Introduction: Arduino Oscilloscope With Nokia 5110 LCD
In this instructable I will show you how to make an oscilloscope with the help of an arduino nano and a nokia 5110 LCD display
Step 1: Things Required
1)Arduino board
2)Nokia 5110 LCD
3)2*10k ohm potentiometers
4)Jumper wires
5)Breadboard
Step 2: Circuit and Connections
Connect the lcd as shown in the 1st image
to connect the potentiometers.
First connect the 2 terminal ends of both the potentiometers to +5V of arduino and ground of arduino.
Now connect the middle pin of both the potentiometers to analog pins A1 and A2 respectively.
The input signal is given between A0 and ground.
Step 3: The Code:You Will Have to Download the Adafruit Pcd8544.h and Adafruit Gfx.h Library
#include
#include
#include
int dial1,dial2; long tim,values[84];
Adafruit_PCD8544 display = Adafruit_PCD8544(13,11,9,10,8);
void setup()
{
display.begin();
display.setContrast(50);
}
void loop() {
dial1 = analogRead(A1); //fine tuner for time per division
dial2 = analogRead(A2); //range selector for time per division
//////////////oscilloscope/////////////////
int n=map(dial2,0,1023,1,30); // range,either from 0-1000,1000-2000,2000-3000 and so on tim=map(dial1,0,1023,(n-1)*1000,n*1000); //
for(int i=0;i<84;i++)
{
values[i]=map(analogRead(A0),0,1023,0,47); //getting values
delayMicroseconds(tim);
}
display.clearDisplay();
display.drawLine(0,24,84,24,BLACK); //x-axis
display.drawLine(42,0,42,48,BLACK); //y-axis
display.drawRect(0,0,84,48, BLACK);
for(int i=4;i<=44;i+=5)
{
display.drawLine(41,i,43,i,BLACK); //scale
}
for(int i=0;i<84;i++)
{
display.drawLine(i,47-values[i],i,47-values[i+1], BLACK); //drawing graph
}
display.display();
}
