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authorMitja Felicijan <mitja.felicijan@gmail.com>2023-05-26 00:40:40 +0200
committerMitja Felicijan <mitja.felicijan@gmail.com>2023-05-26 00:40:40 +0200
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Massive update to posts, archetypes
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1--- 1---
2title: Wireless sensor networks 2title: Wireless sensor networks
3url: wireless-sensor-networks.html 3url: wireless-sensor-networks.html
4date: 2013-10-24 4date: 2013-10-24T12:00:00+02:00
5draft: false 5draft: false
6--- 6---
7 7
8Zigbee 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. 8Zigbee networks have this wonderful capability to self-heal, which means they
9can reorder connections between them if one of them is inoperable. This works
10our of the box when you deploy them. But you have to have in mind that
11achieving this is not as easy as you would think. None of it is plug&play.
12So to make your life a bit easier, here are some pointers which, I hope,
13will help you.
9 14
10- 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.”. 15- Be careful when you are ordering your equipment abroad. There are many rules
11- 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. 16 and regulations you need to comply before you get your Xbee radios. What they
12- 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. 17 do is they wait until you prove that you won’t use the technology for some
13- 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! 18 kind of evil take over control of the world project :). For this, they have
14- 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. 19 EAR (Export Administration Regulations) which basically means “This product
15- 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. 20 may require a license to export from the United States.”.
16- And again: make plans! Plan everything! In months advanced! You will thank me later :) 21- I don’t know if this applies for every country, but when we purchased our
22 Xbee radios from Mouser, this was mandatory! What we needed to do was to
23 print out a form and write information about our company and send them a
24 copy via email. With this document, we proved that we are a legitimate
25 company.
26- When you complete your purchase and send all the documentation, you are not
27 clear yet. Then customs will take it from there :). There will be some
28 additional costs. Before purchasing, make sure you have as much information
29 about costs as possible. Because it can get costly in the end.
30- I suggest you use companies from your country. You can seriously cut your
31 costs. Here in Slovenia, the best option so far as I know is Farnell. And
32 based on my personal experience, they rock! All I need to say!
33- Make plans when ordering larger quantities. Do not, I say, do not make your
34 orders in December! :) Believe me! You will have problems with stock they
35 can provide for you. So, we were forced to buy some things from Mouser,
36 which was extremely painful because of all the regulations you need to obey
37 when importing goods from the USA.
38- Make sure that firmware version on your Xbee radios is exactly the same! Do
39 not get creative!!! I propose using templates. You can get template by
40 exporting settings/profile in X-CTU application. Make sure you have enabled
41 “Upgrade firmware” so you can be sure each radio has the same firmware.
42- And again: make plans! Plan everything! In months advanced! You will thank
43 me later :)
17- Test, test, test. Wireless networks can be tricky. 44- Test, test, test. Wireless networks can be tricky.
18 45
19If 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. 46If you are serious, I suggest you buy this book, Building Wireless Sensor
47Networks. You will get a glimpse of how networks work in lumens terms. It is
48a good starting point for everybody who wants to build wireless networks.
20 49
21**Additional resources:** 50**Additional resources:**
22 51
23- http://www.digi.com/aboutus/export/generalexportinfo 52- http://www.digi.com/aboutus/export/generalexportinfo
24- http://doresearch.stanford.edu/research-scholarship/export-controls/export-controlled-or-embargoed-countries-entities-and-persons 53- http://doresearch.stanford.edu/research-scholarship/export-controls/export-controlled-or-embargoed-countries-entities-and-persons
25- http://www.bis.doc.gov/licensing/exportingbasics.htm 54- http://www.bis.doc.gov/licensing/exportingbasics.htm
55