I will develop esp32 firmware with blue, wifi and lvgl display UI

Need reliable firmware for your ESP32 product? I'm an Electronics Engineer with 10+ years of experience in industrial electronics testing and embedded development. I build production-grade firmware for ESP32 and ESP32-S3 devices.

What I can do:

• BLE (NimBLE): custom GATT services, sensor peripherals, multi-device hubs
• WiFi: MQTT, HTTP/REST, OTA updates, web configuration portals
• Touch display UIs with LVGL
• Sensor integration: I2C, SPI, UART, RS485/Modbus, 4-20mA
• Low-power modes and battery optimization
• Debugging and fixing existing ESP-IDF or Arduino code
• Optional Flutter companion app for Android/iOS

Why work with me:

Real industrial experience: test rigs and monitoring systems running on production lines

Clean, commented, modular code (ESP-IDF or Arduino/PlatformIO)

Tested on real hardware before delivery, with a demo video

Clear communication in English and Spanish

Please message me before ordering. Tell me your board, your sensors, and what the device should do, so I can confirm scope and timeline.