SD card .csv file numbered

Author: iRGBit

Papawai/Papawai_Transmissions/Papawai-Transmissions.rec.SD/Papawai-Transmissions.rec.SD/Papawai-Transmissions.rec.SD.ino

@@ -0,0 +1,192 @@
+//             _ _     _ _   _     _                   _
+//            (_) |   | | | | |   (_)                 (_)
+//   __      ___| | __| | |_| |__  _ _ __   __ _ ___   _  ___
+//   \ \ /\ / / | |/ _` | __| '_ \| | '_ \ / _` / __| | |/ _ \ 
+//    \ V  V /| | | (_| | |_| | | | | | | | (_| \__ \_| | (_) |
+//     \_/\_/ |_|_|\__,_|\__|_| |_|_|_| |_|\__, |___(_)_|\___/
+//                                        __ /  |
+//                                       | ___ /
+
+//   Papawai Transmissions
+//   MQTT Client for Wemos D1
+//   wildthings.io - Birgit Bachler, Aotearoa/New Zealand, 2017
+//
+//   Wemos D1 with SD card recording to CSV file
+//
+//   credits to
+//   ESP8266learning http://www.esp8266learning.com/logging-dht11-data-sd-card.php
+//   https://www.baldengineer.com/mqtt-tutorial.html
+//   with adaptions as in the comments by Dag Rende & William Brinkman
+
+
+
+#include <ESP8266WiFi.h>
+#include <PubSubClient.h>
+
+#include <SPI.h>
+#include <SD.h>
+
+const int chipSelect = D8;
+
+#define FILE_BASE_NAME "Log"
+const uint8_t CS_PIN = 10;
+File dataFile;
+const uint8_t BASE_NAME_SIZE = sizeof(FILE_BASE_NAME) - 1;
+char fileName[] = FILE_BASE_NAME "00.csv";
+
+#define node_name "ESP8266/networkSD"
+#define all "#"
+
+#define hTopic "moturoa/ahumid" // DHT11 humidity
+#define tTopic "moturoa/atemp" // DHT11 temp
+#define humidTopic "moturoa/humid" // soil
+#define rainTopic "moturoa/rain" // rain
+#define ecTopic "moturoa/ec" // conduct
+#define spikeTopic "moturoa/spike" // spike in water
+#define wTopic "moturoa/watertemp"
+
+
+// Connect to the WiFi
+const char* ssid = "Moturoa_Transmissions";
+const char* password = "Tangaroa";
+const char* mqtt_server = "192.168.42.1";
+
+WiFiClient espClient;
+PubSubClient client(espClient);
+
+void callback(char* topic, byte* payload, unsigned int length) {
+  Serial.print("Message arrived [");
+  Serial.print(topic);
+  Serial.print("] ");
+  dataFile = SD.open(fileName, FILE_WRITE);
+  if (dataFile) {
+    Serial.print("opened ");
+    Serial.print(fileName);
+    Serial.println("...");
+    Serial.print(topic);
+    Serial.print(" ");
+    String myMessage = "";
+    for (int i = 0; i < length; i++) {
+      char receivedChar = (char)payload[i];
+      myMessage += receivedChar;
+    }
+    Serial.println(myMessage);
+    dataFile.print(topic);
+    dataFile.print(",");
+    dataFile.print(myMessage);
+    dataFile.print(",");
+    dataFile.println(millis());
+    // close the file:
+    dataFile.close();
+    // print to the serial port too:
+    Serial.print("closed ");
+    Serial.print(fileName);
+    Serial.println("...");
+  }
+  // if the file isn't open, pop up an error:
+  else {
+    Serial.println("error opening MoturoaTransmissions.csv");
+  }
+
+  // if (strcmp(topic, spikeTopic) == 0)
+}
+
+
+void reconnect() {
+  // Loop until we're reconnected
+  while (!client.connected()) {
+    Serial.print("Attempting MQTT connection...");
+    // Attempt to connect
+
+    if (client.connect(node_name)) {
+      Serial.println("connected");
+      // ... and subscribe to topic
+      client.subscribe(all);
+
+    } else {
+      Serial.print("failed, rc=");
+      Serial.print(client.state());
+      Serial.println(" try again in 5 seconds");
+
+    }
+  }
+}
+
+void setup()
+{
+  Serial.begin(9600);
+  if (!SD.begin(CS_PIN)) {
+    Serial.println(F("begin failed"));
+    return;
+  }
+  while (SD.exists(fileName)) {
+    if (fileName[BASE_NAME_SIZE + 1] != '9') {
+      fileName[BASE_NAME_SIZE + 1]++;
+    } else if (fileName[BASE_NAME_SIZE] != '9') {
+      fileName[BASE_NAME_SIZE + 1] = '0';
+      fileName[BASE_NAME_SIZE]++;
+    } else {
+      Serial.println(F("Can't create file name"));
+      return;
+    }
+  }
+  dataFile = SD.open(fileName, FILE_WRITE);
+  if (!dataFile) {
+    Serial.println(F("open failed"));
+    return;
+  }
+  Serial.print(F("opened: "));
+  Serial.println(fileName);
+  dataFile.close();
+
+  setup_wifi();             // added this line of code !!!!!!!
+
+  client.setServer(mqtt_server, 1883);
+  client.setCallback(callback);
+
+  Serial.print("Initializing SD card...");
+  if (!SD.begin(chipSelect)) {
+    Serial.println("Card failed, or not present");
+    // don't do anything more:
+    return;
+  }
+  Serial.println("card initialized.");
+  delay(2000);
+}
+
+void loop()
+{
+  if (WiFi.status() != WL_CONNECTED) {
+    setup_wifi();
+
+  }
+  if (!client.connected()) {
+    reconnect();
+  }
+
+  client.loop();
+}
+
+void setup_wifi() {
+  // added this function - without it the mqtt part will not connect
+  delay(10);
+  // We start by connecting to a WiFi network
+  Serial.println();
+  Serial.print("Connecting to ");
+  Serial.println(ssid);
+
+  WiFi.begin(ssid, password);
+
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(500);
+    Serial.print(".");
+
+
+  }
+
+  Serial.println("");
+  Serial.println("WiFi connected");
+
+  Serial.println("IP address: ");
+  Serial.println(WiFi.localIP());
+}