From 0dbf1fc658763bf67757ee4b923e658ea0407f7a Mon Sep 17 00:00:00 2001
From: curtainman <aschwarz@xephyr.xyz>
Date: Fri, 7 Apr 2023 23:45:18 -0500
Subject: [PATCH] Add collection.ino
---
collection.ino | 151 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 151 insertions(+)
create mode 100644 collection.ino
diff --git a/collection.ino b/collection.ino
new file mode 100644
index 0000000..b2ccf51
--- /dev/null
+++ b/collection.ino
@@ -0,0 +1,151 @@
+#include <PubSubClient.h>
+#include <rpcWiFi.h>
+#include <TFT_eSPI.h>
+#include "sensirion_common.h"
+#include "sgp30.h"
+
+#define WIFISSID "REDACTED" // Put your WifiSSID here
+#define PASSWORD "REDACTED" // Put your wifi password here
+#define TOKEN "REDACTED" // Put your Ubidots' TOKEN
+#define VARIABLE_LABEL1 "voc" // Assign the variable label
+#define VARIABLE_LABEL2 "co2"
+#define DEVICE_LABEL "co2-monitor-device" // Assign the device label
+#define MQTT_CLIENT_NAME "REDACTED" // MQTT client Name
+
+const long interval = 100;
+unsigned long previousMillis = 0;
+
+char mqttBroker[] = "industrial.api.ubidots.com";
+
+WiFiClient wifiClient;
+PubSubClient client(wifiClient);
+
+TFT_eSPI tft = TFT_eSPI();
+
+static unsigned short int VOC = 0;
+static unsigned short int CO2 = 0;
+
+// Space to store values to send
+char str_voc[6];
+char str_co2[6];
+char payload[700];
+char topic[150];
+
+void callback(char* topic, byte* payload, unsigned int length){
+ Serial.print("Message arrived [");
+ Serial.print(topic);
+ Serial.print("] ");
+ for (int i=0;i<length;i++) {
+ Serial.print((char)payload[i]);
+ }
+}
+
+void reconnect() {
+ // Loop until we're reconnected
+ while (!client.connected()) {
+ Serial.println("Attempting MQTT connection...");
+
+ // Attempt to connect
+ if (client.connect(MQTT_CLIENT_NAME, TOKEN,"")) {
+ Serial.println("connected");
+ }
+ else {
+ Serial.print("failed, rc=");
+ Serial.print(client.state());
+ Serial.println(" try again in 2 seconds");
+ // Wait 2 seconds before retrying
+ delay(2000);
+ }
+ }
+}
+
+void read_sgp30()
+{
+ s16 err = 0;
+ sgp_measure_iaq_blocking_read(&VOC, &CO2);
+ if (err == STATUS_OK) {
+ Serial.print("tVOC Concentration:");
+ Serial.print(VOC);
+ Serial.println("ppb");
+
+ Serial.print("CO2eq Concentration:");
+ Serial.print(CO2);
+ Serial.println("ppm");
+ } else {
+ Serial.println("error reading IAQ values\n");
+ }
+}
+
+void send_data()
+{
+ dtostrf(VOC, 4, 0, str_voc);
+ dtostrf(CO2, 4, 0, str_co2);
+
+ if (!client.connected()) {
+ reconnect();
+ }
+
+ // Builds the topic
+ sprintf(topic, "%s", ""); // Cleans the topic content
+ sprintf(topic, "%s%s", "/v2.0/devices/", DEVICE_LABEL);
+
+ //Builds the payload
+ sprintf(payload, "%s", ""); // Cleans the payload
+ sprintf(payload, "{\"%s\":", VARIABLE_LABEL1); // Adds the variable label
+ sprintf(payload, "%s%s", payload, str_voc); // Adds the value
+ sprintf(payload, "%s}", payload); // Closes the dictionary brackets
+ client.publish(topic, payload);
+ Serial.println(payload);
+ delay(500);
+
+ sprintf(payload, "%s", ""); // Cleans the payload
+ sprintf(payload, "{\"%s\":", VARIABLE_LABEL2); // Adds the variable label
+ sprintf(payload, "%s%s", payload, str_co2); // Adds the value
+ sprintf(payload, "%s}", payload); // Closes the dictionary brackets
+ client.publish(topic, payload);
+ Serial.println(payload);
+ delay(500);
+
+ client.loop();
+}
+
+void setup() {
+ Serial.begin(115200);
+ while (sgp_probe() != STATUS_OK) {
+ Serial.println("SGP failed");
+ }
+ sgp_set_absolute_humidity(13000);
+ sgp_iaq_init();
+
+ tft.begin();
+ tft.setRotation(3);
+ tft.setTextSize(2);
+ tft.fillScreen(TFT_BLACK);
+
+// while(!Serial);
+
+ // Set WiFi to station mode and disconnect from an AP if it was previously connected
+ WiFi.mode(WIFI_STA);
+ WiFi.disconnect();
+
+ tft.drawString("Connecting to WiFi...",20,120);
+ WiFi.begin(WIFISSID, PASSWORD);
+
+ while (WiFi.status() != WL_CONNECTED) {
+ delay(500);
+ WiFi.begin(WIFISSID, PASSWORD);
+ }
+
+ tft.fillScreen(TFT_BLACK);
+ tft.drawString("Connected to the WiFi",20,120);
+
+ delay(1000);
+ client.setServer(mqttBroker, 1883);
+ client.setCallback(callback);
+}
+
+void loop() {
+ read_sgp30(); //Reading sgp30 sensor values
+ send_data(); //Sending data to Ubidots
+ delay(2000);
+}
\ No newline at end of file