Does anyone know this LORA breakout?

Projects Networking, Protocols, and Devices
1

https://www.ebay.de/itm/172862434384?ViewItem=&item=172862434384

The (third) option called Arduino SX1278 433M Lora Ra-02 Long-Distance RF Wireless Modul IPEX Socket

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It looks like a Serial breakout module for LORA, which would be exactly what I need... But I cant find any documentation on this board...

Could anyone tell me:

Do I need a Lora module (i.E. the first or second option of the offer) to be plugged on the pin sockets, or is the chip onboard already a LORA chip? Looks like its STM8S103, which is UART/SPI bridge, so probably module needed...

How to wire and control it, especially the conn buildup/pairing? Which lib to use?

2

If you need a LoRa module, then you should buy a LoRa module.
Do you order cardboard boxes when you want to eat a pizza ?
This is a "socket" for the SX1278.
Buy a module that others have used with an Arduino and has support. For example with a library for it and a forum for questions on the sellers website.
For examle: Adafruit RFM96W LoRa Radio Transceiver Breakout - 433 MHz [RadioFruit] : ID 3073 : $19.95 : Adafruit Industries, Unique & fun DIY electronics and kits.

3

Ask the vendor, if they dont respond, dont buy.

Incidently count the number of pins on the LoRa modules and then the pins on the breakout board socket.

4

Yeah, it is a socket. My reason to look at it is to use as few wires between it and Arduino as possible - my arduino actually only has TX and RX free.

I think I will just use the HC-12 link, I am doing an expansion to my RC ship remote control, and 1.5 km range would be enough. I have 8 potentiometers (on A-Pins) and 8 switches (D2-D10) on the board + I2C display on the transmitter side. Later adding as many additional channels per I2C as I need.

In the boat, there's an Orange Pi Mini, which should combine data from RC receiver and my data link and broadcast the state over I2C to Arduino Pro Minis, which control servos, light, etc. Further ProMinis collect telemetry data (voltage, RPM of engine, current, temperature...), and it is sent back over the link.