Arduino jobs

I have a small desk clock with a beautiful vintage edge-lit display, a bank of mechanical relays, and an Arduino doing the time-keeping. Unfortunately my first build was amateur—cold joints everywhere, wires stuffed into screw terminals, no strain relief.... Then a housemate dropped it. A friend at a makerspace has begun soldering bulbs in the propper layout to match the display but only completed the bulbs for 1 digit. They also started a ribbon connector for the bulbs to the relays/arduino/power section. I’d like you to finish the bulbs, get them connected, then cleanup the Arduino/gps-receiver/power section so it's mounted and ready for a case. I already 3d printed the display mount. • Flawless soldering on every connection, preferably on t...

...a SIM800L red board. The wiring follows the usual guides: GPIO27 to the SIM’s RX, GPIO26 to its TX, grounds tied together, the SIM powered directly from a single 18650 cell. I’ve triple-checked every jumper and even dropped a 1 kΩ resistor on GPIO27 and a 2200 µF capacitor across the SIM’s Vcc–GND rails—still silence. I’m compiling the sketch for the standard “ESP32 Dev Module” target in the Arduino IDE and the board is on a direct USB cable to my laptop. Serial monitor shows the commands leaving but not a single character coming back. If you know this pairing well, I’m looking for hands-on guidance that quickly pinpoints what I have overlooked—whether that’s level-shifting, power conditioning, firmwa...

I’m working with a Diode Laser Board and I need a custom receiver that can plug into that setup, track the machine’s positioning in real time, and instantly flag any faults it detects. The idea is to have continuo...and BOM) for the receiver • Firmware or embedded code that handles positioning feeds, real-time monitoring, and fault flagging • A brief setup guide so I can reproduce your test results on my own bench If you’ve worked with diode-based laser controls, stepper/galvo positioning feedback, or similar high-speed data capture projects, you’ll be a great fit. I’m open to the specific toolchain—Arduino, STM32, ESP32, or something comparable—so long as the end result is stable and easy to integrate. Let me know your pref...

...under the Arduino framework. The screen only has to present a clean, simple menu driven entirely by navigation buttons. Each button will call one of four separate Arduino voids that I will drop in later; those voids handle the I²C EEPROM routines. Core requirements • Use LVGL (latest stable release) and keep the code fully contained in a single .ino with supporting .c/.h files as needed. • Design a start-up screen with four clearly labeled buttons. No dropdowns or toggles are required—just straightforward navigation buttons. • Wire the button callbacks to placeholder functions so I can paste in my own logic for: – Reading data , Display – Writing data , Display confirmation – (two additional loops I will supply) ...

I'm looking for a skilled developer to create a robot arm controlled by hand gestures. The arm's movement will be facilitated using Arduino, gyro sensors, and flex sensors. Key Requirements: - Wired control mechanism - Moderate precision and responsiveness - Primary build material: cardboard The system should involve: - Gyro sensors to detect hand rotation for base and shoulder movement. - Flex sensors to detect finger bending for elbow and gripper movements. - Arduino to process signals and control 4 servos. Ideal Skills and Experience: - Proficiency in Arduino programming - Experience with gyro and flex sensors - Background in robotics and servo control - Strong problem-solving skills - Ability to work with cardboard and design functional prototypes Lo...

I’m building an industrial-grade robotic setup and need a sharp embedded-systems mind to move the control electronics from concept to reliable hardware-in-the-loop operation. The work centres on firmware that drives motors, interprets sensor data and communicates over CAN bus or OBD-II–style diagnostics. Most of the prototyping will happen on Arduino or ESP32 boards before we freeze the design onto a custom PCB, so familiarity with Altium Designer or KiCad for schematic capture and layout is essential. Here’s how I see the collaboration flowing: • Translate high-level motion requirements into C/C++ firmware with clean, well-commented code. • Select, integrate and tune motor drivers, encoders and safety interlocks so the robot meets industrial-speed r...

...what I need you to handle: • Recommend and install a production-grade MQTT broker on the VPS, configure secure remote access (SSL/TLS and user auth) and verify message flow with Home Assistant. • Create the necessary automations/intents inside Home Assistant so each of the three assistants recognises the devices and exposes the ON/OFF plus dimming capabilities. • Supply clean, well-commented Arduino (ESP32) code that subscribes to the chosen topics and drives the relay boards accordingly. I should be able to flash the sketch, power up the module, and watch the relays respond instantly. • Run live tests with at least one virtual and one physical device to confirm that commands from every assistant reliably operate the switches and dimmers. • Provi...

...temperature sensor into an ESP32-based design and need a clean, ready-to-flash solution that covers three essentials: accurate temperature readings, an immediate on-screen display, and reliable data logging. The job breaks down into two parts. First, document the wiring so I can reproduce it quickly—pin map, I²C pull-ups, and power considerations for the 3 V rail. Second, supply well-commented Arduino-compatible code (ESP-IDF is fine if you prefer) that: • polls the MLX90614 at a reasonable interval • streams both object and ambient temperatures to the Serial Monitor (or an OLED/Nextion screen if you think that’s cleaner) • stores each reading with a time stamp to SPIFFS or a micro-SD card—your call, as long as it’s easy for me ...

...lets an ESP8266 on the Arduino platform both send and receive infrared commands for multiple air-conditioner remotes. Serial command-line interaction over USB or Telnet is all that’s required; no web or mobile interface is necessary. Core tasks • Build or adapt an Arduino-compatible sketch that scans incoming IR frames, decodes them, and logs the raw timing as well as the decoded protocol and data. • Implement a complementary routine that allows me to replay captured frames or craft new ones from the command line, then transmit them through an IR LED with correct carrier frequency and timing precision. • Structure the code so adding or tweaking protocols is straightforward—I will be experimenting with a variety of AC brands. Environme...

...needed), ESD protection, boot-cap circuitry and the standard reset network. • Break-out to one XH-JST-3 plug clearly silkscreened with the GND, +5 V and LED symbols. • Primary power supplied by USB-C 5 V rail. • Firmware that gives basic functionality: detect USB power, expose the MCU as a simple USB HID to flip the LED on or off, and keep the bootloader intact for future updates. Plain C or Arduino is fine as long as it compiles under the usual open-source toolchain. • Clear, step-by-step flashing instructions using the USB-C port. • Board outline kept minimal; aim for something that could fit inside a key-fob enclosure. Deliverables 1. EasyEDA project files: schematic, PCB, libraries. 2. Gerber, drill, pick-and-place and BOM exports rea...

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...(no mobile app requirement) served directly from the ESP32 • Features enabled: Scheduling, Dimming control, Remote access over the internet/LAN • Clean, responsive HTML + CSS + JavaScript (vanilla or lightweight framework) • MQTT support or lightweight REST endpoints are welcome if it simplifies remote control, but not mandatory Deliverables 1. Well-commented ESP32 source code ready for Arduino IDE or PlatformIO 2. Front-end files (HTML, CSS, JS) compressed for onboard SPIFFS/LittleFS upload 3. Circuit diagram showing the GPIO pinout for the relay/triac and dimming hardware 4. A README that walks me through flashing, initial Wi-Fi setup via captive portal, and how to expose the interface securely (HTTPS or reverse-proxy instructions are fine) Accept...

I have an ESP32-D dev board and three unused PAA5100JE optical-flow sensors. I only need to bring one online first, confirm it streams clean motion data, then replicate the solution for the other two. What I already have • A sketch that compiles but never sees the sensor • All parts on hand, breadboarded and powered • Standard Arduino IDE installed on my end for quick testing What I need from you within the next couple of hours 1. Corrected or freshly written code that initializes the PAA5100JE, verifies it over SPI, and outputs X/Y delta values on the serial monitor at 115 200 bps. 2. A clear wiring diagram (hand-drawn is fine if neat, Fritzing/KiCad even better) that shows every pin between the ESP32-D and the sensor, including power, ground, CS, MI...

I want to build a small-scale hybrid renewable power system—solar panels, wind turbines and tidal generators all working together—inside SimulIDE, driven solely by an Arduino sketch. The goal is purely educational: I need to show that combining these three sources is feasible and to let students see exactly how each part talks to the others. Because of that, the spotlight is on component interactions rather than chasing perfect efficiency or bullet-proof stability. Your task is to create the full SimulIDE project and the matching Arduino code so that: • the three virtual sources feed a common DC bus, • the Arduino reads representative voltage/current sensors for each source, decides which source should be prioritised, and controls simple switc...

...with an ESP32. The goal is to have the ESP32 handle Wi-Fi connectivity, pull motion data from the PAA5100JE, and give me software control of several GPIOs so I can drive LEDs and switch power to an additional sensor on command. Here’s what I need from you: • An advised pin map and any level-shifting guidance for a clean, noise-free hardware hookup. • Well-structured firmware (PlatformIO or Arduino-IDE friendly) that: – Initializes the PAA5100JE and streams its measurements at a steady rate. – Publishes those readings over Wi-Fi—MQTT, HTTP, or WebSocket is fine, as long as it’s fast to implement and stable. – Exposes simple commands or a REST endpoint to toggle GPIOs for the LEDs and sensor power rail. • Clear doc...

...board should accept a compact solar cell and scavenge ambient 2.4 GHz energy (WiFi harvesting) to keep the system alive for months without manual charging. Core expectations • Electronics: schematic, component selection and PCB layout optimized for sub-100 µA standby, including the WiFi/BLE SoC, power-path management, solar MPPT, RF-to-DC harvester and battery protection. • Firmware: ESP-IDF/Arduino or similar code that boots, joins WiFi or BLE, pulls a JSON payload, drives the E-Ink controller, then returns to deep sleep. OTA update support is desirable. • Prototype: one fully assembled board plus BOM and gerbers so I can order more units. Acceptance criteria 1. Board refreshes a 2.9-inch E-Ink display from a cloud endpoint. 2. Average current in...

...accept both induction coils and standard gas burners so I can switch energy sources as required. From dough portioning and pressing to cooking, puffing, and neatly stacking, every step should run hands-free once ingredients are loaded. To keep the budget realistic, I’m open to clever use of off-the-shelf components, 3-D-printed parts, recycled food-grade stainless, or low-cost electronics such as Arduino or Raspberry Pi for control and sensor feedback. Just make sure anything in contact with the dough is food safe, easy to clean, and remains rigid over time. Deliverables I expect: • CAD drawings with assembly instructions • A complete bill of materials showing per-item cost and total staying below ₹10,000 • Control schematics and firmware source code ...

...service—written, tested and ready to run as soon as possible. Here is what I expect to receive: • Raspberry Pi service (Python, Node-JS or similar) that – discovers or registers ESP32 units, – maintains simultaneous connections, queues messages and forwards them over the WebSocket tunnel, – handles reconnects, heart-beats and basic security (token or key-based). • ESP32 firmware (Arduino IDE or ESP-IDF) able to – connect via Wi-Fi to the router, – subscribe to commands from the Pi and publish its own status/data, – keep memory and bandwidth light enough to scale to ~100 devices. • Simple config file or script so I can point the Pi at a different web-server URL or change Wi-Fi credentials with...

...hardware/electronics building experience. We're looking for a freelancer who can act as a hands-on mentor for the hardware and coding side, not just a builder — someone who will walk us through each step and explain it, since we're complete beginners in this specific area. Phase 1 scope (this posting): Guide us through wiring a basic glove prototype: flex sensors + IMU connected to a microcontroller (Arduino/ESP32 or your recommendation) Get the hardware reading clean, reliable sensor data Basic coding to turn that raw data into recognised output for a small set of signs (a handful of Arabic Sign Language letters/words as a starting vocabulary) Teach us why each step works as we go What we're looking for: Electrical/embedded systems engineer experienced w...

...buttery smooth, and the screen should raise clear visual and audible alarms whenever a user-defined threshold is crossed. Because this will live on a busy helm, touch interactions have to be glove-friendly, fonts readable at a glance, and refresh rates stable even when multiple PGNs flow in. You may pull any open-source libraries you like, but the final package has to compile in PlatformIO or Arduino IDE and be mine to modify. It would be beneficial for the coder to have or have access to NMEA2000 simulation or devices to test their code. Deliverables: • Documented source code for the ESP32, ready to flash • GUI assets + the “easy edit” method you implement (templates, config file, or mini editor) • Short build guide that covers wiring, library insta...

...Raspberry Pi, or any low-power alternative, provided the final build can connect over Wi-Fi or LTE and push data securely—ideally through Cloud IoT Core or Pub/Sub—into a time-series bucket I can later analyse with BigQuery or Data Studio. What matters most is that the entire path from sensor to cloud is proven and robust. You are free to suggest the specific humidity sensor, the firmware language (Arduino, MicroPython, C, etc.), and the best authentication method for GCP, as long as you keep power consumption modest and the solution easy to reproduce. Please highlight your relevant experience creating similar data-logging or IoT pipelines; that is the single factor I will weigh when selecting a freelancer. Deliverables • Bill of materials with part numbers ...

I need assistance reviewing a Gerber file to ensure it is set up correctly. If confirmed, the freelancer will upload the necessary code or firmware via Arduino and solder the pre-produced chip into a PC mouse.

I already have a two-screen interface finished in Squareline for my ESP32-CYD based nervoscope. All component IDs and events are set; what I am missing is the Arduino IDE firmware that brings it to life. Main screen • Shows battery level (%) • Rotates a gauge needle toward whichever of the two RTD probes reports the higher temperature Settings screen • Slider-controlled probe/needle sensitivity • Dark / light theme toggle • Information panel toggle • Screen-brightness control • Temperature unit toggle with Celsius as the default • Sleep-timeout selection Your task 1. Import the finished Squareline project, wire it to LVGL (or the display library you prefer) and produce a clean, well-commented .ino sketch. 2. Read both RTD...

Hello, I have the equivalent to an Arduino Mega 2560 and I am not a programmer. I have 128 x 64 Dot Matrix LCD made by Duinotech. I have 2 thermocouples attached to MAX6675. I also have 4 relays on a PCB to turn on with 5VDC and a separate 12VDC power supply to power my Mega 2560 from Keyestudio. I have a wood fired boiler with a 1000 litre storage tank, so I need to control the air flow to the fire to maintain the water temperature in it's jacket. One thermocouple is a K type to measure the jacket temperature of the water. I have a 240VAC geared motor that rotates to open and close the air shutter to the fire. The pin on the disc of the motor does the opening and closing with 3 micro switches to stop the motor in 3 given positions, 1st for fully open, 2nd for half open, 3r...

The goal is to turn an Arduino into reliable timing equipment for track-day cars. I already know the core requirement: precise lap timing triggered by track-side sensors, with each lap time shown live on an attached LCD screen so drivers can see their results as they pass the pit wall. What I need coded is: • Accurate capture of a start/finish trigger (IR beam, magnetic reed, or similar—happy to follow your recommendation) • Millisecond-level lap calculation that stores the current lap, previous lap, and best lap in memory • Real-time display of those three values on a 16×2 (or comparable) LCD; the screen should auto-update as each new lap registers • Simple push-button reset to clear the session without rebooting the board Deliverables: 1. Clean, w...

...small IoT device around an ESP32 and need concise, well-structured firmware that brings reliable WiFi connectivity online. The goal is straightforward: power up, join a predefined network (with fallback smart-config or captive portal for first-time setup), then expose a simple REST or MQTT interface so the rest of my stack can push and pull data. The code may be written in either the ESP-IDF or Arduino framework—whichever you’re most productive with—as long as it’s cleanly commented and easy for me to compile and flash from macOS. I will provide the SSID, credentials, and endpoint details once we start. Deliverables • Source code and project files • Brief README covering build steps, pin assignments (if any), and how to change WiFi settings...

...capability. The android device needs to run a particular app that is an official android app. The app is used to validate cards against a government database and it’s the only approved method to validate the card. At the same time a single scan must also send your ID to our Hikvision FaceTime terminal two validate your ID plus face scan. So a single scan must do 2 things. We are thinking to use an Arduino device paired with an NXP PN7161 chip or something similar so that we can scan the card and send one packet to the android app which is on a particular device and the other packet which contains the UID of the card we send to the Hikvision device for face plus card matching to the profile. We already have face plus card matching to the profile however we can’t get th...

...can balance range, power consumption, and tag cost. I expect us to discuss the trade-offs early and lock the decision in before PCB layout begins. Here is how I see the work flowing: • Electronic design—from antenna matching through to the microcontroller or SoC that will parse tag IDs and forward them over a simple UART, USB, or Ethernet interface. • Firmware—clean, documented C/C++ code (Arduino, ESP-IDF, or a bare-metal toolchain is fine) that wakes the reader, captures the tag UID, applies basic error checking, and pushes the data upstream. • Weather-resistant enclosure—3D model plus STL/STEP files suitable for injection moulding or rugged 3-D printing. • Prototype build and functional test—photos, short video, and log files...

...goal is to turn an Arduino into reliable timing equipment for track-day cars. I already know the core requirement: precise lap timing triggered by track-side sensors, with each lap time shown live on an attached LCD screen so drivers can see their results as they pass the pit wall. What I need coded is: • Accurate capture of a start/finish trigger (IR beam, magnetic reed, or similar—happy to follow your recommendation) • Millisecond-level lap calculation that stores the current lap, previous lap, and best lap in memory • Real-time display of those three values on a 16×2 (or comparable) LCD; the screen should auto-update as each new lap registers • Simple push-button reset to clear the session without rebooting the board Deliverables: 1....

I’m building a smart blind stick powered by Arduino that combines GSM and GPS. The core goals are straightforward: give real-time location tracking through GPS navigation and trigger an emergency alert whenever the user presses a panic button or the stick detects an unsafe situation. The alert must be sent over GSM as an SMS that includes live coordinates so a caregiver can locate the user immediately. Here is what I need from you: • Complete, well-commented Arduino code that integrates a GPS module for continuous position updates and a GSM module for outbound SMS alerts. • Circuit schematic (Fritzing or similar) showing all connections—microcontroller, GPS, GSM, power regulation, and tactile buttons/buzzers. • A concise bill of materials wit...

...aggressive cleaning agents. • Offer a straightforward refill system for staff, with clear level indicators on each reservoir. I’ll need detailed CAD drawings, component specifications (sensors, valves, augers/pumps, control board), and an assembly guide so manufacturing can move ahead without guesswork. Firmware for the sensor logic should be included, ideally in an easily updatable format such as Arduino or Raspberry Pi. Acceptance criteria: the prototype must dispense within ±2 g or ±2 ml of the user’s setting, complete a cycle in under five seconds, and pass a 500-cycle durability test without leaks or jams. If this sounds like your specialty, let’s talk timeline and hand-off milestones for design, prototype, and final documentation. ...

...procedure Completed hardware validation report Required experience Applicants must have real experience with: Automotive ECU or vehicle controller design STM32H7 hardware CAN FD Automotive power protection Low-power CAN wake-up systems ESP32 WROOM RF design Protected automotive inputs and outputs QSPI memory Mixed-signal PCB layout STM32CubeIDE firmware ESP32 firmware Altium Designer Generic Arduino, hobby PCB or simple ESP32-board experience is not sufficient. Project process The project will be completed in reviewable milestones: Architecture and component selection Complete schematic review Mechanical placement review PCB routing and manufacturing review Prototype bring-up Validation firmware and final handover A reviewable progress update is required at least once per ...

...aggressive cleaning agents. • Offer a straightforward refill system for staff, with clear level indicators on each reservoir. I’ll need detailed CAD drawings, component specifications (sensors, valves, augers/pumps, control board), and an assembly guide so manufacturing can move ahead without guesswork. Firmware for the sensor logic should be included, ideally in an easily updatable format such as Arduino or Raspberry Pi. Acceptance criteria: the prototype must dispense within ±2 g or ±2 ml of the user’s setting, complete a cycle in under five seconds, and pass a 500-cycle durability test without leaks or jams. If this sounds like your specialty, let’s talk timeline and hand-off milestones for design, prototype, and final documentation. ...

I am looking for a freelancer with experience in electronics design and prototyping to build a programmable ultrasonic cat repellent device. The device should meet the following specifications: Supply: 220V ...Time Cost Target: Low‑cost build using easily available components in India Deliverables: Circuit schematic and PCB layout Component list with vendor sources (India) Assembled prototype in enclosure Documentation for operation Budget: ₹4,000 – ₹5,500 (negotiable based on scope and quality) Timeline: 2–3 weeks for prototype delivery Location: India Skills Required: Electronics circuit design (Arduino, DDS, MOSFET drivers) PCB layout and assembly Experience with ultrasonic transducers Ability to source components locally (, Sunrom, element14, Mouser India, Amazon I...

I'm looking for an experienced Arduino developer to build and program an animatronic project. Key requirements include: - Building and programming animatronic functions, primarily movement (e.g., limbs, head) and potentially sound and light effects. - Using Arduino to control servos, motors, and other necessary components. - Providing a user-friendly interface for operation. Ideal skills and experience: - Proficiency in Arduino programming and electronics. - Experience with animatronics or robotics. - Knowledge of servo motors and motion control. - Ability to create safe, reliable, and engaging animatronic features. Please include examples of similar work in your bids.

...experienced individual freelancer (not an agency) with strong expertise in PCB design, firmware development, PCB assembly, and hardware testing for long-term collaboration on multiple exciting electronics and IoT projects. Required Skills: • PCB design (Altium Designer, KiCad, Eagle, or similar) • Schematic design and PCB layout • Firmware development for microcontrollers (STM32, ESP32, AVR, PIC, ARM, Arduino, etc.) • Component selection and BOM preparation • PCB assembly and soldering (SMT/THT) • Hardware bring-up, debugging, and testing • Experience using oscilloscopes, logic analyzers, multimeters, and other test equipment • Prototype validation and troubleshooting • Knowledge of communication protocols such as UART, SPI, I2C, CAN,...

...entertainment robot and need an engineer-maker who can take it from concept to functioning prototype. The goal is a small, crowd-pleasing bot that moves with personality, reacts to simple audience cues, and runs safely for several hours at events. Scope • Mechanical design: compact chassis, expressive head/arm movement, easy-access battery housing. • Electronics: controller board selection (Arduino, Raspberry Pi, or your preferred MCU), motor drivers, Li-ion power system, safety cut-offs. • Firmware & control software: motion routines, basic sensor-based interaction (ultrasonic or camera vision for proximity), and a USB/Bluetooth interface for future updates. • Prototype assembly: sourcing parts, 3-D printing or light CNC where needed, complete be...

I already have a batch of 2.1-inch round 360 × 360 GC9B72 TFT panels from and now need the electronics and software ecosystem that turns them into a r...and clock modes. Acceptance criteria • Any number of tiles up to at least 36 auto-map correctly after power-on. • Latency low enough that the clock’s seconds hand or colour transitions remain visually smooth. • Pattern editor responds in real time and matches what appears on the physical grid. • All files build and run using open-source toolchains (KiCad preferred for PCB, PlatformIO/Arduino-CLI or similar for firmware). With this complete system I can ship Gerbers to my PCB house, assemble the modules, open a browser and start painting with light on a wall of round displays—no extra ...

I'm looking for an experienced developer - LOCATED IN BENGALURU - to code for a semi-automatic mechanical arm designed for industrial tasks. The arm will need to perform specific movements as per triggers. Key requirements include: - Developing control algorithms to manage semi-automation - Ensuring reliability for industrial applications Ideal skills and experience: Proficiency in Arduino Code for physical movements Please share relevant experience with similar projects.

...The goal is for the module to establish a stable GPRS data session, open a socket or HTTP connection, and exchange test payloads with my server without dropping the link. You should already be comfortable with the M26 AT command set—PDP context activation, TCP/UDP sockets, HTTP GET/POST, SMS-related commands, and the usual registration hurdles. If you prefer to drive the modem from C, Python, Arduino, or an STM32 environment, that works for me; just let me know which toolchain you’ll use so I can replicate it later. Hardware sits on my bench, so I can supply serial logs, run test firmware, or schedule a live session while you steer the configuration from your side. I’m flexible on timing; I care more about a clean, well-documented solution than about hitting a...

...around an Arduino Mega Mini (Mega2560 Pro Mini), which needs to plug directly into the board via sockets/pin headers. 1-2 layer PCB, through-hole components only (I'll hand-solder it myself). All external connections (sensors, actuators, power) come out to screw terminals on the board edge. The W5500 Ethernet module and BTS7960 motor driver stay as off-the-shelf modules but get soldered directly onto the PCB. Communication with the rest of my system is Modbus TCP over Ethernet (via the W5500), not RS485. On top of the existing sensor/actuator I/O, the board needs: 7 extra analog inputs (5× 0-5V, 2× 0-10V, each with a small divider), 4 free digital pins, two inline automotive blade fuses (one on the main supply, one on the BTS7960), and two onboard step-down regu...

I'm seeking an experienced PCB designer to create a multi-layer PCB for a consumer electronics radio device. The PCB will need to interface with microcontrollers and sensors. Key Requirements: - Expertise in multi-layer PCB design - Experience with consumer electronics, especially rad...integrate microcontrollers and sensors Ideal Skills and Experience: - Proficiency in PCB design software (e.g., Altium, Eagle) - Strong background in electronics and circuit design - Previous experience with radio frequency (RF) applications is a plus - Attention to detail and commitment to quality - Experience in designing of boards with components which can communicate via Wifi - Programming in Arduino - Familiar with ESP32 dev board programming Please share your portfolio and relevant proj...

...LEGO-Compatible Models with Electronics Integration We are looking for an experienced **3D CAD designer** to design innovative **LEGO-compatible models** that can integrate electronic or electrical components. ## Project Requirements * Create high-quality 3D models compatible with LEGO dimensions and building standards. * Design parts that can accommodate electronic or electrical components such as: * Arduino * ESP32 * Raspberry Pi Pico * DC motors * Servo motors * Sensors * LEDs * Batteries and battery holders * Switches and connectors * Ensure all parts are optimized for **3D printing** (FDM printing preferred). * Produce clean, parametric CAD models (Fusion 360, SolidWorks, or Onshape preferred). * Design parts that are strong, easy to assemble, and reusa...

...without opening panels or plugging in a laptop. • Safety-conscious wiring, reliable battery power for several hours of convention floor time, and quick-swap charging access. • Final delivery fully tested, with a short video walkthrough and clear maintenance instructions so I can handle minor fixes on site. Helpful experience includes animatronics, servo/motor control, microcontroller boards (Arduino, Raspberry Pi, or similar), 3D printing or lightweight CNC work, realistic fur application, and compact audio solutions. Timeline is tight: I’ll need the finished cat shipped to me in time for a rehearsal two weeks before the event. If this challenge excites you, let’s discuss your concept sketches, parts strategy and milestones so we can bring this larger-...

A dedicated PCB will drive a self-service car-wash “vendo” unit built around an Arduino Nano. The board must accept the pulse output from a standard electronic coin slot, translate each valid coin into the required runtime, and use that signal to energise five independent relays that handle pumps, valves, or lights. All relays share a common 12 V source, yet the Nano and logic lines stay safely at 5 V, so on-board regulation (12 V → 5 V buck or linear, as you judge appropriate) is part of the layout. The relays themselves need fly-back protection, status LEDs, screw-terminal or JST headers for easy field wiring, and clear silkscreen labelling. A USB-B or tag-connect footprint for in-circuit programming is also required. Deliverables • Complete schematic...

I already have a partially-working prototype for an industrial counter + timer built around an Arduino. It needs to count production units while tracking elapsed time in parallel, show both values on an LCD screen, and push the data over Wi-Fi to my factory LAN. Where I’m at • Core hardware is assembled and a rough sketch is running, but the logic occasionally drifts and the Wi-Fi payloads are not stable. • The prototype can be shipped to you immediately, fully labelled and with a wiring diagram of the current build. What I need from you 1. Clean, well-commented Arduino code that reliably performs the simultaneous counting and timing functions. 2. Solid LCD interface: clear, easy-to-read formatting of count, timer, and simple status icons. 3. Robus...

...that lets me roll a ball across any flat surface and have it actively steer itself so the pen mounted inside draws in the exact direction I choose. An optical-flow sensor will read surface motion, my code will translate that into heading commands, and two small motors inside the ball will supply the corrective spin. The overall sketch is already under way, but I need a specialist who knows Arduino-style hardware and, more importantly, how to marry miniature motors with an ESP32-C module for precise directional control of the ball. Your main focus will be advising on the right motor format, driver circuitry, power budgeting, and the physical/electrical integration so the firmware can call simple functions like setHeading() or setVelocity(). I’m comfortable writing and ite...

I need a complete Arduino robot designed in SolidWorks. I've made the robot in real life and i have as many pictures as you need. Please include your SolidWorks drawings in your application.

I'm seeking an experienced engineer to develop an Arduino CAN Bus module specifically for controlling power steering systems in automotive applications. Key Requirements: - The module will be used to control power steering as part of vehicle control systems. - It should integrate seamlessly with existing automotive CAN networks. Ideal Skills and Experience: - Proficiency in Arduino programming and CAN Bus communication. - Experience with automotive systems, particularly in control systems and power steering. - Strong background in embedded systems and real-time monitoring. Please provide relevant experience in your bids.

...that will let me test different grip profiles through a simple interface. Scope • Translate my sketches and performance targets into detailed CAD ready for rapid manufacture (CNC, SLA or FDM are all fine). • Select off-the-shelf valves, fittings and sensors, then size the cylinder and air supply so the gripper reaches its force and stroke goals. • Develop quick-change firmware or a ROS/Arduino node that lets me adjust pressure, speed and dwell time from a laptop while logging position/force data. • Assemble and bench-test the unit, capturing video and basic data traces that prove smooth, backlash-free clamping across the full range. Acceptance criteria – Grips 0-50 mm objects with <0.5 mm repeatability. – Delivers up to 150 N closi...