ESP32 Gateway Development in Bangalore

@elect2eng

I have developed a system which involve esp32, lora for gateway and multiple esp32,lora clients sending data. Gateway was sending data to server via uart. I have done esp32 webserver, configuration webpages etc. I can handle the modem commands to send data to server at periodic interval. Lets discuss.

@Amidst

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!

@Rohith6121

Hello, I lead a technical team specialized in ESP32 industrial gateways. We recently built a Smart Power Grid System utilizing ESP32 with MQTT/Web integration and data queuing—directly relevant to your project. Our Approach to your 3-Week Timeline: Hardware Readiness: We already have ESP32 in our lab ( we get in 2 days from market based on our project SX1262 LoRa, and Quectel 4G modules we can get them ) . We can develop and provide tested firmware/binaries for you to flash immediately, bypassing any shipping delays to Bapatla. Headless Webserver: Interrupt-driven (button press) Asynchronous Web Server with persistent LittleFS/JSON storage for configuration. Reliable Uplink: Expert AT Command handling over UART for 4G, ensuring "store-and-forward" logic for 10-minute packet accumulation. LoRa Management: Optimized SPI-based handling for SX1262 with unique ID filtering and collision management. Why choose us? Experience: 3+ years in C++/Arduino IoT development. Tested Code: We provide industrial-grade, bug-free code with a focus on edge-case stability (4G signal drops, memory leaks). Deliverables: Firmware, custom HTML/CSS web interface, and full technical documentation. We are ready to review your existing code and start Day 1. Can we jump on a quick call to discuss the integration details? Best regards, Rohith Technical Lead | Embedded & AI Solutions

@rishis0295

You're not just looking for a developer — you're looking for someone who can turn your idea into a scalable, high-performing product. That’s exactly where I come in. With 7+ years of experience as a Full Stack Developer, I specialize in building modern, responsive, and user-focused web & mobile applications. From concept to deployment, I handle everything with precision and performance in mind. ? What I Bring to Your Project: Clean, scalable, and maintainable code Fast-loading and SEO-friendly websites Secure backend with optimized APIs Cross-platform mobile app development Smooth UI/UX with attention to detail ? Tech Expertise: Frontend: React, Flutter, HTML, CSS, JavaScript Backend: Node.js, PHP, Laravel Database: MongoDB, MySQL, Firebase

@Bhragav

Dear Client, I am confident in delivering the ESP32 Gateway Development project within your 3-week timeframe, based in Bangalore as required. With extensive experience in embedded systems, IoT, and Arduino development, I specialize in firmware creation that integrates ESP32 with peripherals such as LoRa SX1262 modules and 4G communication via UART. I will develop a robust ESP32 firmware running a headless system that activates a local webserver upon button press, serving dynamic webpages built with HTML. User settings will be reliably stored in the ESP32 filesystem. The firmware will handle LoRa packet reception, uniquely identifying devices, and securely buffering data for periodic transmission every 10 minutes over the 4G module to your remote webserver URL. Multiple development iterations will ensure stability and bug-free functionality. Comprehensive documentation covering setup, usage, and code structure will be included. . I am prepared to work closely with you to meet all project requirements efficiently. Looking forward to your response. Best regards, Prashant

@sanskar988

Hi, I can develop the ESP32-based gateway with local webserver, LoRa packet handling, and 4G data transmission as required. I have experience with ESP32, C/C++, and IoT communication systems. I can deliver a stable, tested solution within 3 weeks, including web UI, data storage, and reliable transmission. Let’s discuss further and start quickly.

@satyaevolfast

Hello, I am excited to apply for your ESP32 gateway development project. With over two years of experience in embedded systems and a strong background in C/C++, I can deliver a reliable solution that meets your specifications. My approach involves developing firmware that runs the local webserver on the ESP32, which will provide user-friendly webpages for configuration. When the button is pressed, the system will initialize the webserver, and user input will be stored on the ESP32’s filesystem. For handling LoRa packets from various devices, I will implement a robust reception mechanism ensuring each packet’s unique ID is captured. Additionally, I'll configure the 4G module for periodic data transmission to your designated webserver, adhering to the 10-minute interval requirement. I will ensure thorough testing to provide a bug-free experience and deliver full documentation for setup and usage. As this is a scalable project, my team at ASPL can offer support if necessary. I'm confident in successfully completing this within your three-week timeline. Let’s discuss the final details further. Best regards, Satya

@Anjali0215

Hi, I understand your requirement for an ESP32-based gateway with LoRa and 4G integration, including a button-triggered local webserver, data storage, and periodic transmission. I have experience working with ESP32 (Arduino environment), UART-based 4G modules, and handling real-time data flows, so I can help build a stable and well-structured solution. I can implement the local webserver with configurable pages, ensure reliable LoRa packet handling and storage, and set up scheduled data transmission over the Quectel 4G module. I’ll also focus on clean code, proper error handling, and thorough testing across iterations to ensure stability. I understand the importance of working closely during development and delivering a fully tested solution with clear documentation. If required, I can also share similar project experience. Looking forward to discussing this further.

@ssce692

I have solid experience building ESP32 gateway systems combining LoRa, cellular, and embedded web interfaces. I would structure the firmware with clear separation between LoRa RX, local storage, webserver, and 4G uplink. LoRa SX1262 would run interrupt-driven (DIO1) with a buffered queue and timestamping per packet. Data can be stored in RAM with optional LittleFS persistence if overflow or reliability across reboot is needed. The webserver will run only when the button is pressed by switching ESP32 into AP mode. I typically use ESPAsyncWebServer for responsiveness. Webpage will include status + configuration, with all parameters stored in LittleFS (JSON, atomic write to avoid corruption). No heavy frontend, just lightweight HTML/JS. For the 4G module (Quectel over UART), I’ll implement a non-blocking AT command state machine handling network attach, HTTP POST, retries, and failure recovery. տվյալ transmission every 10 minutes using batching of collected LoRa packets. Backoff and retry logic included. Scheduling will be millis()-based (unless you prefer FreeRTOS tasks), ensuring no blocking across subsystems. Watchdog-safe design. I’ve worked with ESP32, LoRa (SX126x), UART cellular modules, filesystem (LittleFS/SPIFFS), and embedded web UIs in Arduino environment, and can deliver stable, testable code. Let me know if remote is an option.

@Sh4h11d

Hi, I have hands-on experience with ESP32, LoRa (SX1262), and 4G (UART-based modules), and I can develop a reliable firmware solution for your gateway. I will implement a button-triggered webserver on ESP32 with 2–3 webpages over WiFi, allowing users to view and update settings stored in the file system (SPIFFS/LittleFS). I can also ensure stable LoRa packet reception from multiple devices and periodic (10-minute) transmission of stored data to your server via the 4G module. I work in Arduino environment, write clean and modular code, and ensure proper testing for bug-free performance. I am comfortable with iterative development and your 3-week timeline. Looking forward to working with you. Best regards

@Sreedharanp

I have over 3 years of hands-on experience with ESP32 in the Arduino environment, including LoRa (SX1262), 4G modules (Quectel), UART communication, and embedded webservers. I have built similar IoT gateway systems involving data collection, local configuration UI, and cloud communication. Based on your requirements, I propose: **ESP32 Webserver (On-Demand)** * Button-triggered WiFi AP + local webserver * 2–3 responsive webpages for configuration/monitoring * Persistent storage using SPIFFS/LittleFS **LoRa Integration** * Reliable packet reception from multiple nodes * Unique ID-based handling * Efficient buffering mechanism **4G Communication** * AT command handling via UART * MQTT/HTTP data transmission * Scheduled upload every 10 minutes with retry logic **Data Handling** * Queue-based packet storage * No data loss during failures * Memory-efficient design **Quality & Documentation** * Modular, well-structured code * Thorough testing and debug logs * Complete setup and usage documentation I am comfortable with iterative development and will ensure a stable, deployment-ready solution. Note: I am based in Salem, Tamil Nadu (not Bangalore), but available for remote collaboration.