The BARGAIN basement part 1

End Devices (Nodes) Hardware
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I’m always a bit scared, usually it’ll cost me money…

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Semtech SX1301 concentrator chips $2.50 :slight_smile:

https://world.taobao.com/item/535962847954.htm?spm=a312a.7700714.0.0.s0Atsa#detail

Anyone up to build a cheap gateway?

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and the SX1257 ??

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SX1257 is also available for about the same:

https://world.taobao.com/item/536958313984.htm

But Mouser, Digikey etc has the SX1257 too…

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we will see a big change in the market…

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I can imagine we’ll see open source hardware LoRa gateways popping up on github… here’s one to get started:

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other relais boards

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If anyone is curious what 10x SX1301 chips look like as sent by an Ali seller :wink:

(and 10x SX1257 and 10x SX1276)

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did you really buy those? Are that the 2,50 chips? I assumed someone made a typo…

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the real deal :yum:

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Yes, that’s a real photo of the chips I bought from the link above. $2.45/each for the SX1301 and SX1257, $1.30 for the SX1276

Photo was taken at my Hong Kong fulfilment centre - perks of running a shop - I should have them in my hands in about a week for full analysis, hopefully first test PCB will be here too.

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have to be carefull searching for the sx1301 on AliExpress thats a whole different chip :sunglasses:

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https://maxict.nl/product/2681360/tp-link-poe-adapter-kit?btwview=in&rs=tweakers&utm_source=tweakers&utm_medium=cpc&utm_campaign=pricewatch

This Power over Ethernet kit will power devices over an ethernet cable up to 100m and its only ~18,50 euro. It has a injector and a splitter. PoE runs at 48V and i havent measured any voltage drops so far. A toggle on the splitter will allow you to switch the output DC between 5V/2A … 9V/1A … 12V/1A.

Tested and works with a Raspberry PI 3B in combination with a IC880A IMSI Concentrator board

Hopefully the TTN GW’s are in that same power range … will save a lot on cabling :slight_smile:

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