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Propeller Controlled VHF/UHF Handie Talkie Anyone? — Parallax Forums

Propeller Controlled VHF/UHF Handie Talkie Anyone?

Tim T.Tim T. Posts: 5
edited 2011-10-05 00:27 in Propeller 1
Check out this chip!
RDA1846

http://www.rdamicro.com/english/Product_view.asp?id=130

It is currently being used in the Baofeng UV-3R

http://blog.g4ilo.com/2011/05/baofeng-in-my-shirt-pocket.html

Any takers? This could be a fun project, but larger than I have time and skills for alone.

Let me know if you are interested!

Thanks, KK7TJ

Comments

  • Cluso99Cluso99 Posts: 18,069
    edited 2011-10-03 20:05
    Tim, welcome to the prop forum.

    This seems like a nice chip. I didnt give my info so no datasheet. Do you know the chips price? Sadly, I am flat out with other prop projects and I havent been on air since about 1976.
    Ray VK2ZTZ
  • Ken GraceyKen Gracey Posts: 7,401
    edited 2011-10-03 21:39
    Hey Tim T, the closest I've come to interfacing microcontrollers to 2 meter radios is this: http://forums.parallax.com/showthread.php?107472-Wireless-BASIC-Stamp-Communication-using-2-meter-HT-Radios

    Lots of fun with that simple little project.

    Ken Gracey
  • Tim T.Tim T. Posts: 5
    edited 2011-10-04 16:21
    Ken,

    Your design looks like you are interfacing with existing HT's. The project I am suggesting is to effectively create an HT from a propeller and this chip (and a few support parts of course).

    I don't yet have a price for the chip, but an entire HT built on this chip (Baofeng UV-3r) is only $45 including shipping.
    The datasheet was entertaining, but a bit light on the electronics... mostly info on interfacing a MCU via the bus. I assume they have additional info if you ask. I gave them my contact info and signed up for their free samples (5 chips). We'll see!
  • Cluso99Cluso99 Posts: 18,069
    edited 2011-10-05 00:27
    Tim T: I looked at the chips specs last night and also searched about the software used for the UV-3R. Looks like there is another software source too. The chip looks quite easy to control, given what it can do - either by I2C or SPI.

    Will be interested to see what price the chips are.
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