Example Code for Arduino-ABP Network Access

Hardware Preparation

• DFR0994 Romeo ESP32-S3 x 1
• LoRaWAN Indoor Gateway (868MHz Version) or LoRaWAN Indoor Gateway (915MHz Version) x1

Software Preparation

• Download Arduino IDE: Click to download Arduino IDE
• Add ESP32 board to Arduino IDE
• Please install the DFRobot_LoRaWAN_ESP32S3 library before use.
• About how to install the library?

Note:

• LoRaWAN protocol stack version: 1.0.3
• You need to set the data parsing format to "text" on the gateway.

Sample Code

#include "DFRobot_LoRaWAN.h"
#define APP_INTERVAL_MS 10000

const uint32_t nodeDevAddr = 0xDF666666;
const uint8_t nodeNwsKey[16] = {
0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF
};
const uint8_t nodeAppsKey[16] = {
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10
};

uint8_t buffer[255];
uint8_t port = 2;

LorawanNode node(nodeDevAddr, nodeNwsKey, nodeAppsKey, CLASS_A);
TimerEvent_t appTimer;

void userSendConfirmedPacket(void) 
{    
    TimerSetValue(&appTimer, APP_INTERVAL_MS);
    TimerStart(&appTimer);

    const char * data = "DFRobot"; 
    uint32_t datalen = strlen(data);
    memcpy(buffer, data, datalen);
    node.sendConfirmedPacket(port, buffer, /*size=*/datalen);

    printf("Sending Confirmed Packet...\n");
}

void rxCb(void *buffer,uint16_t size,uint8_t port,int16_t rssi,int8_t snr,bool ackReceived,uint16_t uplinkCounter ,uint16_t downlinkCounter)
{
    if(size != 0){
        printf("data:%s\n", (uint8_t*)buffer);
    }
}


void setup()
{
    Serial.begin(115200);
    delay(5000); // Open the serial port within 5 seconds after uploading to view full print output
        
    if(!(node.init(/*dataRate=*/DR_4, /*txEirp=*/16))){     // Initialize the LoRaWAN node, set the data rate and Tx Eirp
        printf("LoRaWAN Init Failed!\nPlease Check: DR or Region\n");
        while(1);
    }
    TimerInit(&appTimer, userSendConfirmedPacket); // Initialize timer event
    node.setTxCB(txCb);                             // Set the callback function for sending data
    node.setRxCB(rxCb);                             // Set the callback function for receiving data
    printf("ABP Test\n");
    TimerSetValue(&appTimer, APP_INTERVAL_MS);
    TimerStart(&appTimer);                         // Start a timer to send data
}

void loop()
{
    delay(1000);
}

Result