Cleaning .ino

2_Firmware/1_I2C_Scanning/1_I2C_Scanning.ino

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+/* 
+ * Created on: 16/11/2023
+ * Author: Andrea Sauviat
+ * E-mail: [email protected]
+ * 
+ * Description: Blinks LEDs on the Mini RAK-Tracker
+ * 
+ * GitHub : https://github.com/SauviaTron/Mini_RAK-Tracker
+ * 
+ */
+
+
+// > The libraries you need :
+#include <Wire.h> // For I2C
+
+
+// —————————————————————————————————————————————————————————————————————————————————————————————— //
+// GLOBAL VARIABLES //
+// —————————————————————————————————————————————————————————————————————————————————————————————— //
+
+byte I2C_Error ; // I2C error
+byte I2C_deviceAddress ; // Get I2C address of the component
+int I2C_howManyDevices ; // Counts the number of components detected
+
+
+// —————————————————————————————————————————————————————————————————————————————————————————————— //
+// SETUP() //
+// —————————————————————————————————————————————————————————————————————————————————————————————— //
+
+void setup() {
+
+ // > Configure the baud rate
+ Serial.begin( 115200 ) ; 
+ while ( !Serial ) {} ; // Wait for the serial to be available
+ delay(2500) ; // Add a custom delay for user to 'see' the setup function
+
+
+ // > Welcome Msg 
+ Serial.println("\nWelcome to the I2C Scanner program !") ;
+
+
+ // > Configure the I2C
+ Wire.begin();
+
+}
+
+
+// —————————————————————————————————————————————————————————————————————————————————————————————— //
+// LOOP() //
+// —————————————————————————————————————————————————————————————————————————————————————————————— //
+
+void loop() {
+
+ // > New loop
+ Serial.println("\n> I2C - Scanning...");
+
+ I2C_howManyDevices = 0 ; // Initializes the counter
+
+ // Check all the I2C address to see if there is a device wired on it
+ for(I2C_deviceAddress = 1; I2C_deviceAddress < 127; I2C_deviceAddress++ ) {
+
+ Wire.beginTransmission( I2C_deviceAddress ) ; // Try to communicate with the component
+ I2C_Error = Wire.endTransmission() ; // Get error
+
+
+ if( I2C_Error == 0 ) { // If no error detected
+ Serial.print(" Device found at address 0x") ; // Display a msg
+ if( I2C_deviceAddress<16 ){ Serial.print("0"); } // Display address
+ Serial.println(I2C_deviceAddress,HEX) ; // ...
+ I2C_howManyDevices = I2C_howManyDevices + 1 ; // +1 to the number of devices detected
+ }
+ else if( I2C_Error==4 ) { // If a weird device is detected
+ Serial.print(" Unknown error at address 0x"); // Display a msg
+ if( I2C_deviceAddress<16 ){ Serial.print("0"); } // Display address
+ Serial.println(I2C_deviceAddress,HEX) ; // ... 
+ }
+
+ }
+
+ if( I2C_deviceAddress == 0 ){ Serial.println(" No I2C devices found"); }
+ else { Serial.println(" I2C Scanning done"); }
+
+ delay(5000); // wait 5 seconds for next scan
+
+}
+