Revision 1:e045394f109e, committed 2022-01-20

Comitter:

awali

Date:

Thu Jan 20 09:26:21 2022 +0000

Parent:

0:824096cc05af

Commit message:

1

Changed in this revision

diff -r 824096cc05af -r e045394f109e LiquidCrystal_I2C.cpp
--- a/LiquidCrystal_I2C.cpp	Fri May 19 18:21:24 2017 +0000
+++ b/LiquidCrystal_I2C.cpp	Thu Jan 20 09:26:21 2022 +0000
@@ -21,7 +21,7 @@
 // LiquidCrystal constructor is called).
 
 
-I2C _i2c(PB_11, PB_10); // SDA, SCL
+I2C _i2c(D14, D15); // SDA, SCL
 
 LiquidCrystal_I2C::LiquidCrystal_I2C(unsigned char lcd_addr, unsigned char lcd_cols, unsigned char lcd_rows, unsigned char charsize)
 {
@@ -48,11 +48,13 @@
     // SEE PAGE 45/46 FOR INITIALIZATION SPECIFICATION!
     // according to datasheet, we need at least 40ms after power rises above 2.7V
     // before sending commands. Arduino can turn on way befer 4.5V so we'll wait 50
-    wait_ms(50);
+   // wait_ms(50);
+    wait_us(50000);
 
     // Now we pull both RS and R/W low to begin commands
     expanderWrite(_backlightval);   // reset expanderand turn backlight off (Bit 8 =1)
-    wait_ms(1000);
+   // wait_ms(1000);
+    wait_us(10000);
 
     //put the LCD into 4 bit mode
     // this is according to the hitachi HD44780 datasheet

diff -r 824096cc05af -r e045394f109e main.cpp
--- a/main.cpp	Fri May 19 18:21:24 2017 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,33 +0,0 @@
-#include "mbed.h"
-#include <LiquidCrystal_I2C.h>
-
-// Set the LCD address to 0x27 for a 16 chars and 2 line display
-LiquidCrystal_I2C lcd(0x4E, 16, 2);
-
-
-
-int main()
-{
- 
-    // initialize the LCD
-    lcd.begin();
-
-    // Turn on the blacklight and print a message.
-    lcd.backlight();
-    lcd.print("Hello, world!");
-    
-    while (1) {
-        /*
-        // Read temperature register
-        data_write[0] = LM75_REG_TEMP;
-        i2c.write(LM75_ADDR, data_write, 1, 1); // no stop
-        i2c.stop();
-        wait(0.01);
-        i2c.read(LM75_ADDR, data_read, 2, 0);
-        i2c.stop();
-*/
-        wait(0.01);
-    }
- 
-}
- 

diff -r 824096cc05af -r e045394f109e mbed.bld
--- a/mbed.bld	Fri May 19 18:21:24 2017 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,1 +0,0 @@
-http://mbed.org/users/mbed_official/code/mbed/builds/6c34061e7c34
\ No newline at end of file