[GreenKeys] Old Dog with some New Tricks.

[MIKE MCAULEY]

Jeff,
Just thinking here, but if you have a TD on the ship, you could build a closed loop tape to run and make the machine(s) go clickity clack for visitors

Mike
 
 
  On Sun, Aug 25, 2024 at 9:03 PM, Jeffrey Golas<jeffg at junknet.net> wrote:   Ive actually been meaning to build something exactly like that for the ship, although it would be mostly local files as I have no internet acess there. I might have to try a bluetooth receiver though.

Jeff

> On Aug 25, 2024, at 10:53 PM, John Spigel <w1an.dxusa at gmail.com> wrote:
> 
> I thought I'd pass on a quick way to access ITTY and other streaming audio sources.
> 
> I've been developing several Python packages for TTY use on the Raspberry Pi. To make my tests across the room to my M15 I've been using bluetooth. Yes, the same bluetooth that's on your smartphone. Any audio streaming will play well from your phone including the familiar music from ITTY. No PC needed.
> 
> So what do you need?.. A small bluetooth audio module with a big price tag of two for $6.99. If you want 5, that'll be $10.99, please.
> 
> Amazon description:
> 
> "MakerHawk 2pcs Bluetooth Audio Receiver Board BT 5.0 Stereo Audio Amplifier 3.7-5V Car Speaker Amplifier for DIY"
> 
> You'll also need a 5V power supply with usb-c connector or cable, if you look close you can see solder pads on the device where wires can be tacked on. You probably already have a 1/8" audio patch cable and adapter to connect to your TU.
> 
> Just pair the device with your phone power up your gear and your good to go.
> 
> OK, Now the projects:
> I wanted to make demonstrations easier with my M15. So I made a portable cart with casters to make moving easier. This can be disassembled and go in the car. The "TU" is The Deramps Interface. The audio source can be either a local Raz Pi, or optionally bluetooth from a phone for ITTY. That's a fairly simple setup. No screen necessary. All the devces are velcroed to the rear of the cart along with a powerstrip.
> 
> The key to all of this is the Python code. The Raz Pi is headless. Three miniature, think C&K, ON-OFF-ON switches control up to 27 audio internet streams or .pix and .pox image files saved on the PI. The code reads the pseudo-binary on the Pi's GPIO pins and selects the source by shell scripts for each! When active there is an output GPIO pin for a relay.
> 
> Also, I have a Python Text formatter in the works  the Pi. This is to help make text files ready for baudot. It will take mixed text files scanned off the internet, news sources, Wikipedia, etc.. I hope to eventually use OCR to grab old articles, stories, from archives efficiently.
> 
> I have: Line length selectable, word wrap with automatic CR/LF insertion. Options to Replace LF with Space, LF with CR/LF, a Second CR, Letters after Space. Also insertion of a choice of Headers and Footers. I'm still trying to break it to see what bugs may develop. I've also got it saving the 00011, 01100, etc to a ".5bit" file. That's the best way to see the edits along with the text. And I may just use this to run GPIO pins.
> 
> Another in the works. Raz Pi with "Polar output" on two GPIO pins and one GPIO output pin for Autostart when FSK is active. Just add some external parts to drive a loop.
> 
> Too much to do. So little time. At my age.
> 
> 73, John W1AN
> 
> 
> 
> 
> 
> 
> 
> 
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