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DASH7 on a JeeNode?

Added by haarts about 6 years ago

Hi guys,

I’m looking to create a sensor network in my home, as a first step to home automation. For this I’m weighing my options and I think I have two options, either Zigbee or the new DASH7 (http://www.dash7.org/, firmware http://sourceforge.net/projects/opentag/). I’d like to go with DAHS7 and a couple of JeeNodes. Is this even remotely possible? What are your thoughts?

With kind regards,


Replies (4)

RE: DASH7 on a JeeNode? - Added by tht about 6 years ago

Hi haarts,

What do you think are the advantages of using DASH7 instead of the native JeeNode protocol? Most people here use the JeeNode’s own protocol on top of RFM12B RF modules with quite some success and power consumption is very, very low. If you plan to use JeeNodes you’ll already have a transceiver for RFM12B on the PCB and for me it looks like you’ll need additional hardware for DASH7. But where is this hardware? I only scanned over dash7.org for a few minutes but for me it looks like a lot of marketing but not much content. Maybe I’m completely wrong with this assumption, I have no idea.

You should probably give a short introduction to DASH7 here as most people in this forum will not (yet) know it.

regards,
Thomas

RE: DASH7 on a JeeNode? - Added by haarts about 6 years ago

Hi,

The main advantage would be the meshing feature. Also the RF wakeup feature seems interesting. The main DASH7 site is indeed high on marketing and rather low on substantial stuff; there is however hardware: http://www.wizzilab.com/shop/.

As for a short introduction (2009): http://www.slideshare.net/jpnorair/introduction-to-dash7-technology-1698125

regards,

RE: DASH7 on a JeeNode? - Added by tht about 6 years ago

Thanks for these links! RF wakeup sounds like a great feature for low-power devices. For home automation I don’t really see meshing as a very important feature. But actually I’m looking into mesh networking myself, because it sounds like an interesting topic…

The modules on the wizzilab-shop are really expensive (10x as much as RFM12B), clearly too expensive for what I’m looking for. Looks like these modules actually are able to handle some sensors attached to the GPIO pins. So why not connect your sensors directly to these pins and skip the additional JeeNode?

As you’re not going to use the RFM12B module I actually don’t see a reason why you should take a JeeNode for your job.

RE: DASH7 on a JeeNode? - Added by haarts about 6 years ago

I’ve indeed been considering skipping the JeeNodes. Actually I expect a couple of cheap modules to be released in the forthcoming month based on my discussion with the main DASH7 man: http://arduino.cc/forum/index.php/topic,95560.0.html

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