diff options
| -rw-r--r-- | README.md | 7 |
1 files changed, 7 insertions, 0 deletions
@@ -28,4 +28,11 @@ For this we look at the AW9523 GPIO expander with 16 pins of io. Since the LCD is a 5v circuit requiring either 8 or 12 pins we look at the Microchip MCP23017 on the Adafruit GPIO Expander Bonnet. +# References +* [https://learn.adafruit.com/adafruit-aw9523-gpio-expander-and-led-driver](https://learn.adafruit.com/adafruit-aw9523-gpio-expander-and-led-driver) +* [AW9523 Datasheet](https://cdn-shop.adafruit.com/product-files/4886/AW9523+English+Datasheet.pdf) +* [https://learn.adafruit.com/gpio-expander-bonnet/overview](https://learn.adafruit.com/gpio-expander-bonnet/overview) +* [MCP23017 Datasheet](http://ww1.microchip.com/downloads/en/devicedoc/20001952c.pdf) + + |