component footprints must follow standard SMT practices and respect common DRC limits for low-cost board houses. What I will hand over: • A functional block diagram and the chosen microcontroller part number • Basic electrical requirements and I/O list and BOM What I need back: • Clean, well-annotated schematic • Optimised two-layer board layout with clear power and ground routing • Fabrication package (Gerber, drill, pick-and-place, and assembly PDFs) • Editable project files from your preferred tool (Altium, KiCad, or Eagle are al...

...(schematic, layout, Gerber, BOM) - Functional prototype support - Firmware for precise motor control - Support for future upgrades Location: Remote acceptable. Preference for Mumbai-based candidates (or those willing to coordinate with local mechanical team). To Apply: - Share your portfolio (hardware + firmware projects) - Brief overview of your development process - Preferred microcontroller platform - Timeline and availability *Shortlisted applicants will be asked to sign an NDA before full concept is disclosed.*...

...what I expect to receive: • Complete electronic design files (schematic, PCB layout, and all source files) suitable for production—Altium, KiCad, or equivalent are all fine as long as they’re clearly documented. • Firmware that stores multiple interval profiles in non-volatile memory, drives the LED display, and supports start / stop / reset via tactile industrial buttons. Any mainstream microcontroller platform is acceptable; please include commented source code and a straightforward method for field firmware updates. • Mechanical design for a weather-sealed enclosure. The unit will be mounted outdoors, so I’m looking for at least IP65 protection, UV-resistant materials, and a mounting solution that tolerates vibration. 3D models in STEP for...

...116-[345,35]...311-[345,200],312-[345,205],313-[0.0],314-[0,0] The above data gives like Triangle image from the left position from 345, and top position can be 113 based on trigger. Also it says 312 is end position of the mark. From the above details, we are looking a FPGA solution that read the data from CCD Sensor and store approach 32Mb data then process it send required values to microcontroller through serial communication. Ideal skills and experience for the job include: - Proficiency in FPGA design and programming. - Experience with CCD sensors and their integration with FPGAs. - Knowledge of image processing algorithms and techniques. The successful freelancer will be expected to: - Design and implement the TCD1304 CCD sensor FPGA project according to the desi...

I'm seeking an experienced firmware engineer to develop and modify embedded systems firmware, specifically for automotive control system using PIC microcontrollers. Key Requirements: -...seeking an experienced firmware engineer to develop and modify embedded systems firmware, specifically for automotive control system using PIC microcontrollers. Key Requirements: - Develop and modify firmware for PIC microcontrollers - Focus on control systems for various applications - Experience with embedded systems and control algorithms Ideal Skills and Experience: - Proficiency in PIC microcontroller programming - Strong background in embedded systems and control systems - Experience with communication protocols Please provide examples of previous similar work and a brief approach t...

Hi, are you looking for a professional PCB designer to develop an ESP32-based control board with Ethernet, 24V industrial I/O, and EMC-compliant design ready for production? I am an Electronics & PCB Design Engineer with five plus years experience in embedded systems, industrial electronics, and multi-layer PCB design, and I can deliver a robust, manufacturable solution. I will design a complete schematic integrating ESP32 (WROOM-32), W5500 Ethernet, TM1637 display interface, and all required digital inputs/outputs with proper isolation and protection. The 24V domain will be carefully handled using **DC-DC regulation (24V → 5V → 3.3V)**, with transient protection (TVS, flyback diodes, fuses) for loads like door latch and solenoid valve. Outputs will be driven using suitable ...

...(DTC) Key Components of the Hardware Setup Induction Motor (IM): Often a 3-phase, 1 HP (or similar low-power) squirrel cage induction motor is used for testing bench-scale prototypes. Power Converter: A three-phase IGBT-based inverter is common, often employing Space Vector Modulation (SVM) to feed the motor. Controller Board: A digital controller, such as a DSP (e.g., TI TMS320 series) or a microcontroller (e.g., STM32), is used to implement control algorithms and generate gate pulses. Gate Driver Circuitry: Used to drive the IGBTs, including optocouplers for isolation to protect the controller from high power voltages. Sensors: Hall effect current sensors and voltage sensors are crucial for feedback control. Loading Arrangement: A DC generator, eddy current brake, or mechanical...