I got an 20x4 Display from Displaytech and want to connect it with my Arduino 101. Hardware is 100% correct but there must be a Software fail. I took the simple Hello world from the Arduino page but nothing happens. I can see the Columns and rows but nothing is written there.
programm:
Quote
❝#include <LiquidCrystal.h>
// initialize the library with the numbers of the interface pins
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
void setup() {
// set up the LCD's number of columns and rows:
lcd.begin(20, 4);
// Print a message to the LCD.
lcd.print("hello, world!");
}
void loop() {
// set the cursor to column 0, line 1
// (note: line 1 is the second row, since counting begins with 0):
lcd.setCursor(0, 0);
// print the number of seconds since reset:
lcd.print(millis() / 1000);
}
. . . Hardware is 100% correct but there must be a Software fail. . . .
I seem to remember seeing that phrase somewhere else.
If you look through some of the previous forum posts you will find that it is virtually impossible for us to help you without more information.
At a bare minimum we would need a photograph of your actual setup. Don't bother with a picture of what you are attempting to do, we need to see your actual components.
Also - When posting code you need to use the code tag </> not a quotation. If you don't understand what this is you could check out the forum instructions.
#include <LiquidCrystal.h>
// initialize the library with the numbers of the interface pins
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
void setup() {
// set up the LCD's number of columns and rows:
lcd.begin(20, 4);
// Print a message to the LCD.
lcd.print("hello, world!");
}
void loop() {
// set the cursor to column 0, line 1
// (note: line 1 is the second row, since counting begins with 0):
lcd.setCursor(0, 0);
// print the number of seconds since reset:
lcd.print(millis() / 1000);
}
I can be sure that the Hardware is correct because i have to but it on like an 16 x 2 Display and I tried it with one.
Because of this i think there is a problem with the Intel controller, that he can't understand the normal Arduino programming, but i didn't find anything about this and hoped that one of you know something about.
If you want the Display name its the CP594V-0 (Displaytech 204A).
I did the connection like the one of the pic. I know its an 16x2 Display and an Arduino Uno in the pic but my oppenents have the same task and work nearly the same.
The resistance is the same size and the potentiometer is 10k which works right cause it is for the contrast and i can see the contrast right. I would make you a pic but i got no cable to connect computer and smartphone at the moment and from the smartphone it doesn't work to upload.
I repeat: "At a bare minimum we would need a photograph of your actual setup. Don't bother with a picture of what you are attempting to do, we need to see your actual components."
Can you email the picture from your phone to your computer?
