sam_des
Senior Member
 Offline
Posts: 253
Thank You
-Given: 124
-Receive: 146
|
 |
« on: January 14, 2010, 06:06:39 18:06 » |
|
Hello,
I am currently trying to do RF comm. between 2 micros. My local shop offered me a TX-RX module pair. I tried to find some more data about these, but haven't got much.
The TX module is numbered R433M & has no visible IC & has pin config - GND, DATA, VCC, ANT.
The RX module has an IC- HIMARK RX3400-LF & has pin config -GND, DATA, DATA, +5V, +5V, GND,GND,ANT.
I figured out that both are 433MHz modules. But I need more information, especially datasheet and app. notes, so that I can start experimenting with modules. Any examples will be an added advantage.
regards,
sam_des
|
|
|
|
|
Logged
|
Never be afraid to do something new. Remember Amateurs built the Ark, Professionals built the Titanic !
|
|
|
nighthunter
Newbie
Offline
Posts: 31
Thank You
-Given: 11
-Receive: 18
|
|
« Reply #1 on: January 14, 2010, 07:13:22 19:13 » |
|
here are the datasheets, i used google, it took 10 secs to find the specs, & here is some discussion about experimenting using RX/TX modules http://www.8051projects.net/forum-t20068.html |
|
|
|
« Last Edit: January 14, 2010, 07:16:38 19:16 by nighthunter »
|
Logged
|
|
|
|
maduran
Newbie
Offline
Posts: 22
Thank You
-Given: 492
-Receive: 9
|
|
« Reply #2 on: January 14, 2010, 07:48:40 19:48 » |
|
|
|
|
|
|
Logged
|
|
|
|
cipiloi
Active Member
Offline
Posts: 158
Thank You
-Given: 221
-Receive: 22
|
|
« Reply #3 on: January 14, 2010, 08:13:01 20:13 » |
|
|
|
|
|
|
Logged
|
|
|
|
Jeckson
Active Member
Offline
Posts: 110
Thank You
-Given: 54
-Receive: 6
|
|
« Reply #4 on: January 15, 2010, 01:38:18 13:38 » |
|
Hai
Great sonsivri
Also I'm looking TRX module.At frecuencies 50-60-70Mhz to get long distance and almost silent here.
jeckson
|
|
|
|
|
Logged
|
|
|
|
king
Junior Member
Offline
Posts: 84
Thank You
-Given: 2
-Receive: 21
Jack of All But Master of One
|
|
« Reply #5 on: January 16, 2010, 10:37:12 10:37 » |
|
Hi!
Why don't you use TRW24G modules to Transmit and Receive Data at the Distance of 180 Meters,
also the complete project has been uploaded on Sonsivri (Projects)
|
|
|
|
|
Logged
|
|
|
|
Jeckson
Active Member
Offline
Posts: 110
Thank You
-Given: 54
-Receive: 6
|
|
« Reply #6 on: January 16, 2010, 02:00:10 14:00 » |
|
Hai
King
>Why don't you use TRW24G modules to Transmit and Receive Data at the Distance of 180 Meters
Too short distance.
Something with 500mW but have distance 100Km ~ and the characteristic between HF and VHF to avoid F and E layer problem(depends on sun and day).
Regards
Jeckson
|
|
|
|
|
Logged
|
|
|
|
manish12
Active Member
Offline
Posts: 163
Thank You
-Given: 44
-Receive: 39
|
|
« Reply #7 on: January 16, 2010, 03:53:52 15:53 » |
|
i generally use 4 sw rf module for transmitting upto 500meters ,
it is great to transmit without error ,
logic is >>
4 sw has upto 16 combination
convert the hex number into decimal , use 1-A for 0-9 and use B-F for transmitting start and stop of byte .
it is also use in bi direction communication ,
tested ok... no doubt
if find helpful press tanks button
>> i always face an environment, which demand must design with available resources
|
|
|
|
|
Logged
|
|
|
|
Jeckson
Active Member
Offline
Posts: 110
Thank You
-Given: 54
-Receive: 6
|
|
« Reply #8 on: January 21, 2010, 01:51:43 13:51 » |
|
Manish12
500 meters to short...
|
|
|
|
|
Logged
|
|
|
|
manish12
Active Member
Offline
Posts: 163
Thank You
-Given: 44
-Receive: 39
|
|
« Reply #9 on: January 21, 2010, 03:15:31 15:15 » |
|
a cheap walkies tokes may solve your problem for 10-20km
if you need more than that , just buy a fm transmitter 4-5w
|
|
|
|
|
Logged
|
|
|
|
oldvan
Senior Member
Offline
Posts: 372
Thank You
-Given: 154
-Receive: 107
If the van is a Rockin'...
|
|
« Reply #10 on: February 04, 2010, 09:32:38 21:32 » |
|
a cheap walkies tokes may solve your problem for 10-20km
Impressive range for cheap walkie-talkies, where can I buy such a pair? Any of the cheap ones I've encountered claim 2 km range and are somewhat likely to work for about a city block on a good day. |
|
|
|
|
Logged
|
Give a man a fish and you feed him for a day.
Teach a man to fish and he will sit around in a boat drinking beer all day.
|
|
|
|
