AT89S52 with CDR-03A datasheet problem

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Ogu Reginald

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I am doing a project that involves the interfacing of CDR-03A rf module but I am having a problem getting the datasheet of the rf module in question.
Can anyone help me with the datasheet of the module?



Thanks.
 

Mention the ICs used in the rf module. Why do you need datasheet? I have the same module. I purchased it from here. **broken link removed**

It works fine.

Contact for datasheet here.

**broken link removed**
 
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In fact this is the only rf module at my reach. I need the datasheet to know how it works and how to make my connections.

I want a pin output from AT89S52 to trigger the transmitter so that it can transmit and on the other hand the reciever will reciever and send a logic one tp another AT89S52. Can that your module perform the discribed task.
 

There are two modules. One is receiver and another is transmitter. The smaller module is transmitter and the bigger one the receiver. In the bigger one if you hold the module with components side facing you then the left most pin is Vcc (+5V) and the right most pin is ground. The middle two pins are DATA pins. You can use any one or both pins shorted. Connect this pin to Rx pin of uC. In the transmitter module if you hold it so that inductors are facing you then the left most pin id DATA pin and it has to be connected to Tx pin of uC. The middle pin is Vcc (+5V) and the right most pin is ground. You have to write UART code for transmission and serial interrupt code for reception.
 

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