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Ike T. Sanglay Jr.

Ike T. Sanglay Jr.

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All posts in May 2023

Using 74HC165 for Microcontroller Input pin Expansion

Using 74HC165 for Microcontroller Input pin Expansion

Posted on May 9, 2023May 9, 2023Author adminPosted in Electronics and Programming

The 74HC165 is an 8-bit parallel-load shift register. We can have this as an option for reading many switches kinda like for mechanical keyboard builds. You can chain many 74HC165. I just used the native SPI of the XIAO nRF52840 (Sense) to clock-in the read data. The 74HC165 is not a native SPI device but…

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