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I 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 criteria On power-up the ESP32 must auto-detect every listed sensor—whether it’s attached by wire or discovered over BLE/Wi-Fi—then begin streaming motion, proximity, light, and sound data at an adjustable interval. I can verify the stream in an MQTT client and see clean values in the serial monitor without compilation warnings or watchdog resets. If additional breakout boards or modules are advisable, call them out before you code so there are no surprises. Once the data from all four sensor types is flowing reliably, the job is complete.
ID do Projeto: 40277782
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Ativo há 2 dias
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18 freelancers estão ofertando em média ₹11.139 INR for esse trabalho

I am a skilled and reliable Embedded Systems Engineer with over 6 years of hands-on experience in Arduino, ESP32/ESP8266, and microcontroller-based development. I specialize in designing efficient, stable, and scalable embedded solutions, turning ideas into fully functional hardware-software systems. I have a strong background in electronics, sensors, communication protocols (UART, I2C, SPI, MQTT, WiFi, BLE), and real-time embedded systems. My development approach focuses on clean, well-structured, and well-documented firmware, ensuring long-term reliability and easy maintenance. I also provide thorough testing, debugging, and performance optimization, including power efficiency improvements where required. I am a detail-oriented engineer with strong problem-solving skills and extensive experience in hardware debugging and firmware optimization. Beyond technical expertise, I value clear communication, meeting deadlines, and maintaining high client satisfaction. I work closely with clients to fully understand project requirements and deliver high-quality results. Pricing is flexible and can be discussed based on project scope and complexity. I am open to both short-term and long-term projects. Let’s work together to build a professional, reliable, and efficient embedded system for your needs.
₹7.000 INR em 7 dias
7,5
7,5

I have capability to write code for esp32 to read the sensors and send the reading over wifi/mqtt. Can you send me the sensors you plan to use ? as I understand you need sensor for motion, proximity , light and sound. we need more definition of those sensors such as proximity of metal or person? light means sun light or other lights, like wise for sound also. then I can define you the sensors and the integration points. Please elaborate on the sensors being detected over bLE or wireless.
₹7.000 INR em 7 dias
5,3
5,3

As an adept developer with a strong background in both Mobile and Web technologies as well as extensive knowledge around Embedded Systems, Microcontrollers, and IoT Development, I am confident that I can deliver exactly what your project needs. My expertise extends to platforms such as Arduino which is perfectly aligned with your ESP32 Sensor Integration requirement. My proficiencies also stretch to BLE/Wi-Fi sensor connections which are crucial for your project. I can assure you of a well-structured, heavily-commented source code that will efficiently poll and filter the noise from each individual sensor before publishing them over Serial and MQTT. I will also provide you with a detailed diagram for the hard-wired sensors' wiring and clear configuration notes for wireless modules to guarantee seamless functionality across the board. Having adhered strictly to schedule and maintaining clean records on previous projects, I'll be ready to deliver this project with adherence to the acceptance criteria. In conclusion, by selecting me for this task, you're not only assured of a fault-free device but also an partner who understands the importance of clarity, timeliness and high-quality output throughout the development process
₹3.500 INR em 7 dias
2,9
2,9

Building an efficient and reliable sensor hub is right up my alley. As an Embedded Systems Engineer with vast experience in both hardware and software, I am more than able to convert your ESP32 dev board into a compact sensor hub. My deep knowledge in C, Arduino, and the ESP32 guarantees you top-notch source code with clear commenting that filters noise from each sensor and efficiently publishes their readings over Serial and MQTT. Furthermore, I will provide you with a well-detailed wiring/pin-out diagram for the hard-wired sensors as well as comprehensive configuration notes for the wireless sensors. My proficiency extends beyond just firmware development — I am also skilled in circuit design which will definitely come in handy during this project. Additionally, I'm not one to shy away from using extra hardware if it's beneficial to the project; I will recommend any necessary breakout boards or modules, before diving into coding, to ensure transparency and that no surprises pop up along the way. In summary, I bring several years of continuous learning, adaptability, and substantial skills including proficiency with KiCad and EasyEDA pro (PCB design), understanding of communication systems (Bluetooth/Wi-Fi), solid hardware debugging competence, strong system configuration ability (MQTT & MQTT client/streaming) to effectively bring your vision into reality.
₹6.000 INR em 7 dias
2,9
2,9

As an experienced and dedicated software developer, I am confident that I can provide you with a tailored solution to turn your ESP32 into a highly-functional sensor hub. My 9+ years of hands-on experience in web and mobile development, including Android and Java, give me a deep understanding of Arduino-ESP32 and ESP-IDF platforms - which will be essential for well-commented, functional code that polls your sensors while efficiently filtering noise. Moreover, since some of your sensors require hard-wiring while others need wireless connectivity, my proficiency in multiple programming languages such as PHP & Java ensures I can seamlessly handle both scenarios. I believe in going beyond short-term solutions, and thus promise to provide you with comprehensive configuration notes that will empower you to easily pair or re-pair any wireless sensors as needed. In addition to delivering a workspace bundle that contains the clear wiring / pin-out diagrams and well-explained codebase, my after-delivery support is something you can rely on. With me onboard, you've got a professional who's skilled at anticipating potential needs. So if additional breakout boards or modules are necessary before we being coding - that won't be a surprise. My aim is to not just meet but exceed your expectations. Rest assured your ESP32 project with me would be handled with diligence, expertise and yield clean values in the serial monitor without any compromise on reliability or efficiency
₹15.000 INR em 7 dias
0,0
0,0

Hello, I can help integrate your ESP sensors with MQTT, set up the broker and topics, and ensure reliable data transmission to your dashboard or server. I have experience with ESP32/ESP8266 firmware, MQTT configuration, and IoT data workflows, and can deliver a complete setup that works smoothly. Regards, Bharti
₹7.000 INR em 7 dias
0,0
0,0

As a seasoned software developer with an emphasis on hardware and sensor integration, I believe I am the perfect fit for your ESP32 Sensor Integration project. Working at Apart Technologies, our expertise spans the entire spectrum of digital experiences. We have helped various organizations build IoT solutions and are excited to bring that knowledge to your project. Our team possesses extensive proficiency in both Arduino-ESP32 and ESP-IDF platforms, giving us an in-depth knowledge of the tools necessary for seamless firmware development. Our understanding of sensor networking including motion, proximity, light, and sound sensors will be crucial in ensuring proper data collection and analysis just as you envision. In terms of transparency, we’ll provide well-commented source code along with a comprehensive README file incorporating all necessary information regarding library installs, flash commands and expected outputs. The wiring/ pin-out diagram for hard-wired sensors will also be included to give you absolute clarity on the setup. Additionally, configuring or reconfiguring wireless sensors is something we are experienced in and we’ll include detailed notes on how to pair or re-pair these devices.
₹7.000 INR em 7 dias
0,0
0,0

Hello, I can complete your ESP32 sensor hub project as described. One suggestion I would like to propose is using the Blynk IoT platform along with MQTT and Serial monitoring. With Blynk, you will be able to: • Monitor motion, proximity, light, and sound sensor data in real time from your mobile phone or web dashboard • Easily visualize the sensor values using widgets and graphs • Adjust settings such as data update interval remotely The ESP32 firmware will still read all sensors, filter noise, and send data through Serial and MQTT as required, while Blynk will provide an additional convenient interface for monitoring. Please let me know if you are comfortable including Blynk in the implementation. Thank you.
₹1.500 INR em 2 dias
0,0
0,0

Hello, I have 1.5+ years of experience in Embedded Systems development and have worked with microcontrollers like ESP32, Arduino, and Raspberry Pi. I have good experience with sensor interfacing (motion, proximity, light, sound), GPIO configuration, and communication protocols. For this project, I can: • Integrate wired sensors with ESP32 using GPIO pins. • Configure wireless sensors via BLE or WiFi. • Implement clean and well-commented firmware using Arduino-ESP32 or ESP-IDF. • Filter sensor noise and stream data over Serial and MQTT. • Provide a clear wiring / pin-out diagram for all sensors. • Deliver configuration notes for pairing wireless sensors. • Provide a README with setup instructions, libraries, and flashing steps. I will ensure the ESP32 automatically detects sensors on startup and reliably streams motion, proximity, light, and sound data at configurable intervals without watchdog resets. I focus on clean code, stable firmware, and proper documentation. Looking forward to working with you. Best Regards, VJ Embedded Systems Engineer
₹7.000 INR em 7 dias
0,0
0,0

I am an Embedded Systems developer with strong experience in ESP32 firmware development, sensor integration, and MQTT-based IoT systems. I have worked extensively with motion, proximity, light, and sound sensors, both via GPIO interfaces and wireless protocols like BLE/Wi-Fi. For this project, I will deliver: • Clean and well-commented ESP32 firmware (Arduino-ESP32 or ESP-IDF) • Reliable sensor polling with noise filtering and adjustable sampling interval • MQTT publishing with structured data for easy monitoring • Auto-detection of wired and wireless sensors on boot • Complete wiring diagram and GPIO pin-out documentation • Setup guide for flashing firmware and pairing wireless sensors I focus on robust embedded code, clear documentation, and stable MQTT streaming without watchdog resets. I can also recommend appropriate breakout modules if required. Looking forward to working with you.
₹7.000 INR em 7 dias
0,0
0,0

I am an Embedded Systems Engineer with experience in ESP32 development, sensor integration, and IoT communication (MQTT, Wi-Fi, BLE). I can help transform your ESP32 dev board into a compact multi-sensor hub focused on motion, proximity, light, and sound sensing. I will develop well-structured and fully commented firmware (Arduino-ESP32 or ESP-IDF) that reads all sensors, applies basic noise filtering, and publishes the data through Serial and MQTT at an adjustable interval. The system will support both wired sensors connected to GPIO pins and wireless sensors discovered via BLE or Wi-Fi, with automatic detection during startup. You will receive: • Clean and well-commented source code • A clear GPIO wiring / pin-out diagram for the wired sensors • Configuration instructions for pairing or re-pairing wireless modules • A concise README explaining library installation, flashing commands, and expected output Before implementation, I will also recommend reliable sensor modules or breakout boards if needed to ensure stable integration. My goal is to deliver a stable system that streams motion, proximity, light, and sound data to MQTT and Serial without warnings or watchdog resets.
₹10.000 INR em 7 dias
0,0
0,0

I can develop a reliable ESP32 sensor hub that integrates motion, proximity, light, and sound sensors using both GPIO wired connections and wireless modules (BLE/Wi-Fi). The firmware will automatically detect connected sensors at startup and begin streaming clean data via Serial and MQTT, allowing easy monitoring through any MQTT client. The project will be implemented using Arduino-ESP32 or ESP-IDF based on your preference. The code will be modular, well-commented, and designed for stable sensor polling, noise filtering, and efficient data publishing. The sampling interval will be adjustable so you can control how frequently readings are sent. Deliverables include: • Well-commented ESP32 firmware that reads all sensors and publishes data via Serial and MQTT • Reliable polling with noise filtering for motion, proximity, light, and sound sensors • Clear wiring / GPIO pin-out diagram for all hard-wired sensors • Configuration notes explaining how to pair or re-pair wireless sensor modules • A short README covering required libraries, installation steps, flashing commands, and expected serial/MQTT output Before development begins, I will review the sensors being used and recommend any additional breakout boards or modules if needed to ensure compatibility and stable readings. The final system will auto-detect sensors on boot and stream clean data continuously without compilation warnings, crashes, or watchdog resets, meeting the project acceptance criteria.
₹1.500 INR em 7 dias
0,0
0,0

I'm into embedded industry since 4 years I have good knowledge on Built hundred's of projects on different microcontrollers, robotics and customized embedded projects... Why me *open to share knowledge *Get the best quality work delivered on time *120% client satisfactory *Get regular updates on your project *I won't leave a client just after project delivery.. I ll be constantly reach you out for further enhancement. Skills:- >Microcontroller programming: - Atmel - ATmega microcontrollers - Espressif - ESP8266 with Arduino IDE, ESP32 with Arduino IDE, MicroPython >Microcontroller interfacing: - Internet of Things - Wi-Fi, Bluetooth and BLE connectivity (ESP8266/32, nRF51) - Input modules - GPS, IMU, Distance and other sensors - Output peripherals - Motors, LCD, speakers etc. - Communication protocols - I2C, SPI, Serial, CAN, PPM, PWM, Ethernet, Automotive Ethernet etc. >Embedded Linux computers - Raspberry Pi: - Programming and interfacing with various IO modules - Computer Vision using Raspberry Pi camera >Operating Systems: - Windows, Ubuntu, Raspbian, Kali Linux, CentOS (Virtual machines on VMWare & VirtualBox) >Software: -Arduino IDE, Processing, Basic Android Studio etc. -Computer Vision using OpenCV and Python
₹7.000 INR em 7 dias
0,0
0,0

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