linkmeter 3.2 board and EXT33


 

Dave Casazza

TVWBB Fan
Hi all,

How do I use EXT33 to enable my radio? Q4, C8 and C9 have spaces on the v3.2 board and are populated, so not quite getting what EXT33 is for... unless it's the Vin for the Radio, and I need to jumper EXT33 and tie it into Vin of RFM12B?

Thoughts?

Thanks,

Dave
 
If you've got the HeaterMeter 3.2 board in a router, there is no need to use EXT33 and Q4 as the router will provide the power for the 3.3V line. C8 and C9 should still be used. If you're running standalone, then populate Q4 and put a jumper on EXT33 to provide 3.3V to the RFM12B wireless. If you've already populated Q4, it doesn't do anything unless the EXT33 jumper is populated.
 

 

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