33.Home Automation - 07

In this post I'll show you about the shift registers.As the shift register I'm using here 74HC595 IC.

Basically shift registers are use to extend the amount of I/O channels.As above image , from a shift register we can send data to 8 units by using only 3 input pins.In here,

• Q0 to Q7 pins are works as output pins
• Need to connect 5V supply to the VCC pin & MR pin
• Need to connect common power supply to the GND pin
• DS , ST_CP , SH_CP needs to connect with the Arduino module

In next post I'll show you how to assemble the main control unit by using all these discussed modules.