PCF8574T I/O Expander

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yumi
Posts: 12
Joined: Sun Nov 20, 2016 8:35 pm

PCF8574T I/O Expander

Post by yumi » Sun Dec 12, 2021 8:42 pm

The PCF8574T IO Expansion Board is an I2C-bus remote 8-bit I/O expander. The I2C-bus can be connected to up to 8 PCF8574T IO Expansion Boards, providing up to 64 I/O ports.

The PCF8574T IO Expansion Board includes the ability to connect multiple modules to the I2C bus at the same time by connecting the pinheader and connector.

Onboard is a small potentiometer for adjusting the backlight of the LCD1602 or LCD2004, as well as a jumper cap for controlling the LED light switch.

https://www.apogeeweb.net/circuitry/pcf ... inout.html

soropo696
Posts: 1
Joined: Fri Dec 24, 2021 2:31 am

Re: PCF8574T I/O Expander

Post by soropo696 » Sat Jan 08, 2022 2:04 pm

The PCF8574T IO Expansion Board includes the ability to connect multiple modules to the I2C bus at the same time by connecting the pinheader and connector.

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