Diff: main.cpp

Revision:

0:18811ba92e94

Child:

1:60e68d110d01

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Jul 27 05:07:14 2020 +0000
@@ -0,0 +1,54 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2019 ARM Limited
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "mbed.h"
+#include "TextLCD.h"
+#define MIN_V 2.23
+#define MAX_V 3.3
+//0.107
+I2C i2c_lcd(p9, p10);
+TextLCD_I2C lcd(&i2c_lcd, (0x27 << 1), TextLCD::LCD16x2, TextLCD::HD44780);
+
+int b = 0;
+AnalogIn battery(p15);
+
+void change(){
+        while(true){
+            //lcd.setBacklight(TextLCD::LightOn);
+            b = (int)((i - MIN_V)/0.107 + 0.5)*10;
+            lcd.locate(0,0);
+            lcd.printf("Battery:%3d%%",b);
+            thread_sleep_for(200);
+            /*for(double i = MAX_V;i > MIN_V;i -= 0.05){
+                b = (int)((i - MIN_V)/0.107 + 0.5)*10;
+                //printf("i = %.2f,b=%d%\r\n",i,b);
+                lcd.locate(0,0);
+                lcd.printf("Battery:%3d%%",b);
+                if(b <= 30){
+                    for(int j = 0;j*(2*b+20) < 200;j++){
+                        lcd.setBacklight(TextLCD::LightOff);
+                        thread_sleep_for(b+10);
+                        lcd.setBacklight(TextLCD::LightOn);
+                        thread_sleep_for(b+10);
+                    }
+                }else{
+                    thread_sleep_for(200);
+                }
+            }*/
+        }
+        
+
+}
+
+int main()
+{
+    //Thread thread(change,NULL,osPriorityNormal);
+    Thread thread;
+    thread.start(change);
+
+    while (true) {
+        wait(1);
+    }
+}