sht4x support,, typo fix (#2843)

firmware/common/i2cdev_sht4x.hpp

@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2025 HTotoo.
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __I2CDEV_SHT4X_H__
+#define __I2CDEV_SHT4X_H__
+
+#include "i2cdevmanager.hpp"
+
+namespace i2cdev {
+
+class I2cDev_SHT4x : public I2cDev {
+   public:
+    typedef enum {
+        SHT4X_MEASURE_HIGH_PRECISION_TICKS_CMD_ID = 0xfd,
+        SHT4X_MEASURE_MEDIUM_PRECISION_TICKS_CMD_ID = 0xf6,
+        SHT4X_MEASURE_LOWEST_PRECISION_TICKS_CMD_ID = 0xe0,
+        SHT4X_ACTIVATE_HIGHEST_HEATER_POWER_LONG_TICKS_CMD_ID = 0x39,
+        SHT4X_ACTIVATE_HIGHEST_HEATER_POWER_SHORT_TICKS_CMD_ID = 0x32,
+        SHT4X_ACTIVATE_MEDIUM_HEATER_POWER_LONG_TICKS_CMD_ID = 0x2f,
+        SHT4X_ACTIVATE_MEDIUM_HEATER_POWER_SHORT_TICKS_CMD_ID = 0x24,
+        SHT4X_ACTIVATE_LOWEST_HEATER_POWER_LONG_TICKS_CMD_ID = 0x1e,
+        SHT4X_ACTIVATE_LOWEST_HEATER_POWER_SHORT_TICKS_CMD_ID = 0x15,
+        SHT4X_SERIAL_NUMBER_CMD_ID = 0x89,
+        SHT4X_SOFT_RESET_CMD_ID = 0x94,
+    } SHT4xCmdId;
+    bool init(uint8_t addr_) override;  // sets the addr to our local variable, set the model, try to init the module, and only return true if it is really that module, and inited ok
+    void update() override;             // query the module for recent data, and send it to the system via the corresponding Message
+
+   private:
+    float read_temperature();
+    float read_humidity();
+};
+}  // namespace i2cdev
+
+#endif