node red and class C

[Uladzimir Tsykunou]

Hello. i am trying to send downlink messages to my lora class C device using node-red. But there are some problems. I use Multitech Conduit+MTAC868 card and AEP 1.4.1. firmware. Enabled Lora server and configured it, also did very simple Node-red application. My device connects to the gateway through “Activation by Personalization”, i added and configured it using lora-query utility(node-add, node-update class C). Also i use sdr-rtl radio scanner to look what happens in the radio environment.

Unfortunately i can send downlink messages only when my device added to gateway as class A. In this case it receives messages in RX1 window. But if I add it as class C (node-update xxxx class C) gateway sends only ack messages, and no custom messages neither in RX1 window nor in other time. Uplink messages pass fine in any mode.

I use “Inject” and “Lora out” blocks in node-red.

So, my question: is there any method to make MTAC+Node-red send messages to class C devices?

Regards, Vladimir

• This topic was modified 7 years, 10 months ago by Uladzimir Tsykunou.

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