LoRa (RFM95W & WIFI NodeM ESP8266)

LoRa (RFM95W & WIFI NodeM ESP8266)

1. ArduinoIDE aplinkoje einame į Tools->Manage Libraries... ir sudiegiam LoRa by Sandeep Mistry (v0.7.2)
2. Sujungiam WIFI NodeM ESP8266 ir RFM95W

WIFI NodeM ESP8266	RFM95W
GND	GND
3V3	3.3V
D0	RESET
D4	NSS
D5	SCK
D6	MISO
D7	MOSI

3. Imtuvas (angl. receiver)

#include <LoRa.h>

#define PIN_SPI_SS              D4
#define PIN_SPI_MOSI            D7
#define PIN_SPI_MISO            D6
#define PIN_SPI_SCK             D5
#define PIN_RESET               D0
#define PIN_DIO0                -1 // not used

void setup() {
  Serial.begin(115200);
  while (!Serial);
  Serial.println("Init Serial...[OK]");

  LoRa.setPins(PIN_SPI_SS, PIN_RESET, PIN_DIO0);
  Serial.print("Init LoRa receiver...");
  if (!LoRa.begin(866E6)) {
    Serial.println("[FAILED]");
    Serial.println("Check wires and reset.");
    while(1);
  }
  Serial.println("[OK]");

  Serial.println("Registers:");
  LoRa.dumpRegisters(Serial);
  Serial.println("Registers...[DONE]");
}

void loop() {
  int packetSize = LoRa.parsePacket();
  if (packetSize) {
    Serial.print("Received packet '");
    while (LoRa.available()) {
      Serial.print((char)LoRa.read());
    }
    Serial.print("' with RSSI ");
    Serial.println(LoRa.packetRssi());
  }
}

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Monopolinės antenos ilgis: ~86.5mm

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Nuorodos

• https://arduino-esp8266.readthedocs.io/en/2.7.0/index.html
• https://github.com/sandeepmistry/arduino-LoRa
• https://pdacontrolen.com/comunication-lora-esp8266-radio-rfm95-1/ (neveikia, nes neteisingai sujungti moduliai)
• https://github.com/JhonControl/ESP8266-LoRa-RFM95/blob/master/Transm_LoRa_ESP8266/Transm_LoRa_ESP8266.ino
• https://learn.adafruit.com/adafruit-feather-32u4-radio-with-lora-radio-module/using-the-rfm-9x-radio
• https://randomnerdtutorials.com/esp32-lora-rfm95-transceiver-arduino-ide/