SHT11 footprint, schematic symbol and 3D model by Sensirion

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SHT11 Details

The maximum cable length for the SHT11 is 10 meters (33 feet) due to the limitations of the 2-wire serial interface.
The SHT11 uses a 8-bit CRC (Cyclic Redundancy Check) for error detection. You can use the polynomial x^8 + x^5 + x^4 + x^0 to calculate the checksum.
The recommended clock frequency for the SHT11 is between 1 kHz and 100 kHz. However, the device can operate up to 400 kHz.
You need to use the conversion formulas provided in the datasheet, which involve multiplying the raw data by a scaling factor and adding an offset. You can also use the Sensirion's SHTxx Conversion Algorithm available on their website.
The typical power consumption of the SHT11 is 20 μA (active mode) and 1 μA (sleep mode) at 3.3 V supply voltage.

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