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I’m working on a project with the AVR-IoT Cellular Mini (Sequans Monarch 2 modem), where I modified the Arduino-based firmware myself to periodically transmit GPS latitude and longitude data to my backend (BE) over HTTPS. The objective is to send GPS data (latitude, longitude, and timestamp) to a REST API endpoint at a defined interval and confirm that the data is successfully received and visible on the backend. At the moment, I’m blocked by a TLS issue while attempting to configure the CA certificate for HTTPS. When I try to add the root CA certificate (ISRG Root X1 – Let’s Encrypt) to the device/modem, I get an error that says: “CA certificate input too long” Because of this issue: • The TLS handshake fails. • The HTTPS request ...

We need an electronics engineer to implement a PCB design based on an existing schematic for a renewable energy monitoring project. The system measures electrical parameters from multiple sources including a solar panel, wind turbine, battery, and inverter output. The schematic already exists in PDF format and includes components such as Arduino Nano Every, MCP3903 ADC, ADS1115, WCS1600 current sensors, and HC-12 communication module. The task is mainly to follow the existing schematic, verify the design, and create a manufacturable PCB layout.

...happening, we're good. Deliverables: Source code I can compile and flash Quick notes on how to set it up (SIP creds, WiFi config, wiring for display) Short video showing it actually making a call Don't need (yet): Echo cancellation, noise suppression, OTA updates, contact lists, fancy UI — all future scope. The display just needs to show text status, not look pretty. Framework: ESP-IDF or Arduino, your call. ESP-ADF experience is a plus but not required — whatever gets it done. Looking for someone who's actually done ESP32 audio or embedded VoIP before. Message me with relevant experience....

I’m looking for an experienced embedded systems / hardware engineer to take over an existing ESP32-based NFC audio player project . ⚠️ Important clarification The physical PCBs are n...basic audio playback control Deliverables: • working firmware source code • documentation explaining the code structure Constraints • Budget: 100 € fixed • No hardware prototype required • No PCB ordering or assembly • Communication and clear documentation required Skills Required • ESP32 development (Arduino or ESP-IDF) • NFC integration (RC522 or PN532) • microSD audio playback • Embedded C/C++ • Experience debugging embedded systems Required Skills ESP32 firmware (FreeRTOS or Arduino) NFC (RC522 / PN532) SD card audi...

I have an Arduino-based board that is powered from its own DC rail, yet it has to monitor several other DC lines whose grounds are completely separate. Right now I’m simply feeding each line through a voltage divider, and—unsurprisingly—the readings jump around or drift because the grounds are floating. The symptom is clear: inaccurate voltage readings that make the data unusable. What I need is a clean, reliable way to sense those isolated DC voltages without tying the reference points together. Whether that means introducing isolated amplifiers, optocouplers, tiny transformers, or another proven technique is up to you; I’m open to whichever approach gives stable, repeatable results and keeps the measurement side safe for the microcontroller. Here’s ...

...Complete 6-layer PCB layout - DRC clean, JLCPCB design rules applied - Gerber files, BOM, and CPL (pick-and-place) files ready for order - Deadline: 2 weeks after M2 approval Milestone 4 – Prototype Test & Validation - I order PCBs and ship to you (or you order, I reimburse) - Firmware: basic scan routine that reads all 16 positions and outputs UIDs via UART - Firmware must be compatible with Arduino IDE (STM32duino core) – no CubeIDE/HAL dependency - Documented test results: detection rate per position, scan time, read distance - Minimum acceptance criteria: >95% detection rate at 2 cm distance - Deadline: 2 weeks after boards arrive Budget is negotiable based on your proposal. PCB manufacturing and shipping costs are separate and paid by me. WHAT I PROVID...

...embedded systems developer to write Arduino code to communicate with the MCP3903 energy measurement IC from Microchip using the SPI interface. The goal of the project is to read voltage measurements from three channels of the chip and output the values through the Arduino serial monitor. Hardware: Arduino board (Arduino Uno or compatible) MCP3903 analog front-end IC SPI communication Requirements: The code should: Initialize SPI communication between Arduino and the MCP3903. Configure the MCP3903 registers correctly for basic operation. Read measurement data from the following channels: CH0 CH1 CH2 Convert the raw ADC data into readable voltage values (or at least raw measurement values). Print the measured values continuously to the A...

I want to build a small, self-contained charging station that wakes up only when it “sees” a bottle and a can. The core will be an Arduino (any recent 32-bit board is fine) tied to a solar panel and battery pack. A lightweight AI vision module or camera running something like TensorFlow Lite or OpenCV should continuously—or on a duty-cycled basis—look for bottles. The moment a bottle is detected, the system must move straight into the charging routine without waiting for external confirmation; no alerts, no logging, just automatic activation. What I need from you • Complete Arduino firmware that integrates the vision trigger with the charge-controller logic. • A schematic / wiring diagram showing how the camera, solar panel, charge contr...

I’m working on a project using the AVR-IoT Cellular Mini (Sequans Monarch 2 modem) where I customized the Arduino-based firmware myself to periodically send GPS latitude and longitude data to my backend (BE) over HTTPS. The goal is to push GPS data (lat/long + timestamp) to a REST API endpoint within a specific time interval and verify that the data is successfully received and visible on the backend. However, I’m currently blocked by a TLS issue when trying to configure the CA certificate for HTTPS. When I attempt to add the root CA certificate (ISRG Root X1 – Let’s Encrypt) into the device/modem, I receive an error stating: “CA certificate input too long” Because of this: The TLS handshake fails. The HTTPS request does not complete. The end...

...have an ESP32 dev board on my bench and need it turned into a compact sensor hub. The entire focus is sensor integration—specifically motion & proximity plus light & sound. Some of the devices will be hard-wired to GPIO pins while others should connect wirelessly, so the firmware must handle both connection paths seamlessly. Here’s exactly what I need delivered: • Well-commented source code (Arduino-ESP32 or ESP-IDF) that polls each sensor, filters noise, and publishes readings over Serial and MQTT. • A clear wiring / pin-out diagram for the hard-wired sensors. • Configuration notes that let me pair or re-pair any wireless sensor modules. • A short README covering library installs, flash commands, and expected output. Acceptance...

I’m putting together a very small-scale project on an Arduino Uno and simply need a clean, well-commented sketch that switches an LED on and off. No elaborate libraries or peripherals—just straightforward LED control that compiles in the current Arduino IDE and can be uploaded over the standard USB cable. What I expect from you • An .ino file that drives either the onboard LED (pin 13) or an external LED on any digital pin I can redefine at the top of the sketch. • Clear inline comments explaining each step so a beginner can follow the logic and reuse the code in future experiments. • A short read-me noting the exact IDE version you compiled with and the wiring diagram if you choose an external LED. That’s all—simple, reliable, a...

I want a simple two-channel radio link that can do just two things reliably: 1) vary the speed of my brushless DC motor through its ESC (accepts S-Bus or standard PWM) and 2) toggle a single relay on or off. Hardware • I already have the motor, ESC, and relays. • You may choose Arduino, Raspberry Pi, or any Adafruit board—use whichever keeps the build small, inexpensive, and stable. Radio requirements • The handheld transmitter must let me select the operating band with a physical switch: 2.4 GHz, 900 MHz, or 433 MHz. • If LoRa is the cleanest way to hit those bands, great—just make sure the LoRa hop gives me at least a 1 000 ft (≈300 m) clear-line range. Long-range reliability is more important than data rate or extreme power ...

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...

Please find the attachment , need to implement the same . It’s a simple straightforward project if you have intermediate experience in matlab Looking for complete solution to be built by you and deliver it to me Pincode - 560075 I will bear hardware cost .

pressure transducer # 85CV 030A FCA1396 32613 013 1129 Amplifier:TL972P I need someone who understands Arduino Boards and Python to successfully work on a Pressure Transducer. I have attached my current code and setup with an amplifier do your research I need this thing to work. For your linear actuator balloon system (IABP capstone setup), the pressure transducer’s goal is to measure the pressure generated in the balloon or fluid line during actuator motion. Core Purpose The pressure transducer converts fluid pressure → electrical signal so your system can monitor what the actuator is doing. What this lets you verify The sensor is mainly used to confirm that the system works correctly. Verify balloon inflation Pressure should rise when the actuator compress...

...app. Core features • Soil moisture detection with reliable, calibrated readings • Wi-Fi or BLE link from the probe to the cloud • Email alert generation (no SMS or push needed) • Mobile-only dashboard that shows current moisture %, historical trend, last alert time, and a slider to adjust the alert threshold I’m open to an ESP32, ESP8266, or similarly low-power MCU and prefer code in Arduino/C++ or MicroPython if that speeds things up. Low standby current, deep-sleep cycles, and a compact PCB (or even a neatly wired prototype) are important so the probe can run for weeks on a coin cell or Li-ion pack. Deliverables • Schematic, clean PCB layout, and complete BOM • Firmware with commented source, build instructions, and OTA update ...

This project is for the Limbsaw Arduino program written and successfully completed.

I need a working prototype of a compact pool-cleaning robot designed, built, and shipped to Pune by 20 March. Its two core tasks are debris collection across the...list with supplier links and prices. 4. Quick-start user guide covering charging, remote pairing, cleaning routines, and maintenance. I’ll approve milestones at design sign-off, mid-build demo, and final dispatch. Please factor fabrication time, burn-in testing, and courier transit so the box lands in Pune no later than 20 March. If you have prior underwater robotics or DIY vacuum experience—Arduino, ESP32, watertight enclosures, or low-cost powertrain hacks—share links or videos so I can gauge fit quickly. I’m excited to see how you’ll squeeze solid engineering into a tight budget and de...

I am building a robot named GrowBuddy using ESP32. I need an experienced embedded developer to write clean and optimized firmware for the ESP32. Project Overview: GrowBuddy is a mobile service robot with the following features: 1. Face-following mo...control logic for grabbing and releasing objects. 5. Smooth motor control. 6. Non-blocking code (avoid heavy delays). 7. Well-commented and scalable code structure. ⸻ Deliverables: • Complete working ESP32 code (.ino file) • Clear pin mapping documentation • Basic wiring diagram (optional but preferred) • Short explanation of code structure ⸻ Preferred Skills: • ESP32 programming (Arduino framework) • Motor driver control (L298N) • Embedded C++ • WiFi server/client implementation...

...engine cranking. 3.2 Connectivity & Logic MCU: nRF52840 (Native USB and BLE 5.0). Interface: 5 Digital Inputs for momentary tactile switches. Multimedia Functions (HID Profile): Play / Pause Next Track / Fast Forward Previous Track / Rewind Volume Up Volume Down Visual Feedback: One (1) Status LED output (Current-limited). Programming: Integrated USB-C port for direct firmware updates via Arduino IDE. Must include ESD protection on USB D+/D- lines. 4. Mechanical & DFM Constraints 4.1 Dimensions (Critical) Max Width: 18 mm. Max Length: 40 mm. Max Height: 14 mm (including components and headers). Layout: High-density SMT design (0603 or 0402 components). A 4-layer PCB is preferred to ensure a solid ground plane for RF stability and EMI shielding. 4.2 I/O Pads...

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...

Please find the attachment , need to implement the same . It’s a simple straightforward project if you have intermediate experience in matlab

...pneumatic shears, vision guidance, or any other approach that achieves a reliable, repeatable cut. What matters is that the machine can: • Grip a single rose gently • Align it to the desired length • Execute a clean, straight cut every time Please deliver: • CAD files and schematics for the full mechanism • A bill of materials with readily-sourced parts • Control logic or code snippets (Arduino, PLC, or comparable) showing how motion and cutting are coordinated • Setup and calibration instructions so my team can assemble and test the unit in-house • A short video or simulation that proves the concept works on at least one live rose stem If you have prior work with botanical handling, blade dynamics, or soft-grip end effe...

...Tja1051T/3 board and need a complete working solution. The gauge must present six live readouts—oiltemperature, Exhaust gas temperature, Watertemperature, oilpressure, Boostpressure and lambda/AFR—pulled from the vehicle’s CAN bus and rendered on a small colour display. Key points • Hardware: Waveshare ESP32-S3 2.1/2.8 Round board+ Tja1051T/3 is fixed; • Firmware: Write clean, well-documented code (Arduino / ESP-IDF or similar) that decodes the relevant CAN IDs, applies basic filtering, and updates the UI in real time. • User interface: Simple, legible layout toggle on/off checkbox for the 6 values. • Installation: -done by me Deliverables 1. Source code with inline comments and build instructions. 2. Any display graphics assets. If...

I have a complete set of components—Nema17 stepper motor, TB6600 driver, Arduino-based Mobiflight board, and a licensed Prosim suite—and I am ready to bring them together so the stepper drives the throttle axis smoothly and repeatably inside my home cockpit. What I need from you is a clear, reliable path from wiring to calibrated motion: • Hardware: a pin-by-pin wiring diagram that shows exactly how the Nema17, TB6600 driver, limit switches and power supply connect to the Mobiflight board, plus driver current/­micro-step settings that preserve torque without overheating. • Firmware & Mobiflight: the correct Mobiflight device definition for the stepper, parameter values (speed, acceleration, backlash compensation), and any required custom offsets. ...

I need a robotic arm coded with Arduino and integrated with an AI camera. The primary task is color detection. Requirements: - Prioritize color detection. - Move objects to specific locations based on detected colors. - Wave or perform a gesture when a face is detected. Ideal Skills and Experience: - Proficiency in Arduino programming. - Experience with AI camera integration. - Background in robotics, particularly with robotic arms. - Knowledge in color detection algorithms and implementation. - Ability to implement gesture recognition for face interaction.

...developer to build the MVP for FitFlex, an AI-powered smart gym system. The system uses computer vision and IoT (Raspberry Pi + Arduino) to track workouts, count reps, and analyze posture in real time. Key Responsibilities: - Develop overall system architecture and integration. - Implement computer vision for repetition counting, posture analysis, and exercise identification using machine learning models. - Integrate IoT components with Raspberry Pi and Arduino. Ideal Skills and Experience: - Strong background in system architecture and integration. - Proficiency in computer vision and machine learning. - Experience with IoT devices, particularly Raspberry Pi and Arduino. - Ability to work on real-time data processing and analysis. Please provide examples of simi...

I’m ready to dive deep into Arduino-based smart car robots and need a patient, hands-on instructor to guide me from the basics all the way to an advanced, fully functional build. My main interests are rock-solid motor control and reliable Bluetooth connectivity, so every session should circle back to those two pillars. Here’s what I expect: • A clear, progressive lesson plan that starts with fundamental Arduino programming and quickly moves into practical breadboard wiring, H-bridge or motor-driver setup, speed and direction control, and finally Bluetooth command handling. • Working example sketches, circuit diagrams, and brief troubleshooting notes after each lesson so I can replicate the results on my own hardware. • Live screen-share or ...

...am seeking assistance with prototyping a robotics system using Arduino, specifically with Nema 17 stepper motors. Key requirements: - Expertise in Arduino. - Nema 17 stepper motor knowledge useful, but not a necessity. - The program should rotate the stepper motor a series of rotations, for example, 90°, 180°, 270° and 360° with the use of a momentary switch. The program should also incorporate a "potentiometer" that can rotate the stepper motor similar to above in the same circuit, separated by a toggle switch (switch toggles between potentiometer or momentary switch) - Ability to show me which software is best for writing and editing sketches. Ideal Skills: - Background in stepper motors. - Proficient in programming Arduino - Familiar...

...the platform, press a single button, and watch it sign. What I need from you • Mechanical design for the pen-holding arm and paper positioning system (servo or stepper driven is fine, as long as it is precise and gentle on the paper). • Embedded control code that reads a stored path and executes it smoothly at natural writing speed. I am comfortable with common maker-grade hardware such as Arduino, ESP32 or Raspberry Pi, so feel free to choose whichever fits best. • A straightforward way for me to upload or replace signature paths in the future (e.g., simple USB transfer or SD card). • A short demonstration video or live test confirming the robot can sign at least three A4 sheets with an ordinary HB pencil without tearing or smudging. Acceptance crit...

...network via a simple on-device web interface where I enter the SSID and password, then push the reading to a predefined Google Sheet through an Apps Script HTTP endpoint. The reading has to reach the sheet as a single CSV line so it drops neatly into the next free row. Reliability matters more than fancy graphics—I just want to see the numbers stacking up. Please use clean, well-commented code (Arduino IDE or PlatformIO—your call) and keep memory use modest so OTA updates remain possible later. Deliverables • Complete, compilable firmware with clear build instructions • A wiring diagram showing ESP32 ↔ MAX485 ↔ RS-485 A/B and power connections • Quick setup notes that walk me from flashing to entering Wi-Fi details and watching data la...

Boxing Speed & Reaction Time Trainer (Wokwi Project) I just built a Boxing Speed Test Simulator using Wokwi — a browser-based microcontroller si...reaction time and correct hits dramatically improve performance — hitting first and accurately can change the outcome of a bout. How it works: • Four LEDs light up in a random order • The user must press the matching button as quickly as possible • The system logs and displays reaction time and correctness • Success/failure tones reinforce feedback (via buzzer) Built entirely in Wokwi using Arduino logic — no hardware required ✔ Great simulator for embedded system learning ✔ Easy to extend with displays or more feedback ✔ Perfect for practice or educational demos Check it live:

I’m using the Acebott Smart Car Kit QD001 with the QD007 arm expansion, and I’d like the controls moved from my computer mouse to a dedicated physical remote so my young child can drive and operate the arm without a screen in front of them. I already have the exact re...button to: • Forward, backward, left, right drive functions • Arm up, down, and rotate actions Once you’re in, please handle all code uploads and testing until the car responds smoothly to the remote. When everything works, send me the final, well-commented source code plus a short step-by-step so I can reflash or tweak it later if we add new features. If you’ve worked with Acebott kits, Arduino-style boards, or similar robotics platforms, this should be straightforward&mdash...

...without recompiling. 3. Data Transmission & Visualization: Implement a routine to send stored test data (20 rows of 15 thermocouple values) to a PC and provide a Python script to plot these curves in real-time. Technical Requirements • Expertise: Deep knowledge of ATSAMD21 peripherals and ARM Cortex-M0+ architecture. • Architecture: Proven experience in designing modular, scalable Embedded C++ (No Arduino framework unless strictly necessary). • Communication: Ability to explain technical setup steps to a non-expert and document a clear serial protocol. • Tools: Proficiency in Microchip Studio, Python (for plotting), and serial terminal software like Tera Term. Deliverables • Fully configured local development and debugging environment. • Modula...

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...playback completes or 30 seconds of inactivity Uses existing I2S DAC/amp — no additional audio hardware LED provides feedback during test playback (confirms device is active) Deliverables 1. Complete schematic files (KiCad preferred) 2. PCB layout files 3. JLCPCB manufacturing files (Gerbers, NC Drill, pick-and-place) 4. Bill of Materials with verified JLCPCB part numbers 5. Firmware source code (Arduino or ESP-IDF) — clean, commented, production-ready Deep sleep + RTC wake + I2S audio playback Scheduled playback at three configurable times Test button handling Bench-test mode for validating assembled boards (GPIO cycling, speaker test, battery voltage readout) 6. Power budget calculations — detailed breakdown proving 1+ year battery life target 7. Documen...

...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 2 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 need someone who can program dwin display, What’s left is the code that brings it to life and links it to an Arduino-based controller here in Thailand. The job covers two tightly-coupled parts: 1. Flashing the DWIN display with my existing pages so that every button, slider, and status field behaves exactly as designed. 2. Writing the Arduino firmware that listens to those commands, drives the motors and other actuators, polls the attached sensors, and feeds live values and alerts back to the screen. All three interface tasks are in scope—motor or actuator control, sensor monitoring, and displaying real-time information and adjustable settings—so the sketch will need a clean, well-documented serial protocol that keeps everything perfectly in sync. Yo...

I have an off-road RC platform that I want to turn into a fully autonomous vehicle. The goal is for the car to steer itself, manage throttle and braking, and handle lights/indicators without human input while still allowing me to take over with a transmitter when needed. Here’s what I need from you: • Hardware interface: integrate your preferred control board (Arduino, STM32, Raspberry Pi, or similar) with the existing ESC, steering servo, and LED system. • Software stack: write the embedded code and higher-level logic that handles path-planning, obstacle detection, and failsafe switching back to manual control. • Feature completion: automated steering, speed regulation, and programmable light sequences must all work reliably on rough terrain. Acceptance...

I'm looking for a skilled developer to create MyZmanim, a smart home display device. This device calculates and shows daily religious times based on sunrise and sunset, updating automatically using your location. Key Requirements: - Displays all prayer times - Uses a custom 5-7 inch TFT SPI display with printed casing - Magnets on the back for fridge mounting a...based on sunrise and sunset, updating automatically using your location. Key Requirements: - Displays all prayer times - Uses a custom 5-7 inch TFT SPI display with printed casing - Magnets on the back for fridge mounting and a stand for tabletop placement Ideal Skills: - Experience with custom LCD displays & UI - Proficiency in automated time calculation based on geolocation - Knowledge of Arduino IDE code as w...

...physical prototypes of an RF-based proximity system. I have already developed the full source code and circuit schematics; however, due to a physical disability, I require a partner to handle the soldering, wiring, and physical housing of the components. Technical Requirements The project consists of two separate units: a Transmitter and a Receiver. Microcontrollers: Program and integrate 2x Arduino boards (provided/specified in schematics). Connectivity: Configure RF modules for proximity detection. Power: Integrate rechargeable battery systems (Li-Po or similar) with charging ports for both units. Assembly: Solder all components according to provided schematics. Enclosure: Mount components into two separate, durable housings (3D printed or off-the-shel...

...lets one ESP32 talk to an ESP32-C5 through Firebase. The goal is straightforward: push a small JSON payload from the first board, have it appear on Firebase almost instantly, then pull it down on the second board so it can react (toggle a pin, echo the data, or similar). I will flash both boards myself, so your work ends at well-commented source code and a quick setup guide. You can build in Arduino IDE or ESP-IDF—whichever you feel gives the cleanest Firebase implementation. Wi-Fi credentials, Firebase project keys, and any sensor stubs can be hard-coded placeholders; I’ll replace them during testing. Deliverables • Two compilable sketches (or IDF projects) — one for ESP32, one for ESP32-C5 • Minimal Firebase rules/config needed for the link ...

I need an embedded engineer to help safely connect a PCB to a lead-acid battery pack in series and integrate 4 external sensors (temperature, humidity, water presence, etc.). The system must read data in Arduino IDE and, if possible, send it to an existing telemetry endpoint (HTTP/MQTT). Scope: Safe wiring from battery pack to PCB Best way to connect and mount sensors Connector and grounding recommendations Simple Arduino example to read sensors and output/send data Experience with ESP32, Arduino, sensors, and battery-powered systems required.

Got it! Here’s a polished and engaging introduction for your blog post that will hook readers right away: Build Your Own DIY RC Car with Arduino – A Step-by-Step Guide Have you ever dreamed of building your own remote-controlled car from scratch? In this guide, we’ll walk you through creating a fully functional DIY RC car using affordable, easy-to-find components like the Arduino Uno, joystick module, NRF24L01 wireless transceiver, and L298N motor driver. Whether you’re a hobbyist, a student, or just someone who loves tinkering with electronics, this project is a fun way to learn about wireless communication, motor control, and Arduino programming. By the end, you’ll not only have a working RC car but also a deeper understanding of how ...

...1 tested prototype (tracking required) Constraints Total project budget: 300–350 € Clear milestones only No unapproved expenses Payments will be released strictly per milestone, after validation of the defined deliverables. No additional costs, components, or purchases will be accepted without prior written approval. One PCB iteration maximum Required Skills ESP32 firmware (FreeRTOS or Arduino) NFC (RC522 / PN532) SD card audio playback Debugging on real hardware Clear communication...

I need a clean, well-commented Arduino sketch for the Pololu 3pi that lets the robot visit six preset locations, interact with the magnet at each spot, and return to its starting line in under four minutes. The only sensing method available is a magnetic sensor array, so all point detection and interaction logic must rely on that hardware. Two run modes have to coexist in the same program and be switchable through a simple flag, jumper, or serial command: • Intermediate – the robot must physically touch the magnet before leaving the point. • Difficult – the robot should recognise the magnetic field, stop just short of contact, and then continue. Between locations, I expect a mix of straight dashes and graceful curves; please handle path planning so th...

...height. Material Strategy: Main body in 1.5mm Galvanized Steel; however, the Filling Niche (900-1300mm) must be a separate sub-assembly in Stainless Steel (AISI 304). Service Access: The design MUST include double access (full-size front and rear doors) to allow maintenance of the back-row drums and pump manifold. Electronics Isolation: A sealed "Technical Hub" at the top (1300-1750mm) for CPU, Arduino, and Power Supplies. Deliverables (14-Day Timeline): Parametric Files: Native SolidWorks or Fusion 360 files. Fabrication Pack: 1:1 DXF/DWG flat patterns (adjusted for 1.5mm K-Factor). Complete BOM: Detailed list of all fasteners, hinges, and industrial components. Assembly Guide: Exploded views and technical PDF drawings. Selection Filter (Required to bid): To ...

I am looking for an experienced ESP32 developer to implement an HTTP server with WebSocket communication and a self-hosted dashboard using ESP‑IDF. Requirements: - Development strictly using ESP‑IDF (no Arduino framework) - Implementation of an HTTP server hosted on the ESP32 - Integration of a WebSocket communication channel for real-time data exchange and commands - Implementation of a simple dashboard (HTML, CSS, JS) for testing WebSocket communication (I will provide almost-ready HTML and CSS files) - Implementation of the JavaScript code for handling WebSocket communication - Hosting the dashboard directly on the ESP32 (embedded in the binary) - Efficient handling of WebSocket messages according to the protocol specification (which I will provide) - Clean, modular, and maintai...

...printer, finished cleanly, and paired with the necessary electronics. Key tasks you’ll handle • 3D-print every part from the MakerWorld files in a strong, heat-resistant material. Some parts need to be printer in PETG. • Source and install the electronics including arduino, wire everything neatly. • Run a full test roll, capture a short video showing the winder in action. • Ship the completed unit. Needs to work for Australian plug 240V. Total parts cost is estimated at US$170 ## Estimated Parts Cost **Electronics:** - Arduino Nano: ~$5–8 - DC Motor 12V 200RPM (geared): ~$10–15 - PWM motor controller: ~$5–10 - Stepper motor Nema17 (pancake): ~$10–15 - A4988 stepper driver: ~$2–5 - Meanwell DR 15-12 power supp...