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M5Stack Paper S3 E-Paper Display Touchable Low Power Consumption 4.7-inch E-ink Display Development Kit ESP32S3
$87.42
LILYGO Grey Shell Version T-Display-S3 1.9-inch LCD Display Development Board WiFi Bluetooth5.0 Wireless Module for Arduino
$32.47
Sketchboard Mechanical Arm Plotter Robot Arm Students Programming Learning DIY Kit for Arduino
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PCF8574 IO Expansion Board I2C-bus to 8-bit Parallel
The PCF8574 IO Expansion Board is used as remote 8-bit I/O expander for I2C-bus. Up to 8 PCF8574 IO Expansion Board can be connected to the I2C-bus, providing up to 64 I/O ports.
The PCF8574 IO Expansion Board features I2C pinheader on one side, and I2C connector on the opposite side. Hence, it's more flexible to connect the board to your development system. The board also supports I2C cascading, allowing the use of multi module connected to the I2C bus at the same time by connecting the pinheader and connector.
PCF8574, I2C interface, 8-bit parallel output
