Hello, I’ve searched this forum for related keywords “EV_JOIN_TXCOMPLETE: no JoinAccept” - but I didn’t identified any solution. Maybe someone can help me to understand where is the problem. I have followed 2 examples to test. This and this . All I see in arduino console is: Starting Packet queu…

Looking at my notes from other support cases on here and elsewhere, the simpler quick things to check are: The pin map - if you can take some photos that show the Arduino & the RFM95 we can check it for you The soldering - at least one case the soldering looked OK but it all burst in to life after…

Pin Map I used: ▶ Table ▶ Schematic ▶ My board ▶ Sketch pinmap I know it’s better to use a breadboard, but I don’t have one, so I use my soldering iron. I checked connections, there is no bad contact or short. I had an idea to simulate not working rfm module. I unsoldered VCC wire, RFM95 was not powe…

Really good answer - thanks. All seems in order to me. The simulation tells us that the library errors correctly when the radio is not connected, but not if there is an issue with it. I’m presuming you have an appropriate length piece of wire on the antenna that’s cropped top right in the picture …

[image] descartes: I’m presuming you have an appropriate length piece of wire on the antenna I’m using the antenna that I received with this module. [antena] I sent downlink message. The sketch don’t see nothing. The packet is queued. [downlink] Frames up 0 Frames down 0

Did you tell the node to send an uplink? It will only get it when it uplinks …

[image] descartes: Did you tell the node to send an uplink? How to do that? Upload raw sketch for listening?

The ABP sketch is just fine - hit the reset button on the Arduino. Hopefully just after you get the EV_TXCOMPLETE you’ll get a Received x bytes of payload message

I changed the device registration from ABP to OTAA on TTN side. Then uploaded my otta example to arduino. Now I don’t see no JoinAccept. It’s repeating this Starting Packet queued 441: EV_JOINING But with another LMIC MCCI library, name=MCCI LoRaWAN LMIC library version=3.2.0 author=IBM, Matt…

The point of my ABP test that I suggested is to check if the device can uplink and then receive the downlink in the simplest possible way. Changing over to OTAA complicates the test. Please try the ABP test - takes about 30 seconds - I’ll wait.

I misunderstood what I should do. I will correct this late night back to ABP, but not now (I’m working). Thanks for explanation.

Arduino nano and RFM95 basic test - EV_JOIN_TXCOMPLETE: no JoinAccept

End Devices (Nodes) LMIC

lorauser (Lorauser) October 14, 2020, 10:25am 80

How to do that? Upload raw sketch for listening?