Good morning, Many thanks for your video. Everything works fine for me but I have a question, how to change the PCF8574 inputs. I would like to configure my Atmega328 but cannot do it without modifying the PIN outputs (pin A5 and A4)... Thank you and have a nice day :)
Using this module, can the servo library work with a servo connected to the module directly or i need to write my own pwm code that talks to the the module?
Hello sir, I've found a problem when I connect the pcf8574 extender module(blue color one) to my nodeMCU. The LED connected to the pcf8574 extender module can only generate a faint light. Does it mean my pcf8574 extender module is broken or something goes wrong? What is the solution? Hopefully, I can receive a reply. TQVM
@@limjunyi2211 that's normal since this module is designed as sinking. So you should put pcf -> resistor -> Vcc. And the LED will light up when you put LOW output.
2:25 the fact that it took multiple attempts is so real
Good morning,
Many thanks for your video. Everything works fine for me but I have a question, how to change the PCF8574 inputs. I would like to configure my Atmega328 but cannot do it without modifying the PIN outputs (pin A5 and A4)...
Thank you and have a nice day :)
Using this module, can the servo library work with a servo connected to the module directly or i need to write my own pwm code that talks to the the module?
Hello sir, is it possible to connect a stepper to the P0 and P1 pin with a driver to control it? Thank you good video
thank you for the video, it really helped me out!
Thank you
Very Helpful, thank you
how to write or read individual ports or pins of 8574 module using wire library only? do not use pcf8574 library.
Hello sir, I've found a problem when I connect the pcf8574 extender module(blue color one) to my nodeMCU. The LED connected to the pcf8574 extender module can only generate a faint light. Does it mean my pcf8574 extender module is broken or something goes wrong? What is the solution? Hopefully, I can receive a reply. TQVM
What did you try to drive?
@@miliohm I try to ON my led on the pcf8574 extender module
@@miliohm I follow all the step in the video, however, my led can only light up gloomy.
@@limjunyi2211 that's normal since this module is designed as sinking. So you should put pcf -> resistor -> Vcc. And the LED will light up when you put LOW output.
@@miliohm Sry sir, i don't get it. Could u please explain more?
my esp8266 dosent have 5V pin. what can i do
Connect to (VIN) PIN of esp8266
can two lora nodes communicate with each other if there address is same !?
What address?
علیز بنگی 🤣