DOG-M  LCD - Which pins are which?

Forum 2005-2010 (read only) Hardware Interfacing
1

Hello,

I bought a DOG-M ( the DOGM162W-A) LCD display and would like to experiment with the LCDdogmSPI library. But somehow I can't figure out which pins on the display are which.

In the datasheet it looks like this:

But the display itself looks like this with all the pins in one line:

It would be really nice if someone could tell me how to relate the wiring diagram to the actual pins on the display.

Thank you in advance

2

Look at the last page, bottom, left of the data sheet. http://www.lcd-module.de/eng/pdf/doma/dog-me.pdf The pin numbers 21 through 40 appear to run right to left when looking at the face of the module.

3

Thanks for the answer. I figured out the pins.
But somehow it's still not working. Absolutely nothing happens.

Here's a link to the library: lcddogmspi/LCDdogmSPI.cpp at 46ac4fade33dc6e19e5a397c45efad81a238580e · halfbyte/lcddogmspi · GitHub

And here's the code I'm using which is the example code, only I changed the number of lines because the display only has two:

#include <LCDdogmSPI.h>

#define CSB_PIN 10
#define RS_PIN 9
#define LCD_LINES 2

// This initializes for a 3 LINES display

LCDdogmSPI lcd = LCDdogmSPI(LCD_LINES, CSB_PIN, RS_PIN);

void setup() {
  lcd.init();
  lcd.cursorTo(2,7);
  lcd.println("theqtisch");
}

void loop() {
  delay(10); 
}

And here's how I wired the pins to the Arduino:

Pin1 - RESET -> 5V
Pin2 - RS -> Pin 9
Pin3 - CSB -> Pin 10
Pin4 - R/W -> 5V
Pin5 - E -> 5V
Pin6 - D0 -> 5V
Pin7 - D1 -> 5V
Pin8 - D2 -> 5V
Pin9 - D3 -> 5V
Pin10 - D4 -> 5V
Pin11 - D5 -> 5V
Pin12 - D6 (CLK) -> 5V
Pin13 - D7 (SI) -> 5V
Pin14 - VSS -> GND
Pin15 - VDD -> POWER
Pin16 - VIN -> 5V
Pin17 - VOUT -> 5V
Pin18 - PSB -> GND
Pin19 - CAP1P -> not connected
Pin20 - CAP2P -> not connected

(the 4 pins on the bottom are for the backlight and are currently not connected because the display also works without them)

I really don't know what I did wrong and would be really glad if someone could help. :slight_smile: