Author Topic: Teensy-LC  (Read 9468 times)

Siekmanski

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Re: Teensy-LC
« Reply #15 on: September 27, 2015, 05:42:48 PM »
Hi Dave,

Yeah, I'm very interested in Software Defined Radio.
A few years back I found this for € 4,95:
https://www.pollin.de/shop/dt/NTg5ODkyOTk-/Computer_und_Zubehoer/Hardware/Erweiterungskarten/TV_Radio_PCI_Karte.html

I used the Philips FM1216ME/I H-3 Tuner from this TV-/Radio PCI-Card and
an ATmega8 microcontroller and an USB FTDI chip to communicate via I2C commands with the Tuner.

These devices are very populair these days: RTL-SDR RTL2832U DVB-T Tuner Dongles
http://www.rtl-sdr.com/about-rtl-sdr/

It would be a nice challenge to write our own code for these dongles....

Hi farrier,

1GHz R8 ARM processor with 512MB of RAM, 4GB of NAND storage, and Wi-Fi and Bluetooth built-in.
With these specs and only $9, is this really possible ???
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dedndave

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Re: Teensy-LC
« Reply #16 on: September 27, 2015, 07:29:09 PM »
of course, we're supporting slave-labor wages - lol

i googled around a bit and found several SDR projects using these boards
as well as a bunch of other ham radio related stuff

Siekmanski

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Re: Teensy-LC
« Reply #17 on: September 27, 2015, 09:23:10 PM »
of course, we're supporting slave-labor wages - lol

 :biggrin:

It would take a lot of time to get in to this topic.
Just looked at the WinUSB api on MSDN to do bulk transfer.
Maybe it's possible to communicate that way via I2C commands to the RTL-SDR RTL2832U DVB-T Tuner Dongles.
I'll put it on my to-do list.... ( which is already too long :biggrin: )
« Last Edit: September 28, 2015, 04:34:37 AM by Siekmanski »
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dedndave

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Re: Teensy-LC
« Reply #18 on: September 27, 2015, 09:38:49 PM »
let me know how that goes....
i've used USB in serial mode, which is fairly fast - and easy to code

Siekmanski

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Re: Teensy-LC
« Reply #19 on: September 28, 2015, 04:43:57 AM »
I'll give it a try when I finished my other projects.
I've never done windows usb programming, only with an FTDI chip which is almost the same as USB in serial mode but a lot faster.
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farrier

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Re: Teensy-LC
« Reply #20 on: October 02, 2015, 05:48:24 AM »
Found another interesting "computer" which may actually ship. $22.50, chip and "dock"

https://onion.io/omega/

I've ordered and will report if results are positive.

farrier
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Farabi

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Re: Teensy-LC
« Reply #21 on: October 06, 2015, 07:04:52 PM »
If this one is real, and works, it will be fun to play with. WiFi, blutooth built in, lots of memory and I/O.  $9 US

http://makezine.com/2015/09/24/the-9-computer-is-shipping-today/

Sounds convincing, that`s a gateway to revolutioning our gadget, just as Raspberry before the coming of ARM era.
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