Wim Huiskamp
Hello World demo for Enhanced TextLCD lib.
The Enhanced TextLCD lib supports more display types than the original lib. Added support for User Defined Characters (UDCs), Backlight control and other features such as control through I2C and SPI port expanders and controllers with native I2C and SPI interfaces. See here for more info.
Diff: main.cpp
- Revision:
- 3:f238b4f7874f
- Parent:
- 2:c2978a6fa79a
- Child:
- 4:a3e4bb2053cb
--- a/main.cpp Sat Jun 28 14:28:08 2014 +0000
+++ b/main.cpp Sun Aug 24 09:01:56 2014 +0000
@@ -22,6 +22,7 @@
pc.printf("C: Backlight On\n\r");
pc.printf("D: Backlight Off\n\r");
pc.printf("P: init \n\r");
+ pc.printf("Q: contrast \n\r");
pc.printf("\n\r");
}
@@ -35,6 +36,7 @@
//DigitalOut cs(p8);
//DigitalOut cs2(p9);
+//4 Bit bus
//TextLCD lcd2(p15, p16, p17, p18, p19, p20, TextLCD::LCD16x4); // rs, e, d4-d7 =ok
//TextLCD lcd(p15, p16, p17, p18, p19, p20, TextLCD::LCD20x2); // rs, e, d4-d7 =ok
//TextLCD lcd(p15, p16, p17, p18, p19, p20, TextLCD::LCD20x4); // rs, e, d4-d7 =ok
@@ -42,44 +44,63 @@
//TextLCD lcd(p15, p16, p17, p18, p19, p20, TextLCD::LCD24x4D, TextLCD::KS0078); // rs, e, d4-d7 =ok
//TextLCD lcd(p15, p16, p17, p18, p19, p20, TextLCD::LCD40x2); // rs, e, d4-d7 =ok
+//I2C Expander PCF8574
//TextLCD_I2C lcd(&i2c_lcd, 0x40, TextLCD::LCD20x4); // I2C bus, PCF8574 Slaveaddress, LCD Type =ok
//TextLCD_I2C lcd(&i2c_lcd, 0x42, TextLCD::LCD20x4); // I2C bus, PCF8574 Slaveaddress, LCD Type =ok
-//Test Adafruit module, change #define
+// I2C Expander MCP23008, Adafruit module (change #define !!)
+//TextLCD_I2C lcd(&i2c_lcd, MCP23008_SA0, TextLCD::LCD16x3F); // I2C bus, MCP23008 Slaveaddress, LCD Type =Ok
//TextLCD_I2C lcd(&i2c_lcd, MCP23008_SA0, TextLCD::LCD20x4); // I2C bus, MCP23008 Slaveaddress, LCD Type =OK
-
-//TextLCD_I2C lcd(&i2c_lcd, 0x42, TextLCD::LCD16x2, TextLCD::WS0010); // I2C bus, PCF8574 Slaveaddress, LCD Type, LCD Ctrl
-
-//TextLCD_SPI lcd(&spi_lcd, p8, TextLCD::LCD24x4D, TextLCD::KS0078); // SPI bus, CS pin, LCD Type =ok
-//TextLCD_SPI lcd(&spi_lcd, p8, TextLCD::LCD40x2); // SPI bus, CS pin, LCD Type =ok
-//TextLCD_SPI lcd(&spi_lcd, p8, TextLCD::LCD40x4); // SPI bus, CS pin, LCD Type =ok
-
-//TextLCD_SPI lcd(&spi_lcd, p8, TextLCD::LCD40x4, TextLCD::HD44780); // SPI bus, CS pin, LCD Type, LCD Ctrl =ok
+//TextLCD_I2C lcd(&i2c_lcd, MCP23008_SA0, TextLCD::LCD16x2, TextLCD::WS0010); // I2C bus, MCP23008 Slaveaddress, LCD Type =Ok
+//TextLCD_I2C lcd(&i2c_lcd, MCP23008_SA0, TextLCD::LCD24x4D, TextLCD::KS0078); // I2C bus, MCP23008 Slaveaddress, LCD Type =ok
+//TextLCD_I2C lcd(&i2c_lcd, MCP23008_SA0, TextLCD::LCD16x1C); // I2C bus, MCP23008 Slaveaddress, LCD Type =Ok
+//SPI Expander
//TextLCD_SPI lcd2(&spi_lcd, p9, TextLCD::LCD8x2B); // SPI bus, CS pin, LCD Type =ok
//TextLCD_SPI lcd2(&spi_lcd, p9, TextLCD::LCD16x1C); // SPI bus, CS pin, LCD Type =ok
//TextLCD_SPI lcd2(&spi_lcd, p9, TextLCD::LCD16x2); // SPI bus, CS pin, LCD Type (VFD) =ok
+//TextLCD_SPI lcd(&spi_lcd, p8, TextLCD::LCD40x2); // SPI bus, CS pin, LCD Type =ok
+//TextLCD_SPI lcd(&spi_lcd, p8, TextLCD::LCD40x4); // SPI bus, CS pin, LCD Type =ok
+//TextLCD_SPI lcd(&spi_lcd, p8, TextLCD::LCD40x4, TextLCD::HD44780); // SPI bus, CS pin, LCD Type, LCD Ctrl =ok
+//TextLCD_SPI lcd(&spi_lcd, p8, TextLCD::LCD24x4D, TextLCD::KS0078); // SPI bus, CS pin, LCD Type =ok
+
+//WS0010
+//TextLCD_I2C lcd(&i2c_lcd, 0x42, TextLCD::LCD16x2, TextLCD::WS0010); // I2C bus, PCF8574 Slaveaddress, LCD Type, LCD Ctrl =Ok
+//TextLCD_SPI_N_3_10 lcd(&spi_lcd, p8, TextLCD::LCD16x2, NC, TextLCD::WS0010); // SPI bus, CS, LCDType=LCD16x2, BL=NC, LCDTCtrl=WS0010 =Ok
+
+//ST7032
//TextLCD_SPI_N lcd(&spi_lcd, p8, p9, TextLCD::LCD16x2, NC, TextLCD::ST7032_3V3); // SPI bus, CS pin, RS pin, LCDType=LCD16x2, BL=NC, LCDTCtrl=ST7032 =ok
-//TextLCD_I2C_N lcd(&i2c_lcd, ST7032_SA, TextLCD::LCD16x2, NC, TextLCD::ST7032_3V3); // I2C bus, slaveaddress, LCDType=LCD16x2, BL=NC, LCDTCtrl=ST7032
+//TextLCD_I2C_N lcd(&i2c_lcd, ST7032_SA, TextLCD::LCD16x2, NC, TextLCD::ST7032_3V3); // I2C bus, slaveaddress, LCDType=LCD16x2, BL=NC, LCDTCtrl=ST7032 =Ok
+
+//ST7036
+//TextLCD_I2C lcd(&i2c_lcd, MCP23008_SA0, TextLCD::LCD16x3G, TextLCD::ST7036_3V3); // I2C bus, MCP23008 Slaveaddress, LCD Type, LCDTCtrl=ST7036
+//TextLCD_SPI_N lcd(&spi_lcd, p8, p9, TextLCD::LCD16x3G, NC, TextLCD::ST7036_3V3); // SPI bus, CS pin, RS pin, LCDType=LCD16x2, BL=NC, LCDTCtrl=ST7036 =Ok
+
+//SSD1803A
+//TextLCD_I2C_N lcd(&i2c_lcd, SSD1803_SA1, TextLCD::LCD20x4D, NC, TextLCD::SSD1803_3V3); // I2C bus, slaveaddress, LCDType=LCD16x2, BL=NC, LCDTCtrl=SSD1803 =Ok
+TextLCD_SPI_N_3_24 lcd(&spi_lcd, p8, TextLCD::LCD20x4D, NC, TextLCD::SSD1803_3V3); // SPI bus, CS pin, LCDType=LCD20x4, BL=NC, LCDTCtrl=SSD1803 =Ok
//Test PCF2113
//TextLCD_I2C_N lcd(&i2c_lcd, PCF21XX_SA0, TextLCD::LCD12x2, NC, TextLCD::PCF2113_3V3); // I2C bus, slaveaddress, LCDType=LCD12x2, BL=NC, LCDTCtrl=PCF2113
//PCF2116
+//TextLCD_I2C_N lcd(&i2c_lcd, PCF21XX_SA0, TextLCD::LCD12x3D1, NC, TextLCD::PCF2116_5V); // I2C bus, slaveaddress, LCDType=LCD12x3D1, BL=NC, LCDTCtrl=PCF2116 (experimental)
//TextLCD_I2C_N lcd(&i2c_lcd, PCF21XX_SA0, TextLCD::LCD12x3D1, NC, TextLCD::PCF2116_3V3); // I2C bus, slaveaddress, LCDType=LCD12x3D1, BL=NC, LCDTCtrl=PCF2116
+//TextLCD_I2C_N lcd(&i2c_lcd, PCF21XX_SA1, TextLCD::LCD12x3D1, NC, TextLCD::PCF2116_3V3); // I2C bus, slaveaddress, LCDType=LCD12x3D1, BL=NC, LCDTCtrl=PCF2116
//TextLCD_I2C_N lcd(&i2c_lcd, PCF21XX_SA0, TextLCD::LCD12x4D, NC, TextLCD::PCF2116_3V3); // I2C bus, slaveaddress, LCDType=LCD12x4D, BL=NC, LCDTCtrl=PCF2116
//TextLCD_I2C_N lcd(&i2c_lcd, PCF21XX_SA0, TextLCD::LCD24x1, NC, TextLCD::PCF2116_3V3); // I2C bus, slaveaddress, LCDType=LCD24x1, BL=NC, LCDTCtrl=PCF2116
//TextLCD_I2C_N lcd(&i2c_lcd, PCF21XX_SA0, TextLCD::LCD24x2, NC, TextLCD::PCF21116_3V3); // I2C bus, slaveaddress, LCDType=LCD24x2, BL=NC, LCDTCtrl=PCF2116
//AIP31068
-TextLCD_I2C_N lcd(&i2c_lcd, AIP31068_SA, TextLCD::LCD16x2, NC, TextLCD::AIP31068); // I2C bus, slaveaddress, LCDType=LCD16x2, BL=NC, LCDTCtrl=AIP31068
-//TextLCD_SPI_N_3_9 lcd(&spi_lcd, p8, TextLCD::LCD16x2, NC, TextLCD::AIP31068); // I2C bus, slaveaddress, LCDType=LCD16x2, BL=NC, LCDTCtrl=AIP31068
-//TextLCD_SPI_N_3_10 lcd(&spi_lcd, p8, TextLCD::LCD16x2, NC, TextLCD::WS0010); // I2C bus, slaveaddress, LCDType=LCD16x2, BL=NC, LCDTCtrl=WS0010
+//TextLCD_I2C_N lcd(&i2c_lcd, AIP31068_SA, TextLCD::LCD16x2, NC, TextLCD::AIP31068); // I2C bus, slaveaddress, LCDType=LCD16x2, BL=NC, LCDTCtrl=AIP31068 =Ok
+//TextLCD_SPI_N_3_9 lcd(&spi_lcd, p8, TextLCD::LCD16x2, NC, TextLCD::AIP31068); // SPI bus, CS, LCDType=LCD16x2, BL=NC, LCDTCtrl=AIP31068 Niet Ok
+
+
int main() {
-// int i=0;
+ int i=0;
int count=0;
bool running=true;
char command;
@@ -106,17 +127,14 @@
// wait_ms(500);
// lcd.cls(); // Test timing
//}
-
lcd.setCursor(TextLCD::CurOff_BlkOn);
#if(0)
lcd.setUDC(0, (char *) udc_AA);
lcd.putc(0);
-
lcd.setUDC(1, (char *) udc_0E);
lcd.putc(1);
-
lcd.setUDC(0, (char *) udc_0);
lcd.putc(0);
lcd.setUDC(1, (char *) udc_1);
@@ -125,6 +143,28 @@
lcd.putc(2);
#endif
+#if(0)
+ lcd.setUDC(0, (char *) udc_None);
+ lcd.setUDC(1, (char *) udc_None);
+ lcd.setUDC(2, (char *) udc_None);
+ lcd.setUDC(3, (char *) udc_None);
+ lcd.setUDC(4, (char *) udc_None);
+ lcd.setUDC(5, (char *) udc_None);
+ lcd.setUDC(6, (char *) udc_None);
+ lcd.setUDC(7, (char *) udc_None);
+#endif
+
+#if(0)
+ lcd.setUDC(0, (char *) udc_All);
+ lcd.setUDC(1, (char *) udc_All);
+ lcd.setUDC(2, (char *) udc_All);
+ lcd.setUDC(3, (char *) udc_All);
+ lcd.setUDC(4, (char *) udc_All);
+ lcd.setUDC(5, (char *) udc_All);
+ lcd.setUDC(6, (char *) udc_All);
+ lcd.setUDC(7, (char *) udc_All);
+#endif
+
#if(1)
lcd.setUDC(0, (char *) udc_Bat_Hi);
lcd.setUDC(1, (char *) udc_Bat_Ha);
@@ -147,6 +187,7 @@
lcd.setUDC(7, (char *) udc_ch_mi);
#endif
+#if(0)
lcd.putc(0);
lcd.putc(1);
lcd.putc(2);
@@ -155,6 +196,7 @@
lcd.putc(5);
lcd.putc(6);
lcd.putc(7);
+#endif
#if(0)
lcd2.setUDC(0, (char *) udc_Bat_Hi);
@@ -186,8 +228,8 @@
if(pc.readable()) {
command = pc.getc();
- pc.printf("command= %c \n\r", command);
-
+// pc.printf("command= %c \n\r", command);
+ pc.printf("\n\r");
switch (command) {
case '0' :
pc.printf("Done\n\r");
@@ -228,11 +270,11 @@
lcd.putc(6);
lcd.putc(7);
- lcd.locate(4, lcd.rows()-1);
- lcd.putc(0);
- lcd.putc(1);
- lcd.putc(2);
- lcd.putc(3);
+// lcd.locate(4, lcd.rows()-1);
+// lcd.putc(0);
+// lcd.putc(1);
+// lcd.putc(2);
+// lcd.putc(3);
// lcd2.locate(4, lcd.rows()-1);
@@ -277,9 +319,23 @@
case '9' :
pc.printf("Text\n\r");
lcd.locate(0, 0);
- lcd.printf(" Hello mbed\n");
- lcd.printf(" Native I2C\n");
+
+#if(1)
+// 01234567890123456789
+ lcd.printf("Hello mbed\n");
+ lcd.printf(" SSD1803 Native I2C\n");
+ lcd.printf(" LCD20x4D\n");
+ lcd.printf("TextLCD lib");
+#endif
+
+#if(0)
+ lcd.printf("Hello mbed\n");
+ lcd.printf("I2C Exp MCP23008");
+ lcd.printf(" 16x3F (=24x2)\n");
+// lcd.printf(" OLED I2C Exp\n");
+// lcd.printf(" Native I2C\n");
// lcd2.printf("Hello mbed\n");
+#endif
#if(0)
// Needed for PCF2116C and PCF2116K
@@ -305,8 +361,20 @@
lcd.putc('1' ^ 0x80);
lcd.putc('1' ^ 0x80);
lcd.putc('6' ^ 0x80);
-#endif
-
+ lcd.putc('\n');
+
+ lcd.putc(' ' ^ 0x80);
+ lcd.putc('(' ^ 0x80);
+ lcd.putc('N' ^ 0x80);
+ lcd.putc('o' ^ 0x80);
+ lcd.putc(' ' ^ 0x80);
+ lcd.putc('A' ^ 0x80);
+ lcd.putc('c' ^ 0x80);
+ lcd.putc('k' ^ 0x80);
+ lcd.putc(')' ^ 0x80);
+ lcd.putc(' ' ^ 0x80);
+ lcd.putc(' ' ^ 0x80);
+#endif
break;
case 'A' :
@@ -348,11 +416,29 @@
// lcd._initCtrl();
break;
+
+ case 'Q' :
+ pc.printf("Contrast test\n\r");
+ for (i=0; i<64; i++) {
+ lcd.setContrast(i);
+ pc.printf("Contrast = %d\r", i);
+ wait(0.5);
+ }
+
+ pc.printf("\n\rMax Contrast\n\r");
+ wait(1);
+// lcd.setContrast(LCD_CONTRAST); //set default
+ lcd.setContrast(); //set default
+ pc.printf("\n\rContrast test done\n\r");
+
+ break;
+
default :
lcd.putc(command);
// lcd.putc(command ^ 0x80); // Needed for PCF2116C and PCF2116K
// lcd2.putc(command);
break;
+
} //switch
}//if
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| Export to desktop IDE |
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Repository details
| Type: | Program |
|---|---|
| Mbed OS support: | Mbed 2 deprecated |
| Created: | 29 Mar 2015 |
| Imports: | 3982 |
| Forks: | 10 |
| Commits: | 5 |
| Dependents: | 1 |
| Dependencies: | 2 |
| Followers: | 26 |
The code in this repository is Apache licensed.
HD44780 and compatible Text LCD controllers (4bit, I2C or SPI I/F)