Matrix user forums

Hi guys

Before I get entangled with this 433Mhz RF data transfer project, can anyone shed some light as to which component is used for this? I seem to think from what I read that it is the "SRF" component but am not sure.

Thanks for your help.
Regards
Ted

Hi Ted,

It depends which 433MHz radio module you're looking at.

We support the Microchip Alpha modules via the SRF component.
http://uk.farnell.com/rf-solutions/alph ... dp/1718689

Other modules are available that can simply transmit a digital signal. So with these you can use them for simple on/off control or you can add an extra layer and transmit communications using say the RS232/UART component.
https://www.rapidonline.com/rf-solution ... hz-43-0295

Thanks Ben....greatly appreciated!!

Rgds
Ted

Hi Ben

Have received 2 TRX433S transceiver modules. Looking at the properties of the SRF component I see that the Tx and Rx pins are automatically selected according to the PIC chosen. Does this mean that the SDI pin of the radio module becomes the Rx pin and also the SDO the Tx?? Which is the ENABLE pin?
It is quite daunting to figure these radio modules and the relevant pin connections to the PIC16F690 mcu out as a novice, and the SRF help page is also very basic..!!
Are there no example programs available so as to learn from?

Thanks for your help, it is greatly appreciated.
Regards
Ted

Hi Ted,

I think you might be looking at the wrong component. You want the RF ISM component and not the SRF component.

There should be an example for this component on our Wiki and the pins should make more sense and match up with the module you have.

Thanks Ben