Is it theoretically possible that I have fried my RFM69 even with an antenna? I had “radio init SUCCESS” for a while but after I tried to transmit my own data it became “radio init FAIL”. The 2nd board I tested with worked just fine so I know it’s definitely not a software issue
in my testing, the little helicals outperform the pcb trace antennas by about 20db. it's also worth remembering the rfm69 are capable of OOK as well as FSK. it also claims MSK/GMSK but i have not seen anyone use it.
Thanks for your contribution, 20db is two orders of magnitude stronger signal :-) so wow thats good! There's many variables to take into consideration when you do antenna testing. Like I mentioned elsewhere in the forum, my own motes on my property ALL have monopole antennas, go through many obstacles and have strong signal so I never really used other antennas. Its really hard to beat the monopole. But I try to offer a wide range of options for those who want/need to explore even better signal propagation. OOK is not commonly used and these radios can do much more than what I mentioned in the video and I just scratched the surface here, it was meant as a very basic overall intro and guide for those beginners who are new to all this.
The video is very informative and would be good beginner like me.... I have query pertaining to rfm69hcw. whether rfm69hcw can be used instead of nrf24lo1 to make RC transmitter Receiver for airplanes?
Would love to see a video using the RFM69 module with NodeMCUs communicating via the RFM modules. I have some of both in my parts drawer but never used them.
Even though I dont use ESP or NodeMCU with RFM69 myself, there are folks in the forum who do, and have shared code/projects so check it out, you may find useful stuff there to get you started. lowpowerlab.com/forum Thanks!
Depends on which frequency you use. Yes, they're unlicensed radio bands, i.e. free to use but you might have interference from other devices taking advantage of the same band.
Finally - someone who knows what they are talking about.
Is it theoretically possible that I have fried my RFM69 even with an antenna? I had “radio init SUCCESS” for a while but after I tried to transmit my own data it became “radio init FAIL”. The 2nd board I tested with worked just fine so I know it’s definitely not a software issue
Wondering why do some RFM69 modules come with two large PCB pads? What is their purpose?
in my testing, the little helicals outperform the pcb trace antennas by about 20db.
it's also worth remembering the rfm69 are capable of OOK as well as FSK. it also claims MSK/GMSK but i have not seen anyone use it.
Thanks for your contribution,
20db is two orders of magnitude stronger signal :-) so wow thats good! There's many variables to take into consideration when you do antenna testing. Like I mentioned elsewhere in the forum, my own motes on my property ALL have monopole antennas, go through many obstacles and have strong signal so I never really used other antennas. Its really hard to beat the monopole. But I try to offer a wide range of options for those who want/need to explore even better signal propagation.
OOK is not commonly used and these radios can do much more than what I mentioned in the video and I just scratched the surface here, it was meant as a very basic overall intro and guide for those beginners who are new to all this.
So you get both LoRa and OOK/FSK with the RFM69?
Wow so helpfull. Really appreciate your efforts and please keep posting new stuff.
Nice video thanks for sharing. Can it also transmit and receive audio without any microcontroller.
No, these FSK radios are not intended for streaming/audio, but for small data packets.
The video is very informative and would be good beginner like me....
I have query pertaining to rfm69hcw.
whether rfm69hcw can be used instead of nrf24lo1 to make RC transmitter Receiver for airplanes?
Of course. Why not? NRF24L01 is garbage anyway. Seriously trashtacular.
Would love to see a video using the RFM69 module with NodeMCUs communicating via the RFM modules. I have some of both in my parts drawer but never used them.
Even though I dont use ESP or NodeMCU with RFM69 myself, there are folks in the forum who do, and have shared code/projects so check it out, you may find useful stuff there to get you started. lowpowerlab.com/forum
Thanks!
EXCELLENT tutorial, thank you!
May you let me know which soldering iron you're using?
metcal mx5200
Nicely done. Thanks!
Would it be possible to use a raspberry pi 3 instead?
could these be used in a small scale product and not need to be FCC certified? (tested at a lab etc)?
Depends on which frequency you use. Yes, they're unlicensed radio bands, i.e. free to use but you might have interference from other devices taking advantage of the same band.
How to know range of module
Nice info, keep it up,thanks for sharing :)
Thank you!
I am from Pakistan from where I get this?
Nice tutorial.
Very cool and useful.
Thank you - very informative