ESP32 TTGO Bluetooth Device Scanner

In this project we will learn how to make a Bluetooth Scanner using a ESP32 TTGO to Display the Bluetooth devices around.

Step 1: What You Will Need

• TTGO ESP32
• Some Bluetooth device that you will try to locate like a smart bracelet ,etc
• Visuino program: Download Visuino

Step 2: Start Visuino, and Select the Arduino TTGO T-Display ESP32 Board Type

The Visuino: https://www.visuino.eu needs to be installed. Start Visuino as shown in the first picture Click on the “Tools” button on the Arduino component (Picture 1) in Visuino When the dialog appears, select “TTGO T-Display ESP32” as shown on Picture 2

Step 3: In Visuino Set Bluetooth LE

• Select TTGO T-Display ESP32 board and in the properties window expand “Modules>Bluetooth LE>Operations
• Click on the Operations 3 Dots
• In the Operations window drag “Search Bluetooth Devices” to the left side and in the properties window set “Active” to true
• Close the Operations window

Step 4: In Visuino Set Display

Select TTGO T-Display ESP32 board and in the properties window expand “Modules>Display>Orientation

• Set Orientation to:goRight

expand “Modules>Display>Text

• Set Size to 2

Step 5: In Visuino Add & Connect Components

• Add “Clock Generator” component
• Connect “ClockGenerator1” pin [Out] to “TTGO T-Display ESP32” > Search Devices pin [Scan]
• Connect “TTGO T-Display ESP32″ > Search Devices pin [Device Name] to “TTGO T-Display ESP32” > Display pin [In]

Step 6: Generate, Compile, and Upload the Code

In Visuino, at the bottom click on the “Build” Tab, make sure the correct port is selected, then click on the “Compile/Build and Upload” button.

Step 7: Play