From 33cbda400c4408792123a7e973e15eba66643ba8 Mon Sep 17 00:00:00 2001
From: Lim Chae Won <wonitch03@gmail.com>
Date: Thu, 8 Aug 2024 14:35:40 +0900
Subject: [PATCH] Adding I2C Scanner for faster config

---
 .vscode/arduino.json                          |  2 +-
 code/SKIDAQ_Main/SKIDAQ_Main.ino              | 14 +---
 .../Testing_Crate/I2C_Scanner/I2C_Scanner.ino | 83 +++++++++++++++++++
 3 files changed, 85 insertions(+), 14 deletions(-)
 create mode 100644 code/Testing_Crate/I2C_Scanner/I2C_Scanner.ino

diff --git a/.vscode/arduino.json b/.vscode/arduino.json
index 693c355..7012c07 100644
--- a/.vscode/arduino.json
+++ b/.vscode/arduino.json
@@ -1,5 +1,5 @@
 {
-    "sketch": "code\\Testing_Crate\\TestCode\\TestCode.ino",
+    "sketch": "code\\Testing_Crate\\I2C_Scanner\\I2C_Scanner.ino",
     "board": "rp2040:rp2040:rpipico",
     "port": "COM4",
     "output": "../build",
diff --git a/code/SKIDAQ_Main/SKIDAQ_Main.ino b/code/SKIDAQ_Main/SKIDAQ_Main.ino
index 9100644..b992efc 100644
--- a/code/SKIDAQ_Main/SKIDAQ_Main.ino
+++ b/code/SKIDAQ_Main/SKIDAQ_Main.ino
@@ -40,23 +40,11 @@
 #include <Adafruit_ADS1X15.h>
 #include <Adafruit_Sensor.h>
 #include <Adafruit_ADXL345_U.h>
-#include <DHT.h>
-#include <DHT_U.h>
 #include <SoftwareSerial.h>
 #include "DFRobot_MCP2515.h"
 #include <SPI.h>
-
 #include <Wire.h>
 
-// ——————————————————————————————————————————————————————————————————————————————
-//    DHT Temp/Humidity Sensor Configuration
-// ——————————————————————————————————————————————————————————————————————————————
-#define DHTPIN 10     // DHT Signal Pin
-#define DHTTYPE DHT22 // DHT Sensor type: DHT22
-DHT_Unified dht(DHTPIN, DHTTYPE);
-uint32_t delayMS;
-float temperature = 0.0; // defining global variable for using on CAN network
-float humidity = 0.0;
 
 // ——————————————————————————————————————————————————————————————————————————————
 //    CAN Interface Configuration
@@ -572,7 +560,7 @@ void ADS1115_Init(void)
     // ads.setGain(GAIN_FOUR);       // 4x gain   +/- 1.024V  1 bit = 0.5mV    0.03125mV
     // ads.setGain(GAIN_EIGHT);      // 8x gain   +/- 0.512V  1 bit = 0.25mV   0.015625mV
     // ads.setGain(GAIN_SIXTEEN);    // 16x gain  +/-
-    if (!ads.begin())
+    if (!ads.begin(0x))
     {
         Serial.println("Error: Check ADS1115 Wiring");
         while (1)
diff --git a/code/Testing_Crate/I2C_Scanner/I2C_Scanner.ino b/code/Testing_Crate/I2C_Scanner/I2C_Scanner.ino
new file mode 100644
index 0000000..27a491c
--- /dev/null
+++ b/code/Testing_Crate/I2C_Scanner/I2C_Scanner.ino
@@ -0,0 +1,83 @@
+ // --------------------------------------
+// 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
+}
\ No newline at end of file