Arduino Jobs

I’m building a new electronic digital-lock and need an enthusiastic fresher who wants real-world experience in the technical electronic domain. You’ll work alongside me on everything from early-stage circuit design to basic firmware tweaks, refining the lock’s functionality, helping validate the hardware on the bench, and documenting each step so the work can be replicated later. You do not need years of background—just a solid grasp of electronics fundamentals, the curiosity to learn fast, and the confidence to ask questions. Familiarity with simple microcontrollers, C/C++ or Arduino-style tooling, and any PCB design package will make the ramp-up smoother, but I’m happy to mentor you through unfamiliar areas. Deliverables I expect as we progress: • U...

I need a clean, ready-to-build schematic for a compact keyboard that uses an Arduino Micro as the controller. The board is for everyday, general use and will be arranged in a 3-row by 3-column matrix, with an additional key to switch between 4 modes. (10 keys in total). Hot-Swap Keyboard for the keys. Add diodes Include a 2 layer LCD Display that can be programmed on the Arduino Pro Mirco. Besides the usual character input, I want a few of those keys assigned to media functions—play, pause, volume up/down—and a couple reserved for custom macros. If you include diode placement and a clear pin map from the key matrix to the Arduino Micro’s GPIO pins, that will make firmware-writing straightforward on my side. PCB must be spaced to fit a 3d Printed enclosure Please del...

I need an engineer who can take a stock CVT Android-TV motherboard and turn it into a polished, brandable product. The job centres on building or modifying the AOSP-based firmware, flashing it on-board through UART, and validating everything on an LED panel. What I must receive from you • Custom boot logo and full start-up branding • Precise remote-control key-map that matches my IR layout • Stable Wi-Fi & Bluetooth drivers baked into the image Beyond those three deliverables, you will also handle panel timing, LVDS settings, basic app pre-loads, and general optimisation so the UI feels snappy. If OTA updating can be kept intact after your changes, that is a plus, but the core of the work is the flashable image itself. I typically work with MTK, Realtek and oth...

I need a complete hardware-to-firmware solution for a low-power, standalone temperature and humidity monitor that relies on 4G/LTE rather than Wi-Fi. The core will be an ESP32 driving a SIM7600G module, paired with a DHT22 sensor. Collected readings must be published over MQTT to my Supabase/PostgreSQL back-end. The device will sleep most of the time, wake on schedule, take a reading, push it securely, then drop back into deep sleep. It also has to recognise a lost cellular link, attempt reconnection gracefully, and log any failures for later review. Power comes from a Li-po pack, topped up through a USB-C port, so the design needs an efficient charging and protection stage. Please deliver: • Complete, readable schematic (PDF + source) • Production-ready PCB layout with G...

Firmware Adaptation for CH591 From CH592

Hi I will share the details with the shortlisted candidates. Thanks

Hi I will share the details with the shortlisted candidates. thanks

I’m looking for a freelance robotics/mechanical engineer to help build a small ambient companion robot prototype called Madison Orb v1. This is an early-stage, hands-on prototype project focused on creating a calm, premium-feeling robotic presence — not a toy robot or research platform. The overall concept, industrial design direction, behavior philosophy, and initial STL reference files are already defined. Updated design references and prototype specifications are available. Key Design Direction (UPDATED) The project has evolved from a basic mobile robot into a more refined ambient companion concept with: egg-shaped enclosure design (not a perfect sphere) glossy black front visor single expressive LED light ring (instead of cartoon eyes) matching ambient LED band around t...

San Francisco based engineer needed I'm seeking an expert to create two remote-controlled mecanum-wheel systems for use in a live theatre show to control two moving set pieces. Wheels, motors and parts purchased independently by us. Requirements: - Forward/Backward/Side movement - Speed control - High precision in movements Ideal Skills and Experience: - Experience with robotics and remote control systems - Proficiency in custom remote control design - Strong understanding of mecanum wheel mechanics and movement dynamics - Ability to deliver smooth, precise control Please share relevant past work and ensure you can meet the precision requirement.

I have a proof-of-concept in mind that will let me switch household appliances on and off from a distance using LoRa and an ESP32. The focus is purely remote control—no fancy scheduling or parameter tweaking for now—so reliability, range and low-latency switching are the priorities. I already work with the Arduino IDE and PlatformIO, but I need someone who has hands-on experience pairing ESP32 boards with the right LoRa transceiver (SX1278, RFM95, or any module you know performs well). You’ll guide the hardware choices, write the firmware, and make sure the receiver node triggers a solid-state relay (or a simple LED during testing) whenever the transmitter sends an ON/OFF command. Deliverables: • Schematic or wiring diagram for both transmitter and receiver nodes ...

I’m developing my final-year Design & Technology major work around water safety and need a robust swimming safety monitoring system created fast. The core objective is real-time safety monitoring that instantly recognises when a swimmer is in distress and notifies supervisors without delay. I’m open to the most effective approach you can deliver quickly—whether that’s a wearable sensor set, a vision-based pool camera solution, smart buoys, or a hybrid of these. What matters is proven, repeatable detection of hazardous situations (e.g., prolonged submersion or lack of movement) and an immediate audible and mobile alert. Deliverables • System architecture diagram showing all hardware and data flow • Complete component list with datasheets or purcha...

MAIN THINGS TO COMPLETE / SUBMIT No. of Apps: 3 1. Data Driven Application – Python Tkinter app using an API. 2. Tomorrow’s Web Proof of Concept – full web application with front-end and back-end. 3. Machine Learning Model – functional ML model/project. No. of Games: 1 1. Indie Game Design – 2D Unity game with Windows build, Unity project folder, assets, scripts, and walkthrough video. No. of Websites: 2 1. Showcase Portfolio Website – online professional portfolio for job application. 2. Creative Incubator Website – campaign website for the group prototype/project. No. of Physical Computing / Arduino Projects: 7 1. Arduino Experiment 1 2. Arduino Experiment 2 3. Arduino Experiment 3 4. Arduino Experiment 4 5. Arduino Experiment 5 6. Arduino Ex...

I need one production-ready showcase device built and shipped within 3–4 weeks. This goes directly in front of investors — it must look finished, not prototype. The device: A wall-mounted solar monitor called VEO. Round display showing live data. 24-LED NeoPixel ring glowing green (healthy) or red (fault). Compact enclosure. Power on → demo starts. No desktop, no setup. Your job: • Mount Pi Zero 2W, round display, and NeoPixel ring into a clean enclosure • Wire NeoPixel ring concentrically around the display • Configure Pi to boot headless directly into existing Python app (already written) • Ensure Wi-Fi auto-connects on boot Enclosure: 3D printed, acrylic, or machined — your choice. No exposed wiring. Display flush with front face. LED ring ...

I need a Python/Arduino developer to create the code for an Adafruit RP2040 CAN board. The board will take in an analog voltage and output to a CAN based device. Key Requirements: - Converts 0-5V analog signals into CAN-based messages. - Convert can messages coming in and rebroadcasting to a different address - Broadcast status and wake messages to device being controlled. Ideal Skills & Experience: - Proficient in Python and/or Arduino and familiar with Adafruit Feather ecosystem - Experience with CAN protocols and message formats

I need an experienced embedded systems and PCB design engineer to design a compact NFC Reader module based on the ESP32 microcontroller and NFC transceiver. The board should read NFC tags and toggle a relay output to control external devices such as door locks, motors, or other automation equipment. Key Functional Requirements: - ESP32 as the main microcontroller (Wi-Fi & Bluetooth capable) - NFC transceiver - Relay output toggled by ESP32 GPIO when a valid NFC tag is detected - Wide input voltage range: 10–24V DC - Multi-rail power supply: - LED indicator header pins for visual feedback Firmware Requirements: - Read UID from NFC tags - Toggle relay on valid tag detection - Sleep mode support for low power consumption Deliverables: - Complete schematic design - PCB layou...

I have a pumping system that needs an intelligent, multi-channel controller capable of switching a 220 V load while staying online almost anywhere. The hardware shortlist is already in place, but I want an experienced engineer to turn that list into a fully working unit that can be triggered three ways: Wi-Fi (802.11n), 4 G LTE, and—when nothing else is available—through a Starlink connection routed from the controller’s Ethernet port. Here is what I need from you: • Electronic design: finish the schematic around my existing parts list, size the power supply for 220 V, choose the right relays/solid-state switches, and ensure the radio modules do not introduce interference. • Firmware: write clean, well-documented code that listens simultaneously for Wi-Fi and...

Hardware Prototyping: GSM-Controlled Motorized Smart Lock (Custom Design) Project Description: I am looking for an experienced Electronics/Hardware Engineer to develop a functional prototype of a custom GSM-based smart lock designed for farmhouse and agricultural security. Unlike standard "plug-and-play" kits, this is a custom-built system designed for high durability and specialized mechanical features. Key Technical Requirements: Microcontroller: Arduino Nano or ESP32 preferred for the initial prototype. GSM Module: Must use SIM800L or a 4G-compatible module (e.g., SIM7600) for remote operation via SMS and Call. Actuation: High-torque 12V DC motor control (Actuator or High-Torque Metal Gear Servo). Custom "Wiggle/Multi-Fire" Logic: The system must be programmed ...

I want a doorbell that greets visitors in my own words rather than a stock chime. The idea is simple: when someone presses the wired push-button out front, a short voice message I have recorded should play through an internal speaker. I would like the device to let me change that message whenever I wish—ideally by holding a record button or by uploading a small audio file—so I can cycle between holiday greetings, personalised welcomes, or even funny reminders. Because the trigger is just a standard, hard-wired bell button, please keep the electronics compact enough to mount near the chime transformer. Low-voltage power from the existing doorbell circuit is available, but I am open to adding a small DC adaptor if that simplifies things or gives cleaner audio. What I need f...

I need a compact hand-held controller that combines a dead-man safety switch with a rotary potentiometer and feeds a clean PWM signal into an Arduino-based drive system for an axial flux motor traction inverter. When the side button is depressed, the rotary pot should dictate motor speed; the instant the button is released the output must drop to the same state as an e-stop, guaranteeing zero drive. The housing has to be fully 3D printable on a typical FDM printer (200 × 200 × 200 mm envelope, PLA or PET-G). Ergonomics matter—I’m picturing something that can be gripped like a bicycle throttle with the thumb naturally resting on the kill switch—but feel free to propose alternatives if they remain compact and printable without supports in awkward internal cav...

I’m building a small interactive sound board driven by an Arduino and the MPR121 capacitive-touch controller. Between five and eight copper-tape pads will act as the touch points; the moment any pad is tapped it should fire a single, corresponding MP3 track through a DFPlayer Mini, then stop—no looping, no timed fades. Here’s the workflow I need solved: • Code that links each of the MPR121’s channels to its own MP3 file and plays the file once per touch, with simple debouncing so accidental retriggers are avoided. • Reliable wiring that ties the Arduino, MPR121, DFPlayer Mini, a small Class-D amplifier and speaker together, plus a spare GPIO line that can mute the speaker and divert audio to a 3.5 mm headphone jack when a plug is detected. • Eve...

Our processing line needs a reliable counting routine, written in CODESYS, that records the exact number of chickens immediately after slaughtering. At the moment that figure is taken manually and is rarely accurate; I want the PLC to take over so the plant can trace throughput in real-time and feed the data to our existing SCADA screen. The job is focused on one task only: IFM based system to count poultry legs and report daily a total amount of processed birds entering the system. * Sensor to be mounted within the main running line of the Auto cut line positioned post hang on (left of the green personal) * 2 counts to equal 1 bird count * IP rating to be 68 or above for hygiene washdown areas * System to be able to be reset every day via a button that operators can reset * Wiring to be ...

Firmware for IoT device – request a quote I'm looking for a contractor to create firmware for an IoT device. The device is already ready (hardware works, full documentation available). Technical details and architecture are described in the appendix (it is part of this query). ________________________________________ What is there to do You need new firmware that: • will be universal (not for one specific case) • will NOT have a rigidly coded logic • Everything is to be set in the device configuration (not in the code), including: o which Modbus registers to read o which CAN frames to analyze o Digital Input Configuration • allows you to change the configuration without uploading new firmware • enables local data processing (rules, aggregations) • i...

Electrical Engineer Needed — Sundial-Inspired Rotating Light Clock What I'm Building A functional clock where a motorised arm rotates around a central post (gnomon) once every 12 hours. A small directional LED is mounted at the tip of the arm, pointing inward toward the gnomon. As the arm rotates, the light beam sweeps across a marked base dial, indicating the time — like a sundial but with light instead of the sun. The aesthetic/mechanical housing is handled separately. I need someone to design and deliver the working electrical and electronic system. --- Scope of Work 1. Timekeeping & Motor Control** - Accurate clock circuit (RTC module preferred, e.g. DS3231) to drive the rotation at the correct speed - Stepper or gear motor selection and driving circuit for sm...

Title: Build a USB Power Monitoring Device (ESP32 + INA219 + OLED) Description: I am looking for an embedded systems developer to build a working prototype of a USB power monitoring device. The device should: - Measure Voltage (V), Current (A), and Power (W) - Display values in real-time on a small OLED screen - Work as a pass-through (input power → device → output to phone/load) Preferred components: - INA219 (or similar current/voltage sensor) - ESP32 / Arduino - 0.96” OLED display (I2C) Deliverables: - 1 fully working prototype (hardware) - Clean and working source code - Circuit diagram / wiring schematic - List of components used Nice to have (optional): - Compact design - Basic enclosure (3D printed or simple casing) Budget: Open to proposals (expected ₹1,0...

I have an ESP32 Basic Core IoT Development Kit V2.7 installed in my truck and need firmware that will warn me whenever the Starlink router stays powered after I switch the ignition off. The sketch should watch a dedicated ignition-sense pin: while the line is high the unit does nothing special, but as soon as it goes low it must keep polling the Wi-Fi connection status in code. If the ESP32 is still associated with any network after a user configurable amount of time, an on-board LED must begin to flash, screen starts flashing and the internal speaker must chirp in tandem until the Wi-Fi link drops or the ignition is restored. I would like a simple LCD screen interface on the kit’s I²C display that shows real-time states (“Ignition ON / OFF”, “Wi-Fi CONNECT...

I aim to develop a solution that will facilitate data communication between an Arduino UNO and a SIM7600E using AT+COMMAND. The primary data in focus will be temperature sensor readings. Key Responsibilities: - Setting up a reliable connection between Arduino UNO and SIM7600E - Implement AT+COMMAND for effective communication - Design a protocol for transmitting temperature sensor data Ideal Skills: - Solid knowledge of Arduino - Proficiency in handling SIM7600E - Experience in implementing AT+COMMAND - Understanding of sensor data transmissions. Please ensure you can efficiently deliver on these requirements, and provide the mentioned sensor data communication before placing your bid.

Je développe actuellement une caméra de vidéo-surveillance sur batterie basée sur le module Lilygo T-Camera S3 (ESP32-S3). Le boîtier est terminé ; il me reste à créer le micrologiciel qui fera le lien entre le matériel et la future application mobile. Objectifs principaux • Activer la détection de mouvement embarquée. • Enregistrer automatiquement une courte séquence vidéo sur détection + envoi cloud si le client a souscrit à cette offre • Diffuser un flux temps réel (RTSP ou autre protocole léger) accessible via Wi-Fi. • Envoyer des push notifications via Wi-Fi à l’application mobile (l’app n’est pas encore dévelo...