I’m working on a project where I’ll need my RFM69Pi to send packets outbound from my emonHub, based on messages from node-RED via MQTT. I’m using the emonGLCD instructions as an example of what to do. My Pi is running low-write 9.8.31 2018.06.21, created from an emonSD image back when the image included node-RED and openHAB.
I wasn’t having luck getting my packets on the receiving end, so I decided to test that the radio was sending using minicom connected to the RFM69Pi. I used ‘t’ to send a test packet and I listened on another RFM69Pi. I was able to see the test packet being broadcast, but it appeared to be coming from node 37.
The sending RFM69Pi connected to my node-RED server gives this information when I press ‘v’. I looks like it is sending from Node 5, as expected for an emonPi.
[RF12demo.14] E i5 g210 @ 433 MHz
Then I press ‘t’ to send a test packet. This is what I see on the other RFM69Pi:
OK 37 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 2 -> ack
To me it looks like the packet is being sent from Node 37. Any idea why?