Great video. These i2c expander are an awesome integrated circuit. For educational the pcf8574 is a good choice, but, if you are developing a product, search for more recent part numbers, I think the PCF of not recomendded for new designers. The TCA9548, for example, is a good choice. Nice video.
Thanks for the great feedback! I agree, the PCF8574 is better suited to education than production. I mainly chose this because it suits an upcoming project I'm working on in the background
How do we set the pin addresses of PCF8574 as binary? I am trying to send from our serial. When I write 00001111, I activate the first four p0,p1,p2,p3, but it seems like this is not how it is done. Each bit seems to control a pin. Am I misunderstanding?
