I2C device manager (#2282)

* message on dev list change

* dc detect

* added sht3x sensor.

* separete environment data from light

* max17055 moved to i2c dev

* sht fix, goterror detection fix

* fix ext sensor app display for a lot of devices.

* added bh1750 driver

* autoscan on main view

* added devlist mutex

* better timing

* fix h2 sw8 on poweron by usb

firmware/common/i2cdev_ads1110.cpp

@@ -0,0 +1,125 @@
+/*
+ * Copyright (C) 2024 jLynx.
+ *
+ * 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_ads1110.hpp"
+#include "utility.hpp"
+#include <algorithm>
+#include <cstdint>
+
+namespace i2cdev {
+
+bool I2cDev_ADS1110::init(uint8_t addr_) {
+    if (addr_ != I2CDEV_ADS1110_ADDR_1) return false;
+    addr = addr_;
+    model = I2CDEVMDL_ADS1110;
+    query_interval = BATTERY_WIDGET_REFRESH_INTERVAL;
+
+    if (detect()) {
+        // Set the configuration register
+        write(0x8C);
+        return true;
+    }
+    return false;
+}
+
+bool I2cDev_ADS1110::detect() {
+    uint8_t data[3];
+    if (i2cbus.receive(addr, data, 3)) {
+        // Check if the received data is valid
+        uint8_t configRegister = data[2];
+        if ((configRegister & 0x0F) == 0x0C) {
+            // The configuration register value matches the expected value (0x8C)
+            return true;
+        }
+    }
+    return false;
+}
+
+void I2cDev_ADS1110::update() {
+    uint16_t voltage = readVoltage();
+    uint8_t batteryPercentage = battery::BatteryManagement::calc_percent_voltage(voltage);
+    // send local message
+    BatteryStateMessage msg{1, batteryPercentage, false, voltage};
+    EventDispatcher::send_message(msg);
+}
+
+bool I2cDev_ADS1110::write(const uint8_t value) {
+    return i2cbus.transmit(addr, &value, 1);
+}
+
+// returns the batt voltage in mV
+uint16_t I2cDev_ADS1110::readVoltage() {
+    // Read the conversion result
+    uint8_t data[3];
+    if (!i2cbus.receive(addr, data, 3)) {
+        return 0.0f;  // Return 0 if the read fails
+    }
+    uint16_t raw = (static_cast<uint16_t>(data[0]) << 8) | data[1];
+    // Calculate the voltage based on the output code
+    int16_t voltage = 0;
+    float minCode = 0;
+    float pga = 0.0f;
+
+    uint8_t pga_rate = data[2] & 0x03;
+    switch (pga_rate) {
+        case 0:
+            pga = 1.0f;
+            break;
+        case 1:
+            pga = 2.0f;
+            break;
+        case 2:
+            pga = 4.0f;
+            break;
+        case 3:
+            pga = 8.0f;
+            break;
+        default:
+            // Handle invalid data rate
+            break;
+    }
+
+    uint8_t data_rate = (data[2] >> 2) & 0x03;
+    switch (data_rate) {
+        case 0:  // 240
+            minCode = -2048.0;
+            break;
+        case 1:  // 60
+            minCode = -8192.0;
+            break;
+        case 2:  // 30
+            minCode = -16384.0;
+            break;
+        case 3:  // 15
+            minCode = -32768.0;
+            break;
+        default:
+            // Handle invalid data rate
+            break;
+    }
+
+    // 2.048 is the reference voltage & 2.0 is to make up for the voltage divider
+    voltage = (int16_t)(raw / (-1.0 * minCode) * pga * 2.048 * 2.0 * 1000.0);  // v to mV
+    if (voltage < 0) voltage *= -1;                                            // should not happen in this build, but prevent it
+    return (uint16_t)voltage;
+}
+
+} /* namespace i2cdev */