// ESP8266 ArduSiPM mini OLED Display

//Program using ESP8266 board and OLED ssd1306 I2c to dispay ArduSiPM data rate.

//Author:valerio.bocci@roma1.infn.it

// August 2018.

// Simple program

// Using OLED ssd1306 128x64 as ArduSiPM Data Display

//

// DATA DISPLAY

// Count (instantaneous count from ArduSiPM acquisition window)

// counts/sec (counts accumulated in a 60 Sec window)

// CPM (Count per minute of the previous 60 seconds window)

// Rate (rate in Hz of the previous 60 seconds window)

//

//

#include <Wire.h> // Only needed for Arduino 1.6.5 and earlier

//https://github.com/ThingPulse/esp8266-oled-ssd1306

// you can found this library in Arduino library manager using the following resarch key: ESP32 ESP8266 OLED

#include "SSD1306.h" //

#include "images.h"

//SSD1306 Connection to D1 mini

// VDD -> 3.3 V o 5 volt

// GND -> G

// SCK -> D1

// SDA -> D2

//display(ADDRESS, SDA, SDC);

SSD1306 display(0x3c, D2, D1);

// Stringhe

char character;

String Line,countstring;

int linenr,seconds,counts,CPM;

// remember:

// Println send data to the serial port as human-readable ASCII text

//followed by a

//carriage return character (ASCII 13, or '\r')

// and

// a newline character (ASCII 10, or '\n')

void setup() {

Serial.begin(115200);

Serial.println();

Serial.println();

// Initialising the UI will init the display too.

display.init();

display.flipScreenVertically();

///----------------FONTs--------------------------

// Sets the current font. Available default fonts

// ArialMT_Plain_10, ArialMT_Plain_16, ArialMT_Plain_24

// Or create one with the font tool at http://oleddisplay.squix.ch

display.setFont(ArialMT_Plain_10);

// clear the display

display.clear();

display.drawString(0, 0, " waiting ArduSiPM data");

display.drawString(0, 11," PLEASE CONNECT ");

display.drawString(0, 21," RX (ESP8266) ");

display.drawString(0, 31," to TX (ArduSiPM)");

display.drawString(0, 41," Author:");

display.drawString(0, 51,"valerio.bocci@roma1.infn.it");

display.display();

}

void loop() {

if (Serial.available()) {

character=Serial.read();

switch (character)

{

case '$':

Line="";

character=' ';

break;

case '\r':

character='\r';

break;

case '\n':

character='\n';

seconds=seconds+1;

counts=counts+Line.toInt();//number of counts in

countstring=String(counts);

display.clear();

Line="ArduSiPM Data (V.Bocci):\r\nCounts:"+Line+"\r\ncounts:"+String(counts)+"/"+String(seconds)+" Sec"+"\r\nCPM:"+String(CPM)+"\r\nRate:"+String(CPM/60.)+"Hz";

display.drawString(0, 0, Line);

display.display();

linenr=linenr+1;

if (linenr>0)

{

Line="";

linenr=0;

}

if (seconds==60)

{

seconds=0;

CPM=counts;

counts=0;

}

break;

case '-':

Line="";

break;

}

Line=Line+character;

}

}