As it mention in the title, LCD is not displaying String it is displaying weird character. Here is the code:
#include <LiquidCrystal.h>
LiquidCrystal lcd(7, 8, 9, 10, 11, 12);
void setup() {
lcd.begin(16, 2);
Serial.begin(9600);
lcd.print("hello, world!");
}
void loop() {
lcd.setCursor(0, 1);
lcd.print(millis()/500);
}
and here is what the LCD diplays:
This can have several reasons:
It's also possible that you drive the display in wrong mode. The data connections can be half-bytes (4 bits) or bytes (8 bits) at once, ie you connect either 4 or 8 data cables. The driver must then set the correct mode, else the communication doesn't work correctly (ie if you set 8 bit mode and connect 4 cables, the upper 4 bits will have either random or 0 values).
Please check the hardware connections.
您似乎正在使用16x2显示器,即使您是特殊字符也应该能够显示,这是您在硬件中设置错误的原因
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