I got this screen along with the other 1601 panel. I thought it was just some normal 12864 with non-square pixel, but it was cheap, so...

When I got it, I noticed the IC is not ST7565 at all. Then by looking at the glass, the display area is square, and all pixels are square, so that's definitely not 12864. Probably something like 128128.

So I determined the resolution by simply counting (120x120), then... just typical method, as I have covered before. The controller is ST7571. It supports 4 level greyscale, which is nice. For some reason I couldn't got it work in 3-line SPI mode, it could be initialized but no data could be written. So I ended using 4-line SPI mode.

The result is as following. The screen has dual color backlight (orange + white). I modded one of the screen to green backlight, and that's quite interesting as well.

Basic Information

• Model: DO0170
• Type: Monochrome graphics dot-matrix
• Mode: STN Negative
• Resolution: 120x120
• Greyscale: 4-level (2bpp)
• Controller: ST7571
• Size: 37.9x37.9(mm)

Driving Information

Module Pinout

1. GND
2. VDD
3. VDD
4. GND
5. nBL-AW
6. nBL-AA
7. MOSI
8. RS
9. GND
10. SCK
11. GND
12. nCS
13. KEY-COM
14. KEY1
15. KEY2
16. KEY3
17. KEY4
18. nRST
19. VCC
20. GND

Panel Pinout

1. Unknown
2. Unknown
3. Unknown
4. Unknown
5. Unknown
6. Unknown
7. Unknown
8. GND
9. VDD
10. VDD
11. D7/MOSI
12. D6/SCK
13. D5
14. D4
15. D3
16. D2
17. D1
18. D0
19. nRD
20. nWR
21. A0
22. nRST
23. nCS
24. PS1
25. PS0
26. GND

Initialization Sequence

LCD_WriteCmd(0x2c);
Delayms(200);
LCD_WriteCmd(0x2e);    
Delayms(200);
LCD_WriteCmd(0x2f);    
Delayms(10);

LCD_WriteCmd(0xae);
LCD_WriteCmd(0x38);
LCD_WriteCmd(0xb8);   
LCD_WriteCmd(0xc0);  
LCD_WriteCmd(0xa0);  

LCD_WriteCmd(0x44);
LCD_WriteCmd(0x00);
LCD_WriteCmd(0x40);   
LCD_WriteCmd(0x00);  

LCD_WriteCmd(0xab);
LCD_WriteCmd(0x67);
LCD_WriteCmd(0x24);   
LCD_WriteCmd(0x81);  
LCD_WriteCmd(0x36); 

LCD_WriteCmd(0x54);
LCD_WriteCmd(0xf3);
LCD_WriteCmd(0x04);   
LCD_WriteCmd(0x93);  

LCD_WriteCmd(0xa7);

LCD_WriteCmd(0xaf);