PCF8574 GPIO Extender | Arduino (No Libraries)

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In this video you will acquire knowledge on interfacing PCF8574 Port Extender IC using I2C communication with the Arduino UNO ,This is a course on programming in Arduino IDE for beginners.
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Опубликовано:

23 май 2021

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Комментарии : 12

@rickyaryadi8422 2 месяца назад

Can i use input? I haven't found it, please help

@Arn-kg5tf Год назад

There are not résistance on the wiring diagram. Using 330 ohm is too huge for 5v , need 220 Or 150 on each led for current limitation. Therefore IS a great job buddy I m looking for library and had some trouble with . Finally i get adafruit one from Arduino ide.

@kavtech_midi 2 года назад

is there any library to make it simple?

@SMtrainingacademy 2 года назад

Purpose of this tutorial is to learn the basics and also you can create your own library from scratch by creating functions from this. 😊 also there are many libraries available online you can find one easily

@kavtech_midi 2 года назад

@@SMtrainingacademy thx for the respons👍

@mikelee1906 Год назад

What?

@erbilshops3029 2 года назад

how is that worked with you?? this is should be common Anode not cathode

@SMtrainingacademy 2 года назад

Can you please elaborate your question which part are you mentioning..?

@erbilshops3029 2 года назад

@@SMtrainingacademy The 8 Led should get the ground from the PCF8574 as its sinking current IC i dont know how worked with you > the 8Led should be connected to 5V common and get the ground from the 8 output individual >> i tried your way many times but failed to work unless i change the anode and cathode >>

@SMtrainingacademy 2 года назад

@@erbilshops3029 ya I just now got it thanks for the information it is just a open drain output line so it must work with just a pull ups to port line provided I think so, maybe I got the output since it’s just a simulation. Are you trying it in hardware..?

@erbilshops3029 2 года назад

@@SMtrainingacademy Yes i am trying in Protues and i got mad how it worked with you .. do you know other way that i can get it with common cathod Rgb led ? or any suggestion for similar IC without Pull up..

@SMtrainingacademy 2 года назад

@@erbilshops3029 actually I have used the IC for driving 16x2 lcd in 4bit mode it worked fine in hardware where I just drive the lcd through gpio of pcf8574 ic