Transmission Question about the Moteino R4-USB with the RFM69HW

Started by peter, December 07, 2013, 06:37:08 PM

peter

Hello all,

I am new to the Moteino, and I would like to ask a few questions about the Moteino R4-USB with the RFM69HW.

I am able to communicate between two Moteino R4's with RFM69HW transceivers using the "Node" and "Gateway" examples -- the results are displayed via the serial monitor.  When running the "Node" example, I noticed that the RFM69HW's transmitting LED (the Tx LED) blinks (indicating that it is transmitting) when the serial monitor is turned on. On power up, the transmitting LED does not blink.  So..

-Does this mean that the Moteino R4 can only transmit when the serial monitor is turned on?  Or does the R4 begin transmitting when it is powered up? 
-I need to transmit on power up.  Has anyone been able to do so?





Felix

Peter,
If you're talking about the TX led on the FDTI chip, yes - that will blink a few times then stop - not sure why but I've seen that happen too. I think the FTDI chip detects there's no serial open so it won't blink the LED.
However the Moteino will transmit. As long as you keep the code intact and don't remove the D9 blinking, that LED on the MOteino wired to D9 should still blink whenever it sends or receives.