Where is the ‘bargain part’? 
I’m sure you’ll find something that fits your definition of a bargain 
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If you wondered how the Boston Swing batteries fit into 18650 PCB mounts…
These are some really great cells and very robust too, all round metal case.
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build your own lorawan overflow alarm
Our Offer for Hackers and Makers
Are you part of a hackerspace, makerspace or some other community group and want to build a gateway for a non-commercial project that somehow benefits the public (e.g. a public gateway for The Things Network)? We want to support these use cases! Drop us an e-mail at shop@coredump.ch explaining your project to get the backplane 33% cheaper!
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also handy for all your lab test cables
Nice. Similar product from Orico below
(With 5mm instead of 4mm diameter slots and in different colors.)
Both companies make quality products.
- good quality - recommended
https://www.elektor.nl/dragino-lora-iot-development-kit-868-mhz
Elektor (NL) has put the Dragino Lora IoT kit on sale.
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WARNING ! don’t expect this to work on TTN
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The RFM95 module on the Arduino will be LoRaWAN compliant in combination with LMIC. The single channel gateway is NOT LoRaWAN compliant.
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