• Adafruit HTU21D-F Temperature & Humidity Sensor Breakout Board
    PRODUCT ID: 1899

    working on esp8266-01
    sda - D0 scl - D2 or
    sda - D2 scl -D0
    works without problems.

    By mistake, I run esp8266-01 with 5 volts for a week before I discovered that it only should have 3V3 volts.

    I have made clock streching on it with a copy from @TVE.


Avatar for Frida @Frida started