About Arduino library for SPI based MCP23S17 16 channel port expander arduino spi input-output Readme MIT license ...

This library gives easy control over the 16 pins of a TCA9555 device. The pins can be used for INPUT (default) and OUTPUT, and allow to set polarity. The pins can be set per single pin, or with a mask ...

Hackers claim a massive PayPal breach involving 15.8 million logins, although experts doubt authenticity, and the company insists it ties back to older incidents.