Comments (19)
russhughes
commented on August 25, 2024
1
Thanks, glad you are finding it useful.
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russhughes
commented on August 25, 2024
The jpg method expects the filename of the jpg to draw.
Use:
display.jpg("dc540_logo.jpg", 0, 0) or display.jpg("dc540_logo.jpg", 0, 0, gc9a01.SLOW) if you do not have enough free memory to buffer the entire jpg.
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mytechnotalent
commented on August 25, 2024
The issue I am having is converting it to a conversion script to convert the jpg to .py file and use your display.jpg to call it.
peterhinch/micropython_data_to_py#1
I am unable to do this.
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russhughes
commented on August 25, 2024
You could use utils/imgtobitmap.py to create a python module from the jpg and use the bitmap method to display it.
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mytechnotalent
commented on August 25, 2024
Thanks @russhughes! Would the imgtobitmap.py literally make a image.py from from the .jpg?
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russhughes
commented on August 25, 2024
Yes, look at the updated examples/rp2/toasters for an example.
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mytechnotalent
commented on August 25, 2024
@russhughes the issue that I had with imgtobitmap.py was that the image was of poor color depth. The bits_per_pixel can go up to 8 (I believe) and it as I said does not appear well.
Is there a way to get a better quality image from imgtobitmap.py?
imgtobitmap image_file bits_per_pixel >image.py
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mytechnotalent
commented on August 25, 2024
@russhughes
I am attempting to use the imgtobitmap.py and I was able to get a memoryview object and a successful .py file however when I import the file and then try to use it.
>>> import dc540_logo
>>> display.bitmap(dc540_logo, 0, 0)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: can't convert NoneType to int
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mytechnotalent
commented on August 25, 2024
truncated contents of dc540_logo.py
WIDTH = 240
COLORS = 256
BITS = 460800
BPP = 8
PALETTE = [0x0000,0xa631,0x5cef,0xaa52,0x4942,0x4429,0xa210,0xbad6,0x9ef7,0x4c6b,0x1bef,0xd9e6,0xae73,0x58ce,0xb6b5,0x0742,0xb294,0x37ce,0xe641,0x2b6b,0x54ad,0x0321,0x508c,0x33ad,0x083a,0x2f8c,0xd5c5,0xd1a4,0xe839,0xca62,0xcd83,0x073a,0x0c5b,0x0319,0x0b5b,0x1bdf,0xec5a,0xe320,0x58ee,0x54cd,0x1cdf,0xb2c4,0x97de,0x0f7c,0x17be,0xaeab,0x139d,0x50b4,0x33cd,0x2fac,0xb6e5,0x93bd,0xe418,0x37e6,0xb3c5,0x4cb3,0x0419,0xcaaa,0x51c4,0xfcde,0xe841,0x8fa4,0x107c,0x8f9c,0xbddf,0x349d,0xfcee,0x18be,0x875a,0x2bab,0xf07b,0x8b83,0xf8bd,0xe420,0x2fc4,0x8b7b,0xca9a,0xf49c,0x8339,0xcec3,0xf8c5,0x2a8b,0x8762,0x8341,0xc6b1,0xec62,0xb7f6,0x34e5,0x4c9b,0xf0b3,0x32e5,0x6962,0xb3e5,0xf4cc,0xd083,0x69b2,0x27aa,0xf4a4,0xf3e4,0x299a,0xdbbe,0xf8ed,0x6662,0x8bb3,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000]
_bitmap =\
b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'\
...
BITMAP = memoryview(_bitmap)
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mytechnotalent
commented on August 25, 2024
@russhughes almost there! It is coming up now black and white instead of color but working!
from machine import Pin, SPI
from gc9a01 import GC9A01
import dc540_logo
spi = SPI(0, baudrate=40000000, polarity=0, sck=Pin(6), mosi=Pin(7))
display = GC9A01(spi, 240, 240, backlight=Pin(2, Pin.OUT), reset=Pin(14, Pin.OUT), dc=Pin(15, Pin.OUT))
display.init()
display.bitmap(dc540_logo, 0, 0, 0)
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mytechnotalent
commented on August 25, 2024
python imagetobitmap.py dc540_logo.jpg 7 >dc540_logo.py
This is the command I am using to make a .py.
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mytechnotalent
commented on August 25, 2024
Also getting memory allocation error.
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "main.py", line 10, in <module>
MemoryError: memory allocation failed, allocating 115200 bytes
>>>
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russhughes
commented on August 25, 2024
Can you post the dc540_logo.jpg file?
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mytechnotalent
commented on August 25, 2024
@russhughes https://ibb.co/6Y2Zhb6
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russhughes
commented on August 25, 2024
The bitmap requires more memory than was available. See the new pbitmap method that can draw a bitmap line by line that is larger than available memory. I was able to draw your converted logo with 8 bits per pixel. To have enough memory, you will need to precompile the converted bitmap module using mpy-cross.
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mytechnotalent
commented on August 25, 2024
Thanks @russhughes!
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mytechnotalent
commented on August 25, 2024
>>> import main
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "main.py", line 12, in <module>
KeyError: MAP
>>>
1 from machine import Pin, SPI
2 # from utime import sleep
3 from gc9a01 import GC9A01
4
5 import dc540_logo
6
7 # display config
8 spi = SPI(0, baudrate=40000000, polarity=0, sck=Pin(6), mosi=Pin(7))
9 display = GC9A01(spi, 240, 240, backlight=Pin(2, Pin.OUT), reset=Pin(14, Pin.OUT), dc=Pin(15, Pin.OUT))
10 display.init()
11
12 display.pbitmap(dc540_logo, 0, 0, 0)
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russhughes
commented on August 25, 2024
Sorry, the new firmware files were in different folders. Reflash with a firmware.bin from the latest update, and it should work.
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mytechnotalent
commented on August 25, 2024
Works great @russhughes! We are looking to use this driver on our local Defcon Chapter (not the official Defcon) for a badge. Last year we did a Tarot Badge and a Tree Of Life Badge before that. Your work is the best as I thank you greatly for your driver in C for MP.
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