The BARGAIN basement part 1

End Devices (Nodes) Hardware
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2PCS 0.47F 5.5V ELNA DB Coin-C Farad Super Capacitor Dynacap Memory Backup

Interesting article how to use these capacitors

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and the 1F’s are cheaper ?

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from 4.2v to 3v @ 1.5A

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Only $4.90 at Aliexpress

NEW! keyestudio DS3234 high precision real time clock module for Arduino

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http://www.everbuying.net/product1199104.html?

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new dev board

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Not really a bargain but for the hardcore outdoor LoRaWAN antenna placement,

https://www.rfsolutions.co.uk/antennas-c8/miniture-puk-sma-antenna-433-868mhz-p137

Edit for the dutch readers : http://www.d-d-s.nl/antenne-gsm.htm and http://www.d-d-s.nl/antenne-gsm.htm

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GPS & ISM :

GPS & ISM & WIFI :

https://www.aliexpress.com/item/Free-Shipping-Factory-Price-Waterproof-Outdoor-GSM-GPS-WIFI-Cobo-Antenna-3M-Cable/32616801456.html

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I think this document seems very interesting about ranges :wink:

http://wireless-solutions.de/forum/images/stories/downloads/Radio%20Modules/iM880B/General_Information/iM880x_AN011_RangeTest_V1_1.pdf

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Only 7 and 12 km :laughing: in direct line of sight.
It seems, that higher mountains must be used :smiling_imp:

@Charles a little bit “off topic”, but I couldn’t resist

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https://www.itead.cc/

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