So here we fetch some information from an Android mobile phone by using an android application and then send this information to OLED display by using Bluetooth Module and Arduino Pro Mini. Android smartphone already has inbuilt Bluetooth to send the data and at receiving end we have used Bluetooth module HC-06 with Arduino. Bluetooth module HC-05 can also be used in place of HC-06.
Make a Bluetooth controlled Sign board using an 8*8 Matrix display. A unique feature of this project is its android application which allows the user to control all the 64 LEDs individually from the mobile phone. This enables the user to create custom designs with ease and display it on the LED display.
Check out the complete project here: https://circuitdigest.com/microcontroller-projects/arduino-based-bluetooth-controlled-sign-board-circuit-on-pcb
Voice Typing on 16×2 LCD using Raspberry Pi and Android App
In this project we will provide the input voice using Google Voice Keyboard via a Android App(BlueTerm) and print the text on 16×2 LCD using Raspberry Pi. Here we will type the text on 16×2 LCD using wireless Bluetooth Medium and will use USB Bluetooth dongle with Raspberry Pi. So basically we need interface the 16×2 LCD with Raspberry Pi and setup the Bluetooth in Raspberry Pi to receive the data sent by Mobile phone.
Control Raspberry PI GPIO using Android
Raspberry Pi 3 has inbuilt Wi-Fi and Bluetooth, and Bluetooth is a very popular wireless communication Protocol. So today we are going to Control Raspberry Pi GPIO Pin through an Android app using Bluetooth.