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OTAA_Sending_Hello_LoRa_433MHz.ino
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OTAA_Sending_Hello_LoRa_433MHz.ino
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/*******************************************************************************
* The Things Network - OTAA Feather M0 433 MHz
*
* Copyright (c) 2015 Thomas Telkamp and Matthijs Kooijman
* Copyright (c) 2018 Terry Moore, MCCI
*
* Permission is hereby granted, free of charge, to anyone
* obtaining a copy of this document and accompanying files,
* to do whatever they want with them without any restriction,
* including, but not limited to, copying, modification and redistribution.
* NO WARRANTY OF ANY KIND IS PROVIDED.
*
*
* Reference: https://github.com/mcci-catena/arduino-lmic
https://github.com/OndrejKnebl/TTNv3-LoRaVSB/blob/main/OTAA_Sending_Hello_LoRa/OTAA_Sending_Hello_LoRa.ino
*
* Modified for Hello, LoRa!, 7. 5. 2024
*******************************************************************************/
#include <lmic.h>
#include <hal/hal.h>
#include <SPI.h>
//--------------------------------------- Here change your keys -------------------------------------------------
static const u1_t PROGMEM APPEUI[8]={ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; // AppEUI, LSB
void os_getArtEui (u1_t* buf) { memcpy_P(buf, APPEUI, 8);}
static const u1_t PROGMEM DEVEUI[8]={ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; // DevEUI, LSB
void os_getDevEui (u1_t* buf) { memcpy_P(buf, DEVEUI, 8);}
static const u1_t PROGMEM APPKEY[16] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; // AppKey, MSB
void os_getDevKey (u1_t* buf) { memcpy_P(buf, APPKEY, 16);}
//---------------------------------------------------------------------------------------------------------------
const lmic_pinmap lmic_pins = { // Pin mapping for the Adafruit Feather M0
.nss = 8,
.rxtx = LMIC_UNUSED_PIN,
.rst = 4,
.dio = {3, 6, LMIC_UNUSED_PIN},
.rxtx_rx_active = 0,
.rssi_cal = 8,
.spi_freq = 8000000,
};
static osjob_t sendjob; // Job
static uint8_t mydata[] = "Hello, LoRa!"; // Data
const unsigned TX_INTERVAL = 30; // Transmission interval in seconds
void printHex2(unsigned v) {
v &= 0xff;
if (v < 16)
Serial.print('0');
Serial.print(v, HEX);
}
void onEvent (ev_t ev) {
Serial.print(os_getTime());
Serial.print(": ");
switch(ev) {
case EV_SCAN_TIMEOUT:
Serial.println(F("EV_SCAN_TIMEOUT"));
break;
case EV_BEACON_FOUND:
Serial.println(F("EV_BEACON_FOUND"));
break;
case EV_BEACON_MISSED:
Serial.println(F("EV_BEACON_MISSED"));
break;
case EV_BEACON_TRACKED:
Serial.println(F("EV_BEACON_TRACKED"));
break;
case EV_JOINING:
Serial.println(F("EV_JOINING"));
break;
case EV_JOINED:
Serial.println(F("EV_JOINED"));
{
u4_t netid = 0;
devaddr_t devaddr = 0;
u1_t nwkKey[16];
u1_t artKey[16];
LMIC_getSessionKeys(&netid, &devaddr, nwkKey, artKey);
Serial.print("netid: ");
Serial.println(netid, DEC);
Serial.print("devaddr: ");
Serial.println(devaddr, HEX);
Serial.print("AppSKey: ");
for (size_t i=0; i<sizeof(artKey); ++i) {
if (i != 0)
Serial.print("-");
printHex2(artKey[i]);
}
Serial.println("");
Serial.print("NwkSKey: ");
for (size_t i=0; i<sizeof(nwkKey); ++i) {
if (i != 0)
Serial.print("-");
printHex2(nwkKey[i]);
}
Serial.println();
}
LMIC_setLinkCheckMode(0); // Disable link check validation
LMIC.dn2Dr = DR_SF9; // TTS uses SF9 for its RX2 window.
LMIC_setDrTxpow(DR_SF9,10); // Set data rate and transmit power for uplink
LMIC_setAdrMode(0); // Adaptive data rate disabled
break;
case EV_JOIN_FAILED:
Serial.println(F("EV_JOIN_FAILED"));
break;
case EV_REJOIN_FAILED:
Serial.println(F("EV_REJOIN_FAILED"));
break;
case EV_TXCOMPLETE:
Serial.println(F("EV_TXCOMPLETE (includes waiting for RX windows)"));
if (LMIC.txrxFlags & TXRX_ACK)
Serial.println(F("Received ack"));
if (LMIC.dataLen) {
Serial.print(F("Received "));
Serial.print(LMIC.dataLen);
Serial.println(F(" bytes of payload"));
}
os_setTimedCallback(&sendjob, os_getTime()+sec2osticks(TX_INTERVAL), do_send); // Schedule next transmission
break;
case EV_LOST_TSYNC:
Serial.println(F("EV_LOST_TSYNC"));
break;
case EV_RESET:
Serial.println(F("EV_RESET"));
break;
case EV_RXCOMPLETE:
Serial.println(F("EV_RXCOMPLETE")); // data received in ping slot
break;
case EV_LINK_DEAD:
Serial.println(F("EV_LINK_DEAD"));
break;
case EV_LINK_ALIVE:
Serial.println(F("EV_LINK_ALIVE"));
break;
case EV_TXSTART:
Serial.println(F("EV_TXSTART"));
break;
case EV_TXCANCELED:
Serial.println(F("EV_TXCANCELED"));
break;
case EV_RXSTART:
/* do not print anything -- it wrecks timing */
break;
case EV_JOIN_TXCOMPLETE:
Serial.println(F("EV_JOIN_TXCOMPLETE: no JoinAccept"));
break;
default:
Serial.print(F("Unknown event: "));
Serial.println((unsigned) ev);
break;
}
}
void do_send(osjob_t* j){
if(!(LMIC.opmode & OP_TXRXPEND)){ // Check if there is not a current TX/RX job running
Serial.println("Sending - Hello, LoRa!"); // Print to Serial
LMIC_setTxData2(1, mydata, sizeof(mydata)-1, 0); // Prepare upstream data transmission at the next possible time.
}
}
void setup() {
Serial.begin(9600);
Serial.println(F("Starting"));
os_init();
LMIC_reset();
//EU433
LMIC_setupChannel(0, 433175000, DR_RANGE_MAP(DR_SF12, DR_SF7), BAND_CENTI); // g-band
LMIC_setupChannel(1, 433375000, DR_RANGE_MAP(DR_SF12, DR_SF7), BAND_CENTI); // g-band
LMIC_setupChannel(2, 433575000, DR_RANGE_MAP(DR_SF12, DR_SF7), BAND_CENTI); // g-band
LMIC_setupChannel(3, 433775000, DR_RANGE_MAP(DR_SF12, DR_SF7), BAND_CENTI); // g-band
LMIC_setupChannel(4, 433975000, DR_RANGE_MAP(DR_SF12, DR_SF7), BAND_CENTI); // g-band
LMIC_setupChannel(5, 434175000, DR_RANGE_MAP(DR_SF12, DR_SF7), BAND_CENTI); // g-band
LMIC_setupChannel(6, 434375000, DR_RANGE_MAP(DR_SF12, DR_SF7), BAND_CENTI); // g-band
LMIC_setupChannel(7, 434575000, DR_RANGE_MAP(DR_SF12, DR_SF7), BAND_CENTI); // g-band
LMIC_setLinkCheckMode(0); // Disable link check validation
LMIC.dn2Dr = DR_SF9; // TTS uses SF9 for its RX2 window.
LMIC_setDrTxpow(DR_SF7,10); // Set data rate and transmit power for uplink
LMIC_setAdrMode(1); // Adaptive data rate disabled
LMIC_setClockError(MAX_CLOCK_ERROR * 1 / 100);
do_send(&sendjob); // Start sendjob
}
void loop() {
os_runloop_once();
}