How to make rf work...

Bluetooth, XBee, RF......

How to make rf work...

Postby grantt006 » Sat Mar 27, 2010 8:47 pm

hi...
i need help from anyone...
i have buy RF 315mhz module receiver and transmitter.
and i use ic TX2B and RX2B.. the datasheet can get here http://www.chipdocs.org/datasheets/datasheet-pdf/SILAN/RX-2.html
but then i can't get it to work after i connect the ic...
i already followed the spec given but still...
does RF module really need to have antenna 24cm?? so that it work..
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Re: How to make rf work...

Postby grantt006 » Mon Mar 29, 2010 8:24 am

sorry u can download the datasheet here http://www.datasheetarchive.com/TX-2B-datasheet.html# under 1.5-5.0V remote controller with five functions. For remote control car applications. can anyone help??? maybe the oscilator of the ic the problem or the rf module?? to be precise i try to connect the ic to the rf module just like the recomendation circuit in the datasheet...and i also have take a look into PT2262 and PT2272 but it suppose to have the same result...maybe because its need 4MHz oscillator like PIC...maybe??? anyone???
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Re: How to make rf work...

Postby waiweng83 » Mon Mar 29, 2010 10:24 am

hmm...never use it b4...What is your application actually?
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Re: How to make rf work...

Postby grantt006 » Mon Mar 29, 2010 11:57 am

well the ic says 1.5-5.0V remote controller with five functions and i'm trying to build my own toy car but with rx 315MHz module...what if i'm using PT2262and PT2272?? can it work...i want to know the connection with the RF module...
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Re: How to make rf work...

Postby grantt006 » Mon Mar 29, 2010 8:44 pm

sorry i did try pt22262 and pt2272 but only led at port vt ON...can i know the circuit for this ic?? thx...
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Re: How to make rf work...

Postby grantt006 » Tue Mar 30, 2010 4:53 pm

wah....
i've complete the circuit...and it work...
i use pt2262 and pt2272L4 i wonder what happen if use pt2272m4 :ugeek: :ugeek:
but i wonder why the ic tx2b and rx2b not working :?: :?:
now how am i suppose to control the motor?? is anyone know any circuit to control the circuit if can using ic not transistor :geek: :geek:
thx in advance if anyone know...
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Re: How to make rf work...

Postby yonghui » Wed Mar 31, 2010 9:50 am

thanks&regards,
yh
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Re: How to make rf work...

Postby sich » Wed Mar 31, 2010 6:49 pm

grantt006 WROTE:i use pt2262 and pt2272L4 i wonder what happen if use pt2272m4

The 'L' of PT2272L4 stands for latch while 'M' of PT2272M4 means momentary.
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Re: How to make rf work...

Postby royalstorm7 » Sat Sep 04, 2010 1:51 pm

hi...this is very simple application...just use a simple pic like pic16f84A to manipulate the signal to do the motor switching..use a simple h-bridge relay for foward reverse action..it cost u a very simple programme....have fun..

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