1 /* $NetBSD: sht4xreg.h,v 1.2 2022/05/24 06:28:01 andvar Exp $ */ 2 3 /* 4 * Copyright (c) 2021 Brad Spencer <brad@anduin.eldar.org> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #ifndef _DEV_I2C_SHT4XREG_H_ 20 #define _DEV_I2C_SHT4XREG_H_ 21 22 #define SHT4X_TYPICAL_ADDR 0x44 23 24 #define SHT4X_READ_SERIAL 0x89 25 #define SHT4X_SOFT_RESET 0x94 26 27 /* If you do not use the heater, you can take measurements at a couple 28 of different precisions */ 29 #define SHT4X_MEASURE_HIGH_PRECISION 0xFD 30 #define SHT4X_MEASURE_MEDIUM_PRECISION 0xF6 31 #define SHT4X_MEASURE_LOW_PRECISION 0xE0 32 33 /* The SHT4X chip only support the heater when reading with the 34 highest precision and then only when the measurement is happening. 35 You can have the heater on for 1 second or 1 tenth of a second. 36 After the measurement the heater will switch itself off */ 37 #define SHT4X_MEASURE_HIGH_PRECISION_HIGH_HEAT_1_S 0x39 38 #define SHT4X_MEASURE_HIGH_PRECISION_HIGH_HEAT_TENTH_S 0x32 39 #define SHT4X_MEASURE_HIGH_PRECISION_MEDIUM_HEAT_1_S 0x2F 40 #define SHT4X_MEASURE_HIGH_PRECISION_MEDIUM_HEAT_TENTH_S 0x24 41 #define SHT4X_MEASURE_HIGH_PRECISION_LOW_HEAT_1_S 0x1E 42 #define SHT4X_MEASURE_HIGH_PRECISION_LOW_HEAT_TENTH_S 0x15 43 44 #endif 45