I2cScanner - Revision history

Ows wiki: /* Code mini */

2025-10-21T21:03:47Z

‎Code mini

Ows wiki: /* Code */

2025-10-21T20:57:33Z

‎Code

Ows wiki at 20:56, 21 October 2025

2025-10-21T20:56:45Z

Ows wiki: /* Code */

2025-10-18T19:15:45Z

‎Code

Ows wiki: /* Code */

2025-10-18T19:14:50Z

‎Code

Ows wiki: /* Code */

2025-06-13T21:34:31Z

‎Code

Ows wiki: /* Code */

2025-06-13T21:33:58Z

‎Code

Ows wiki: Protected "I2cScanner" ([Edit=Allow only administrators] (indefinite) [Move=Allow only administrators] (indefinite)) [cascading]

2020-04-01T23:25:44Z

Protected "I2cScanner" ([Edit=Allow only administrators] (indefinite) [Move=Allow only administrators] (indefinite)) [cascading]

Ows wiki: /* Code */

2020-04-01T23:21:31Z

‎Code

Ows wiki at 23:20, 1 April 2020

2020-04-01T23:20:10Z

@@ Line 106: / Line 106: @@
 <br>
-==== Code mini ====
+==== Code Vérification de l’adresse I2C <b>Petit Scanner</b> ====
 <PRE>
 </PRE>

@@ Line 4: / Line 4: @@
 https://playground.arduino.cc/Main/I2cScanner/
-==== Code ====
+==== Code i2c_scanner ====
 <pre>
 // --------------------------------------

← Older revision		Revision as of 20:56, 21 October 2025
Line 102:		Line 102:
	}		}
	</pre>		</pre>
		+
		+	-----
		+	<br>
		+
		+	==== Code mini ====
		+
		+	<PRE>
		+	</PRE>

@@ Line 41: / Line 41: @@
 [[File:16x2 LCD White on Blue 01.jpg|200px]]
-Grove Base for XIAO (Port <b>i2c</b>) &#9989; résultat : I2C device found at address 0x3E  !<br>
+Grove Base for XIAO (Port <b>i2c</b>) &#9989; <b>résultat : </b> I2C device found at address  <b>0x3E  !</b><br>
 XIAO-ESP32S3 <br>
 x2 LCD White on Blue

@@ Line 35: / Line 35: @@
 //
 </pre>
 <pre>

@@ Line 34: / Line 34: @@
 // Devices with higher bit address might not be seen properly.
 //
 #include <Wire.h>

← Older revision	Revision as of 23:25, 1 April 2020
(No difference)

← Older revision		Revision as of 23:21, 1 April 2020
Line 5:		Line 5:

	==== Code ====		==== Code ====
		+	<pre>
		+	// --------------------------------------
		+	// i2c_scanner
		+	//
		+	// 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 know.
		+	// Version 2, Juni 2012, Using Arduino 1.0.1
		+	// Adapted to be as simple as possible by Arduino.cc user Krodal
		+	// Version 3, Feb 26 2013
		+	// V3 by louarnold
		+	// 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
		+	// https://www.gammon.com.au/forum/?id=10896
		+	// Version 5, March 28, 2013
		+	// As version 4, but address scans now to 127.
		+	// A sensor seems to use address 120.
		+	// Version 6, November 27, 2015.
		+	// Added waiting for the Leonardo serial communication.
		+	//
		+	//
		+	// This sketch tests the standard 7-bit addresses
		+	// Devices with higher bit address might not be seen properly.
		+	//
		+
		+	#include <Wire.h>
		+
		+
		+	void setup()
		+	{
		+	Wire.begin();
		+
		+	Serial.begin(9600);
		+	while (!Serial); // Leonardo: wait for serial monitor
		+	Serial.println("\nI2C Scanner");
		+	}
		+
		+
		+	void loop()
		+	{
		+	byte error, address;
		+	int nDevices;
		+
		+	Serial.println("Scanning...");
		+
		+	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)
		+	{
		+	Serial.print("I2C device found at address 0x");
		+	if (address<16)
		+	Serial.print("0");
		+	Serial.print(address,HEX);
		+	Serial.println(" !");
		+
		+	nDevices++;
		+	}
		+	else if (error==4)
		+	{
		+	Serial.print("Unknown error at address 0x");
		+	if (address<16)
		+	Serial.print("0");
		+	Serial.println(address,HEX);
		+	}
		+	}
		+	if (nDevices == 0)
		+	Serial.println("No I2C devices found\n");
		+	else
		+	Serial.println("done\n");
		+
		+	delay(5000); // wait 5 seconds for next scan
		+	}
		+	</pre>

← Older revision		Revision as of 23:20, 1 April 2020
Line 1:		Line 1:
−	I2cScanner	+	==== I2cScanner ====
		+

	https://playground.arduino.cc/Main/I2cScanner/		https://playground.arduino.cc/Main/I2cScanner/
		+
		+	==== Code ====