Hello, I am using a Heltec Wireless Stick Lite V3 development board and I want to connect the node to my gateway. First of all, I have already done the corresponding node-to-node tests and it worked. However, when I tried to use the LORAWAN protocol, I was unable to connect it following the steps from the Heltec information platform with the following code:
I am using the following:
1.-Heltec ESP32 Dev-Boards 2.1.1
2.-board Wireless Stick Lite(V3)
3.-https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json
- This is the sample code I use for the connection
/* Heltec Automation LoRaWAN communication example
Function:
- Upload node data to the server using the standard LoRaWAN protocol.
Description:
- Communicate using LoRaWAN protocol.
HelTec AutoMation, Chengdu, China
成都惠利特自动化科技有限公司
*/
#include “LoRaWan_APP.h”
/* OTAA para*/
uint8_t devEui[] = { 0x70, 0xB3, 0xD5, 0x7E, 0xD0, 0x06, 0x53, 0xC8 };
uint8_t appEui[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
uint8_t appKey[] = { 0x74, 0xD6, 0x6E, 0x63, 0x45, 0x82, 0x48, 0x27, 0xFE, 0xC5, 0xB7, 0x70, 0xBA, 0x2B, 0x50, 0x45 };
/* ABP para*/
uint8_t nwkSKey[] = { 0x15, 0xb1, 0xd0, 0xef, 0xa4, 0x63, 0xdf, 0xbe, 0x3d, 0x11, 0x18, 0x1e, 0x1e, 0xc7, 0xda,0x85 };
uint8_t appSKey[] = { 0xd7, 0x2c, 0x78, 0x75, 0x8c, 0xdc, 0xca, 0xbf, 0x55, 0xee, 0x4a, 0x77, 0x8d, 0x16, 0xef,0x67 };
uint32_t devAddr = ( uint32_t )0x007e6ae1;
/LoraWan channelsmask, default channels 0-7/
uint16_t userChannelsMask[6]={ 0x00FF,0x0000,0x0000,0x0000,0x0000,0x0000 };
/LoraWan region, select in arduino IDE tools/
LoRaMacRegion_t loraWanRegion = ACTIVE_REGION;
/LoraWan Class, Class A and Class C are supported/
DeviceClass_t loraWanClass = CLASS_A;
/the application data transmission duty cycle. value in [ms]./
uint32_t appTxDutyCycle = 15000;
/OTAA or ABP/
bool overTheAirActivation = true;
/ADR enable/
bool loraWanAdr = true;
/* Indicates if the node is sending confirmed or unconfirmed messages */
bool isTxConfirmed = true;
/* Application port */
uint8_t appPort = 2;
/*!
Number of trials to transmit the frame, if the LoRaMAC layer did not
receive an acknowledgment. The MAC performs a datarate adaptation,
according to the LoRaWAN Specification V1.0.2, chapter 18.4, according
to the following table:
Transmission nb | Data Rate
----------------|-----------
1 (first) | DR
2 | DR
3 | max(DR-1,0)
4 | max(DR-1,0)
5 | max(DR-2,0)
6 | max(DR-2,0)
7 | max(DR-3,0)
8 | max(DR-3,0)
Note, that if NbTrials is set to 1 or 2, the MAC will not decrease
the datarate, in case the LoRaMAC layer did not receive an acknowledgment
*/
uint8_t confirmedNbTrials = 4;
/* Prepares the payload of the frame */
static void prepareTxFrame( uint8_t port )
{
/*appData size is LORAWAN_APP_DATA_MAX_SIZE which is defined in “commissioning.h”.
*appDataSize max value is LORAWAN_APP_DATA_MAX_SIZE.
*if enabled AT, don’t modify LORAWAN_APP_DATA_MAX_SIZE, it may cause system hanging or failure.
*if disabled AT, LORAWAN_APP_DATA_MAX_SIZE can be modified, the max value is reference to lorawan region and SF.
*for example, if use REGION_CN470,
*the max value for different DR can be found in MaxPayloadOfDatarateCN470 refer to DataratesCN470 and BandwidthsCN470 in “RegionCN470.h”.
*/
appDataSize = 4; appData[0] = 0x00; appData[1] = 0x01; appData[2] = 0x02; appData[3] = 0x03;}
//if true, next uplink will add MOTE_MAC_DEVICE_TIME_REQ
void setup() {
Serial.begin(115200);
Mcu.begin(HELTEC_BOARD,SLOW_CLK_TPYE);
}
void loop()
{
switch( deviceState )
{
case DEVICE_STATE_INIT: {#if(LORAWAN_DEVEUI_AUTO)
LoRaWAN.generateDeveuiByChipID();#endif
LoRaWAN.init(loraWanClass,loraWanRegion); //both set join DR and DR when ADR off LoRaWAN.setDefaultDR(3); break; } case DEVICE_STATE_JOIN: { LoRaWAN.join(); break; } case DEVICE_STATE_SEND: { prepareTxFrame( appPort ); LoRaWAN.send(); deviceState = DEVICE_STATE_CYCLE; break; } case DEVICE_STATE_CYCLE: { // Schedule next packet transmission txDutyCycleTime = appTxDutyCycle + randr( -APP_TX_DUTYCYCLE_RND, APP_TX_DUTYCYCLE_RND ); LoRaWAN.cycle(txDutyCycleTime); deviceState = DEVICE_STATE_SLEEP; break; } case DEVICE_STATE_SLEEP: { LoRaWAN.sleep(loraWanClass); break; } default: { deviceState = DEVICE_STATE_INIT; break; }}
}
2024-09-10T05:00:00Z