Lora transmission process

Otavio · May 2, 2020, 8:43pm

Hello everyone. I would like to know if the LoRa transmission process employed by the ESP32 (V2) module uses Whitening, Interleavinge and Gray Indexing

Supporter · May 6, 2020, 7:04am

Hi @Otavio

No, the ordinary peer-to-peer communication uses the functions of the hardware layer. An example is just a simple transmission and reception reference.

github.com

HelTecAutomation/Heltec_ESP32/blob/master/src/lora/API.md

# Heltec LoRa basic library API

## Include Library

```arduino
#include <LoRa.h>
```

## Setup

### Begin

Initialize the library with the specified frequency.

```arduino
LoRa.begin(frequency);
```
 * `frequency` - frequency in Hz (`433E6`, `866E6`, `915E6`)

Returns `1` on success, `0` on failure.

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Otavio · May 7, 2020, 6:46pm

Thanks for the answer. I had asked because of this topology that I found in an article (https://www.researchgate.net/publication/328899668_LoRa_Digital_Receiver_Analysis_and_Implementation)

Do you know if you have any LoRa technology or library that implements this topology?

Supporter · May 8, 2020, 9:27am

This diagram shown the principle of LoRa communication, it’s already handled by hardware layer.

Otavio · May 8, 2020, 1:21pm

Hummm. That’s what I wanted to know. Thanks again for the help.