How to run 'numpy' to change that the image to binary bits

[destoriNAVY]

Two things that I cannot understand is

First, Is the virtual flash drive that you said 'PYBFLASH (E:)' ??

That drive capacity is barely 88.5Kb, but most jpg file's higher than 100Kb

I saw the 'https://github.com/remixer-dec/mpy-img-decoder' but I don't know how to using

Second, Is there no way to change image's each pixels to binary?



Ah the P1 is that It's in the lower right corner of the back of the kit. 'DFU is to the right of BLUE'


What you're talking about seems to be that you don't need to use DFU.


I'm the first to see someone kind like you

THANKS FOR YOUR ENDLESS REPLY

[jimmo]

First, Is the virtual flash drive that you said 'PYBFLASH (E:)' ??

That drive capacity is barely 88.5Kb, but most jpg file's higher than 100Kb

Yes, it will show up as PYBFLASH.

It's a microcontroller -- they only have very small amounts of flash and ram. If you want to store big files you'll need to either add external spiflash, or use an SDCard (this is why the pyboard has an SDCard slot).

I saw the 'https://github.com/remixer-dec/mpy-img-decoder' but I don't know how to using

I posted an example in your other thread with how to get a pixel.

Second, Is there no way to change image's each pixels to binary?

I think I'm not quite sure what you mean by this. What do you mean by binary? Generally when you decode an image you'll get R, G, B values for each pixel. i.e. three bytes per pixel.

The library above gives you the three bytes as a single integer (i.e. 0xrrggbb).

If you want to access individual bits in these bytes you can use regular bitwise operations (left/right shift, and, etc).

Ah the P1 is that It's in the lower right corner of the back of the kit. 'DFU is to the right of BLUE'

Ah yeah, you're right. Yep that's the one.

What you're talking about seems to be that you don't need to use DFU.

DFU is Device Firmware Update.

You'll need to use it if:
a) The firmware on your device is corrupted or modified and you want to get back to the official firmware.
b) You want to update to the latest official firmware
c) You want to put custom firmware onto the device (i.e. ulab).

I would always recommend checking that you have the latest version (v1.13) but other than that, you shouldn't need to update the firmware to do what you want here.

[dhylands]

DFU is Device Firmware Update.

You'll need to use it if:
a) The firmware on your device is corrupted or modified and you want to get back to the official firmware.
b) You want to update to the latest official firmware
c) You want to put custom firmware onto the device (i.e. ulab).

Personally, I only use the DFU pin when I have to. If I can get to a REPL, then I use the

Code: Select all

pyb.bootloader()

command to get into DFU mode.

With rshell (and the pyboard) you do the following to get into DFU mode:

Code: Select all

rshell repl '~ import pyb~ pyb.bootloader() ~'