Arduino-OLED-Voltage-Meter

This simple project created by using 128x64 OLED 0.96" IIC/I2C Serial
and arduino uno if you want more information or schematics to this
diagram
please visit
http://circuitfreak.net/index.php/2015/05/05/arduino-oled-voltage-meter/

analog_voltage_reader_v1_0.ino

@@ -0,0 +1,54 @@
+/*code by Neranjan Walakulpola
+ for more help and diagram visit  
+http://www.http://circuitfreak.net/index.php/2015/05/05/arduino-oled-voltage-meter/
+*/
+
+#include <SPI.h>
+#include <Wire.h>
+#include <Adafruit_GFX.h>
+#include <Adafruit_SSD1306.h>
+
+#define OLED_RESET 4
+Adafruit_SSD1306 display(OLED_RESET);
+
+#if (SSD1306_LCDHEIGHT != 64)
+#error("Height incorrect, please fix Adafruit_SSD1306.h!");
+#endif
+
+void setup() {
+
+
+  // Set up the display
+  display.begin(SSD1306_SWITCHCAPVCC, 0x3C); // Initialize with the I2C addr 0x3D if not working use 0x3C (for the 128x64)
+  display.setTextColor(WHITE);
+
+
+}
+void loop(){
+
+   // draw scrolling text
+  delay(1);
+  display.clearDisplay();
+
+  // text display tests
+  display.setTextSize(1);
+  display.setTextColor(WHITE);
+  display.setCursor(0,0);
+  display.println("Analog Read V1.0");
+  display.setTextColor(BLACK, WHITE);
+  display.println(); 
+  display.println("A0");
+  display.setTextSize(1);
+  display.setTextColor(WHITE);
+  display.println();
+  display.setTextSize(2);
+  display.setTextSize(2);
+  int sensorValue = analogRead(A0);
+  // Convert the analog reading (which goes from 0 - 1023) to a voltage (0 - 5V):
+  float voltage = sensorValue * (5.0 / 1023.0);
+  // print out the value you read:
+  display.print(voltage); display.println("V");
+  display.display();
+
+}
+