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I’m bringing an MLX90614 infrared 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 to retrieve the CSV later Please include a brief README covering library installs, flashing steps, and a quick functional test so I know everything is wired and configured correctly. Once your sketch compiles, uploads, and logs temperature data as described, I’ll consider the project complete. Also need a firmware development to integrate through blynk app
Project ID: 40638106
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59 freelancers are bidding on average ₹21,130 INR for this job

Hi, I can help integrate the MLX90614 with your ESP32 and develop the complete firmware, including I²C setup, accurate ambient/object temperature readings, data logging, and Blynk integration. I can provide clean Arduino-compatible code, wiring/pin documentation, CSV logging to SPIFFS or microSD, and a Blynk dashboard for monitoring the temperature remotely. I'll also include a simple README with library installation, flashing, and testing steps. I have experience with ESP32, I²C sensors, Wi-Fi, Blynk, and embedded firmware, so I can get this working quickly. Thanks!
₹13,000 INR in 7 days
7.5
7.5

As an experienced professional well-versed in Arduino, C programming, and Electronics, I have successfully undertaken and completed various projects involving the skill sets you require. My proficiency in Embedded Systems, particularly with ESP32 and ESP8266 modules, makes me a perfect fit for your task. In addition, my knowledge on I2C protocol and Microcontroller hardware would ensure an immaculate integration of MLX90614 infrared temperature sensor in your ESP32-based design. Moreover, my past engagements with digital logging along with real-time data streaming aligns well with the requirements of this project. I can promptly furnish you with a comprehensive documentation of the wiring system to facilitate your future reproductions. My capability of delivering organized and clearly-commented codes ensures a hassle-free operational handover. I also noticed that you needed firmware integration through blynk app. I would love to take in that challenge as well, being familiar with blynk app development and its application for monitoring electronics systems. Overall, I believe the amalgam of my skills in Arduino, C programming, Electronics and Embedded Systems coupled with my acquaintance involving MLX90614 sensor integration will provide the best possible solution for your project. I look forward to working with you!
₹37,500 INR in 10 days
7.4
7.4

Hi there, I have carefully reviewed your ESP32 + MLX90614 requirements and can deliver the complete firmware solution, including accurate I²C temperature acquisition, real-time display, timestamped CSV logging, and Blynk app integration. With nearly five years of experience in mechatronics, ESP32 development, sensors, embedded C/C++, I²C interfaces, data logging, and IoT connectivity, I can provide clean wiring documentation, well-commented firmware, flashing instructions, and a simple validation procedure. I can support Serial, OLED/Nextion display, SPIFFS or micro-SD logging, and Blynk monitoring/alerts depending on your preferred setup. Please send me a message so we can confirm the ESP32 board, display, and logging method and get started quickly. Best regards, Samuel tshibangu
₹25,000 INR in 1 day
6.5
6.5

Hey there! I’m Alok, A PCB, Circuit and Mechanical designer with a passion for turning ideas into rock-solid, high-performance circuit boards. even expert on Python, C, C++ With nearly a decade of experience, I’ve tackled everything from compact consumer gadgets to complex industrial systems—always with a focus on precision, efficiency, and reliability. # Schematic & Layout Design – Clean, optimized, and manufacturable. # Component Selection & Library Management – No surprises, just the right parts for the job. # Reverse Engineering – PCB cloning, replication, and improvements. # Gerber, BOM & CPL Generation – Ready for seamless production. # DFM & DFA Expertise – Because great design means smooth manufacturing. # Multi-Layer, Flex, & High-Density PCB Design – Whatever the project needs. If you need a PCB and Code that’s efficient, reliable, and built for real-world performance, let’s chat. I’d love to help bring your project to life!
₹25,000 INR in 7 days
5.9
5.9

HI, KINDLY READ THROUGH MY PROPOSAL I will deliver a clean, ready-to-flash ESP32 solution for the MLX90614 infrared sensor that gives accurate object and ambient readings, on-screen display, reliable timestamped logging, and full Blynk app integration for remote monitoring. MY APPROACH ✅ Phase 1: Document exact wiring (pin map, I²C pull-ups, 3 V power) and set up the MLX90614 on ESP32. ✅ Phase 2: Write well-commented Arduino/ESP-IDF code for polling, Serial/OLED display, SPIFFS or SD logging to CSV, and Blynk connectivity. ✅ Phase 3: Supply README with library installs, flashing steps and functional test checklist. RELEVANT PROJECTS - ESP32 + MLX90614 temperature monitoring systems with local display and cloud dashboards. - Experience with SPIFFS/SD logging, Blynk apps and clean production-ready firmware. DELIVERABLES - Wiring diagram and pin map - Fully commented firmware with Blynk integration - README + CSV logging solution ready to retrieve QUESTIONS 1. Do you already have an OLED/Nextion screen, or should Serial Monitor be the primary display? 2. Preferred logging medium (SPIFFS or micro-SD) and Blynk template preferences? 3. Can you confirm the exact ESP32 board variant you are using? Ready to start immediately and deliver a compiling, tested sketch.
₹25,000 INR in 3 days
6.2
6.2

As a seasoned professional versed in everything needed for your ESP32 MLX90614 Sensor Integration project, I am confident that my skills and experience make me the strongest candidate for this job. My name is MOHD SADAB and I have a proven track record of successfully developing and documenting intricate embedded systems, including Arduino-compatible code, which is essential for your project. Moreover, I am well-versed in handling diverse hardware integrations and have deep knowledge of working with ESP32s and STM32s firmware, precisely what you require. My experience extends to deploying MQTT-connected sensor networks, translating to a thorough understanding of how to ensure accurate temperature readings while simultaneously employing an effective data logging mechanism; expertise that will undoubtedly come in handy for your project. Lastly, another skill I bring to the table is my proficiency with Blynk app integrations. I assure you that the final deliverable will not only fulfill your immediate goals but also incorporate the potential for further expansion or customization according to your future needs. With me at the helm, you can trust that you'll receive a ready-to-flash solution that perfectly adheres to your specifications and effectively streamlines your desired functionalities. Let's connect our skills to bring your intricate project vision into an optimized reality!
₹25,000 INR in 7 days
5.5
5.5

As an experienced Electrical Engineer and Data Scientist, my unique blend of skills makes me the perfect fit for this project. I have extensive knowledge of Arduino and Electronics, with a specialization in PCB design and circuit development which would serve handy in document wiring the MLX90614 to ESP32. Additionally, my command over MATLAB Simulink allows me to implement advanced techniques in signal processing, image processing, and mathematical modeling, essential for ensuring accurate temperature readings from the sensor. Talking about Programming and Automation skills, I am proficient in C/C++, Python, Java, giving me a strong command over ESP-IDF framework that you mentioned. I can seamlessly create well-commented Arduino-compatible code that polls the sensor at an appropriate interval, streams both object and ambient temperatures to Serial Monitor or an OLED/Nextion screen as per your choice, storing each reading with a time stamp to either SPIFFS or a micro-SD card. My familiarity with library installs, flashing steps make it easier for me to compile and upload sketches.
₹37,000 INR in 7 days
5.1
5.1

Hi, I can do this ESP32 + MLX90614 integration. I can deliver the wiring guide, firmware for stable temperature reading, serial/display output, and timestamped CSV logging on SPIFFS or microSD, along with a short README for setup and testing. I also have experience with ESP32-based IoT development, so I can support the Blynk side as well. To keep the result clean and reliable, it is best to define the Blynk scope clearly at the start.
₹17,000 INR in 7 days
5.4
5.4

Hi, Greetings! I am interested in working on your project. Please share the design details, specifications, and project requirements so we can discuss them further. I look forward to working with you. Thank you. Shivkant Verma
₹25,000 INR in 7 days
4.7
4.7

Hello, I can develop the ESP32 firmware and wiring documentation for your MLX90614 infrared temperature sensor project. My plan is to write clean Arduino C++ firmware that reads object and ambient temperatures from the MLX90614 over I2C. I can configure an SSD1306 OLED screen or Serial Monitor display to show real time temperature values. I can implement data logging to LittleFS or SPIFFS saving timestamped records in CSV format. I can also integrate the Blynk library to stream object and ambient temperatures to virtual pins on your Blynk mobile app dashboard. I can provide complete wiring diagrams detailing I2C SDA and SCL pinouts 4.7k pull up resistors and 3.3V power decoupling requirements. 1) Do you prefer using LittleFS or an external microSD card module for saving the CSV log files? 2) Should the local display be an I2C SSD1306 OLED or a Nextion touchscreen panel? 3) Which Blynk version like Blynk IoT 2.0 do you want configured for the app interface? Thanks, Bharat
₹25,000 INR in 7 days
4.5
4.5

Hello, I can develop the complete ESP32 firmware for your MLX90614 temperature sensor project. I will provide clear wiring details, accurate object and ambient temperature readings, serial or display output, and CSV data logging with timestamps. I can also integrate the system with the Blynk app so you can monitor temperature remotely. The code will be clean, well commented, and easy to modify. I will also provide a simple README with library setup, flashing steps, wiring details, and testing instructions. I will test the firmware to make sure the sensor readings, data logging, and Blynk connection work reliably before delivery. I am ready to start and can provide a complete working solution.
₹12,500 INR in 7 days
4.9
4.9

Hi, I can develop the ESP32 firmware for MLX90614 sensor integration with accurate temperature reading, display output, CSV logging, and Blynk app connectivity. The best solution is to first define the ESP32 board, display type, logging method, and Blynk dashboard requirements. Then I’ll provide clear wiring documentation for MLX90614 over I2C, including pin map, pull-ups, 3.3V power notes, and stable sensor communication. After that, I’ll write Arduino-compatible ESP32 code to read ambient/object temperature, show values on Serial/OLED/Nextion, save timestamped CSV logs, and send live data to Blynk. I’m comfortable with ESP32, Arduino firmware, ESP-IDF basics, MLX90614, I2C sensors, OLED/Nextion displays, SPIFFS/micro-SD logging, CSV data storage, Blynk IoT integration, and embedded debugging. Deliverables will include: * ESP32 + MLX90614 wiring guide * I2C pin map and pull-up notes * Arduino-compatible firmware * Ambient/object temperature readings * Serial/display output * Timestamped CSV logging * SPIFFS or micro-SD support * Blynk app integration * Well-commented source code * Library install and flashing README * Functional test steps I’ll focus on a clean, ready-to-flash solution that compiles properly, reads accurately, logs data reliably, and works smoothly with the Blynk app. Best regards Ankit
₹12,500 INR in 2 days
3.9
3.9

You've got a clear spec — MLX90614 on ESP32, clean readings, display output, CSV logging, and Blynk on top. I've shipped this exact combination before, so there's no learning curve here. The I²C quirks on the MLX90614 and the 3 V rail are well-trodden ground for me. Here's what I bring to this: → I've built multiple MLX90614 + ESP32 sensor nodes — including one for a cold-chain monitoring client where stable readings and reliable logging were non-negotiable → I'll deliver the complete package: wiring doc with pull-ups and power notes, well-commented Arduino code (or ESP-IDF if you prefer), a README covering installs and a functional test → I'll add the Blynk integration so you get live temperature on your phone alongside the local display and CSV logging My approach: → I'll start with the wiring and pin map, then build the core polling and logging logic with clean, commented code → I'll integrate the display output and Blynk firmware, then test the full flow — flash, upload, log, and verify the CSV works → I'll hand over everything with a short README so you can reproduce and verify the setup yourself Happy to walk you through my approach and past work on a chat.
₹13,000 INR in 3 days
3.5
3.5

Hi, I can help develop the ESP32 firmware for the MLX90614 and integrate it with Blynk. I have experience with ESP32 embedded systems, sensors, I²C communication, data logging, and IoT firmware. Scope of work 1. MLX90614 integration Document ESP32 pin mapping, I²C pull-ups, and 3.3 V power considerations. Implement reliable sensor communication and read object/ambient temperatures. Periodic sampling and Serial Monitor output. CSV logging to SPIFFS/LittleFS, including NTP timestamps when WiFi is available. 2. Blynk integration Basic Blynk IoT monitoring for one ESP32. Object and ambient temperature display. Periodic data updates. Basic connection/reconnection handling. Simple visualization/history where supported. Blynk scope is limited to basic monitoring/data visualization and excludes custom apps, complex dashboards, multiple-device management, OTA, WiFi provisioning, backend development, and advanced automation. 3. Documentation A concise README covering wiring, libraries, Blynk configuration, flashing, CSV format, and functional testing. Deliverable A tested Arduino-compatible ESP32 firmware project that compiles, flashes, reads/logs temperature data, and sends the defined data to Blynk. Points to confirm Exact ESP32 board/module and MLX90614 model? Serial Monitor, OLED, or Nextion? SPIFFS/LittleFS or existing micro-SD? Is an existing Blynk IoT template available? Are Blynk alarms/thresholds required? Best regards, Hammurabi
₹22,000 INR in 9 days
3.3
3.3

I completely understand what you're building here — getting clean, reliable readings from the MLX90614 on an ESP32, with a display and logged data you can actually use later. The Blynk integration on top makes it a proper little IoT project, and I can see you've thought through the details carefully. Here's what I bring to this: → I've worked with the MLX90614 on ESP32 across several sensor projects — I know the I²C quirks, the pull-up values that actually work, and how to keep readings stable on the 3 V rail → I'll deliver a complete, ready-to-flash solution: wiring doc, well-commented Arduino code, README with library installs and a functional test so you can verify everything works → I'll handle the full stack — sensor polling, OLED or Serial output, CSV logging to SPIFFS, and the Blynk integration for remote temperature monitoring My approach: → First, I'll map out the exact wiring and pin assignments, then write the core sensor and logging code with clean, commented structure → Next, I'll build the Blynk firmware so you get live object and ambient temperature on your phone, with the data still logging locally → Finally, I'll test the complete flow — flash, upload, log, and verify the CSV is retrievable — and hand over everything with a short README
₹12,500 INR in 5 days
3.4
3.4

Hello, We can help you develop the complete ESP32 + MLX90614 temperature monitoring system, including the firmware and Blynk integration.( We can also share our previous work experience of blynk app in chat) We’ll start by documenting the exact wiring between the ESP32 and MLX90614, including I²C connections, pull-ups and 3.3V power requirements. On the firmware side, we’ll implement reliable object and ambient temperature readings, periodic sampling, Serial Monitor output and timestamped CSV logging. We’ll also integrate the system with Blynk, so the temperature can be monitored from a mobile dashboard in real time, with suitable widgets for object temperature, ambient temperature and historical readings. Wi-Fi/Blynk reconnection and sensor error handling will also be considered. The final handover will include the complete source code, wiring documentation and a simple README explaining library installation, flashing, Blynk setup, logging and functional testing. Timeline: 6 Days Budget: ₹13,000 We can start immediately and will keep you updated during development. The design will also be kept flexible so additional sensors, alerts or features can be added later. Regards, M&C Eng
₹13,000 INR in 6 days
2.5
2.5

Namaste I see you need a ready‑to‑flash ESP32 sketch that reads the MLX90614, shows temperatures on screen and logs them with timestamps. I will provide a wiring diagram with pull‑up details, write commented Arduino code that polls the sensor every second, prints object and ambient values, and saves a CSV to SPIFFS or a micro‑SD card as you prefer. A short README will cover library install, flashing steps and a quick test, plus Blynk integration for remote monitoring. My price for the complete deliverable is 30,000 INR. Do you have a specific OLED or Nextion model in mind Do you prefer SPIFFS or SD for logging Will the Blynk app use the default server or a private one Let’s start with a brief chat to confirm details
₹30,000 INR in 2 days
0.9
0.9

I have experience developing embedded firmware, ESP32-based IoT solutions, sensor integrations, and connected device applications. My approach would be to create a reliable firmware solution that combines accurate MLX90614 temperature sensing, real-time display, data logging, and Blynk-based remote monitoring. For this project, I would focus on documenting the hardware setup, implementing I²C communication, developing Arduino/ESP32 firmware, integrating SPIFFS or micro-SD logging, streaming sensor data, and connecting the device with the Blynk app. My initial priorities would be stable sensor readings, clean firmware structure, easy data retrieval, and providing clear documentation for setup, flashing, and testing. I have worked with ESP32, Arduino, embedded systems, I²C sensors, firmware development, IoT integrations, and production-ready device solutions, and I'm confident I can help build a reliable temperature monitoring system with Blynk connectivity. I'd be happy to discuss the project and outline a clear development roadmap with practical milestones.
₹15,000 INR in 3 days
0.0
0.0

Hi, I can develop the complete ESP32 + MLX90614 firmware and integrate it with the Blynk app. My approach would include: * MLX90614 I²C wiring documentation, including SDA/SCL, pull-ups, 3.3V power considerations, and pin mapping. * Arduino-compatible ESP32 firmware with clean, well-commented code. * Accurate reading of both **object and ambient temperature** at a suitable polling interval. * Real-time temperature display through Serial Monitor and/or OLED if required. * **Blynk integration** to display live temperature values remotely and monitor the ESP32 from the mobile app. * Configurable Blynk virtual pins, thresholds/alerts, and connection/reconnection handling. * CSV data logging using **SPIFFS or micro-SD**, including timestamps. * Reliable Wi-Fi and Blynk reconnection logic so temporary network drops don't break the system. * README covering libraries, Blynk configuration, wiring, flashing, and testing. * Final testing to verify sensor readings, Blynk updates, and data logging. Suggested stack ESP32 + Arduino Framework + MLX90614 + Blynk IoT + SPIFFS/micro-SD I can provide the complete source code and a ready-to-flash firmware project, with the architecture kept modular so additional sensors or Blynk controls can be added later.
₹12,500 INR in 7 days
0.0
0.0

Hi, I can develop and deliver a complete ESP32-based MLX90614 temperature monitoring solution as required. I have experience with ESP32 and Arduino development, I2C sensors, sensor data handling and firmware integration. I will provide the MLX90614 wiring/pin documentation, reliable object and ambient temperature readings, Serial Monitor output, timestamped CSV logging through SPIFFS, and Blynk integration for live monitoring. I will also provide well-commented, ready-to-flash code along with a clear README covering library installation, flashing and testing. I can complete and test the project within 3 days and ensure the delivered firmware is easy to modify and use.
₹12,500 INR in 2 days
0.0
0.0

Bengaluru, India
Member since Aug 6, 2026
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