Your new topic does not fit any of the above??? Check first. Then post here. Thanks.

Moderator: igrr

User avatar
By maxte
#63786 Hi,

I'm struggling since days now with connecting my D1 to a ProMini via I2C.
I'm using the Wire lib and added that additional line
Wire.setClockStretchLimit(15000);

If I2C data freezes both devices are still outputting text via Serial , debugging Leds are still blinking,but analyzed with a LA there is absolute no activity on SCL and SDA. Only if I reset the ProMini or the ESP then it will work again

Are there are any ideas if there's a problem in the ESP8266WiFi.h core?

edit: when shorting-out A4 and A5 then it works again also..