Firstly, we’ll need some images to build up our bitmap. You can draw your own if you like, but we took a look at opengameart.org to find some we could use; we came across an adorable otter – it’s the otters.png image you need. You can download this as a PNG, but we need a bitmap, so
you’ll need to open it in a graphics program and save it in BMP format. We need this file as otters.bmp in an images folder on the CircuitPython device.
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