I will develop ble firmware custom gatt services esp32 nrf52 iot

United Kingdom

I speak English

IoT Firmware Engineer ESP32 BLE MQTT Matter LoRa OTA Expert

I build reliable IoT firmware for connected products using ESP32 ESP IDF BLE WiFi MQTT HTTP WebSocket Matter Thread LoRa NB IoT LTE M and OTA systems. I develop smart home devices sensor nodes asset t...
About this Gig

If you need reliable BLE firmware for your device, youre in the right place.


I develop custom Bluetooth Low Energy firmware for ESP32 and Nordic nRF52 devices, focused on stable connections, efficient power usage, and seamless mobile integration.


Most BLE issues come from poor GATT design, weak pairing logic, or unstable communication. I solve that by building structured firmware with clean GATT services, optimized data flow, and strong connection handling.


What I can build for you:


Custom BLE firmware (ESP32 BLE, nRF52 firmware)

GATT services and characteristics design

Secure BLE pairing and bonding

Data transmission between device and mobile app

Low power optimization for battery devices

OTA-ready firmware architecture

Debugging unstable BLE connections


I design firmware that works in real-world conditions, not just in testing.


Whether youre building a wearable, IoT device, smart product, or mobile-connected hardware, I ensure your BLE communication is stable, efficient, and production-ready.


Message me before ordering so we can define your exact requirements.


Platform:

ESP32

Sensors:

Temperature

Humidity

Accelerometer

Ultrasonic

Microphone

Expertise:

Firmware development

RTOS

Debugging

Microcontrollers

Related tags