Update README.md

Author: eeyribas

README.md

@@ -1,7 +1,7 @@
 # RaspberryPi-Arduino-I2C-Communication
-Applications involving SPI communication between Raspberry Pi and Arduino are available. Data transfers occur using SPI communication between Raspberry Pi and Arduino.
+Applications involving I2C communication between Raspberry Pi and Arduino are available. Data transfers occur using I2C communication between Raspberry Pi and Arduino.
 
-Raspberry Pi WiringPi Library: To enable SPI communication on Raspberry Pi, the WiringPi library is used. To install the WiringPi library on Raspberry Pi:
+Raspberry Pi WiringPi Library: To enable I2C communication on Raspberry Pi, the WiringPi library is used. To install the WiringPi library on Raspberry Pi:
 
 Check if the system is up to date.
 
@@ -29,7 +29,7 @@ Compile and install the source code:
 
 - sudo ./build
 
-After installing the WiringPi library on Raspberry Pi, the SPI option should be enabled from the Raspberry Pi interface.
+After installing the WiringPi library on Raspberry Pi, the I2C option should be enabled from the Raspberry Pi interface.
 
 Arduino Used: Arduino Uno, Arduino Mega
 
@@ -39,4 +39,4 @@ Raspberry Pi Used: RPI3, RPI4
 
 Raspberry Pi IDE Version: QT IDE
 
-Arduino - Raspberry Pi Connection Diagram: Connections are made through standard SPI pins.
+Arduino - Raspberry Pi Connection Diagram: Connections are made through standard I2C pins.