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shetye
Joined: 22 May 2007
Posts: 7
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 25 May 2007 16:28 SM6136B Transmitter (?) seen in a Toy Car Remote |
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Today I saw SM6136B IC inside the remote of a toy car. I guess that toy is made in China. I tried to see the information about this chip on net, but could not get anything which will show how to use this IC.
In fact I want a cheapest Transmitter/Receiver IC/Module in India. Can anybody suggest any?
TIA,
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kokokiki
Joined: 23 Oct 2001
Posts: 16
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| 25 May 2007 16:40 Re: SM6136B Transmitter (?) seen in a Toy Car Remote |
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| That is a five key encode IC for remote car toy.
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shetye
Joined: 22 May 2007
Posts: 7
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| 12 Jun 2007 14:04 Re: SM6136B Transmitter (?) seen in a Toy Car Remote |
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| kokokiki wrote: |
| That is a five key encode IC for remote car toy. |
Yes. I checked the circuit, it seems to be encoder only.
Now my question is, Can I interface the same circuits (transmitter and receiver) to microcontroller instead of encoder/decoder? If yes, how and where do i connect them? TX /RX?? or I/O lines? Please give me the link or any info if possible.
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harishb
Joined: 14 Jun 2007
Posts: 1
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| 14 Jun 2007 17:28 Re: SM6136B Transmitter (?) seen in a Toy Car Remote |
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I WANT TO SEE SM6135W CIRCIT WITH RADIO FREQUENCY CIRCIT
Added after 2 minutes:
| harishb wrote: |
| I WANT TO SEE SM6135W CIRCIT WITH RADIO FREQUENCY CIRCIT |
[img][/img]
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kokokiki
Joined: 23 Oct 2001
Posts: 16
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| 15 Jun 2007 7:22 Re: SM6136B Transmitter (?) seen in a Toy Car Remote |
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You can use u'C i/o transmit & receive bit-shift-data by OOK modulation.
Because SM6136 is a encode(or deode) OOK modulation data by pulse length & pulse count.
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gears
Joined: 29 Apr 2008
Posts: 2
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| 29 Apr 2008 8:12 Re: SM6136B Transmitter (?) seen in a Toy Car Remote |
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hey!....this is jack..
i can give the information about this chip....don't worry...
the sm6136B is an encoder chip commonly found in toy remote cars...
these encoders transmit the data to the reciever.....by using frequency matching
technique the main thing about this encoder chip is that each time when you press a key it encoder the four bit code....just like this...
for example you have the four keys...1,2,3,4
if you press the key 2 it encodes the data like this...
0010
pressing key1
0001
pressing key 3
0011
pressing key 4
0100
this encoded data is transmitted using a transmitter
at first this encoded data is modulated and it is synchronized by the clock pulses..
and transmitted through the antenna....
whenever this transmitted data is recived at the recieving end the modulated wave is passed through a demodulator(this process is called demodulation...which is the reverse process of modulation...)and this modulated wave which is arrived at the
receiver is demodulated by passing the modulated wave and the synchronized clock pulses (which have the same frequency matches with transmitter frequency) through the demodulator and the output of the demodulator is fed to the decoder
chip it receives the data serially and decodes the data parallelly...
i have sent the pin diagram of sm6136b transmitter and the sm6135b reciver chips// you should see this....
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gears
Joined: 29 Apr 2008
Posts: 2
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| 29 Apr 2008 8:22 Re: SM6136B Transmitter (?) seen in a Toy Car Remote |
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i have sent an word document so valuable.......
you should see this......
it contains all the functions of each pin of the transmitter chip...sm6136b..
and also the receiver sm6135b..okay...!!!.....
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joeypc
Joined: 28 May 2008
Posts: 1
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| 28 May 2008 11:28 SM6136B Transmitter (?) seen in a Toy Car Remote |
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Well... I would like to see the the circuit with the RF circuit. Could anyone here share me the RF circuit (RF section) ?
Thank you for your sharing !
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Audioguru
Joined: 19 Jan 2008
Posts: 349
Helped: 22
Location: Canada
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| 28 May 2008 16:27 SM6136B Transmitter (?) seen in a Toy Car Remote |
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The datasheet for the encoder IC is written in Chinese so I couldn't see if it has an RF transmitter circuit.
The encoder is a very cheap and simple BANG, BANG one without proportional control like model RC circuits have.
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zlatkoMM
Joined: 04 Apr 2008
Posts: 111
Helped: 3
Location: Croatia
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| 29 May 2008 20:23 Re: SM6136B Transmitter (?) seen in a Toy Car Remote |
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So this is BANG,BANG chip?
Oh my --- this is very dengerus chip.
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Audioguru
Joined: 19 Jan 2008
Posts: 349
Helped: 22
Location: Canada
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| 30 May 2008 0:15 SM6136B Transmitter (?) seen in a Toy Car Remote |
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BANG, BANG control means suddenly full speed or stop. Turning suddenly extremely to the left, straight or extremely to the right.
It would be very dangerous in a real car.
Proportional control like models have is as much speed or amount of turning that you want. Like a real car.
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dozopower
Joined: 09 Jul 2008
Posts: 3
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| 09 Jul 2008 11:30 SM6136B Transmitter (?) seen in a Toy Car Remote |
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| Where can i get the datasheet of SM6135W??
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Audioguru
Joined: 19 Jan 2008
Posts: 349
Helped: 22
Location: Canada
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| 09 Jul 2008 16:12 SM6136B Transmitter (?) seen in a Toy Car Remote |
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| The IC is Chinese. Datasheetarchive has the datasheet but you must download 20MB of Chinese fonts to read it in Chinese. http://www.datasheetarchive.com/pdf/3110049.pdf
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dozopower
Joined: 09 Jul 2008
Posts: 3
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| 11 Jul 2008 14:08 SM6136B Transmitter (?) seen in a Toy Car Remote |
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| Can somebody phelp me.. i wanna build a rc car with atmega32 with SM6135W,SM6136B as tramsmitter and receiver. I dunno how to work with the transmitter and receiver alongside the atmega32.
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