We originally set out to do this because we were having problems getting an older model laser printer, specifically a Konica Minolta PP1350W, to work with MacOS High Sierra (10.13). With previous versions of MacOS we’d been able to connect the printer directly to the computer, and with some fiddling with drivers and other software, get it to work. But newer versions of MacOS seem to be far less tolerant of this, and we had a spare Raspberry Pi, so the idea came to us to use the Raspberry Pi as a bridge between the printer and any computers on the local network from which we wanted to be able to print. The bonus is that the printer is no longer tethered to a single machine, but instead can potentially be used by any computer on the local network.
You do not need to have a Raspberry Pi to make this work – any computer that can run Linux will do. And of course the Raspberry Pi or other Linux computer can be used for other purposes besides this. We do not guarantee that this technique will work for every older printer out there, but this will work with a surprising number of them.
The attached script will install shutdown and startup capability using a SPST NO momentary pushbutton
switch connected to GPIO header pins 5 and 6. Pressing the button on a running system will initiate
a graceful shutdown (shutdown -h now). Once shut down, pressing the button will restart the system.
1. Copy install and gpio-shutdown.dtbo to the Raspberry Pi.
… there is a new Raspberry Pi competitor that is quite affordable. In fact, some folks may view it as a Pi-killer. The $30 FriendlyElec NanoPi M1 Plus has an arguably superior design and layout, plus important integrated features like Wi-Fi and Bluetooth. It even has an IR receiver, onboard microphone, 8GB storage, and both power and reset buttons. Best of all? It is ready to run Debian, Ubuntu Core, and Ubuntu Mate from the start.
I realized after posting this that it is a repeat post, but those new to the Raspberry Pi might not have seen the original post, so here it is again:
SD cards are said to have a finite life. If you are planning on running a Raspberry Pi 24x7x365, there are some steps that you can take with GNU/Linux to extend the life of the card: here are some ideas.
Deleting your files isn’t good enough. Not even if you empty the recycle bin afterwards. Nor is formatting the drive. There are plenty of ways to recover data in such circumstances. Instead, you need a specialist program that can wipe the entire drive by storing random data onto every part of it, multiple times.
Whether you’re buying a laptop or a desktop today, it’s advisable to get a Solid State Drive (SSD) over a traditional Hard Disk Drive (HDD). SSDs are faster, more stable, and conserve less power, making them superior in every way. But that doesn’t mean SSDs are flawless.
UUGear 7-port Hub UUGear have just released a new 7-port USB hub add-on board for the Raspberry Pi. It is an updated version of the device they released in 2014. It has the same footprint as the Pi and can be attached to all Raspberry Pi versions which currently includes Models A, B, A+, B+, 2B, 3B and Zero. Unlike most other Pi add-ons boards this product is designed to be mounted underneath the Pi which keeps the top surface free for messing about with GPIO pins and the camera interface.