From a4b95097bab9116b3f04da1bc9809051ad05a7a5 Mon Sep 17 00:00:00 2001
From: Joachim Hummel <joachim.hummel@dataport.de>
Date: Thu, 8 Feb 2024 18:46:35 +0000
Subject: [PATCH] Added DSP310 Sensor with MQTT and Wifi

---
 mqtt-wifi-dsp310-sensor/ardunio_secrets.h |   3 +
 mqtt-wifi-dsp310-sensor/dsp310.ino        | 114 ++++++++++++++++++++++
 2 files changed, 117 insertions(+)
 create mode 100644 mqtt-wifi-dsp310-sensor/ardunio_secrets.h
 create mode 100644 mqtt-wifi-dsp310-sensor/dsp310.ino

diff --git a/mqtt-wifi-dsp310-sensor/ardunio_secrets.h b/mqtt-wifi-dsp310-sensor/ardunio_secrets.h
new file mode 100644
index 0000000..e4f639a
--- /dev/null
+++ b/mqtt-wifi-dsp310-sensor/ardunio_secrets.h
@@ -0,0 +1,3 @@
+//arduino_secrets.h header file
+#define SECRET_SSID "xxxx"
+#define SECRET_PASS "xxxx"
diff --git a/mqtt-wifi-dsp310-sensor/dsp310.ino b/mqtt-wifi-dsp310-sensor/dsp310.ino
new file mode 100644
index 0000000..0c4ff57
--- /dev/null
+++ b/mqtt-wifi-dsp310-sensor/dsp310.ino
@@ -0,0 +1,114 @@
+#include <ArduinoJson.h>
+#include <WiFiS3.h>
+#include <PubSubClient.h>
+#include <Adafruit_DPS310.h>
+#include "arduino_secrets.h"
+
+Adafruit_DPS310 dps;
+Adafruit_Sensor *dps_temp = dps.getTemperatureSensor();
+Adafruit_Sensor *dps_pressure = dps.getPressureSensor();
+
+// Please enter your sensitive data in the Secret tab/arduino_secrets.h
+char ssid[] = SECRET_SSID; // Your network SSID (name)
+char pass[] = SECRET_PASS; // Your network password (use for WPA, or use as key for WEP)
+const char* mqtt_server = "192.168.10.7"; // IP of your MQTT Broker
+
+WiFiClient espClient;
+PubSubClient client(espClient);
+unsigned long lastMsg = 0;
+#define MSG_BUFFER_SIZE (50)
+char msg[MSG_BUFFER_SIZE];
+int value = 0;
+
+void setup_wifi() {
+  delay(100);
+  Serial.println();
+  Serial.print("Connecting to ");
+  Serial.println(ssid);
+
+  WiFi.begin(ssid, pass);
+
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(500);
+    Serial.print(".");
+  }
+
+  Serial.println("");
+  Serial.println("WiFi connected");
+  Serial.println("IP address: ");
+  Serial.println(WiFi.localIP());
+}
+
+void callback(char* topic, byte* payload, unsigned int length) {
+  // Handle incoming MQTT messages if needed
+}
+
+void reconnect() {
+  while (!client.connected()) {
+    Serial.print("Attempting MQTT connection...");
+    String clientId = "ESP8266Client-";
+    clientId += String(random(0xffff), HEX);
+    if (client.connect(clientId.c_str())) {
+      Serial.println("connected");
+      client.publish("outTopic", "Sensor Online!");
+      client.subscribe("inTopic");
+    } else {
+      Serial.print("failed, rc=");
+      Serial.print(client.state());
+      Serial.println(" try again in 5 seconds");
+      delay(5000);
+    }
+  }
+}
+
+void setup() {
+  Serial.begin(115200);
+  while (!Serial) delay(10);
+
+  Serial.println("DPS310");
+  if (! dps.begin_I2C()) {
+    Serial.println("Failed to find DPS");
+    while (1) yield();
+  }
+  Serial.println("DPS OK!");
+
+  // Setup highest precision
+  dps.configurePressure(DPS310_64HZ, DPS310_64SAMPLES);
+  dps.configureTemperature(DPS310_64HZ, DPS310_64SAMPLES);
+
+  setup_wifi();
+  client.setServer(mqtt_server, 1883);
+  client.setCallback(callback);
+}
+
+void loop() {
+  if (!client.connected()) {
+    reconnect();
+  }
+  client.loop();
+  StaticJsonDocument<32> doc;
+  char output[55];
+
+  sensors_event_t temp_event, pressure_event;
+  
+  if (dps.temperatureAvailable() && dps.pressureAvailable()) {
+    dps_temp->getEvent(&temp_event);
+    dps_pressure->getEvent(&pressure_event);
+
+    Serial.print(F("Temperature = "));
+    Serial.print(temp_event.temperature);
+    Serial.println(" *C");
+    Serial.print(F("Pressure = "));
+    Serial.print(pressure_event.pressure);
+    Serial.println(" hPa"); 
+    Serial.println();
+
+    doc["temperature"] = temp_event.temperature;
+    doc["pressure"] = pressure_event.pressure;
+
+    serializeJson(doc, output);
+    client.publish("/home/sensors", output);
+
+    delay(5000);
+  }
+}