init

components/kqm6600ta/kqm6600ta.cpp

@@ -0,0 +1,70 @@
+#include "kqm6600ta.h"
+#include "esphome/core/log.h"
+
+#include <cinttypes>
+
+namespace esphome
+{
+    namespace kqm6600ta
+    {
+
+        static const char *const TAG = "kqm6600ta";
+        static const uint8_t KQM6600TA_RESPONSE_LENGTH = 8;
+
+        uint8_t kqm6600ta_checksum(const uint8_t *command)
+        {
+            uint8_t sum = 0;
+            for (uint8_t i = 0; i < KQM6600TA_REQUEST_LENGTH; i++)
+            {
+                sum += command[i];
+            }
+            return sum;
+        }
+
+        void KQM6600TAComponent::update()
+        {
+            uint32_t now_ms = millis();
+
+            if (response[0] != 0x5F)
+            {
+                ESP_LOGW(TAG, "Invalid preamble from KQM6600TA!");
+                this->status_set_warning();
+                return;
+            }
+
+            uint8_t checksum = kqm6600ta_checksum(response);
+            if (response[7] != checksum)
+            {
+                ESP_LOGW(TAG, "KQM6600TA Checksum doesn't match: 0x%02X!=0x%02X", response[8], checksum);
+                this->status_set_warning();
+                return;
+            }
+
+            this->status_clear_warning();
+            const float voc = ((uint16_t(response[1]) << 8) | response[2]) * 0.1f;
+            const uint32_t formaldehyde = ((uint16_t(response[3]) << 8) | response[4]) * 10;
+            const uint16_t co2 = ((uint16_t(response[5]) << 8) | response[6]) * 10;
+            
+
+            ESP_LOGD(TAG, "KQM6600TA Received VOC=%f Formaldehyde=%dmg/m³ CO₂=%dppm", voc, formaldehyde, co2);
+            if (this->voc_sensor_ != nullptr)
+                this->voc_sensor_->publish_state(voc);
+            if (this->formaldehyde_sensor_ != nullptr)
+                this->formaldehyde_sensor_->publish_state(formaldehyde);
+            if (this->co2_sensor_ != nullptr)
+                this->co2_sensor_->publish_state(co2);
+        }
+
+        float KQM6600TAComponent::get_setup_priority() const { return setup_priority::DATA; }
+
+        void MHZ19Component::dump_config()
+        {
+            ESP_LOGCONFIG(TAG, "KQM6600TA:");
+            LOG_SENSOR("  ", "CO2", this->co2_sensor_);
+            LOG_SENSOR("  ", "VOC", this->voc_sensor_);
+            LOG_SENSOR("  ", "Formaldehyde", this->formaldehyde_sensor_);
+            this->check_uart_settings(9600);
+        }
+
+    } // namespace kqm6600ta
+} // namespace esphome