My work is I try to create a function for customize the pin number in wire.h library.. is it possible to do that.

Welcome to the forum. There are many Arduino boards and compatible Arduino boards. Some board can set the I2C bus on other pins. If you have soldered something and have the wrong I2C pins, then there are options, such as a software I2C library. Can you give (a lot) more information ? If you are m…

[image] pgraina: My work is I try to create a function for customize the pin number in wire.h library.. is it possible to do that. If the actual Arduino you are using, and you did not tell us, does support re-direction of I2C pins, then the version of wire.h for that Arduino probably already…

I'm using ESP8266. In the reason why I need to change the default pin number is.. In my board already occupies the pin so.

On the 8266 you don't need any function for doing it The ESP2866 doesn’t actually have any hardware I2C pins. See discussion on the link: [image] ESP8266 Change i2c pins Programming Hello to all. Can I change esp8266 i2c pins by code, for example I want to use GPIO9 and …

yes yes, SDA and SCL Do you read the topic at the link above?

[image] pgraina: SDA and SCL pins These are the two pins that make up the I2C bus, that the wire.h library uses to communicate between Arduino and peripheral you want to use.

Wire.h TwoWire::TwoWire() { } // Public Methods ////////////////////////////////////////////////////////////// void TwoWire::begin(int sda, int scl) { default_sda_pin = sda; default_scl_pin = scl; twi_init(sda, scl); flush(); } void TwoWire::begin(int sda, int scl, uint8_t address) { def…

How to change the default pin number in wire.h library

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pgraina July 28, 2022, 8:20am 5

I'm using ESP8266

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How to change the default pin number in wire.h library

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