sht4x support,, typo fix (#2843)

firmware/common/i2cdev_bh1750.cpp

@@ -32,7 +32,7 @@ namespace i2cdev {
 bool I2cDev_BH1750::init(uint8_t addr_) {
     if (addr_ != I2CDEV_BH1750_ADDR_1) return false;
     addr = addr_;
-    model = I2CDECMDL_BH1750;
+    model = I2CDEVMDL_BH1750;
     query_interval = 3;
 
     // power up

firmware/common/i2cdev_sht4x.cpp

@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2024 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.
+ */
+
+#include "i2cdev_sht4x.hpp"
+
+namespace i2cdev {
+
+bool I2cDev_SHT4x::init(uint8_t addr_) {
+    if (addr_ != I2CDEV_SHT4X_ADDR_1 && addr_ != I2CDEV_SHT4X_ADDR_2) return false;
+    addr = addr_;                         // store the addr
+    model = I2C_DEVMDL::I2CDEVMDL_SHT4X;  // set the device model!!!!!!!!!!!!!!!!!!
+    query_interval = 10;                  // set update interval in sec
+    chThdSleepMilliseconds(50);
+    uint8_t tmp[1];  // command buffer
+    uint8_t rx[6];   // response buffer
+    tmp[0] = SHT4X_SERIAL_NUMBER_CMD_ID;
+    if (!i2c_write(nullptr, 0, tmp, 1)) return false;  // get serial number
+    chThdSleepMilliseconds(10);
+    if (!i2c_read(nullptr, 0, rx, 6)) return false;  // read serial number
+    return true;
+}
+
+void I2cDev_SHT4x::update() {
+    float temp = 0;
+    float hum = 0;
+    uint8_t cmd[1];
+    cmd[0] = SHT4X_MEASURE_MEDIUM_PRECISION_TICKS_CMD_ID;
+    uint8_t res[6];
+    if (!i2c_write(nullptr, 0, cmd, 1)) return;
+    chThdSleepMilliseconds(5);  // wait for measurement, 10 for high precision, 5 for medium, 2 for low
+    if (!i2c_read(nullptr, 0, res, 6)) return;
+    uint16_t temptick = (uint16_t)res[0] << 8 | (uint16_t)res[1];
+    uint16_t humtick = (uint16_t)res[3] << 8 | (uint16_t)res[4];
+
+    temp = -45 + (((float)temptick * 175.0) / 65535.0);
+    hum = -6 + 125.0 * (float)humtick / 65535.0;
+    if (hum < 0) hum = 0;
+    if (hum > 100) hum = 100;
+    EnvironmentDataMessage msg{temp, hum};  // create the system message
+    EventDispatcher::send_message(msg);     // and send it
+}
+
+}  // namespace i2cdev

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

firmware/common/i2cdevlist.hpp

@@ -34,14 +34,18 @@ enum I2C_DEVMDL {
     I2CDEVMDL_SHT3X,
     I2CDEVMDL_BMP280,
     I2CDEVMDL_BME280,
-    I2CDECMDL_BH1750,
+    I2CDEVMDL_BH1750,
     I2CDECMDL_PPMOD,
+    I2CDEVMDL_SHT4X,
 };
 
 #define I2CDEV_BMX280_ADDR_1 0x76
 #define I2CDEV_BMX280_ADDR_2 0x77
 #define I2CDEV_SHT3X_ADDR_1 0x44
 #define I2CDEV_SHT3X_ADDR_2 0x45
+// sadly sht4x uses the same addr as sht3x, but the init script can decide which is which
+#define I2CDEV_SHT4X_ADDR_1 0x44
+#define I2CDEV_SHT4X_ADDR_2 0x45
 
 #define I2CDEV_MAX17055_ADDR_1 0x36
 #define I2CDEV_ADS1110_ADDR_1 0x48

firmware/common/i2cdevmanager.cpp

@@ -32,6 +32,7 @@
 #include "i2cdev_ads1110.hpp"
 #include "i2cdev_bh1750.hpp"
 #include "i2cdev_ppmod.hpp"
+#include "i2cdev_sht4x.hpp"
 
 namespace i2cdev {
 
@@ -73,6 +74,11 @@ bool I2CDevManager::found(uint8_t addr) {
         if (!item.dev->init(addr)) item.dev = nullptr;
     }
 
+    if (!item.dev && (addr == I2CDEV_SHT4X_ADDR_1 || addr == I2CDEV_SHT4X_ADDR_2)) {
+        item.dev = std::make_unique<I2cDev_SHT4x>();
+        if (!item.dev->init(addr)) item.dev = nullptr;
+    }
+
     if (!item.dev && (addr == I2CDEV_MAX17055_ADDR_1)) {
         item.dev = std::make_unique<I2cDev_MAX17055>();
         if (!item.dev->init(addr)) item.dev = nullptr;