I was trying to print a char variable on the arduino's LCD but I can not, always from the error when I try to compile the code. I have already pulled the LCD library and the line I am trying to print is the following:
lcd.print("%c",letra);
What am I doing wrong? I thank you in advance!
One thing that is important to know about LCD displays is that they have an internal memory. The Arduino simply activates the read or write mode and sends a memory address with the character you want to print through the bus. The following figure shows the available characters:
If you want to print a different character , there is another memory where you send an array of bytes containing the active and inactive pixels that will form your new character. As in the figure below:
Asforyourproblem,Ithinkthefollowinglinesofcodecansolve:
//charvariavel='a';//lcd.print(char(variavel);//Istodeveriafuncionar//lcd.print((char)223);//Istotambémcharcaractere='b';lcd.print(caractere,BIN);//ou...intcharcode=65;lcd.print(charcode);SincetheLCDreceivesabinarydata,youmustenterthisinformationthroughthe"BIN". So the Arduino will send the binary value corresponding to the character through the bus.