2.4" 240x320 color LCD と Arduino nano で、小さなターミナルを自作してみました。写真中央のArduino-NANOをコントローラとして、手前の黒いコネクタはマイコン用のUART、左上は電源コネクタ、右上はキーボード用のPS2コネクタ、その他はArguino互換のピン配置で、LCDモジュール用のコネクタだ。
実験なので、Arduino互換ピン配置のユニバーサルボードを使って、ラッピングで配線をした。
液晶モジュールを載せたところ。
キーボードと電源をつないで、ハイこの通り。
チャレンジしてみたい方、お気軽にご連絡ください。
お問い合わせ
参考までに、Arduino－NANOのCodeです。
是非、コメントをお寄せください。
/* By T.Kasahara May-26 '17 CHUM_Terminal Ver1.0
*PS2Keyboard Japanese Keyboard Layout
Color TFTLCD Adafruit library
PS2 Key board
Charactor Terminal
F1 :Help
F5 :Save Setting
F6 :Local Echo
F7 :Board Rate
F8 :Reverse Color
F9 :Back color
F10:Font color
F11:Rotation
F12:Font Size
-ESC- for Exit from Settings
*/
//#define DEBUG //Debug mode
#ifdef DEBUG
#define DEBUG_PRINTLN(x) Serial.println (x)
#define DEBUG_PRINT(x) Serial.print (x)
#define DEBUG_FPRINT(x,y) Serial.print (x,y)
#else
#define DEBUG_PRINTLN(x)
#define DEBUG_PRINT(x)
#define DEBUG_FPRINT(x,y)
#endif
#include
#include
#include
#define YP A1 // must be an analog pin, use "An" notation!
#define XM A2 // must be an analog pin, use "An" notation!
#define YM 7 // can be a digital pin
#define XP 6 // can be a digital pin
#define TS_MINX 150
#define TS_MINY 120
#define TS_MAXX 920
#define TS_MAXY 940
// For better pressure precision, we need to know the resistance
// between X+ and X- Use any multimeter to read it
// For the one we're using, its 300 ohms across the X plate
TouchScreen ts = TouchScreen(XP, YP, XM, YM, 300);
#define LCD_CS A3
#define LCD_CD A2
#define LCD_WR A1
#define LCD_RD A0
CHUM_TFTLCD tft(LCD_CS, LCD_CD, LCD_WR, LCD_RD);
#define T_Wrap HIGH //Text Wrap around ON:HIGH,OFF:LOW
#define blink_speed 1000
#define D_Width 240 //Display Width size Pixel
#define D_Hight 320 //Display Hight size Pixel
#define Wait_setup 2000
// Assign human-readable names to some common 16-bit color values:
#define BLACK 0x0000
#define BLUE 0x001F
#define RED 0xF800
#define GREEN 0x07E0
#define CYAN 0x07FF
#define MAGENTA 0xF81F
#define YELLOW 0xFFE0
#define WHITE 0xFFFF
#include
#define EE_boardrate 1023
#define EE_F_color 1022
#define EE_B_color 1021
#define EE_rotation 1020
#define EE_C_Size 1019
#define EE_Echo 1018
#include
const int DataPin = 18;
const int IRQpin = 2;
PS2Keyboard keyboard;
int color[]={BLACK,BLUE,RED,GREEN,CYAN,MAGENTA,YELLOW,WHITE};
int C_Size = 2; //Charactor Mag.
#define C_Max 4
long rate[]={9600,19200,38400,57600,74880,115200,230400,250000};
int boardrate = 0;
int rotation = 0; //Display rotation 0&2:H,1&3:V
int F_color = 0;
int B_color = 0;
int echo = 0;
int End_Line ;
int C_Line = 0;
boolean toggle = 0;
int ii,jj;
char cc;
uint8_t c;
int count;
unsigned long c_time;
void setup() {
// Restore settings
boardrate = EEPROM.read(EE_boardrate);
F_color = EEPROM.read(EE_F_color);
B_color = EEPROM.read(EE_B_color);
rotation = EEPROM.read(EE_rotation);
C_Size = EEPROM.read(EE_C_Size);
if(C_Size == 0) C_Size = 1;
echo = EEPROM.read(EE_Echo);
//Keyboard Serial Begin
keyboard.begin(DataPin, IRQpin, PS2Keymap_Japanese);
Serial.begin(rate[boardrate]);
DEBUG_PRINTLN(F("CHUM_Terminal V0.1"));
// TFTLCD Initialize
tft.reset();
uint16_t identifier = tft.readID();
tft.begin(identifier);
refresh(); //Refresh display
tft.print(F("F1 for Setting"));
refresh(); //Refresh display
tft.print(F("F1 for Setting"));
// Setting
if (keyboard.available()) {
c = cc = keyboard.read();
DEBUG_FPRINT(c,HEX);
DEBUG_PRINT(" ");
if(c == 0xc2){
while(c != 0x1B) { // Wait ESC
switch(c){
case 0x81: // F1 Help
tft.fillScreen(color[B_color]); // Screen clear
tft.setTextWrap(T_Wrap); //Set Text Wrap around
tft.setCursor(0,0);
DEBUG_PRINTLN(F("F1 :Help"));
tft.println(F("F1 :Help"));
tft.println(F("F5 :Save EEPROM"));
tft.println(F("F6 :Local Echo"));
tft.println(F("F7 :Board Rate"));
tft.println(F("F8 :Reverse Color"));
tft.println(F("F9 :Back color"));
tft.println(F("F10:Font color"));
tft.println(F("F11:Rotation"));
tft.println(F("F12:Font Size"));
tft.println();
tft.println(F("-ESC- for Exit from Help"));
break;
case 0x85: // F5 Save Settings to EEPROM
F5_Set_EEPROM();
break;
case 0x86: // F6 Local Echo On/Off
F6_sw_echo();
break;
case 0x87: // F7 BoardRte
F7_BoardRate();
break;
case 0x88: // F8 Reverse color
jj = B_color;
B_color = F_color;
F_color = jj;
refresh();
break;
case 0x89: // F9 Back ground color KCMYGBR
B_color += 1;
if( B_color >7) B_color =0;
refresh();
break;
case 0x8A: // F10 Font Color WRGBMYC
F_color -= 1;
if( F_color < 0) F_color =7;
refresh();
break;
case 0x8B: // F11 Rotation 0,1,2,3
rotation +=1;
if(rotation > 3) rotation=0;
refresh();
break;
case 0x8C: // F12 Zoom 1,2,3,4
C_Size +=1;
if(C_Size > C_Max) C_Size=1;
refresh();
break;
default:
;
break;
}
while (!keyboard.available()) ;
cc = keyboard.read();
c = cc;
DEBUG_FPRINT(c,HEX);
DEBUG_PRINT(" ");
}
refresh();
}
}
refresh();
c_time = millis();
}
//************************************************//
void loop() {
C_Line = tft.getCursorY();
// Keyboard
if (keyboard.available()) {
off_Cursor();
c = cc = keyboard.read();
DEBUG_FPRINT(c,HEX);
DEBUG_PRINT(" ");
switch(c){
case 0x0d: //CR
if ( echo != 0) New_Line();
Serial.println();
break;
case 0x0a: //LF
if ( echo != 0) New_Line();
Serial.println();
break;
case 0x08: //Back Space or Left arrow
if ( echo != 0) Back_Space(1);
Serial.print(cc);
break;
case 0x7F: //Delete
if ( echo != 0) Delete_Space();
Serial.print(cc);
break;
case 0x8d: // Up
Serial.write(0x1b);Serial.write(0x5b);
Serial.write(0x41);
break;
case 0x8e: // Down
Serial.write(0x1b);Serial.write(0x5b);
Serial.write(0x42);
break;
case 0x8f: // Right
Serial.write(0x1b);Serial.write(0x5b);
Serial.write(0x43);
break;
case 0x90: // Left
Serial.write(0x1b);Serial.write(0x5b);
Serial.write(0x44);
break;
default:
if ( echo != 0){
tft.print(cc);
New_Line();
}
Serial.write(c);
break;
}
}
//Serial
if(Serial.available()){
off_Cursor();
c = cc = Serial.read();
switch(c){
case 0x0d: //CR
tft.setCursor( 0, tft.getCursorY());
// New_Line();
break;
case 0x0a: //LF
tft.println();
New_Line();
break;
case 0x08: //Back Space
Back_Space(1);
break;
case 0x7F: //Delete
Delete_Space();
break;
case 0x1b: //ESC Sequence
while(!Serial.available());
c = cc = Serial.read();
if(c != 0x5b ) break;
count = 0;
do{
while(!Serial.available());
c = cc = Serial.read();
if( c == 0x4b ){ //delete line
Clear_line(tft.getCursorX(),tft.getCursorY());
break;
}else if(c == 0x44){ //Number
if(count == 0) count = 1;
Back_Space(count);
break;
}else if( (c >= 0x30) && (c <= 0x39)){ //Number
count = count*10 + (c -0x30);
}else {
break;
}
}while(1);
break;
default:
tft.print(cc);
New_Line();
break;
}
}
if ( (millis()-c_time) > blink_speed ){
if(toggle){
tft.setTextColor(color[F_color]);
tft.print("_");
}else{
tft.setTextColor(color[B_color]);
tft.print("_");
}
Back_Space(1);
tft.setTextColor(color[F_color],color[B_color]);
toggle = !toggle;
c_time = millis();
}
}
void off_Cursor(){
tft.setTextColor(color[B_color]);
tft.print("_");
Back_Space(1);
tft.setTextColor(color[F_color],color[B_color]);
}
void Delete_Space(){
tft.print(" ");
jj = tft.getCursorX() - 12 * C_Size;
if( jj < 0) jj=0;
tft.setCursor( jj, tft.getCursorY());
}
void Back_Space(int pp){
jj = tft.getCursorX() - 6 * C_Size * pp;
if( jj < 0) jj=0;
tft.setCursor( jj, tft.getCursorY());
}
void New_Line(){
jj = tft.getCursorY();
if( C_Line < jj ){
if(jj >= End_Line){
tft.setCursor(0, 0);
jj = 0;
}
// DEBUG_PRINT(" Y=");
// DEBUG_PRINTLN(jj);
C_Line = jj;
Clear_line(tft.getCursorX(),jj);
}
}
void Clear_line(int xx, int yy){
tft.setTextWrap(LOW);
tft.print(F(" "));
tft.setCursor(xx,yy);
tft.setTextWrap(T_Wrap);
}
void F6_sw_echo(){
tft.fillScreen(color[B_color]); // Screen clear
tft.setCursor(0,0);
DEBUG_PRINTLN(F("F6 :Local Echo ON/Off"));
if( echo == 0) {
tft.println(F("Local Echo OFF"));
}else{
tft.println(F("Local Echo ON "));
}
tft.println();
tft.println(F("ESC->Exit"));
while(c != 0x1B) { // Wait ESC
while(!keyboard.available()) ; // wait key
c = keyboard.read();
tft.setCursor(0,0);
tft.println();
if(keyboard.available()) c = keyboard.read();
if(c != 0x1B) echo ^= 0x0001 ;
if( echo == 0) {
tft.println(F("Local Echo OFF"));
}else{
tft.println(F("Local Echo ON "));
}
}
refresh();
}
void F7_BoardRate(){
tft.fillScreen(color[B_color]); // Screen clear
tft.setCursor(0,0);
DEBUG_PRINTLN(F("F2 :BoardRate"));
Serial.end();
tft.println(" ");
tft.println("bps");
tft.println();
tft.println(F("ESC->Exit"));
while(c != 0x1B) { // Wait ESC
tft.setCursor(0,0);
tft.print(rate[boardrate]);
tft.println(" ");
while(!keyboard.available()) ; // wait key
c = keyboard.read();
if(keyboard.available()) c = keyboard.read();
if(c != 0x1B) boardrate += 1;
if(boardrate > 7) boardrate = 0;
}
Serial.begin(rate[boardrate]);
refresh();
}
void F5_Set_EEPROM(){
EEPROM.write(EE_boardrate,boardrate);
EEPROM.write(EE_F_color,F_color);
EEPROM.write(EE_B_color,B_color);
EEPROM.write(EE_rotation,rotation);
EEPROM.write(EE_C_Size,C_Size);
refresh();
}
void F1_Help(){
tft.fillScreen(color[B_color]); // Screen clear
tft.setTextWrap(T_Wrap); //Set Text Wrap around
tft.setCursor(0,0);
DEBUG_PRINTLN(F("F1 :Help"));
tft.println(F("F1 :Help"));
tft.println(F("F5 :Save EEPROM"));
tft.println(F("F7 :Board Rate"));
tft.println(F("F8 :Reverse Color"));
tft.println(F("F9 :Back color"));
tft.println(F("F10:Font color"));
tft.println(F("F11:Rotation"));
tft.println(F("F12:Font Size"));
tft.println();
tft.println(F("-ESC- for Exit from Help"));
while(c != 0x1B) { // Wait ESC
c = keyboard.read();
delay(200);
}
refresh();
}
void refresh(){
tft.fillScreen(color[B_color]); // Screen clear
tft.setTextWrap(T_Wrap); //Set Text Wrap around
tft.setRotation(rotation);
tft.setCursor(0,0);
tft.setTextColor(color[F_color],color[B_color]); tft.setTextSize(C_Size);
tft.println(F("CHUM_Terminal V0.1"));
if(rotation == 0 || rotation == 2 ){
End_Line = D_Hight;
}else{
End_Line = D_Width;
}
}