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arduino-libraries / MKRWAN

An Arduino library for sending and receiving data using LoRaWAN protocol and LoRa® radios.
https://www.arduino.cc
GNU Lesser General Public License v3.0
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Setting DR doesn't work #89

Open fe64970103 opened 3 years ago

fe64970103 commented 3 years ago

It seems setting the data rate via dataRate() doesn't work at all and this is a known issue. There is a workaround I confirmed myself that works, but the workaround requires use of ADR that makes the gateway to send downlink messages on each and every uplink.

The workaround consists of enabling ADR and the setting the datarate prior sending out lora frames: modem.setADR(true); modem.dataRate(3); modem.beginPacket(); ...

However this doesn't seem to be a MKRWAN library issue, but someting related to the module itself. Is there something that can be done via raw AT commands to get around this? Any suggestions or clues are welcome.

fe64970103 commented 3 years ago

As already thought this seems to be a module firmware issue: https://github.com/arduino/mkrwan1300-fw/issues/6

It's pretty old to and I'm wondering how such a basic feature wasn't addressed by now. This really limits the usage of the mkr1310 board as there is no real workaround.

flhofer commented 3 years ago

@fe64970103 Check out the linked issue. Found the problem. Should be fixed (Patched) with the next version 1.2.4

flhofer commented 2 years ago

See the not yet released v1.2.4 of my pull request. It includes the necessary modem firmware update in the MKRWAN standalone sketch. (link to repo next to the title flhofer...)