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 neilzone.co.uk
Using eSIMs with devices that only have a physical SIM slot via a 9eSIM SIM card with Android and Linux
| | arnon.dk
Printing to a POS-5890K thermal printer from a Raspberry Pi - Arnon Shimoni
1.7 parsecs away

Travel
| | 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 [...]
| | andybrown.me.uk
Process automation: relays and triacs | Andys Workshop
2.8 parsecs away

Travel
| | In my previous article I discussed how I intended to convert an old PC into a controller that I could use to automate the temperature control required to ferment and conditional beer. If you haven'...
| | danielmangum.com
USB On-The-Go on the ESP32-S3 ยท Daniel Mangum
2.1 parsecs away

Travel
| | 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.
| | bcarrigan.com
USB Business Card - Brian Carrigan
26.1 parsecs away

Travel
| The personal blog of Brian Carrigan, software and electronics engineer.