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1. Unit-V-A
Off-Chip Peripheral Interfacing And Programming
Interfacing with 8051: LED, LED pattern
display, traffic light display, Switches and
Matrix ,Keyboard, LCD, ADC 0808 with Analog
Sensor, DAC and their applications

5. • Arduino is an open-source electronics prototyping
platform based on flexible, easy-to-use hardware
and software. It's intended for artists, designers,
hobbyists, and anyone interested in creating
interactive objects or environments. It is easy to
use even for beginners. Hugely popular, you will
find numerous tutorials and projects to help you
get started and build your favourite electronics
project.