raspberry pi

Do HDMI switchers work?

Episode 1482

Brian from Indiana
Raspberry Pi

Brian builds Raspberry Pi computers for everything from running DVRs (via Kodi) to routers. Leo says that Raspberry Pis are great and for $35, they're incredibly powerful. But his HDMI switch died recently, and it won't recognize his Pi anymore. Leo says that HDMI switchers are notoriously finicky. He'd be better off with an A/V receiver with multiple HDMI ports. It's the best way to go because the audio gets switched and stays in sync as well.

How can I have my Hue lights interact with my security cameras?

Episode 1428

Brian from Charleston, IN
Raspberry Pi

Brian has several Rasperry Pi computers for a DIY security camera network. Leo says he shouldn't DIY to save money anymore, he should just do it to have fun. Brian had an intruder (a critter) come in last night, and it wasn't lit very well. Leo says he'll want an infrared camera. Motion sensor lights would be a good idea as well. Leo says that half the fun of making is to figure out what's next and how to make it better.

Can I create a screen reader with Raspberry Pi?

Episode 1417

Todd from Indianapolis, IN
Raspberry Pi

Todd wants to try and create an affordable screen reader using a Raspberry Pi. Leo says that NVDA is a free one, and Orca will run on Debian. If he can get Debian to run on the Raspberry Pi, then he's in good shape. The chatroom says it can work, but he'll probably need more RAM. If he can, that would be a great open source project for the blind.

Can I Chromecast to several TVs at once over a network?

Episode 1409

Brian from Thousand Oaks, CA
Raspberry Pi

Brian wants to know if he can use a Chromecast to actually broadcast to a network. He has a company and he wants to be able to hold sales meetings with one computer running all TV screens and Chromecast content to all in the meetings. Leo says no. Chromecast is a 1:1 device and no computer can broadcast to more than one screen at once. He can use the Wavecom Jr., which is an RF broadcast solution that will enable him to broadcast via radio to each screen which has a receiver attached to it. That's one option.

Is the LattePanda processor good?

Episode 1389

Randal from Orange, CA
LattePanda

Randall wants to know if the LattePanda processor is a good one for creating small Raspberry Pi applications. Leo says it looks pretty good, with an intel Atom processor on it. It's a computer on a tiny board. It even comes with Windows 10. He's never used it, but it looks pretty good and seems to be the latest in a growing category. Atom processors can handle some pretty good loads.

How can I learn programming?

Episode 1351

Brennon from Dallas, TX
Learn to Program with Minecraft book

Brennon wants to learn how to program. Leo says learning how to write computer code will give him a deeper understanding on how computers work. This will take him from being merely a consumer, to being a maker. Minecraft can be a fun way to learn programming. He can even do it with a Raspberry Pi for $35. It comes with the software used to write programs and he can do it inside of Minecraft.

A great book is Learn to Program with Minecraft by Craig Richardson.

How can I stream with my Raspberry Pi?

Episode 1342

Don from Fullerton, CA
Raspberry Pi

Bret bought his first Raspberry Pi in a kit and it comes with Linux. Leo says yes, it's called Despian. He can't get his Chrome browser to stream certain websites because they are missing plugins, though. Leo says that's because there is an open system like Linux, some sites refuse to use it due to copyright and piracy worries. He should try using Plex or XBMC as a media server. It could do a better job of handshaking. NOOBS would allow him to choose a different OS like RaspBMC.