Automatic Medicine Vendor | Arduino Nano IoT Setup - Blog #3

26 May 2021

First after getting the board , I have set up the Arduino IDE by installing Board

From Tools menu -> Boards -> Boards Manager

Then Tried out example blink code and they worked correctly

For Controlling the Servos , they needed +5V Supply but Arduino Nano IoT only has 3.3V Supply, So I used external Power Supply

Using FireBase Database:

I have used the https://github.com/mobizt/Firebase-Arduino-WiFiNINA Library for Connecting Arduino Nano IoT to Firebase Database.

Then tried the sample code to read relatime data from Firebase which was added using Moble App . This will keep reading the Data at an interval from Database .

THe Data format was -> Medicine Name, Box Name, Time,Date.

Testing: Testing Video of Servo At all Position

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Code

The Code Reads the Database by connecting to Wifi Network first so we need to define the Wifi Auth and Firebase Auth

#define FIREBASE_HOST "YOUR_FIREBASE_PROJECT.firebaseio.com"
#define FIREBASE_AUTH "YOUR_FIREBASE_DATABASE_SECRET"
#define WIFI_SSID "YOUR_WIFI_AP"
#define WIFI_PASSWORD "YOUR_WIFI_PASSWORD"

Then Connect to Wifi and Database

status = WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
Firebase.begin(FIREBASE_HOST, FIREBASE_AUTH, WIFI_SSID, WIFI_PASSWORD);
Firebase.reconnectWiFi(true);

Then Read The Data

for (uint8_t i = 0; i < 5; i++)
  {
    if (Firebase.getInt(firebaseData, path + "/Medi/Medicine" + (i + 1)))
    {
      if (firebaseData.dataType() == "int")
        Serial.println(firebaseData.intData());
      else if (firebaseData.dataType() == "float")
        Serial.println(firebaseData.floatData());
      else if (firebaseData.dataType() == "string")
        Serial.println(firebaseData.stringData());
    }
 }

We get the Data in format : String: Medicine Name , String : Box Name , String : Date /Time , Int : Doses.