Schlagwort-Archive: Raspberry

Build Yourself a Raspberry Pi Zero Availability Checker powered by a Raspberry Pi

The Raspberry Pi Zero is still very hard to get – it seems to be constantly out of stock.
So I made Raspberry Pi powered* Raspberry Pi Zero Checker: It scans Adafruit, Pimoroni and The Pi Hut for strings indicating stock and warns you with an annoying ‚alarm‘ sound. I also have a PHP version for my web server that also works very well.

*Note: any computer will do – but a Pi can be left on all the time without annoying fan noise or high power bill.

This is a very simple project both soft- and hardwarewise: Get your Pi online, automatically start the script on boot (rc.local or systemd) and plug in some speakers.
If you do not want to get woken up in the middle of the night, you might want to add some code to not trigger the alarm after 22.00h for example.
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Composite USB Gadgets on the Raspberry Pi Zero

RPi_Zero_multi-usb
original by jsmith7342, cc by-sa, others cc0/PD

Hi, Hackaday! 😀

Want your Pi Zero to emulate a keyboard, ethernet adapter, serial device, mass storage, and many more at the same time? This tutorial is for you!

The Pi Zero is all the rage – and I too am working on a Zero-based project.
[LadyAda] and [gbaman] both have written tutorials on the old series of drivers, g_{hid,ether,serial,*}. Those are not flexible at all, only allow for one loaded at each time and in case of the hid-gadget even require you to modify and recompile the kernel module.

LibComposite solves those problems by putting the configuration into userland (ConfigFS).
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