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Thread: prosimparts radio modules
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06-19-2012, 03:00 PM #11
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Re: prosimparts radio modules
That's why I am *so* glad with the Teensy and the X-plane plugin from Paul Stoffregen; using a MAX7219 I have created one NAV radio. I still need to figure out how to cascade 7219's... That'll take only 3 pins from the Teensy board.
More info: http://www.pjrc.com/teensy/td_libs_LedControl.html
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06-19-2012, 03:41 PM #12
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Re: prosimparts radio modules
I agree with Bas. Teensy works great with xplane. Difference between the teensy and pokeys is that the teensy works with serial data and pokeys do not. I find it easier to connect to the pokeys, but with a little effort a teensy should work well. check the arduino links about fsx on this forum and the freeware software from jim_nz.
Rough calculation of the costs using pokeys:
2x50 euro pokeys cards
4x30 euro display cards,
4x10 euro cable sets
150 euro prosim panels (1nav,1comms,1 adf)
= 410 euro. Thats roughly 130 euro per panel. Dangerously close to plug and play sets..
If one could use the Sismo board: 119 euro in stead of 2 pokeys and 4 displays.. Then its about 320 euros. I cant advise on the sismo board as i dont have one. But it does look better financially. Bas, how many 7219 can be attached to a teensy? A teeny is only 20$..
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06-19-2012, 03:56 PM #13
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Re: prosimparts radio modules
Yep, and the MAX7219's can be cascaded. Just found a schema of how to do it. What I'd like to do is design a PCB that holds multiple MAX7219's so I can build my MCP with one Teensy board (or two, to be able to use sufficient interrupt inputs for the encoders). I am now mainly focusing on my MCP delivery and outputs (all the digits hooked up).
Sammy-E, I suspect one can chain about 8 MAX7219's together. The PJRC site doesn't say how many can be chained together, but as always, it probably is an even number and a power of 2
Link to the schema: http://rgb.kitiyo.com/pics/rgb-ckt-pg1.png
Edit: should mention that I am no expert on electronics and am looking for a partner to design the PCB. If I do come up with something I will share the design.
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06-19-2012, 04:23 PM #14
Re: prosimparts radio modules
Hi,
how much do you pay for the MAX7219? it's ridiculous - 10€ each....
Take a look at my MCP - that's exactly what ARCOM is about^^ but cheaper, and the PCBs are already designed...
Marc"It is LEGEN... wait for it.... DARY" ARCOM_by_Marc
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06-19-2012, 04:44 PM #15
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Re: prosimparts radio modules
Ridiculously high or ridiculously low?
I paid 12,50 euro for the one I have at the moment. I'm quite satisfied with that, as the alternative that Sammy-E describes is much worse in terms of cost.
I'll have a look at Arcom, but I have already made up my mind I think. I'd rather live with self-inflicted constraints than those inflicted by somebody else's design. That having said, I'll look at your design
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06-19-2012, 05:02 PM #16
Re: prosimparts radio modules
12,50 € ...
that is TOO MUCH...
I'm sorry but that's ridiculously high...
Marc"It is LEGEN... wait for it.... DARY" ARCOM_by_Marc
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06-19-2012, 05:36 PM #17
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06-20-2012, 07:23 AM #18
Re: prosimparts radio modules
There are chips which cost about half of that and are just the same... I can sell you 6 pcs for 30€
Marc"It is LEGEN... wait for it.... DARY" ARCOM_by_Marc
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06-20-2012, 09:38 AM #19
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Re: prosimparts radio modules
Sorry, but could you substantiate your claims, please? You talk about the "cheapest solution, period" on your site, but I can't find any further information as to how or what. I might be overlooking something, of course.
With regard to the PCB, do you really expect people to pay for PCB layouts without knowing what they actually get? (just curious). Some pics would help you sell your product, no doubt.
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06-24-2012, 06:43 AM #20
Re: prosimparts radio modules
you know... i won't tell you exactly which chips I sell because then there would be no reason to buy them from me!!!
my system works and you're upset because you're not the first one to go that way...
btw.: you want pictures?
there you go:
http://x737cockpit.files.wordpress.com/2012/02/img_0441.jpg?w=627
http://x737cockpit.files.wordpress.c...2/img_0381.jpg
http://x737cockpit.files.wordpress.c...2/img_0435.jpg
http://x737cockpit.files.wordpress.c...2/img_0415.jpg
Marc
(i'm not haughty it's just when people start to get sanctimonious...)"It is LEGEN... wait for it.... DARY" ARCOM_by_Marc