Dear all,
is it possible to control a RAK2171 via Downlink messages, e.g. disable GPS to save battery life or increase GPS uplinks for higher accuracy in certain situations?
If yes, is there a Downlink Message Control Document / Description?
( I am using these in a closed / own LoRaWAN network with Chirpstack without the RAK App )
As you see, I asked this question. This was about a payload decoder for uplink messages (from the RAK2171 to the gateway). It does sadly not contain any infos if it is possible to send downlink messages to the RAK2171 and how they need to look like.
There is no downlink control for now on RAK2171. Can you share me the requirements you need? I can propose it to the team and see what we can do about ti.
Thank you Carl,
it would be immensely useful if one could turn off/on and set the time intervals for GPS via downlink - as well as disabling the accelerometer. I am using this in a project as a cat tracker - and as the household employing this also as a restricted cat flap with RFID (meaning the house always sees when the cat leaves and when not) - it would be a cool hack to just enable GPS as soon as the cat leaves the house to save energy (trying to get GPS fix through very thick concrete walls for half a day will drain a lot of unecessary energy). Same thing for tracking goods - decreasing the GPS uplink intervals when one needs higher accuracy - and decreasing again if you are getting into a zone where no LoRaWAN access is foreseen (e.g. loading container onto ship and shipping for some days).
Thank you for your suggestions. I will forward this to the team. For now, there are plans for downlink control but I can’t promise if we can fit it on all your requirements. Btw, if your project is urgent, you can probably look on our WisBlock hardware platform where you can customized easily.
WisBlock is sadly too big, heavy and not ruggedist enough for a pet tracker - so it cannot be done with that. The RAK2171 is very formidable for this task, just the downlink control is missing - thanks a lot already for forwarding and I am looking forward to what you come up with
I asked our internal team about this and it seems there will be no update for downlink available.
There are no updates in the pipeline related to downlink configuration mode and likely not to be done in a short term. I am very sad to share this not so good news
Thank you @carlrowan that is sad to hear. It would really benefit the RAK2171 and make it an even better tool. So you could e.g. remotely switch precision of GPS tracking to higher/often acquiring location as soon as a crate leaves a designated area - while still have long battery life.
Maybe they should think about it, its a use case that is a dealbreaker / dealmaker for not just me, but all other companies working in logistics.
I definitely agree with @nmaas87. It would massively improve the versatility of the device.
I understand the different priorities and pipelines of a business, but I think there could be a bigger market for these devices.
Let me just jump in and say that I’d also love this functionality, as the RAK2171 is an awesome product, but not being able to remotely switch the GPS on and off is sadly a dealbreaker for me. That’s the only reason I started developing my own LoRaWAN tracker.
Alternatively, you could also look into the ioTracker which also has excellent documentation, both for uplink AND downlink. But beware it’s a bit heavier and uses nonrechargable LiSOCl2 batteries.