PCF8574 IO expansion chip with I2C interface, 8-bit parallel port output. Based on the I2C interface I / O expansion modules, using two I / O can be extended to eight I / O (up to simultaneous use 8 PCF8574, expanded to 64 I / O).
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USB C Hub USB Hub 3.0 Type C docking station aluminum 4-in-1 USB expander, with 3 USB ports and 1 USB C port USB distributor
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Have you run out of I/O pins?. Onboard 3.3V level converter circuit, if you do not solder VCC-VDD pad, the PCF8575 level is 3.3V. 1 Pc x Expander Module. Open-drain interrupt output pin for input change interrupt.
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I2C Communication : Efficiently expands your I/O without using many GPIO pins.
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1 pc. NXP PCA9555 16-Channel I2C I/O Expander SMBus TSSOP-24
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The Microchip MCP23017 16-bit I/O Expander with I. For more information on the Microchip MCP23017 16-bit I/O Expander, see the datasheet. No Scotish Highland, Northern Ireland, Isle of Wight or other Isles.
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