In order to get temperature or humidity data, SHT11 needs
- Connection reset sequence (consists of at least 9 pulse while data is high).
- Transmission start sequence (consists of lowering data while clock is high follow by lowering and highering clock then release data to high).
- Command byte (consists of 000 and 5bit command code)
- wait untill measurement compleated.
- get 2 bytes data
- get CRC byte if need.
Read rest of the project.
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