Comunication with FM transmiter VMR6512

Projects Networking, Protocols, and Devices
1

Hi, I bought on dealextreme a module VMR6512! This module has the uart interface! Some one can help me to configuration this module using serial comunication library ?

Is need know that this module is 3,3V, so I think that is need put a resistor to have this voltage?!
This is manual : v-module.com

The manual say that have 3 words: Command - parameter 1 -parameter 2, How I will send a command to this module?

thanks!

2

How I will send a command to this module?

If the device is connected to TX and RX, use Serial.write(cmd);, where cmd is a byte type variable, or Serial.write(cmd, BYTE); where cmd is a constant.

Send the parameters the same way.

Use Serial.available() and Serial.read() to get the reply.

3

Looks like you would just do Serial.Write() commands with the data described
Serial.Write (command_byte);
where command byte = 0x01, 0x02, 0x03, 0x04
Serial.Write( D1_byte);
where D1 = a value for command 0x01, and 0 otherwise
Serial.Write( D0_byte);
where D0 = different things depending on the command byte.

4

Where do you get one of these?

5

Hi, thanks for your answer!

If i understand to set the radio in 95,5MHZ the comand is:
Serial.Write (0x01, 0x251C, 0x5);
or
Serial.Write (0x01);
Serial.Write (0x251C);
Serial.Write (0x05);

??

I by it in Dealextreme :
http://www.dealextreme.com/p/vmr6512-hi-fi-fm-transmitter-diy-module-44121 or http://s.dealextreme.com/search/VMR6512

They have a Power Amplifier Module too http://www.dealextreme.com/p/vmr6700-rf-power-amplifier-module-47812

6

0x251C would have to be 2 bytes
I think you want 0x25 & ox4E

D1 = 0x25 = 37 decimal
D0 = 0x4E = 78 decimal

thus (37*256 + 78)*10,000 = 95,500,000 >> 95.5MHz
or (0x25 * 0x100 + 0x4E) = 0x254E

7

They were able to get the set frequency, 0x01 0x00 0x00 in command as the spec says?