1. Connected SPI MOSI and MISO pins using one DuPont female to female connector and written code in SSH terminal

wget https://raw.githubusercontent.com/raspberrypi/linux/rpi-3.10.y/Documentation/spi/spidev_test.c

gcc -o spidev_test spidev_test.c

./spidev_test -D /dev/spidev0.0

2. Connected I2C devices using four Dupont female to female jump withe 3v3 and GND, SDA, and SCL, installed i2c-tools, and tested i2c addresses on SSH terminal using two commands:-

sudo apt-get install i2c-tools python-smbus

sudo i2cdetect -y 1