This is legitimately cool. One of my old coaching clients was hella into this stuff, and taught me quite a bit about electronics. He'd modded a few electronics/whitegoods in his home (his dishwasher to give it more options/settings, etc). Really really cool. -Andy
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?
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
This is legitimately cool. One of my old coaching clients was hella into this stuff, and taught me quite a bit about electronics. He'd modded a few electronics/whitegoods in his home (his dishwasher to give it more options/settings, etc). Really really cool.
-Andy
Great work, excellent tutorial and review! 👍😀
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?
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
The sx1509 is also I2C and has some very powerful features, but with the downside of using a QFN footprint.
Seems expensive compared to some mcu's ...
Are you Australian?
Sure am!