Anyone else experiencing this?
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@marceltrapman said:
because I am waiting for your sniffer @Yveaux
Just get it from my GitHub then ;-) (https://github.com/Yveaux/NRF24_Sniffer)
You have to figure out how it works by yourself until I have some time to blog about it...Anyway, the nRF24 seems to be very sensitive to location/orientation then?! It's true that I just 'throw' it on the table an the orientation will be different eveyday.
Is that the right conclusion? Really?@hek I'm sure they love their microwave but to use it one day for the whole evening and the other day not at all seems very unlikely to me...
@Yveaux I tied your sniffer, I got so far I was going to specify user DLT user 147, but I couln't figure out what plugin to use to what protocol and sizes.. If you could help with that I would be greatful!
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@Yveaux I tied your sniffer, I got so far I was going to specify user DLT user 147, but I couln't figure out what plugin to use to what protocol and sizes.. If you could help with that I would be greatful!
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And btw, I experience myself wierd transmission loss, it can work 100% with no packetloss for 30-40h straight, and then not working for ~1-120min and then work fine again.. I ´can't figure out why.. I havent looked into the raw data yet.
@Yveaux just post a screenshot on the DLT user dialog.. :hamburger:
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@Yveaux I tied your sniffer, I got so far I was going to specify user DLT user 147, but I couln't figure out what plugin to use to what protocol and sizes.. If you could help with that I would be greatful!
@Damme You got quite far actually! Make sure DLT user 0 (DLT=147) payload protocol is set to nrf24, header size 0, trailer size 0 and copy the right MySensors dissector (mysensors1.dll for v1.3 or mysensors2.dll for v1.4) into your plugins directory (next to nrf24.dll). Better to have only one mysensors plugin as the dissectors cannot reliably determine the protocol version.
http://yveaux.blogspot.nl
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@Damme You got quite far actually! Make sure DLT user 0 (DLT=147) payload protocol is set to nrf24, header size 0, trailer size 0 and copy the right MySensors dissector (mysensors1.dll for v1.3 or mysensors2.dll for v1.4) into your plugins directory (next to nrf24.dll). Better to have only one mysensors plugin as the dissectors cannot reliably determine the protocol version.
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@Damme You got quite far actually! Make sure DLT user 0 (DLT=147) payload protocol is set to nrf24, header size 0, trailer size 0 and copy the right MySensors dissector (mysensors1.dll for v1.3 or mysensors2.dll for v1.4) into your plugins directory (next to nrf24.dll). Better to have only one mysensors plugin as the dissectors cannot reliably determine the protocol version.
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And btw, I experience myself wierd transmission loss, it can work 100% with no packetloss for 30-40h straight, and then not working for ~1-120min and then work fine again.. I ´can't figure out why.. I havent looked into the raw data yet.
@Yveaux just post a screenshot on the DLT user dialog.. :hamburger:
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@Damme You seem to be an experineced Wireshark user/developer, right? This stuff is far from trivial...
@yveayx continue here..:) http://forum.mysensors.org/topic/229/your-workshop/17
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@marceltrapman said:
because I am waiting for your sniffer @Yveaux
Just get it from my GitHub then ;-) (https://github.com/Yveaux/NRF24_Sniffer)
You have to figure out how it works by yourself until I have some time to blog about it...Anyway, the nRF24 seems to be very sensitive to location/orientation then?! It's true that I just 'throw' it on the table an the orientation will be different eveyday.
Is that the right conclusion? Really?@hek I'm sure they love their microwave but to use it one day for the whole evening and the other day not at all seems very unlikely to me...
Anyway, the nRF24 seems to be very sensitive to location/orientation then?! It's true that I just 'throw' it on the table an the orientation will be different eveyday.
Is that the right conclusion? Really?See the antenna patterns @a-lurker found in an ap note for a similar meandering inverted F antenna: http://www.ti.com/lit/an/swra117d/swra117d.pdf (scroll down to the polar charts).
There are 6 charts with two each (horiz and vertical polarization) for each of the three planes. Our nRF is probably different in detail but similar overall.
So just rotating the nRF 20 degree along some axis might well significantly reduce or enhance its antenna gain. This is without any question of reflections or interference.
