Arduino jobs

...connected via JST-XH cable. • 3-way SPDT switch(on, off, timer) connected to the PCB via a JST-XH cable. • 3V DC motor with peak current around 3A, connected to board via JST-PH(2pin) • 2 mounting points (M3 size to allow M2.5 bolts) Here’s what I’m after: • Schematic and PCB layout for a low-noise, low-current driver that powers a small motor • Integrated minimalistic timer solution(NO computing, arduino, etc), hard-set to around 10-15 min on, 10-15 min off (possibly via oscillators?) • All source files (KiCad, Altium, or Eagle), ready-to-manufacture Gerbers, plus a clear BOM with part numbers and footprints • Basic assembly notes so I can hand-solder or outsource the build with confidence Please keep the board footprint reas...

...building a working prototype of a small interactive toy. The prototype requires: A pop-up mechanism (using solenoids, springs, and/or small motors). Integration with Raspberry Pi or Arduino for control. Wiring/programming to operate the mechanism. A simple phone/web app to trigger the toy remotely. Requirements: Experience with mechanical design and prototyping. Hands-on skills with Raspberry Pi/Arduino electronics. Must show past project work (photos, CAD, or GitHub). Deliverable: A working physical prototype (not just design files) that demonstrates the pop-up mechanism controlled by Raspberry Pi/Arduino. Budget: Budget will be discussed based on scope and experience. Please provide: What’s your estimated cost? How did you arrive at that number ...

There and 2 bottons on the device. I want to control the speed of stepper motor with it, and a DC motor with it. I want to connect a fewrelays to it , and switch on and off some 240 volt industiural machines. This is for learning process.I want someone to teach me how to do this in XOD software. Datasheet: User guide: Test Program:

...Wi-Fi before Blynk integration. System Overview Hardware Primary MCU: STM32H723VIT6 (main firmware; Arduino sketch runtime) Connectivity MCU: ESP32 running Blynk NCP binary (not modifiable) Dealer flashing: Android Dealer 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 Bo...

Project Brief: Stealth-Modified Automatic Parking Disc (Certified ...fully automatic. No user interaction should be needed after parking. • No visible alterations (e.g., wires, unusual controls, abnormal movement patterns). • Power should remain efficient — preferably still battery-powered or with a hidden upgrade that doesn’t draw attention. Ideal Freelancer Profile: I’m looking for someone with experience in electronics, microcontroller programming (e.g., Arduino), or embedded systems. Ideally, you’ve worked with consumer electronics, automotive modifications, or smart devices before. Both functionality and stealth are equally important for this project. ⸻ Let me know if you have questions or need specific details (such as device models). Loo...

Need tutor for the group design project Tool and everything mentioned in the Pdf file i will need professional academic tutor who can handle project perfectly project will have weekly updates + full final report which have simulation MATLAB or Arduino After this project will have more projects incoming so plz come with sample work also You all can bid i will reply and will check the sample work and will select who has good sample work and quality Tutor must be active who can reply faster for students answers Check pdf for more information Thanks Dr. Khan

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.

...attached PowerPoint for images. When complete, boards 1, 2, 3, and 5 will be ordered complete, soldered, ready to install. The control board will be ordered assembled/populated with the exception of the TrinketM0 and the Adafruit VL53L0X Time of Flight Distance Sensor - ~30 to 1000mm Deliverables • Complete circuit schematic and component list • Firmware or code that drives the automatic logic (Arduino, ESP-based, or a platform you recommend) • Clear wiring/assembly guide so I can replicate the build and test it confidently • Brief usage notes covering calibration of the daylight threshold and motion sensitivity Acceptance Criteria • LEDs stay ON in daylight and OFF at the desired darkness level after dark regardless of Distance sensor input....

I am looking for an electronics hobbyist, student, or trainer to create 10 short practical video tutorials (8-10 mins each) on basic IoT/Electronics topics. Project Requirement: You must record your REAL HANDS using a physical kit (Arduino, Raspberry Pi, or similar). NO AI Avatars allowed. Real physical demonstration is mandatory. Face cam is NOT required. (Top-down view of hands + kit is perfect). English Voiceover required (Clean audio, can be AI-polished but must match the video). Video Topics (Choose any 10): Blinking an LED with Arduino Using a Breadboard & Resistors Reading Temperature (DHT11 Sensor) Controlling a Servo Motor Using a Push Button as Input Soldering a basic component (if you have tools) Interfacing an LCD Display Ultrasonic Distance Sensor Introduc...

...tackle typically start with a concept sketched in Proteus or Multisim, move into schematic and PCB work in Altium, and finish on the bench or in a virtual lab via LabVIEW or TinkerCAD. Microcontroller and embedded targets rotate between Arduino-based boards, Raspberry Pi modules, and mid-range FPGAs, so comfort switching among those platforms is essential. Core expectations • Design or refine circuits and document the rationale behind every component choice • Build and verify MATLAB/Simulink models that correlate with hardware behaviour • Prototype on Arduino, Raspberry Pi or FPGA as the problem dictates and capture results in a concise technical report • Deliver well-formatted reports (Word or LaTeX) that include schematics, simulation plots, ...

I need a seasoned PCB designer located in Pakistan who can take a concept right through to production-ready files. The boards you create must interface reliably with Arduino, Raspberry Pi, and FPGA modules, so familiarity with their pinouts, signalling levels, and power budgets is essential. You’ll start by translating my functional requirements into clear schematics, then handle the full PCB layout, component selection, and DFM checks. I expect well-organised source files plus manufacturing outputs—Gerbers, drill files, pick-and-place, and an accurate BOM—with every revision traceable. If you prefer Altium, KiCad, Eagle, or OrCAD that’s fine; just let me know which environment you’ll use so I can open the files on my end. Because these boards may...

Need tutor for the group design project Tool and everything mentioned in the Pdf file i will need professional academic tutor who can handle project perfectly project will have weekly updates + full final report which have simulation MATLAB or Arduino After this project will have more projects incoming so plz come with sample work also You all can bid i will reply and will check the sample work and will select who has good sample work and quality Tutor must be active who can reply faster for students answers Check pdf for more information Thanks Dr. Khan

...format from my own application or directly through my broker; the code simply has to subscribe, parse the JSON, pull out the text field, and push it to the display. No animations or extra status indicators are required at this stage—just clear, readable text. Subscribe Topic : iot_display/application_to_display Publish Topic : iot_display/display_to_application Preferred tool-chain is Arduino IDE or PlatformIO with a familiar MQTT library such as PubSubClient or AsyncMQTT. Please keep the pin assignments and Wi-Fi credentials easily configurable in a header or defines section, and make sure the loop stays non-blocking so the device can reconnect gracefully if the network drops. Deliverables • Complete, well-commented source code and any custom libraries &b...

I need a wearable device to detect sleep-time bruxism. Requirements: - Monitors muscle activity. - Alerts with sound when clenching. - Collects clenching duration and frequency data. - Must reside in india ( bangalore) Ideal Skills: - Arduino/ESP32 development - Python/TensorFlow Lite (microcontrollers) - Embedded systems & electronics (mic setup, signal processing) Hardware can be procured by me or reimbursed. Urgent requirement

...vGamepad / XInput joystick targeting logic driven by CV detections Integrate and test with Cronus Zen (HID behavior, stick output, signal timing) Work with microcontrollers (Arduino / Portenta / similar) in real-time input pipelines Test directly on Xbox or PlayStation consoles (physical hardware required) Optimize for snap, lock, weld, and track behavior with precise joystick control Debug latency, drift, misalignment, and tracking edge cases Required Experience (Must Have) Cronus Zen experience (scripts, HID behavior, real-world tuning) Ownership of Xbox or PlayStation console for live testing Microcontroller experience (Arduino-class or higher) Strong background in computer vision (YOLO or similar real-time detection pipelines) Experience with transparent overlays (Wind...

I'm looking for an experienced Arduino programmer to set up a project on an Arduino Nano. Requirements: - 2 PWM outputs - 200Hz frequency - 0-10 second ramp-up time - Up to 2 amps per channel - Triggered by a manual switch - Outputs to control a coil on a hydraulic valve Ideal Skills and Experience: - Proficiency with Arduino programming, especially with PWM control - Experience working with Arduino Nano - Knowledge of hydraulic systems and valves - Ability to implement adjustable ramp-up times Please provide your approach and relevant experience.

...across a 20-intersection grid. Second, the Blockchain Voting System needs an end-to-end verifiable ballot flow. I expect audited Solidity or Substrate contracts, mobile-friendly front-end, zero-knowledge vote secrecy, and a testnet demo with at least fifty dummy voters that passes a public audit script. Third, the Solar-Powered Smart Watering System will run on a low-power microcontroller (ESP32/Arduino acceptable), read soil and weather data, and autonomously schedule irrigation while managing a small photovoltaic battery budget. A simple web or mobile dashboard should visualise the data. Alongside these flagships, my lab is experimenting with plant-disease image classifiers, self-driving delivery rovers (ROS2, SLAM, path-planning), and GPT-style tutoring chatbots. Each modul...

...learners to voice ideas, encourage emerging leaders to delegate effectively and challenge every team to debug issues together before asking for help. • Debrief at session’s end, helping students reflect on what worked, what didn’t and how they collaborated. You should feel comfortable managing 20–25 enthusiastic learners, mediating team disputes on the fly, and adapting activities when hardware (Arduino, micro:bit or similar kits) misbehaves. A collaborative mindset is critical—our instructor group plans each session collectively and swaps roles mid-stream when necessary. If you excel at turning technical tasks into opportunities for communication, leadership and creative problem-solving, I’d love to hear how you would approach 1 day roboti...

I’m building an industrial-grade control panel that runs entirely on an Arduino and drives motors through fully programmed sequences—no manual switches or computer dashboards, just reliable, repeatable automation once the sketch is flashed. Here’s what I need: • An Arduino sketch that steps each motor through the required sequence, including start-up delays, speed changes, direction (when applicable), and safe shut-down logic. • A wiring diagram that shows every connection from the Arduino pins to motor drivers, relays, fuses, and any protection or feedback components you feel are essential for industrial duty. • Parts list with exact component ratings so I can source hardware that withstands continuous operation. • Bri...

...and integration environment. Each cart is driven using two rear-mounted continuous rotation servo motors, which provide both propulsion and steering through differential speed control. Three infrared (IR) sensors are used for line detection and path following. Sensor inputs, control logic, and actuator commands are implemented and visualised within a Simulink model running in real time on an Arduino-based platform. The leader cart operates at a manually set speed, adjusted using a physical input such as a potentiometer or control knob. Directional control is achieved by varying the relative speeds of the two rear-mounted continuous servos. The leader cart’s control logic is implemented in Simulink, allowing direct modification and tuning of control parameters. The follow...

...calculate the matching torque, choose the right motor model, and design a supporting drive chain that is both robust and cost-efficient. Beyond the motor itself, factor in everything a working prototype will need: power supply, motor driver, wiring, protection devices, couplings, mounting hardware, and—if electronic control becomes necessary—an MCU or simple relay logic. Feel free to recommend Arduino, Raspberry Pi or any other control hardware only if it truly adds value; otherwise, keep the design as lean as possible. Deliverables I need from you • Complete bill of materials with part numbers, vendors, and estimated costs • Engineering calculations showing how the chosen motor RPM meets the load-rotation requirement (include torque and duty-cycle assum...

I have an Arduino Opta PLC that must act as the Modbus RTU master for two drives—a Siemens SINAMICS V20 and a Power Electronics VFD. The goal is simple: a user touches a Cloud- Arduino touchscreen, enters a ratio such as 30 : 70, presses “Run,” and the PLC then runs each VFD for the correct proportional time slice before repeating or stopping as configured. What I need from you • Ladder-logic code written in the Arduino PLC IDE that handles Modbus polling, ratio calculation, timing, and safe start/stop sequences for both drives. • A detailed step-by-step guide (screenshots encouraged) covering wiring, RS-485 settings, drive parameter maps, code deployment, and how to expand or tweak the timing logic later. Acceptance will be based on:...

...filtering, and robustness Design should be suitable for eventual FCC/CE/UKCA compliance Who This Job Is For: Engineers with real STM32 USB HID experience Experience shipping commercial hardware Comfortable designing in EMI-challenging environments Able to explain why a design choice is made, not just implement it Comfortable working under NDA with exclusive IP assignment This Job Is NOT For: Arduino-only designers Generalists who “figure it out as they go” Engineers who jump straight into layout Anyone who cannot justify grounding, filtering, or layer decisions Required Screening Questions (Answer All): Applications without clear technical answers will be ignored. Describe a product you’ve shipped where USB and analog sensing operated near a noisy...

...confidently with Arduino Uno and Nano boards using the Arduino IDE If you can weave in elements of mechanical design or strategy for competition scoring, even better, but the items above are mandatory. What I’d like to see from you • A brief outline of a 3 week training roadmap with milestones • Examples (video or repo links) of student projects you have supervised that involve multiple sensors and clean, well-commented code • Your availability for 1- to 1.5-hour sessions • Any suggestions for low-cost components or kits that keep parts sourcing simple Other Technical Requirements: The training will focus specifically on the Arduino Nano microcontroller. The trainer must be proficient in working with the following components and...

I’m building a discreet, necklace-style safety device that can be worn every day but instantly turns into a lifeline. With one press of its pani...SMS/notification and voice call triggered through mini button • Plug-and-play GPS add-on that activates when pressing button and send live location to the parents • Low-power design: rechargeable battery targeting at least 72 h standby with BLE advertising • Simple companion app (iOS or Android first is fine) to receive alerts, show live map, and manage contact numbers. I’m open to the stack you prefer—Arduino, ESP32, Nordic nRF, custom PCB—so long as the final prototype is compact, stable and manufacturable. 3D printing for the shell is acceptable during this phase; final enclosure aesthetics can f...

I’m building a discreet, necklace-style safety device that can be worn every day but instantly turns into a lifeline. With one press of its pani...SMS/notification and voice call triggered through mini button • Plug-and-play GPS add-on that activates when pressing button and send live location to the parents • Low-power design: rechargeable battery targeting at least 72 h standby with BLE advertising • Simple companion app (iOS or Android first is fine) to receive alerts, show live map, and manage contact numbers. I’m open to the stack you prefer—Arduino, ESP32, Nordic nRF, custom PCB—so long as the final prototype is compact, stable and manufacturable. 3D printing for the shell is acceptable during this phase; final enclosure aesthetics can f...

Job Summary: Design and Fabricate Two Arduino Mega Shield PCBs for Hexapod Robot Overview: Design, fabricate, assemble, and test two PCBs to modularize wiring for an 18-actuator hexapod robot. Replace point-to-point wiring with DB-19 connectors and a combined H-bridge board. Deliverables: Arduino Mega DB-19 Control Shield (6 units) Passive shield routing Mega pins to 2× DB-19 connectors (one per leg pair) Each DB-19: 6× PWM, 3× EN, 3× IS, 3× POT, VCC, GND, 2× spare 2× 3-pin serial headers for inter-MCU communication (TX/RX/GND, crossed cables) Standard Mega shield footprint; keep unused pins accessible Combined 3-Actuator H-Bridge PCB (12 units) Integrate 3× BTS7960-class drivers per board Connectors: 1× DB-19 (control), 3...

I HAVE 10 ACRYLIC PLANET WITH SUN INSTALLED IN A SCHOOL WALL THERE IS A BUTTON UNDER EACH PLANET AND SUN WHEN A KID PRESSES A BUTTON ON SPECIFIC PLANET MP3 AUDIO SHOULD PLAY DISCRIBEING THAT PLANET, AND THERE IS A LED RING 12V DC ON EACH PLANET THAT SHOULD BLINK WHEN THE AUDIO PLAYS I HAVE A DF MINI AND A NANO CH340, I CAN UPGRADE THE HARDWARE IF REQUIRED

...cut-off, fail-safe conditions) Ensure reliable coordination between all components Assist with debugging and logic testing Explain code structure for future development Deliverables: Fully working source code Pin mapping and wiring guidance Brief documentation explaining system logic and flow Remote support during initial testing, if required Required Skills: ESP32 / ESP8266 programming (Arduino IDE or similar) Embedded C / C++ Experience with sensors, actuators, and solenoid control Hardware–software integration Debugging and optimization...

Embedded Hardware + PCB Developer Required ESP32-C3 and Audio Hardware Exper...2-layer and 4-layer PCB design Production-ready layout techniques EMI, ESD, and reliability considerations Engagement Scope Remote collaboration Clearly defined scope, milestones, and timelines NDA required before detailed technical discussion Potential for continued work based on performance Not Suitable For Freshers or interns Candidates without hands-on audio hardware experience Arduino-only or hobby-level backgrounds Applicants seeking training or learning exposure Ideal Candidate Profile Experience taking ESP32-based hardware from concept to production Proven work on audio-enabled embedded devices Ability to own hardware design end-to-end Strong focus on quality, timelines, and acco...

...data, tweaks offsets, and repeats. That data-collection loop is the real bottleneck, and across different PCB batches the results still drift. I want to collapse the calibration window from minutes to seconds while tightening unit-to-unit consistency and, ultimately, moving toward a batch-level or fully automated station. You’ll start by reviewing the existing schematic, BOM, and firmware repo (Arduino IDE/C/ESP-IDF). With that context, I need concrete, production-ready recommendations—whether that means selecting a higher-resolution ADC, adding reference components, adjusting sensor front-end scaling, building self-test routines in firmware, or scripting an automated jig that pushes coefficients over UART. Deliverables—kept lean and practical: • Writte...

...PCM5102A and the chosen SD interface so I can reproduce your setup. • Document the buffering strategy you use (double buffer, ring buffer, DMA, etc.) so I can scale it later. Out of scope (don’t spend time here): MIDI parsing, note mapping, polyphony, UI work. Feel free to lean on ESP8266Audio or ESP32-audioI2S as reference material as long as the final code compiles cleanly in ESP-IDF or Arduino-ESP32 and keeps the public interface above. Deliverable checklist 1. Source code that, when flashed, plays a WAV from the SD card continuously and gap-free. 2. A one-pager (markdown is fine) covering PCM5102A wiring, SD lines, and any required menuconfig settings. 3. Explanation of the buffering scheme. 4. The header file defining the audio_* API ready for the nex...

Project Brief: Stealth-Modified Automatic Parking Disc (Certified ...fully automatic. No user interaction should be needed after parking. • No visible alterations (e.g., wires, unusual controls, abnormal movement patterns). • Power should remain efficient — preferably still battery-powered or with a hidden upgrade that doesn’t draw attention. Ideal Freelancer Profile: I’m looking for someone with experience in electronics, microcontroller programming (e.g., Arduino), or embedded systems. Ideally, you’ve worked with consumer electronics, automotive modifications, or smart devices before. Both functionality and stealth are equally important for this project. ⸻ Let me know if you have questions or need specific details (such as device models). Loo...

I need software to control and automate tasks via microcontrollers. Integration will be through a web application. Requirements: - Experience with microcontroller programming (e.g., Arduino, Raspberry Pi) - Strong skills in web application development - Ability to design user-friendly interfaces for automation tasks - Background in software-hardware integration Deliverables: - Web app for control and automation - Documentation for setup and usage - Support for initial deployment and troubleshooting Looking for someone with a robust portfolio and proven experience in similar projects.

...Fully working code (Arduino / Micro:bit / ESP32 preferred) Assembly instructions suitable for students 3. Classroom-Suitable Design The design must: Be robust and reliable (not fragile or temperamental) Use reasonably priced components Avoid complex calibration or tuning Be achievable with school-level tools and timeframes Support simple coding, not advanced robotics maths 4. Cost Transparency You must clearly state: Cost per robotic arm (AUD preferred) Breakdown of major components Any optional upgrades vs base build 5. Guarantee of Functionality You must be confident that: If the design is built exactly as specified, it will work No undocumented “tweaks” are required No hidden dependencies or missing steps exist Preferred (But Not Mandatory) A...

...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 guide. 6. Risks...

...positioning beacons that imitate surrounding APs or craft new BSSIDs so common geolocation APIs believe the device is elsewhere. • I want the option to flip between a fixed, pre-programmed location and real-time control. A simple web UI, serial command set, or lightweight REST endpoint is fine as long as switching takes seconds, not minutes. Deliverables 1. Fully commented ESP32 source code (Arduino framework or ESP-IDF). 2. Brief build guide covering required libraries, wiring, and any external modules or antennas. 3. Usage notes showing how to set coordinates, toggle modes, and verify spoofing success with a phone or mapping API. Acceptance criteria • GPS and Wi-Fi coordinates reported by at least one mainstream Android or iOS location app match the sp...

...pull-down resistors. The controller used is an Arduino Mega. MUX signal → A0 MUX select lines (S0–S3) → digital pins 2, 3, 4, 5 Enable → GND VCC → 5 V Copper rows → digital pins 22–30 This setup worked perfectly. I was able to read the data and plot a proper pressure map using Python. However, the problem started when I rebuilt the exact same circuit with a different Velostat sheet. This time, the Arduino serial monitor shows only zeros, with no pressure response. When I removed the pull-down resistors, I started getting random values even without applying pressure. To debug this, I tried: Changing resistor values Using pull-up instead of pull-down Verifying all circuit connections Replacing Velostat sheets Testing with ESP32 instead of...

...for electronics, including a chin compartment for a GoPro-sized webcam and a concealed rear compartment that can hold a Raspberry Pi 4B, Arduino Uno, GPS module, buzzer, and additional small components with generous space rather than tight fitting. All wiring must be routed internally through dedicated channels so that no wires are visible externally. The model should include proper mounting clips or brackets for the Raspberry Pi, Arduino, and webcam, realistic helmet wall thickness, allowance for internal padding space, and an accessible method (such as a removable panel) to reach the rear electronics bay. Accurate CAD models of the Raspberry Pi 4B and Arduino Uno should be used for fitting. The final deliverable must include a clean, well-organized, fully parametr...

This project proposes the design and development of a fully integrated PCB-based GSM-enabled remote power control and monitoring system capable of switching high-voltage 110V/220V AC loads and monitoring three-phase electrical supply conditions. The system will be centered on a microcontroller platform functionally equivalent to Arduino, integrated directly onto a custom-designed PCB along with a GSM module, relay drivers, power regulation, and three-phase voltage sensing circuitry. Remote operation will be achieved via GSM (SMS-based control), allowing the client to securely switch loads ON/OFF without reliance on internet connectivity. The PCB will be engineered for industrial reliability, incorporating proper isolation between low-voltage control and high-voltage AC sections, pro...

...to 30W audio system Your job is to design both the electronics and the firmware. That means selecting the right FM tuner front-end, audio amplifier, microphone array, power stage, and any supporting components, then laying them out on a compact PCB around the ESP32. I expect a clean schematic, a production-ready board file, and a complete BOM. On the software side, please deliver firmware (Arduino or ESP-IDF—your choice) that boots reliably, scans and stores stations, triggers alarms, and recognises simple spoken commands locally or via an embedded voice-assistant library. Wi-Fi should be enabled for future OTA updates, but cloud connectivity is not required in this first build. Acceptance criteria • Hardware: compile-error-free schematic in KiCad or Altium, P...

...a Wi-Fi connected app/dashboard Deliverables: Fully working ESP32-based prototype on breadboard or PCB Schematics and wiring diagram Firmware that can: Read energy data from HLW8012/ATM90E26 or equivalent Control relay based on simple rules Report data over Wi-Fi Optional: Basic test script to demonstrate functionality with a low-voltage dummy load Required Skills: ESP32 development (Arduino IDE or equivalent) AC mains relay integration (safe, isolated) Experience with energy monitoring ICs Understanding of safety standards for prototype electronics Preferred Skills: PCB design experience Prior IoT or smart home device development Ability to provide recommendations for enclosure layout Budget: $500–$800 (adjustable based on experience and milestones) Timel...

I have designed a board using an STM32F417VG cpu. I am using this device with PlatformIO, arduino framework (stm32duino) and using the board genericSTM32F417VG in the configuration file. I have implemented a wired ethernet MAC using RMII and LAN8710A. When I try to compile demo code, I get errors like the following one amongst others. I have tried many solutions and cannot get them to work. bin/libdeps/genericSTM32F417VG/STM32Ethernet/src/utility/:37: error: 'ETH_MODE_HALFDUPLEX' was not declared in this scope 556 | = ETH_MODE_HALFDUPLEX; Scope of the project Essentially, I want to be able to compile the demo code for this processor. Ideally I would like to have operational wired ethernet, but since this requires hardware, I am happy

I need a compact printed-circuit board (maximum footprint 100 mm × 100 mm) that brings together an Arduino Nano, a TCA9548A I²C multiplexer, one MPU6050 IMU and four TOF200C laser distance sensors. The TCA9548A will handle all I²C traffic between the Nano and the sensors. The board must also drive four MG996R servos. My idea is to pair every TOF200C with one MG996R and lead each pair through a single RJ45 cable, so the PCB needs four RJ45 jacks that break out: • I²C SDA/SCL for the sensor • 5 V/GND for both devices • One PWM line for the servo I will feed the system from an external supply, so please add a screw-terminal or DC barrel input with appropriate decoupling and distribution for both logic-level 5 V and the higher-current serv...

...Germany-based, husband-and-wife-led engineering studio with a 5–7 member core team specializing in full-cycle IoT and embedded product help startups, researchers, and companies turn ideas into fully working, production-ready IoT products, from PCB and firmware to cloud, AI, and mobile Core Expertise Covers the Entire IoT Chain-> Embedded Firmware DevelopmentSTM32, ESP32, Arduino, nRF, PIC, Raspberry PiBare-metal & RTOS (FreeRTOS)BLE, Wi-Fi, LoRa, MQTT, CAN, SPI, I²C, UARTSensor integration, power optimization, OTA updates-> PCB Design & Hardware EngineeringSchematic + PCB design (EasyEDA, Altium, KiCad)Single-layer to multilayer boardsBOM optimization & DFM/DFA supportPrototype-ready Gerbers & manufacturing files-> Cloud, Backend & AI Int...

I will give you the required code and documentation for 3x Arduino Mega 2560 which will work as leader/follower. I will buy the necessary hardware at my side to test the things.

...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...

Project Brief: Stealth-Modified Automatic Parking Disc (Certified ...fully automatic. No user interaction should be needed after parking. • No visible alterations (e.g., wires, unusual controls, abnormal movement patterns). • Power should remain efficient — preferably still battery-powered or with a hidden upgrade that doesn’t draw attention. Ideal Freelancer Profile: I’m looking for someone with experience in electronics, microcontroller programming (e.g., Arduino), or embedded systems. Ideally, you’ve worked with consumer electronics, automotive modifications, or smart devices before. Both functionality and stealth are equally important for this project. ⸻ Let me know if you have questions or need specific details (such as device models). Loo...

...running on an Arduino Uno, two DC motors driven by an L298N bridge, and a pair of HC-SR04 ultrasonic sensors mounted up front. I already have the hardware wired and tested; what I still need is clean, well-documented embedded-C code that lets the robot detect an approaching obstacle with the ultrasonics and autonomously steer around it. Functionality • Primary mode must be obstacle avoidance; no line following or remote-control features are required at this stage. • When the sensors report an object within the safe-distance threshold, the robot should smoothly adjust course and continue forward rather than simply stopping. A simple state machine or PID-based turning logic is fine as long as the movement looks deliberate and repeatable. Implementation notes &bull...

...repository Set up the correct build environment as per the project documentation Branding & Asset Changes The following branding changes must be applied: Replace application logo Replace assets Update app name wherever required (if applicable) Ensure the new branding appears correctly in: App window Executable icon About section (if present) All required logo and asset files will be provided. Arduino Connect Button Should turn to Green color when connected and Red color when disconnected. Build Desktop Executables Generate final distributable builds for: Windows .exe (64-bit) Linux AppImage / macOS .app bundle or .dmg Builds must be tested to ensure the app launches correctly. Deliverables The freelancer must provide: Windows executable Linux executable/package macOS exec...