Author Topic: RF BUTTONS 1 AND 2  (Read 8935 times)

Offline oliverhowden

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on: July 30, 2008, 03:27:47 AM
Hey everyone.
I need to wirelessly press the 1 and 2 buttons on the controller to put it into pairing mode(or reset button)

I've bought this http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&rd=1&item=290155630820&ssPageName=STRK:MEWN:IT&ih=019

and i want to know what goes between that and the two points of the switch.
Whats the cheapest way?
a relay?
or do i just connect it straight up


Thanks.



Offline inio

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Reply #1 on: July 30, 2008, 08:56:55 AM
You'd be better off using the sync button instead of the 1 and 2 buttons, since that way you only need to close one connection.

If the outputs are active-high, you want a circuit like in the attachment

The 1k resistance is a minimum.  Maximum for that is probalby about 50k.
Transistor can be any NPN transistor, 2N3904 is the most common.

If the outputs are active-low, you can go even simpler.  Just a diode between the sync sense line (anode) and RF output (cathode).
« Last Edit: July 30, 2008, 09:02:08 AM by inio »



Offline oliverhowden

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Reply #2 on: July 30, 2008, 04:57:57 PM
Thank You!

If i understand coorectly.

You  would connect pin 10(or 11,12,13,) from this
http://www.e-madeincn.com/eBayImages/RM4SG-1.jpg

To RFOUT

and the GND to GND?

And the power and to a power source. But what about VT from the diagram i posted?
What does that connect to?

Thanks.



Offline inio

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Reply #3 on: July 30, 2008, 07:51:17 PM
Yep.

VT has me confused too.  I couldn't find any docs on the part - did it ship with a datasheet or anything?



Offline oliverhowden

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Reply #4 on: July 31, 2008, 03:31:11 AM
Item hasn't arrived yet.
They just sent me an email asking if i wanted 315Mhz or 433MHz,  and either Latch or Momentary.

i asked for 433Mhz Latch

and ill put a light on it so i can tell wether its on or off.

Thanks

Anyone know about the VT?



Offline benpaddlejones

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Reply #5 on: July 31, 2008, 05:26:53 AM
oliverhowden
I've bought this http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&rd=1&item=290155630820&ssPageName=STRK:MEWN:IT&ih=019

You are on some really cool virgin territory here!

I don't have the expertise to give you any detailed input, but what I feel is really important is; if you get this working could you PLEASE put a detailed description of part used and work performed to get this working. So others can follow in your footsteps.

May your wiimote be with you  :D

Benpaddlejones


See my full profile and links on my Google Profile: http://www.google.com/profiles/benpaddlejones


Offline inio

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Reply #6 on: July 31, 2008, 08:38:25 AM
I would have gone for momentary instead of latch.  With latch you'll need to press one button, then another one (to un-press the first) to sync.

For frequency, neither is actually legal to use in australia as far as I could tell.  433MHz is an unlicensed band in some parts of the world, but not in Australia (ITU region 3).



Offline oliverhowden

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Reply #7 on: August 10, 2008, 07:53:34 PM
Mom 433MHz on the way to AU!

any suggestions on extra things i should do?




Offline inio

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Reply #8 on: August 10, 2008, 07:56:58 PM
Don't hook up power and ground backwards ;)



Offline oliverhowden

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Reply #9 on: August 11, 2008, 01:14:15 AM
Hahaha, Good Idea :P

This is the Data sheet that they sent to me about the 433MHz RF thingys:P
Anything i should do?


Ill draw up some stuff in a minute to make sure i have the right idea of what im doing :)

Thanks