AustinSaintAubin · November 20, 2023 11:59 · Feb 18, 2018 · Feb 18, 2018 · Feb 18, 2018 · Feb 18, 2018
diff --git a/I2C_Scanner.ino b/I2C_Scanner.ino
@@ -103,7 +103,7 @@ void setup()
     display.setColor(WHITE);
     // - - - - - - - - - - - - - -
     display.setTextAlignment(TEXT_ALIGN_RIGHT);
-    display.drawString(DISPLAY_WIDTH, 0, "v7");
+    display.drawString(DISPLAY_WIDTH, 0, "v8");
     display.setTextAlignment(TEXT_ALIGN_LEFT);
     display.drawString(0, 0, "I2C Scanner w/ OLED");
     // - - - - - - - - - - - - - -

diff --git a/I2C_Scanner.ino b/I2C_Scanner.ino
@@ -11,6 +11,8 @@
     Scans for i2c Devices
   
   Version History:
+    Version 8
+      Added preprocessor statments for display 
     Version 6
       Added i2c Ports
       Added OLED output

diff --git a/I2C_Scanner.ino b/I2C_Scanner.ino
@@ -2,7 +2,7 @@
   Title: I2C Scanner
     - Repository: https://gist.github.com/AustinSaintAubin/dc8abb2d168f5f7c27d65bb4829ca870
   
-  Version: 7
+  Version: 8
   Date: 2018 / 02 / 17
   Author: Austin St. Aubin
   Email: [email protected]
@@ -41,13 +41,22 @@
   ============================================================================= */
 
 // [# Preprocessor Statements #]
-#define SCREEN true  // Enable Debugging Output
+#define OLED_DISPLAY true    // Enable OLED Display
+#define OLED_DISPLAY_SSD1306  // OLED Display Type: SSD1306(OLED_DISPLAY_SSD1306) / SH1106(OLED_DISPLAY_SH1106), comment this line out to disable oled
 
 // [ Included Library's ]
 #include <Wire.h>
-#if SCREEN
+
+// Initialize the OLED display using I2C
+#ifdef OLED_DISPLAY_SSD1306
   #include "SSD1306.h"   // alias for `#include "SSD1306Wire.h"`
-  //#include "SH1106.h"  // alias for `#include "SH1106Wire.h"`
+#elif defined OLED_DISPLAY_SH1106
+  #include "SH1106.h"  // alias for `#include "SH1106Wire.h"`
+#elif !OLED_DISPLAY
+  #warning "OLED Display Disabled"
+#else
+  #error "Undefined OLED Display Type"
+#endif
 /*For a connection via I2C using brzo_i2c (must be installed) include
     #include <brzo_i2c.h>  Only needed for Arduino 1.6.5 and earlier
     #include "SSD1306Brzo.h"
@@ -57,7 +66,6 @@
     #include "SSD1306Spi.h"
     #include "SH1106SPi.h" 
 */
-#endif
 
 // [ Global Pin Constants / Varables ]
 /*Initialize the OLED display using SPI
@@ -66,25 +74,26 @@
   D0 -> RES
   D2 -> DC
   D8 -> CS */
-const int pin_sda = D1; //SDA;  // i2c SDA Pin
-const int pin_scl = D2; //SCL;  // i2c SCL Pin
+const uint8_t I2C_SDA_PIN = D1; //SDA;  // i2c SDA Pin
+const uint8_t I2C_SCL_PIN = D2; //SCL;  // i2c SCL Pin
 
 // [ Global Classes ]
-#if SCREEN
-SSD1306  display(0x3c, pin_sda, pin_scl);
-//SH1106 display(0x3c, pin_sda, pin_scl);
+#ifdef OLED_DISPLAY_SSD1306
+  SSD1306  display(0x3c, I2C_SDA_PIN, I2C_SCL_PIN);
+#elif defined OLED_DISPLAY_SH1106
+  SH1106 display(0x3c, I2C_SDA_PIN, I2C_SCL_PIN);
 #endif
 
 void setup()
 {
-  Wire.begin(pin_sda, pin_scl);
+  Wire.begin(I2C_SDA_PIN, I2C_SCL_PIN);
 
   // Serial
   Serial.begin(115200);
   Serial.println("\nI2C Scanner");
 
   // OLED
-  #if SCREEN
+  #if OLED_DISPLAY
     display.init();
     display.flipScreenVertically();
     display.setContrast(255);
@@ -110,7 +119,7 @@ void loop()
 
   Serial.println("Scanning...");
 
-  #if SCREEN
+  #if OLED_DISPLAY
     display.setTextAlignment(TEXT_ALIGN_LEFT);
     display.drawString(0, 14, "Scanning...");
     display.display();
@@ -133,7 +142,7 @@ void loop()
       Serial.print(address,HEX);
       Serial.println("  !");
 
-      #if SCREEN
+      #if OLED_DISPLAY
         display.drawString(((nDevices -1) % 4) * 32, 23 + (round((nDevices -1) /4) *10), (String)nDevices + ":x" + String(address, HEX));
         display.display();
       #endif
@@ -145,7 +154,7 @@ void loop()
         Serial.print("0");
       Serial.println(address,HEX);
 
-      #if SCREEN
+      #if OLED_DISPLAY
         display.drawString(((nDevices -1) % 4) * 32, 23 + (round((nDevices -1) /4) *10), "!:x" + String(address, HEX));
         display.display();
       #endif
@@ -154,14 +163,14 @@ void loop()
   if (nDevices == 0) {
     Serial.println("No I2C devices found\n");
 
-    #if SCREEN
+    #if OLED_DISPLAY
         display.drawString(0, 23 , "No I2C devices found");
         display.display();
     #endif
   } else {
     Serial.println("done\n");
 
-    #if SCREEN
+    #if OLED_DISPLAY
         display.drawString(((nDevices -0) % 4) * 32, 23 + (round((nDevices -0) /4) *10), "done");
         display.display();
     #endif
@@ -176,7 +185,7 @@ void loop()
 
   delay(5000);           // wait 5 seconds for next scan
 
-  #if SCREEN
+  #if OLED_DISPLAY
     // Clear Bottom of Display
     display.setColor(BLACK);
     display.fillRect(0, 13, DISPLAY_WIDTH, DISPLAY_HEIGHT - 13);

diff --git a/I2C_Scanner.ino b/I2C_Scanner.ino
@@ -92,7 +92,7 @@ void setup()
     display.setColor(WHITE);
     // - - - - - - - - - - - - - -
     display.setTextAlignment(TEXT_ALIGN_RIGHT);
-    display.drawString(DISPLAY_WIDTH, 0, "v6");
+    display.drawString(DISPLAY_WIDTH, 0, "v7");
     display.setTextAlignment(TEXT_ALIGN_LEFT);
     display.drawString(0, 0, "I2C Scanner w/ OLED");
     // - - - - - - - - - - - - - -

diff --git a/I2C_Scanner.ino b/I2C_Scanner.ino
@@ -1,9 +1,9 @@
 /*===========================================================================
-  Title: i2c Scanner
+  Title: I2C Scanner
     - Repository: https://gist.github.com/AustinSaintAubin/dc8abb2d168f5f7c27d65bb4829ca870
   
-  Version: 6
-  Date: 2018 / 02 / 12
+  Version: 7
+  Date: 2018 / 02 / 17
   Author: Austin St. Aubin
   Email: [email protected]
   
@@ -46,17 +46,33 @@
 // [ Included Library's ]
 #include <Wire.h>
 #if SCREEN
-  #include "SSD1306.h" // alias for `#include "SSD1306Wire.h"`
+  #include "SSD1306.h"   // alias for `#include "SSD1306Wire.h"`
+  //#include "SH1106.h"  // alias for `#include "SH1106Wire.h"`
+/*For a connection via I2C using brzo_i2c (must be installed) include
+    #include <brzo_i2c.h>  Only needed for Arduino 1.6.5 and earlier
+    #include "SSD1306Brzo.h"
+    #include "SH1106Brzo.h"
+  For a connection via SPI include
+    #include <SPI.h>  Only needed for Arduino 1.6.5 and earlier
+    #include "SSD1306Spi.h"
+    #include "SH1106SPi.h" 
+*/
 #endif
 
 // [ Global Pin Constants / Varables ]
+/*Initialize the OLED display using SPI
+  D5 -> CLK
+  D7 -> MOSI (DOUT)
+  D0 -> RES
+  D2 -> DC
+  D8 -> CS */
 const int pin_sda = D1; //SDA;  // i2c SDA Pin
 const int pin_scl = D2; //SCL;  // i2c SCL Pin
 
 // [ Global Classes ]
 #if SCREEN
 SSD1306  display(0x3c, pin_sda, pin_scl);
-//SSD1306 display(0x3c, pin_sda, pin_scl);
+//SH1106 display(0x3c, pin_sda, pin_scl);
 #endif
 
 void setup()
@@ -166,5 +182,4 @@ void loop()
     display.fillRect(0, 13, DISPLAY_WIDTH, DISPLAY_HEIGHT - 13);
     display.setColor(WHITE);
   #endif
-}
-
+}
diff --git a/I2C_Scanner.ino b/I2C_Scanner.ino
@@ -1,6 +1,6 @@
 /*===========================================================================
   Title: i2c Scanner
-    - Repository: 
+    - Repository: https://gist.github.com/AustinSaintAubin/dc8abb2d168f5f7c27d65bb4829ca870
   
   Version: 6
   Date: 2018 / 02 / 12

diff --git a/I2C_Scanner.ino b/I2C_Scanner.ino
@@ -0,0 +1,170 @@
+/*===========================================================================
+  Title: i2c Scanner
+    - Repository: 
+  
+  Version: 6
+  Date: 2018 / 02 / 12
+  Author: Austin St. Aubin
+  Email: [email protected]
+  
+  Description: 
+    Scans for i2c Devices
+  
+  Version History:
+    Version 6
+      Added i2c Ports
+      Added OLED output
+    Version 5, March 28, 2013
+      As version 4, but address scans now to 127.
+      A sensor seems to use address 120.
+    Version 4, March 3, 2013, Using Arduino 1.0.3
+      by Arduino.cc user Krodal.
+      Changes by louarnold removed.
+      Scanning addresses changed from 0...127 to 1...119,
+      according to the i2c scanner by Nick Gammon
+      http://www.gammon.com.au/forum/?id=10896
+    Version 3, Feb 26  2013
+      V3 by louarnold
+    Version 2, Juni 2012, Using Arduino 1.0.1
+       Adapted to be as simple as possible by Arduino.cc user Krodal
+    Version 1
+      This program (or code that looks like it)
+      can be found in many places.
+      For example on the Arduino.cc forum.
+      The original author is not known.
+      
+  Notes:
+  
+    This sketch tests the standard 7-bit addresses
+    Devices with higher bit address might not be seen properly.
+    
+  ============================================================================= */
+
+// [# Preprocessor Statements #]
+#define SCREEN true  // Enable Debugging Output
+
+// [ Included Library's ]
+#include <Wire.h>
+#if SCREEN
+  #include "SSD1306.h" // alias for `#include "SSD1306Wire.h"`
+#endif
+
+// [ Global Pin Constants / Varables ]
+const int pin_sda = D1; //SDA;  // i2c SDA Pin
+const int pin_scl = D2; //SCL;  // i2c SCL Pin
+
+// [ Global Classes ]
+#if SCREEN
+SSD1306  display(0x3c, pin_sda, pin_scl);
+//SSD1306 display(0x3c, pin_sda, pin_scl);
+#endif
+
+void setup()
+{
+  Wire.begin(pin_sda, pin_scl);
+
+  // Serial
+  Serial.begin(115200);
+  Serial.println("\nI2C Scanner");
+
+  // OLED
+  #if SCREEN
+    display.init();
+    display.flipScreenVertically();
+    display.setContrast(255);
+    display.setFont(ArialMT_Plain_10);
+    display.setColor(WHITE);
+    // - - - - - - - - - - - - - -
+    display.setTextAlignment(TEXT_ALIGN_RIGHT);
+    display.drawString(DISPLAY_WIDTH, 0, "v6");
+    display.setTextAlignment(TEXT_ALIGN_LEFT);
+    display.drawString(0, 0, "I2C Scanner w/ OLED");
+    // - - - - - - - - - - - - - -
+    display.drawLine(0, 12, DISPLAY_WIDTH, 12);
+    // - - - - - - - - - - - - - -
+    display.display();
+  #endif
+}
+
+
+void loop()
+{
+  byte error, address;
+  int nDevices;
+
+  Serial.println("Scanning...");
+
+  #if SCREEN
+    display.setTextAlignment(TEXT_ALIGN_LEFT);
+    display.drawString(0, 14, "Scanning...");
+    display.display();
+  #endif
+
+  nDevices = 0;
+  for(address = 1; address < 127; address++ ) {
+    // The i2c_scanner uses the return value of
+    // the Write.endTransmisstion to see if
+    // a device did acknowledge to the address.
+    Wire.beginTransmission(address);
+    error = Wire.endTransmission();
+
+    if (error == 0) {
+      nDevices++;
+
+      Serial.print("Device found @ 0x");
+      if (address<16) 
+        Serial.print("0");
+      Serial.print(address,HEX);
+      Serial.println("  !");
+
+      #if SCREEN
+        display.drawString(((nDevices -1) % 4) * 32, 23 + (round((nDevices -1) /4) *10), (String)nDevices + ":x" + String(address, HEX));
+        display.display();
+      #endif
+    }
+    else if (error==4) 
+    {
+      Serial.print("Unknow error @ 0x");
+      if (address<16) 
+        Serial.print("0");
+      Serial.println(address,HEX);
+
+      #if SCREEN
+        display.drawString(((nDevices -1) % 4) * 32, 23 + (round((nDevices -1) /4) *10), "!:x" + String(address, HEX));
+        display.display();
+      #endif
+    }    
+  }
+  if (nDevices == 0) {
+    Serial.println("No I2C devices found\n");
+
+    #if SCREEN
+        display.drawString(0, 23 , "No I2C devices found");
+        display.display();
+    #endif
+  } else {
+    Serial.println("done\n");
+
+    #if SCREEN
+        display.drawString(((nDevices -0) % 4) * 32, 23 + (round((nDevices -0) /4) *10), "done");
+        display.display();
+    #endif
+  }
+
+// DEBUGING
+//  for(address = 40; address < 52; address++ ) {
+//    nDevices++;
+//    display.drawString(((nDevices -1) % 4) * 32, 23 + (round((nDevices -1) /4) *10), (String)nDevices + ":x" + String(address, HEX));
+//    Serial.println(address,HEX);
+//  }
+
+  delay(5000);           // wait 5 seconds for next scan
+
+  #if SCREEN
+    // Clear Bottom of Display
+    display.setColor(BLACK);
+    display.fillRect(0, 13, DISPLAY_WIDTH, DISPLAY_HEIGHT - 13);
+    display.setColor(WHITE);
+  #endif
+}
+
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