ESP32 Load-Cell IoT Prototype

@amelectronics

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.

@Srashtasoft

Hi there, I have read your project requirement. You need a complete ESP32 + HX711 weight measurement solution including firmware development, BLE/Wi-Fi communication, and a cross-platform mobile app for real-time monitoring and calibration. We have experience with ESP32 firmware, IoT communication, BLE, MQTT/HTTP APIs, Flutter app development, and sensor calibration workflows. We can help build a stable, battery-efficient prototype with accurate readings and reliable mobile connectivity. We can assist with: • HX711 calibration and tare routines • Stable weight sampling and filtering logic • MQTT/HTTP or BLE communication setup • Auto-reconnect and low-power ESP32 firmware • Flutter or React Native mobile app development • Real-time weight monitoring and history tracking • Offline local storage and cloud sync support • Android and iOS testing support A few questions: ============ Do you prefer BLE-only communication or Wi-Fi + cloud support as well? Which cloud platform are you planning to use for syncing data? What sampling frequency do you expect for readings? Do you already have the load cell specifications and capacity available? Best Regards, Srashtasoft Team

@technologiesit

As an experienced Full Stack Developer and proficient in both Flutter and React Native, I'm confident of providing you with a robust, scalable, and user-friendly solution for your ESP32 Load-Cell IoT Prototype project. My expertise extends over 10+ years in developing mobile apps with clean, cross-platform UIs that are built to last. You can trust me to deliver the reliable firmware-to-mobile workflow you need. I am well-versed in handling low-power sleep strategies, JSON payload transmission methods (MQTT or HTTP), and readable calibrations for precise weight measurement. Plus, my grasp on both Flutter and React Native ensures that your companion mobile app will be functional on iOS as well as Android without compromising the user experience. I've always focused on helping businesses grow by leveraging modern technologies, and your project falls perfectly within that domain. I'll ensure that your app auto-discovers the device over local networks or pairs via BLE seamlessly and transmits real-time weight data alongside useful details like running average and historical readings. impeccable source code, consistent weight accuracy within ±2g after calibration, automatic network reconnections - I will deliver a solution that meets all your acceptance criteria successfully.

@NEHABHAT92

As an experienced freelancer in Mobile App development with a specialty in Android, Flutter and React Native, I am confident in my ability to deliver the complete firmware-to-mobile workflow that your ESP32 Load-Cell IoT Prototype requires. With over 9+ years of experience in the field and a proven track record of delivering quality work, I value effective cost and support. My primary focus is to provide real value to my clients, which aligns perfectly with your project requirements. In terms of hardware, I have extensive knowledge and hands-on experience with HX711 calibration routines, weight sampling techniques (both continuous and on-demand), transmitting JSON payloads over MQTT or HTTP, and implementing low-power sleep strategies. Your project definition resonated deeply with me as these are all areas where I am more than familiar. On the software side, developing clean cross-platform mobile applications that use local storage and offer cloud-syncing is second nature to me. Features such as auto-discovery, BLE pairing, monitoring real-time data and displaying historical readings aligns perfectly with my core skill-set. I have successfully deployed numerous apps on both iOS and Android platforms, passing all necessary tests to be published live. In conclusion, I have both the broad knowledge base and ample capacity to not only provide a bug-free source code for both ESP32 firmware and mobile app but also ensure weight readings stay within ±2 g of a refe

@TheElitePro

Hi, 1. I am based in Ahmedabad & I understand you need a complete ESP32 + HX711 + mobile app workflow delivering calibrated weight measurements to iOS/Android with reliable connectivity, low-power operation, and clean UX. 2. I have experience building ESP32 sensor systems, BLE/Wi-Fi communication layers, and real-time mobile-connected IoT applications, including stable sensor calibration and reconnect-safe firmware. 3. Relevant experience: * ESP32 based USB to WiFi printer * BLE/Wi-Fi based automatic audio bell * Real-time vibration data handling for predictive analytics 4. My approach: a) Arduino ESP32 Firmware b) Mobile App (FlutterFlow preferred) c) I already have a IoT dashboard 5. Deliverables: * ESP32 source code * Flutter/React Native app source * Documentation for calibration and setup 6. I focus on clean end-to-end IoT prototypes that are reliable, maintainable, and easy to extend into production products. 7. I am preferred freelancer with 5 star rating and repeat customers. Regards, Vishal

@CyberSasu

Hello, I’m Saswata Mukhopadhyay, and I specialize in electronics hardware and embedded software development. I can help you with microcontroller-based systems, sensor integration, circuit troubleshooting, firmware coding, and full hardware-software integration. My experience includes ESP32, STM32, Arduino, and Raspberry Pi projects, with a focus on real-world reliability and clean implementation. Whether you need a new product, prototype, or debugging support, I can provide a practical and dependable solution for your project.

@Webslinger01

Hello, I can develop the ESP32 + Load Cell IoT prototype including firmware development, sensor integration, and PCB support. I have worked on similar ESP32-based monitoring and automation systems before, including a cold storage monitoring system with real-time sensor data, IoT connectivity, and embedded control features. I already have ESP32 hardware available and a proper lab setup for testing. I can fully test the prototype in my lab and ship the hardware after project completion. Timeline: 02 days for the initial working prototype. Looking forward to working with you. Best regards,

@ashinnd84

Hello there, we are a team of Data Analysis experts, senior Full Stack Web and Mobile App Developers and we can do this project in no time. Please, send me a message to discuss the work. Thanks Ashish Kumar.

@FranciscoSilvi

Hi There! As you can see in my portfolio by visiting my profile, I have extensive experience using ESP32 and a wide range of MCUs with peripherals like the HX711. This isn't an AI-generated bid like most of the ones you see here. I hope you'll message me directly so we can discuss your project further. I avoid wasting time on unnecessary bids.

@ApieTech

Hi, At APIE Tech, we have hands-on experience with ESP32 firmware, HX711 load cell integration, and cross-platform Flutter mobile apps — which covers exactly what you need end to end. Firmware (ESP32 + HX711): - HX711 calibration routine with tare, unit conversion (g/kg/lbs), and configurable sampling rate - Stable averaged readings to eliminate noise - JSON payload transmission via MQTT (preferred) or HTTP REST - BLE advertising for local device discovery and pairing - Low-power deep sleep mode with wake-on-demand for battery operation - Auto-reconnect on Wi-Fi/BLE drop Mobile App (Flutter — iOS + Android): - Auto-discovery via BLE or local network scan - Real-time weight display with running average and last 50 readings history - Settings screen: unit selection, calibration trigger, sampling interval - Local SQLite storage with cloud sync (Firebase/REST) when connectivity returns - Clean, minimal UI built for reliable TestFlight + Google Play internal testing We can meet the ±2g accuracy requirement after calibration — this is standard with HX711 at proper gain settings and averaging. Delivery in 7 days. Happy to discuss the hardware setup and protocol preference before we start. Best, APIE Tech

@ThynkLoop

As your potential embedded innovation partner, I bring a suite of skills designed specifically to make your project a success. From the hardware side, I have extensive experience in developing solutions across a range of microcontrollers, notably ESP32, complemented by my expertise with sensors and wireless connectivity technologies such as MQTT which will come in handy for your project. Over the years, I've successfully worked on weight sampling systems using HX711 amplifiers and load cells, and provided low-power strategies for running such systems on batteries. On the software side, I am well-versed in both Android and iOS app development, with a special emphasis on building cross-platform mobile apps through tools like Flutter and React Native - making me an ideal candidate to create the clean and effective app that you need. In fact, having architectured apps with features like device pairing over BLE and real-time data display similar to what you're seeking, ensures that I can establish a reliable link between your ESP32 and companion mobile app.

@Mechatechnology

Hi, I specialize in ESP32 firmware and cross-platform mobile development, and this project sits squarely in my wheelhouse. Here is exactly what I will deliver: Firmware (ESP32 + HX711) - Calibration routine with tare, scale factor storage in NVS, and gram/kg/lb conversion - Configurable continuous or on-demand sampling with rolling average and noise filtering - JSON payloads over MQTT (primary) with HTTP fallback - Auto-reconnect on Wi-Fi loss with exponential backoff - Deep sleep between samples, configurable wake interval for battery operation Mobile App (Flutter, iOS + Android) - BLE pairing and mDNS auto-discovery over Wi-Fi - Live weight display, 10-sample running average, last 50 readings chart - Settings screen for unit toggle and remote calibration trigger - SQLite local storage with background cloud sync queue - Passes TestFlight and Play internal testing Accuracy target of plus or minus 2 g is achievable with proper two-point calibration and a stable reference weight during setup. Timeline: 10 days Delivery: Full source code, flash instructions, APK, and TestFlight build Rate: $XXX fixed I have done similar ESP32 sensor-to-app pipelines before and can start immediately. Let us discuss.

@milind3d

I am engineer with having the Embedded system basic knowledge and other things which is important to project

@karthikresonite

Hi, Resonite Technologies has strong experience in ESP32, HX711 load-cell systems, BLE/Wi-Fi communication, and cross-platform mobile app development. We can deliver the complete ESP32-to-mobile workflow including: ✔ HX711 calibration, tare, filtering, unit conversion & stable sampling ✔ MQTT/HTTP JSON transmission with auto-reconnect ✔ BLE + Wi-Fi support with battery-efficient sleep strategy ✔ Flutter/React Native app for iOS & Android ✔ Real-time weight display, averages & last 50 readings history ✔ Device auto-discovery / BLE pairing ✔ Settings for calibration, units & sampling ✔ Offline local storage with later cloud sync Our team has built IoT monitoring and sensor-based applications with reliable firmware and clean mobile UI/UX. We can ensure accurate calibrated readings within the required ±2g tolerance. Deliverables: • ESP32 firmware source • Mobile app source code • APK/IPA builds • Redirect-ready API/protocol documentation • Deployment & testing support We focus on production-ready delivery, stable reconnection handling, and smooth TestFlight/Google Play internal testing. Regards, Karthik Resonite Technologies

@anjalin0309

Hi! I’ve worked extensively with ESP32, sensor interfaces, and end-to-end IoT pipelines, and I can deliver your complete firmware-to-mobile weight measurement system exactly as described. On the firmware side, I’ll implement a fully stable HX711 pipeline with: Precise calibration (tare + unit conversion) Configurable continuous/on-demand sampling MQTT or HTTP JSON payload transmission Robust reconnection logic + low-power sleep modes for battery use You’ll receive clean, modular ESP32 code that compiles without errors and outputs stable readings within your ±2 g spec after calibration. For the mobile app, I can build a smooth cross-platform interface (Flutter/React Native) with: Auto-discovery or BLE pairing Real-time weight, running average, last 50 readings Settings for units + calibration triggers Local storage with cloud sync when online Builds ready for TestFlight + Google Play internal testing You’ll get: ✓ Full ESP32 source ✓ Full mobile app source ✓ APK + IPA build-ready bundles ✓ Support until your hardware tests match expected accuracy I can start immediately and deliver a reliable, production-friendly prototype. Let’s discuss your timeline!