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I know there's a Teensy PS/2 library. However, I think it's only suitable for connecting PS/2 devices to the Teensy. How feasible is it to use a Teensy board to connect to retro computer with a PS/2 port but no USB port? From my understanding of the PS/2 protocol, I would just need to connect...

Sounds an interesting project! I'm not able to help much regarding how to achieve what you want, but hopefully I can clarify the question a little. So, as I understand it, you want the teensy connected to the audio shield, to play samples when you activate different sensors. Presumably you...

Great that you've full RGB control. The resolution is probably a bit low for Star Wars style holograms, but worth a try?

Looks very cool. Can all the LEDs be lit at once? This has interesting 3D visualisation possibilities.

There are several projects in the projects section of the Teensy website that modify big red buttons from Staples with a Teensy board. Wiring the switch to an input on the board should be easy, then just the keyboard library to send commands to open a browser and load the support page. You'll...

That's a cute idea! It would be fun to have a tiny screen built into the old computer case. I still want to fiddle with generating video signal from the Teensy itself. James

Thanks! I've been looking at composite video generation, and it does look feasible. There would be some timings to work out, but the 12-bit DAC on the Teensy 3.1 should make basic video output relatively straightforward. The tricky part would be to keep the Z80 emulator ticking over at the same...

I'm tied up with my current QL keyboard I wrote about elsewhere, but I'm thinking about feasibility of future projects. I'm wondering would it be possible to build an emulator for an 8-bit micro using nothing but a Teensy 3.1. The computers I'm interested in are the Sinclair ZX81 and Spectrum...

Teensy 3.1 has 256kb of Flash on board... that's not a huge amount, but you should only need a few seconds of samples, so you should be able to cram the samples you need in without needing external storage. Are you planning to incorporate accelerometers to detect the sabre's movement and play...

Nanronos, Yeah, it seemed so sexy when it launched, but turned out to be a bit of a sheep in wolf's clothing. You could actually say 32ish rather than 16ish bits. The 68008 was a full 32 bit processor inside, but crippled by an 8 bit data bus. The microdrives were the real let down, though...

Thanks, Paul, That's exactly what I have in mind. Does it make any difference which Teensy board I use? James

Sorry if I didn't give enough detail... The Sinclair QL was Clive Sinclair's attempt to produce a business computer, after his success with home computers like the ZX81 and ZX Spectrum. It had a price point of £399 in 1984 when PCs started around £2000, so was pretty revolutionary. It also...

I'm planning to use a Teensie to build a keyboard interpreter for a 1980s computer case (a Sinclair QL, if anyone is interested). The keys are mapped onto a 11x9 grid, so it should be a simple matter to connect one side of grid to output pins and the other to inputs and send appropriate USB...