Interfacing of 8051 with Bluetooth
Anita Gehlot, Rajesh Singh, Praveen Kumar Malik, Lovi Raj Gupta, Bhupendra Singh · 2020
This chapter discusses the interfacing of 8051 with Bluetooth. It discusses the interfacing of devices with 8051 and NuttyFi with the help of circuit diagram and programming. Bluetooth is a wireless technology standard used for exchanging data between fixed and mobile devices over short distances. It works on UHF radio waves in the industrial, scientific, and medical radio bands, from 2.402 GHz to 2.480 GHz. HC-05 is a Bluetooth device used for wireless communication. It works on serial communication (UART). It is a 6-pin module. It can be used in two modes: data mode and command mode. The module works on 5V or 3.3V. The system comprises of +12V power supply, +12V to +5V converter, 8051 microcontroller, 16x2 LCD, Bluetooth with breakout board, and Buzzer.