IoT Smart Light

The aim of the project was to design remotely controlled device which emits RGB light. The device is connected to Azure cloud and can be controlled via mobile app from anywhere in the world. RGB LED strip allows to emits light in 16.8 million colours. Thanks to light detection module brightness of the light can be set automatically.

General information

• RGB LED Device
• Connection with cloud
• Control via mobile app
• Automatic brightness adjustment

Technologies used

• C++
• Microsoft Azure
• IoT Hub
• Autodesk EAGLE
• ESP-32

Schematic

Components description

• ESP-32 - microcontroller
• X1(JP1) - Power module with DC 2.1/5.5mm socket
• LED_STRIP - LED RGB WS2812 5050
• R1 - 10k resistor
• PH1 - GL5539 50k-100k photoresistor

Breadboard version

PCB version

Instruction

1. Create your device using Circuit_diagram.pdf.
2. Create account on Microsoft Azure.
3. Create IoT Hub.
4. In IoT Hub add new device via Devices > Add Device.
5. Clone repository.
6. Open AzIoTConfig.h file.

• Enter Wi-Fi credentials, network name IOT_CONFIG_WIFI_SSID and password IOT_CONFIG_WIFI_PASSWORD.
• In IoT Hub open Overview to show hostname.
• Enter cloud hostname IOT_CONFIG_IOTHUB_FQDN.
• In IoT Hub open Devices > Your Device Name to show cloud device credentials.
• Enter cloud device credentials, Device ID IOT_CONFIG_DEVICE_ID and Primary Key IOT_CONFIG_DEVICE_KEY.

7. Build and upload programme to ESP-32.
8. Use Smart Ligth app to controll your device.