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#define | SHT21_USER_REG_READ (0xE7) |
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#define | SHT21_USER_REG_WRITE (0xE6) |
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#define | SHT21_USER_REG_RESERVED_BITS (0x38) |
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#define | SHT21_TEMPERATURE_HM_CMD (0xE3) |
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#define | SHT21_HUMIDITY_HM_CMD (0xE5) |
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#define | SHT21_TEMPERATURE_NHM_CMD (0xF3) |
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#define | SHT21_HUMIDITY_NHM_CMD (0xF5) |
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#define | SHT21_RESET_CMD (0xFE) |
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#define | SHT21_STATUS_MASK (0xFC) |
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#define | SHT21_RESOLUTION_12b_14b ((0 << 7) | (0 << 0)) |
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#define | SHT21_RESOLUTION_8b_12b ((0 << 7) | (1 << 0)) |
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#define | SHT21_RESOLUTION_10b_13b ((1 << 7) | (0 << 0)) |
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#define | SHT21_RESOLUTION_11b_11b ((1 << 7) | (1 << 0)) |
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#define | SHT21_BATTERY_ABOVE_2V25 (0 << 6) |
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#define | SHT21_BATTERY_BELOW_2V25 (1 << 6) |
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#define | SHT21_ONCHIP_HEATER_ENABLE (1 << 2) |
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#define | SHT21_ONCHIP_HEATER_DISABLE (0 << 2) |
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#define | SHT21_OTP_RELOAD_ENABLE (0 << 1) |
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#define | SHT21_OTP_RELOAD_DISABLE (1 << 1) |
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