/* $NetBSD: sht4xreg.h,v 1.2 2022/05/24 06:28:01 andvar Exp $ */ /* * Copyright (c) 2021 Brad Spencer * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #ifndef _DEV_I2C_SHT4XREG_H_ #define _DEV_I2C_SHT4XREG_H_ #define SHT4X_TYPICAL_ADDR 0x44 #define SHT4X_READ_SERIAL 0x89 #define SHT4X_SOFT_RESET 0x94 /* If you do not use the heater, you can take measurements at a couple of different precisions */ #define SHT4X_MEASURE_HIGH_PRECISION 0xFD #define SHT4X_MEASURE_MEDIUM_PRECISION 0xF6 #define SHT4X_MEASURE_LOW_PRECISION 0xE0 /* The SHT4X chip only support the heater when reading with the highest precision and then only when the measurement is happening. You can have the heater on for 1 second or 1 tenth of a second. After the measurement the heater will switch itself off */ #define SHT4X_MEASURE_HIGH_PRECISION_HIGH_HEAT_1_S 0x39 #define SHT4X_MEASURE_HIGH_PRECISION_HIGH_HEAT_TENTH_S 0x32 #define SHT4X_MEASURE_HIGH_PRECISION_MEDIUM_HEAT_1_S 0x2F #define SHT4X_MEASURE_HIGH_PRECISION_MEDIUM_HEAT_TENTH_S 0x24 #define SHT4X_MEASURE_HIGH_PRECISION_LOW_HEAT_1_S 0x1E #define SHT4X_MEASURE_HIGH_PRECISION_LOW_HEAT_TENTH_S 0x15 #endif