OSError: [Errno 2] ENOENT trying some examples

[hajulied]

I have an ESP32 WROOM with a display 1,69 ST7789. Installed is MicroPython v1.20.0-dirty on 2023-06-10; ESP32 GENERIC-7789 with ESP32

I tried some of the examples. "tiny_hello.py" and "chango.py" work fine.

"clock,py" gives the follwing error:

Traceback (most recent call last): File "", line 191, in File "", line 118, in main OSError: [Errno 2] ENOENT

line 118: "tft.jpg(image_file, 0, 0, st7789.SLOW)

"watch.py" is similar: File "", line 147, in File "", line 47, in main OSError: [Errno 2] ENOENT

line 47: tft.jpg(face, 0, 0, st7789.SLOW)

what can I do?

[russhughes]

It should be better documented. The ENOENT error means the program is looking for a file it can't find. The clock program reads images from a clock directory for the backgrounds. The directory is named clock_{width}x{height} where {width} and {height} are the width and height of the display in landscape mode. For example, a 320x240 display would read from a directory named clock_320x240. The repo has sample directories for 128x128, 160x128, 240x135, 240x240, and 320x240 displays. Create a directory for your screen size and copy the images into that directory. You will also need the pacifico40.py in the same directory as the clock.py file.

The watch.py program needs a face_{width}x{height}.jpg image in the same directory as the watch.py program. The repo has several sample face images you can use. The create_face_jpg.py file can create a custom-sized face image using a PC.

[hajulied]

Thank you, it works fine now for the above mentioned resolutions. Is it possible to extend the driver to a resolution of 240x280? My display (240x280) works with 240x240 and 320x240 but it does not fit.

[russhughes]

To add a custom-sized display, create an orientation table and pass it to the ST7789 method as the named parameter rotations. See the tft_config.py file in the examples/configs/adafruit_320x172/ directory for an example of a 320x172 display.

The orientation table lists tuples for each rotation used to set the MADCTL register, display width, display height, start_x, and start_y values. I can help you figure out the necessary values if needed. Can you give me a link to the display you are using?

[hajulied]

I was a few day on tour. Thank you for your tip. I bought the display in Germany at AZ... https://cdn.shopify.com/s/files/1/1509/1638/files/1_69inchTFT_datasheet.pdf?v=1694076008 I modified the adafruit example with "240, 280, 0,0 280, 240, 0,,0) and changed the resolution in SPI(... 240, 280) But then there were some unused rows at the bottom. Then I changed the values from 280 to 300 , and now it works fine an the whole screen is used. `` custom_rotations = [ (0x00, 240, 300, 0, 0), (0x60, 300, 240, 0, 0), (0xc0, 240, 300, 0, 0), (0xa0, 300, 240, 0, 0), ] def config(rotation=0, buffer_size=0, options=0): return st7789.ST7789( SPI(2, baudrate=40000000, sck=Pin(18), mosi=Pin(19), miso=None),
240, 300,