GPIO tinkering: 8 port expander

It's time to take a look at these PCF8574 GPIO expanded chips I pulled out of the mailbag a little while ago.

This isn't a deep dive, I'm just getting a bit familiar and trying them out with a few different microcontrollers.

Datasheet: https://www.ti.com/product/PCF8574

If you want to see another way of using this chip, Hari Wiguna made an interesting video a few years ago: https://www.youtube.com/watch?v=-VC_Y8qbeQM

My tip jar: https://www.patreon.com/pileofstuff

My other tip jar (channel membership) : https://www.youtube.com/channel/UCRiFz3gNKE3VysarZ7nmqIA/join

Buy me a coffee (or a beer): https://ko-fi.com/pileofstuff

If you are OK with me getting a commission on your purchases, feel free to use my affiliate links:
Ebay: https://ebay.to/33IF7PA Banggood: http://pileofstuff.ca/r/9ajsf

Some other links to products may be affiliate links

https://odysee.com/@pileofstuff

#ElectronicsCreators

This isn't the only way to do it. It's probably not the best way to do it. But it's how I did it. ... https://www.youtube.com/watch?v=IlelPmjR1OY