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nv1t.github.io | ||
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danielmangum.com
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| | | | | The ESP32-S3 is a popular microcontroller (MCU) for a variety of reasons, such as its support for external pseudostatic RAM (PSRAM). One of its lesser known features is its Universal Serial Bus (USB) On-The-Go (OTG) controller. The previously released ESP32-S2, as well as the new ESP32-P4, also have USB OTG support, with the latter having two controllers. USB OTG devices can act as a device or as a host. This is a popular feature for smartphones, which, when attached to a laptop or desktop should act as a device, but may want to act as a host for some peripherals, such as a keyboard, that may be attached to it. | |
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neilzone.co.uk
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| | | | | Neil Brown's personal blog. | |
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arnon.dk
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| | | | | For a small project, I wanted to print some graphic receipts from a Raspberry Pi. I bought the cheapest one I could find on Amazon, the POS-5890K. (I paid ?43 on Amazon.de). It's not a very high quality device, but the price was hard to argue with. However, printing to it was a bit more [...] | |
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dmitrybrant.com
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