I'm trying to get multiple MightHats to communicate with multiple Moteino RFM95 nodes. At close range 3 meters.
Using the radiohead library.
Out of 6 Mightyhats, I have 4 MightyHats that work with all of the Moteino nodes, but I have 1 Mightyhat that only work with 3 out of 5 nodes, and another MightyHat that works with 4 out of 5 different nodes.
Im using Bw31_25Cr48Sf512
It looks to me like 2 of the nodes and 2 of the Mightyhats may be off frequency by a few ppm
I have a good HP Lab spectrum analyzer and Frequency meter, is there any test software I can run on the MoteinoRFM95 to get a carrier so I can measure a static frequency ?
Any other suggestions on diagnosing the problem ?