From cd6644ea4ddc78597934ab0ef5ba50e3c3daa927 Mon Sep 17 00:00:00 2001 From: Mitja Felicijan Date: Sat, 8 Jul 2023 23:25:41 +0200 Subject: Moved to a simpler SSG --- .../posts/2013-10-24-wireless-sensor-networks.md | 53 ---------------------- 1 file changed, 53 deletions(-) delete mode 100644 content/posts/2013-10-24-wireless-sensor-networks.md (limited to 'content/posts/2013-10-24-wireless-sensor-networks.md') diff --git a/content/posts/2013-10-24-wireless-sensor-networks.md b/content/posts/2013-10-24-wireless-sensor-networks.md deleted file mode 100644 index fc5d372..0000000 --- a/content/posts/2013-10-24-wireless-sensor-networks.md +++ /dev/null @@ -1,53 +0,0 @@ ---- -title: Wireless sensor networks -url: wireless-sensor-networks.html -date: 2013-10-24T12:00:00+02:00 -draft: false ---- - -Zigbee networks have this wonderful capability to self-heal, which means they -can reorder connections between them if one of them is inoperable. This works -our of the box when you deploy them. But you have to have in mind that achieving -this is not as easy as you would think. None of it is plug&play. So to make -your life a bit easier, here are some pointers which, I hope, will help you. - -- Be careful when you are ordering your equipment abroad. There are many rules - and regulations you need to comply before you get your Xbee radios. What they - do is they wait until you prove that you won’t use the technology for some - kind of evil take over control of the world project :). For this, they have - EAR (Export Administration Regulations) which basically means “This product - may require a license to export from the United States.”. -- I don’t know if this applies for every country, but when we purchased our Xbee - radios from Mouser, this was mandatory! What we needed to do was to print out - a form and write information about our company and send them a copy via - email. With this document, we proved that we are a legitimate company. -- When you complete your purchase and send all the documentation, you are not - clear yet. Then customs will take it from there :). There will be some - additional costs. Before purchasing, make sure you have as much information - about costs as possible. Because it can get costly in the end. -- I suggest you use companies from your country. You can seriously cut your - costs. Here in Slovenia, the best option so far as I know is Farnell. And - based on my personal experience, they rock! All I need to say! -- Make plans when ordering larger quantities. Do not, I say, do not make your - orders in December! :) Believe me! You will have problems with stock they can - provide for you. So, we were forced to buy some things from Mouser, which was - extremely painful because of all the regulations you need to obey when - importing goods from the USA. -- Make sure that firmware version on your Xbee radios is exactly the same! Do - not get creative!!! I propose using templates. You can get template by - exporting settings/profile in X-CTU application. Make sure you have enabled - “Upgrade firmware” so you can be sure each radio has the same firmware. -- And again: make plans! Plan everything! In months advanced! You will thank me - later :) -- Test, test, test. Wireless networks can be tricky. - -If you are serious, I suggest you buy this book, Building Wireless Sensor -Networks. You will get a glimpse of how networks work in lumens terms. It is a -good starting point for everybody who wants to build wireless networks. - -**Additional resources:** - -- http://www.digi.com/aboutus/export/generalexportinfo -- http://doresearch.stanford.edu/research-scholarship/export-controls/export-controlled-or-embargoed-countries-entities-and-persons -- http://www.bis.doc.gov/licensing/exportingbasics.htm - -- cgit v1.2.3