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Upfate Hardware I2C page

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Gauthier Provost 2020-04-13 14:20:40 +08:00
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docs/helios64/gpio.md
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Helios64 provides 16 GPIOs via a 20-Pin header (P5). Those GPIOs are provided via an 16-bit IO Expander [PCA9655E](http://www.onsemi.com/PowerSolutions/product.do?id=PCA9655E) connected to I2C bus 2.
![GPIO](/helios64/img/gpio/gpio.jpg)
![P5 Location](/helios64/img/gpio/gpio.jpg)
## Pinout