• I put a logic analyzer on the bus. After requesting humidity with htu.getHumidity(function(h){console.log(­h);}), here is what I got on the bus:

    0x80 + ACK
    0xE7 + ACK
    pause 0.8 ms
    0x81 + ACK
    0x02 + NAK
    pause 1.5 ms
    0x80 + ACK
    0xF5 + ACK
    pause 18 ms
    0x81 + ACK
    0x00 + ACK
    0x00 + ACK
    0x00 + NAK
    

    I confirm, the sensor sends zero values (last three 0x00)
    for the default 12-bit resolution of the humidity conversion it takes max 16 ms to finish. In my case I got 18ms, which is long enough to let the sensor complete its conversion.

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