Konica Minolta MFP Touch screen use with Arduino Uno

How to reuse wrong Konica Minolta MFP display touch panel.

Jan 18, 2018

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touch panel

capacitive touch panel

i2c communication

spi color tft display

spi tft display

arduino uno

Components and supplies

Jumper wires (generic)

Breadboard (generic)

Resistor 10k ohm

1.44" Colorful SPI TFT LCD Display ST7735 128X128 Replace Nokia 5110/3310 LCD

Arduino UNO

Original New Touch Screen for Konica Minolta Bizhub C224 C284 C364 C554 C654 C754 control Panel

Apps and platforms

Arduino IDE

Project description

Code

Source Code

arduino

1#include <Wire.h>               //Connect Konica Minolta touch screen  SDA to A04 and SCK to A05
2#include <Adafruit_GFX.h>       //Core graphics library
3#include  <Adafruit_ST7735.h>    //Hardware-specific library
4#include <SPI.h>
5 
6#define  TFT_SCLK 13
7#define TFT_MOSI 11
8#define TFT_CS 10
9#define TFT_RST 9
10#define  TFT_DC 8
11 
12Adafruit_ST7735 tft = Adafruit_ST7735(TFT_CS, TFT_DC, TFT_MOSI,  TFT_SCLK, TFT_RST);
13 
14byte register1;
15byte register2;
16byte register3;
17byte  register4;
18byte register5;
19byte register6;
20byte register7;
21byte register8;
22byte  register9;
23byte register10;
24byte register11;
25 
26int xx1, xx2, yy1, yy2,  r, x, y; //variables
27 
28void setup() {
29  tft.initR(INITR_REDTAB);    //initialize  a ST7735S chip, black tab
30  tft.fillScreen(ST7735_BLACK); //clear screen
31  Wire.begin(0x5c);           //join i2c bus (address optional for master)
32  //Serial.begin(115200);     //start serial for output
33  //Serial.println("starting"); //print "starting"  to serial
34}
35 
36void loop() {
37  Wire.beginTransmission(0x5C); //touch  panel address
38  Wire.write(0x00);       //start register
39  Wire.endTransmission();     //communication close
40  Wire.requestFrom(0x5c, 11);   //how many byte to  read from address 0x5C
41 
42  register1 = Wire.read();    //first byte reading  (Touch counter)
43  register2 = Wire.read();    //second reading (????)
44  register3  = Wire.read();    //etc etc etc (first finger X coordinate low byte)
45  register4  = Wire.read();    //first finger X coordinate high byte
46  register5 = Wire.read();    //first finger Y coordinate low byte
47  register6 = Wire.read();    //first  finger Y coordinate high byte
48  register7 = Wire.read();    //??
49  register8  = Wire.read();    //second finger X coordinate low byte
50  register9 = Wire.read();    //second finger X coordinate high byte
51  register10 = Wire.read();   //second  finger Y coordinate low byte
52  register11 = Wire.read();   //second finger Y  coordinate high byte
53 
54 
55  xx1 = (register4 * 256) + register3;    //calculate  2 byte to touch coordinate (0-1024)
56  yy1 = (register6 * 256) + register5;    //calculate  2 byte to touch coordinate (0-600)
57  xx2 = (register9 * 256) + register8;    //calculate  2 byte to touch coordinate (0-1024)
58  yy2 = (register11 * 256) + register10;  //calculate 2 byte to touch coordinate (0-600)
59 
60  xx1 = xx1 / 8;              //divide  by 8 to scale 128x128
61  xx1 = 128 - xx1;
62 
63  yy1 = yy1 / 4.6875;         //divide  by 4.6 to scale 128x128
64  yy1 = 128 - yy1;
65 
66  xx2 = xx2 / 8;
67  xx2  = 128 - xx2;
68 
69  yy2 = yy2 / 4, 6875;
70  yy2 = 128 - yy2;
71 
72  //x=  xx1 - xx2;             //calculate radius
73  //y= yy2 - yy2;
74 
75  //x= x*x;                   //pythagoras
76  //y= y*y;
77  //r = x +y;
78  //r= sqrt(r);
79  
80  //Serial.print("Touch counter:");
81  //Serial.println(register1);
82  //Serial.print("First finger horinzontal (X) coordinate:");
83  //Serial.println(xx1);
84  
85  //Serial.print("First finger vertical (Y) coordinate:");
86  //Serial.println(yy1);
87  
88  //Serial.print("Second finger horinzontal (X) coordinate:");
89  //Serial.println(xx2);
90  
91  //Serial.print("Second finger vertical (Y) coordinate:");
92  //Serial.println(yy2);
93  
94  tft.drawPixel(xx1, yy1, ST7735_WHITE);  //write dots to screen first finger
95  
96  tft.drawPixel(xx2, yy2, ST7735_GREEN);  //write dots to screen second finger
97  
98  //Draw line between two finger
99  //tft.drawLine(xx1,yy1,xx2,yy2, ST7735_WHITE);  // test
100 
101  //Draw dot for first finger and draw circle with radius between  first and second finger disatance
102  //if (register1 <= 1) {             //test
103  //  tft.drawPixel(xx1, yy1, ST7735_WHITE);    //test
104  //}                       //test
105  //else {tft.drawCircle (xx1,yy1,r,ST7735_BLUE); //test
106  //}                       //test
107  //delay(100);                   //test
108
109    }
110

#include <Wire.h>               //Connect Konica Minolta touch screen  SDA to A04 and SCK to A05
#include <Adafruit_GFX.h>       //Core graphics library
#include  <Adafruit_ST7735.h>    //Hardware-specific library
#include <SPI.h>
 
#define  TFT_SCLK 13
#define TFT_MOSI 11
#define TFT_CS 10
#define TFT_RST 9
#define  TFT_DC 8
 
Adafruit_ST7735 tft = Adafruit_ST7735(TFT_CS, TFT_DC, TFT_MOSI,  TFT_SCLK, TFT_RST);
 
byte register1;
byte register2;
byte register3;
byte  register4;
byte register5;
byte register6;
byte register7;
byte register8;
byte  register9;
byte register10;
byte register11;
 
int xx1, xx2, yy1, yy2,  r, x, y; //variables
 
void setup() {
  tft.initR(INITR_REDTAB);    //initialize  a ST7735S chip, black tab
  tft.fillScreen(ST7735_BLACK); //clear screen
  Wire.begin(0x5c);           //join i2c bus (address optional for master)
  //Serial.begin(115200);     //start serial for output
  //Serial.println("starting"); //print "starting"  to serial
}
 
void loop() {
  Wire.beginTransmission(0x5C); //touch  panel address
  Wire.write(0x00);       //start register
  Wire.endTransmission();     //communication close
  Wire.requestFrom(0x5c, 11);   //how many byte to  read from address 0x5C
 
  register1 = Wire.read();    //first byte reading  (Touch counter)
  register2 = Wire.read();    //second reading (????)
  register3  = Wire.read();    //etc etc etc (first finger X coordinate low byte)
  register4  = Wire.read();    //first finger X coordinate high byte
  register5 = Wire.read();    //first finger Y coordinate low byte
  register6 = Wire.read();    //first  finger Y coordinate high byte
  register7 = Wire.read();    //??
  register8  = Wire.read();    //second finger X coordinate low byte
  register9 = Wire.read();    //second finger X coordinate high byte
  register10 = Wire.read();   //second  finger Y coordinate low byte
  register11 = Wire.read();   //second finger Y  coordinate high byte
 
 
  xx1 = (register4 * 256) + register3;    //calculate  2 byte to touch coordinate (0-1024)
  yy1 = (register6 * 256) + register5;    //calculate  2 byte to touch coordinate (0-600)
  xx2 = (register9 * 256) + register8;    //calculate  2 byte to touch coordinate (0-1024)
  yy2 = (register11 * 256) + register10;  //calculate 2 byte to touch coordinate (0-600)
 
  xx1 = xx1 / 8;              //divide  by 8 to scale 128x128
  xx1 = 128 - xx1;
 
  yy1 = yy1 / 4.6875;         //divide  by 4.6 to scale 128x128
  yy1 = 128 - yy1;
 
  xx2 = xx2 / 8;
  xx2  = 128 - xx2;
 
  yy2 = yy2 / 4, 6875;
  yy2 = 128 - yy2;
 
  //x=  xx1 - xx2;             //calculate radius
  //y= yy2 - yy2;
 
  //x= x*x;                   //pythagoras
  //y= y*y;
  //r = x +y;
  //r= sqrt(r);
  
  //Serial.print("Touch counter:");
  //Serial.println(register1);
  //Serial.print("First finger horinzontal (X) coordinate:");
  //Serial.println(xx1);
  
  //Serial.print("First finger vertical (Y) coordinate:");
  //Serial.println(yy1);
  
  //Serial.print("Second finger horinzontal (X) coordinate:");
  //Serial.println(xx2);
  
  //Serial.print("Second finger vertical (Y) coordinate:");
  //Serial.println(yy2);
  
  tft.drawPixel(xx1, yy1, ST7735_WHITE);  //write dots to screen first finger
  
  tft.drawPixel(xx2, yy2, ST7735_GREEN);  //write dots to screen second finger
  
  //Draw line between two finger
  //tft.drawLine(xx1,yy1,xx2,yy2, ST7735_WHITE);  // test
 
  //Draw dot for first finger and draw circle with radius between  first and second finger disatance
  //if (register1 <= 1) {             //test
  //  tft.drawPixel(xx1, yy1, ST7735_WHITE);    //test
  //}                       //test
  //else {tft.drawCircle (xx1,yy1,r,ST7735_BLUE); //test
  //}                       //test
  //delay(100);                   //test

    }

Source Code

arduino

1#include <Wire.h>               //Connect Konica Minolta touch screen   SDA to A04 and SCK to A05
2#include <Adafruit_GFX.h>       //Core graphics library
3#include   <Adafruit_ST7735.h>    //Hardware-specific library
4#include <SPI.h>
5 
6#define   TFT_SCLK 13
7#define TFT_MOSI 11
8#define TFT_CS 10
9#define TFT_RST 9
10#define   TFT_DC 8
11 
12Adafruit_ST7735 tft = Adafruit_ST7735(TFT_CS, TFT_DC, TFT_MOSI,   TFT_SCLK, TFT_RST);
13 
14byte register1;
15byte register2;
16byte register3;
17byte   register4;
18byte register5;
19byte register6;
20byte register7;
21byte register8;
22byte   register9;
23byte register10;
24byte register11;
25 
26int xx1, xx2, yy1, yy2,   r, x, y; //variables
27 
28void setup() {
29  tft.initR(INITR_REDTAB);    //initialize   a ST7735S chip, black tab
30  tft.fillScreen(ST7735_BLACK); //clear screen
31   Wire.begin(0x5c);           //join i2c bus (address optional for master)
32  //Serial.begin(115200);      //start serial for output
33  //Serial.println("starting"); //print "starting"   to serial
34}
35 
36void loop() {
37  Wire.beginTransmission(0x5C); //touch   panel address
38  Wire.write(0x00);       //start register
39  Wire.endTransmission();      //communication close
40  Wire.requestFrom(0x5c, 11);   //how many byte to   read from address 0x5C
41 
42  register1 = Wire.read();    //first byte reading   (Touch counter)
43  register2 = Wire.read();    //second reading (????)
44  register3   = Wire.read();    //etc etc etc (first finger X coordinate low byte)
45  register4   = Wire.read();    //first finger X coordinate high byte
46  register5 = Wire.read();     //first finger Y coordinate low byte
47  register6 = Wire.read();    //first   finger Y coordinate high byte
48  register7 = Wire.read();    //??
49  register8   = Wire.read();    //second finger X coordinate low byte
50  register9 = Wire.read();     //second finger X coordinate high byte
51  register10 = Wire.read();   //second   finger Y coordinate low byte
52  register11 = Wire.read();   //second finger Y   coordinate high byte
53 
54 
55  xx1 = (register4 * 256) + register3;    //calculate   2 byte to touch coordinate (0-1024)
56  yy1 = (register6 * 256) + register5;    //calculate   2 byte to touch coordinate (0-600)
57  xx2 = (register9 * 256) + register8;    //calculate   2 byte to touch coordinate (0-1024)
58  yy2 = (register11 * 256) + register10;   //calculate 2 byte to touch coordinate (0-600)
59 
60  xx1 = xx1 / 8;              //divide   by 8 to scale 128x128
61  xx1 = 128 - xx1;
62 
63  yy1 = yy1 / 4.6875;         //divide   by 4.6 to scale 128x128
64  yy1 = 128 - yy1;
65 
66  xx2 = xx2 / 8;
67  xx2   = 128 - xx2;
68 
69  yy2 = yy2 / 4, 6875;
70  yy2 = 128 - yy2;
71 
72  //x=   xx1 - xx2;             //calculate radius
73  //y= yy2 - yy2;
74 
75  //x= x*x;                    //pythagoras
76  //y= y*y;
77  //r = x +y;
78  //r= sqrt(r);
79   
80  //Serial.print("Touch counter:");
81  //Serial.println(register1);
82   //Serial.print("First finger horinzontal (X) coordinate:");
83  //Serial.println(xx1);
84   
85  //Serial.print("First finger vertical (Y) coordinate:");
86  //Serial.println(yy1);
87   
88  //Serial.print("Second finger horinzontal (X) coordinate:");
89  //Serial.println(xx2);
90   
91  //Serial.print("Second finger vertical (Y) coordinate:");
92  //Serial.println(yy2);
93   
94  tft.drawPixel(xx1, yy1, ST7735_WHITE);  //write dots to screen first finger
95   
96  tft.drawPixel(xx2, yy2, ST7735_GREEN);  //write dots to screen second finger
97   
98  //Draw line between two finger
99  //tft.drawLine(xx1,yy1,xx2,yy2, ST7735_WHITE);   // test
100 
101  //Draw dot for first finger and draw circle with radius between   first and second finger disatance
102  //if (register1 <= 1) {             //test
103   //  tft.drawPixel(xx1, yy1, ST7735_WHITE);    //test
104  //}                       //test
105   //else {tft.drawCircle (xx1,yy1,r,ST7735_BLUE); //test
106  //}                       //test
107   //delay(100);                   //test
108
109    }
110

#include <Wire.h>               //Connect Konica Minolta touch screen   SDA to A04 and SCK to A05
#include <Adafruit_GFX.h>       //Core graphics library
#include   <Adafruit_ST7735.h>    //Hardware-specific library
#include <SPI.h>
 
#define   TFT_SCLK 13
#define TFT_MOSI 11
#define TFT_CS 10
#define TFT_RST 9
#define   TFT_DC 8
 
Adafruit_ST7735 tft = Adafruit_ST7735(TFT_CS, TFT_DC, TFT_MOSI,   TFT_SCLK, TFT_RST);
 
byte register1;
byte register2;
byte register3;
byte   register4;
byte register5;
byte register6;
byte register7;
byte register8;
byte   register9;
byte register10;
byte register11;
 
int xx1, xx2, yy1, yy2,   r, x, y; //variables
 
void setup() {
  tft.initR(INITR_REDTAB);    //initialize   a ST7735S chip, black tab
  tft.fillScreen(ST7735_BLACK); //clear screen
   Wire.begin(0x5c);           //join i2c bus (address optional for master)
  //Serial.begin(115200);      //start serial for output
  //Serial.println("starting"); //print "starting"   to serial
}
 
void loop() {
  Wire.beginTransmission(0x5C); //touch   panel address
  Wire.write(0x00);       //start register
  Wire.endTransmission();      //communication close
  Wire.requestFrom(0x5c, 11);   //how many byte to   read from address 0x5C
 
  register1 = Wire.read();    //first byte reading   (Touch counter)
  register2 = Wire.read();    //second reading (????)
  register3   = Wire.read();    //etc etc etc (first finger X coordinate low byte)
  register4   = Wire.read();    //first finger X coordinate high byte
  register5 = Wire.read();     //first finger Y coordinate low byte
  register6 = Wire.read();    //first   finger Y coordinate high byte
  register7 = Wire.read();    //??
  register8   = Wire.read();    //second finger X coordinate low byte
  register9 = Wire.read();     //second finger X coordinate high byte
  register10 = Wire.read();   //second   finger Y coordinate low byte
  register11 = Wire.read();   //second finger Y   coordinate high byte
 
 
  xx1 = (register4 * 256) + register3;    //calculate   2 byte to touch coordinate (0-1024)
  yy1 = (register6 * 256) + register5;    //calculate   2 byte to touch coordinate (0-600)
  xx2 = (register9 * 256) + register8;    //calculate   2 byte to touch coordinate (0-1024)
  yy2 = (register11 * 256) + register10;   //calculate 2 byte to touch coordinate (0-600)
 
  xx1 = xx1 / 8;              //divide   by 8 to scale 128x128
  xx1 = 128 - xx1;
 
  yy1 = yy1 / 4.6875;         //divide   by 4.6 to scale 128x128
  yy1 = 128 - yy1;
 
  xx2 = xx2 / 8;
  xx2   = 128 - xx2;
 
  yy2 = yy2 / 4, 6875;
  yy2 = 128 - yy2;
 
  //x=   xx1 - xx2;             //calculate radius
  //y= yy2 - yy2;
 
  //x= x*x;                    //pythagoras
  //y= y*y;
  //r = x +y;
  //r= sqrt(r);
   
  //Serial.print("Touch counter:");
  //Serial.println(register1);
   //Serial.print("First finger horinzontal (X) coordinate:");
  //Serial.println(xx1);
   
  //Serial.print("First finger vertical (Y) coordinate:");
  //Serial.println(yy1);
   
  //Serial.print("Second finger horinzontal (X) coordinate:");
  //Serial.println(xx2);
   
  //Serial.print("Second finger vertical (Y) coordinate:");
  //Serial.println(yy2);
   
  tft.drawPixel(xx1, yy1, ST7735_WHITE);  //write dots to screen first finger
   
  tft.drawPixel(xx2, yy2, ST7735_GREEN);  //write dots to screen second finger
   
  //Draw line between two finger
  //tft.drawLine(xx1,yy1,xx2,yy2, ST7735_WHITE);   // test
 
  //Draw dot for first finger and draw circle with radius between   first and second finger disatance
  //if (register1 <= 1) {             //test
   //  tft.drawPixel(xx1, yy1, ST7735_WHITE);    //test
  //}                       //test
   //else {tft.drawCircle (xx1,yy1,r,ST7735_BLUE); //test
  //}                       //test
   //delay(100);                   //test

    }

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