ESP8266 Community Forum

- Mon Mar 21, 2016 2:47 pm #43730 I have a few older ESP8266 some 12 some 12E

Wasn't there a printing error that mislabeled some pins ? If you remember what pins were they ? I am sure it is on the 12 version

- Mon Mar 21, 2016 5:19 pm #43741 Yes ! it is well known since more than a year.
GPIO4/GPIO5 are swapped in older models, the newest one are labelled properly.