Popping up for some air....

Arduino Enigma
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Posts: 235

Popping up for some air.... Jul 30, 2017 15:10:52 GMT

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Post by Arduino Enigma on Jul 30, 2017 15:10:52 GMT

Been very busy figuring out how to get two Arduinos, normally a USB Slave device, to talk to each other. Found a USB Host Shield made by Gravitech for the Arduino Nano, it comes with no software whatsoever. After some experimenting with software from Circuits At Home and making some changes, got it to work. It is amazing, truly plug and play, connect an Arduino to the shield and it starts communicating instantly, unplug it and plug it again and it starts communicating again. This saved me from using a Raspberry PI as a USB host and having to deal with a way to avoid SD card corruption when power is removed.

Needless to say, this opens up a whole field of exciting possibilities. Ran out of IO pins and want to attach a thermal receipt printer to an Arduino thru USB, it is now possible. Currently waiting for a thermal printer from Sparkfun to come in the mail on Monday. www.sparkfun.com/products/10438

Source code for Arduino to Arduino communications:
github.com/arduinoenigma/UsbHostMorseLED

Demo video of an Arduino Nano blinking the morse code of letters received via USB from an Arduino Uno

http://instagram.com/p/BW2ita-hWNu

It's been a while since the last time I designed a PCB, here are the latest efforts.

Now, how do I create a film to lay over the lamp field, run a transparency thru a laser printer?

Arduino Enigma Machine Simulator: arduinoenigma.blogspot.com
8ECC 3913 0D3C 1617 050B 5676 0854 FD47 BA11 A198

lpaseen
Administrator

have you had your smile today?

Posts: 240

Popping up for some air.... Jul 30, 2017 15:39:11 GMT

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Post by lpaseen on Jul 30, 2017 15:39:11 GMT

I know you been busy with adding stuff to arduinoenigma, did see the progress earlier. Now when I see what your goal is I have added it to my "future upgrade" list for meinenigma. I have some other things on that list also like a real UHR box but I don't think that will happen this year. I'm lucky in that if I want to expand I not only have USB, I also have i2c ports I can use.

Personally I been busy with summer, family and getting kits of meinenigma ready, that's why I haven't done much in this forum. Next week I'm going to take a very close look at two original enigmas, M3 & M4 (thanks Richard Brisson) and measure some sizes. Once I verified things like distance between keys, lamps and so on I will send off to make more PCBs.

Arduino Enigma Full Member Posts: 235	Popping up for some air.... Jul 30, 2017 15:48:39 GMT Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Arduino Enigma on Jul 30, 2017 15:48:39 GMT Real excited about the possibility of having a working printer that can work for unmodified existing units. Your kit is looking good. In addition to own site, needs eBay, Tindie and possibly Etsy accounts.
	Arduino Enigma Machine Simulator: arduinoenigma.blogspot.com 8ECC 3913 0D3C 1617 050B 5676 0854 FD47 BA11 A198

lpaseen
Administrator

have you had your smile today?

Posts: 240

Popping up for some air.... Sept 16, 2017 16:41:32 GMT

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Post by lpaseen on Sept 16, 2017 16:41:32 GMT

I now have 7 kits ready for shipping but I'm on vacation the next week so I keeping stock level at 0 until I'm back home. While on VC I plan to catch up on things like this forum and take a look at that printer, maybe order some parts.

Post by Arduino Enigma on Jul 30, 2017 15:10:52 GMT

Post by lpaseen on Jul 30, 2017 15:39:11 GMT

Post by Arduino Enigma on Jul 30, 2017 15:48:39 GMT

Post by lpaseen on Sept 16, 2017 16:41:32 GMT