ESP8266 Community Forum

- Tue Aug 18, 2015 6:47 pm #26417

Is it compile time problem or runtime ?
If you enable verbose in preferences, at the beginning of compile the IDE displays the paths of the libraries you've included.
Is the I2C comes from something like .arduino15/packages/esp8266/hardware/esp8266/1.6.5-947-g39819f0/libraries/Wire (this path will differ since you are on 1.6.6) ?
Did you provides PullUp resistors on I2C pins ?

Thanks for reply, after made some research I found out I was using a wrong memory address, I changed it and it worked!!. Thanks for your help

- Mon Oct 31, 2016 7:20 pm #57468 The 'Wire' does not name a type can be caused from putting your
"Wire.pins(sda, scl);" statement before your "Wire.begin();" statement

- Mon Oct 31, 2016 8:16 pm #57471 Wire.pins() is deprecated ...
Simply use pins numbers directly in Wire.begin(int sda, int scl);