How to upload custom images to the Vex V5 brain?

[Drennen1]

I tried the search bar but couldnt find a clear answer. Im confused on what I need to type to have my code make the brain read the Jpeg or PNG file. I also was curious what type of SD card to buy to upload the file to the brain? Any tips or even a link to a solution would help.

[Creation]

To make use of the SD Card slot, you need to have a MicroSD Card formatted with the FAT32 file system. The V5 Brain only supports .bmp and .png files, so you won’t be able to draw any JPEG images.

C++

// image.png is in the root directory of the SD card
// 0, 0 are the x and y pixel coordinates where the image will be drawn
Brain.Screen.drawImageFromFile("image.png", 0, 0);

Python:

brain.screen.draw_image_from_file(“image.bmp”, 0, 0)

[Drennen1]

Thank you so much for the info i will try it today!

[20394823498]

Just going to add this in here:

If you look in the thread I have linked below, you do not exactly have to load a image from a file. You do have the option to draw a image from a buffer.

To convert a png to a buffer, use this link: Online image converter - BMP, JPG or PNG to C array or binary | LVGL. Make sure to set the color format to CF_RAW so that it works correctly. Then make a uint8_t array with the contents of the conversion as the array values. Then simply pass that to the brain::lcd::drawImageFromBuffer function and voila.

If any of what I just explained confuses you, or you want further explanation, please look in the thread I have linked below.

Drawing images from memory/buffer

@jpearman I wrote a very primitive converter with python, but I’m still unable to get the image on the screen. I fed the bmp version of the image into the program and the output is the same as the output from the LVGL image converter. Do you know what’s wrong with the code? The code is as follows: import binascii output = [] with open("New_Project_(1).bmp", "rb") as f: byte = f.read(1) while byte != "": output.append("0x" + binascii.hexlify(byte) + ",") #This is probably not t…

[evarikkad_thecoder]

Is it possible to directly upload a picture into the brain for it to access?

[J.4]

If you don’t want to use a MicroSD Card, you may want to check this out:

Introducing a New Way to Display Images on Your Vex V5 Brain – No Micro SD Card Required!

Hey fellow Vex enthusiasts, I’m thrilled to share with you all a project born out of necessity and innovation. Like many of you, I’ve faced the frustration of wanting to personalize my robot with custom images on the V5 Brain’s display, only to be hindered by the lack of a micro SD card. This challenge inspired me to create a solution that resolves this issue. I proudly present to you a free open-source web app that generates C++ code for displaying images directly on your Vex V5 Brain’s scree…