Which LoRa chips are on the market?

End Devices (Nodes) Hardware
1

Hello, I wonder how many different LoRa chips are available on the market.

Aparently Semtech has sx1272/3 and sx1276/7/8/9. I noticed mdot and xdot are using sx1272. arduino lora gps shield uses sx1276. How about RN2483? Does Microchip has their own LoRa chip?

Many thanks.

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2

Semtech are the only company making LoRa chips.

There are also SX1261, SX1262, SX1268, SX1280, SX1281 and probably others too.

3

Does this mean that all the companies use the Semtech chip and integrate it in their own design, e.g., by using different MCUs?

4

The physical layer of the LoRa protocol is proprietary, so everyone uses Semtech chips.

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5

Some LoRa modules claim to be full duplex (https://www.aliexpress.com/item/32807136876.html) is it possible?

6

A single channel LoRa device, like that above, can be a receiver or transmitter, but not at the same time, so ,it cannot do full duplex over the LoRa physical interface.

These are not LoRa devices for TTN (the subject of this forum) so what use are you putting them to ?