I am programming my RAK3172 using RUI3 firmware. I am unable to set my device to SF8 125Khz in US915 frequency band. Even after setting the DR to 2(as specified in Arduino API page) while reading the configuration it is showing 0.
Is there a way for me to set the DR of the RAK3172 to SF8 125KHz in US915 frequency?
Hi @Steve1 ,
I did some test and SF8 is working on my RAK3172 RUI3 firmware. Btw, I am using the latest version RUI3 version 4.0. Here’s my result on TTN.
Here’s the modified LoRaWAN OTAA example I used:
/***
This example shows LoRaWan protocol joining the network in OTAA mode, class A, region EU868.
Device will send uplink every 20 seconds.
***/
#define OTAA_PERIOD (20000)
/*************************************
LoRaWAN band setting:
RAK_REGION_EU433
RAK_REGION_CN470
RAK_REGION_RU864
RAK_REGION_IN865
RAK_REGION_EU868
RAK_REGION_US915
RAK_REGION_AU915
RAK_REGION_KR920
RAK_REGION_AS923
*************************************/
#define OTAA_BAND (RAK_REGION_US915)
#define OTAA_DEVEUI {0x70, 0xB3, 0xD5, 0x7E, 0xD0, 0x05, 0x9D, 0x63}
#define OTAA_APPEUI {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
#define OTAA_APPKEY {0xBA, 0x83, 0x8A, 0xAF, 0x31, 0xDB, 0x34, 0xFF, 0xEC, 0x95, 0x92, 0x86, 0x00, 0x06, 0xA5, 0x87}
/** Packet buffer for sending */
uint8_t collected_data[64] = { 0 };
void recvCallback(SERVICE_LORA_RECEIVE_T * data)
{
if (data->BufferSize > 0) {
Serial.println("Something received!");
for (int i = 0; i < data->BufferSize; i++) {
Serial.printf("%x", data->Buffer[i]);
}
Serial.print("\r\n");
}
}
void joinCallback(int32_t status)
{
Serial.printf("Join status: %d\r\n", status);
}
void sendCallback(int32_t status)
{
if (status == 0) {
Serial.println("Successfully sent");
} else {
Serial.println("Sending failed");
}
}
void setup()
{
Serial.begin(115200, RAK_AT_MODE);
Serial.println("RAKwireless LoRaWan OTAA Example");
Serial.println("------------------------------------------------------");
if (api.lorawan.nwm.get() != 1)
{
Serial.printf("Set Node device work mode %s\r\n",
api.lorawan.nwm.set(1) ? "Success" : "Fail");
api.system.reboot();
}
// OTAA Device EUI MSB first
uint8_t node_device_eui[8] = OTAA_DEVEUI;
// OTAA Application EUI MSB first
uint8_t node_app_eui[8] = OTAA_APPEUI;
// OTAA Application Key MSB first
uint8_t node_app_key[16] = OTAA_APPKEY;
if (!api.lorawan.appeui.set(node_app_eui, 8)) {
Serial.printf("LoRaWan OTAA - set application EUI is incorrect! \r\n");
return;
}
if (!api.lorawan.appkey.set(node_app_key, 16)) {
Serial.printf("LoRaWan OTAA - set application key is incorrect! \r\n");
return;
}
if (!api.lorawan.deui.set(node_device_eui, 8)) {
Serial.printf("LoRaWan OTAA - set device EUI is incorrect! \r\n");
return;
}
if (!api.lorawan.band.set(OTAA_BAND)) {
Serial.printf("LoRaWan OTAA - set band is incorrect! \r\n");
return;
}
if (!api.lorawan.deviceClass.set(RAK_LORA_CLASS_A)) {
Serial.printf("LoRaWan OTAA - set device class is incorrect! \r\n");
return;
}
if (!api.lorawan.njm.set(RAK_LORA_OTAA)) // Set the network join mode to OTAA
{
Serial.printf("LoRaWan OTAA - set network join mode is incorrect! \r\n");
return;
}
if (!api.lorawan.rety.set(1)) {
Serial.printf("LoRaWan OTAA - set retry times is incorrect! \r\n");
return;
}
if (!api.lorawan.cfm.set(0)) {
Serial.printf("LoRaWan OTAA - set confirm mode is incorrect! \r\n");
return;
}
if (!api.lorawan.adr.set(0)) {
Serial.printf("LoRaWan OTAA - set adaptive data rate is incorrect! \r\n");
return;
}
Serial.printf("Set the data rate %s\r\n", api.lorawan.dr.set(2) ? "Success" : "Fail");
uint16_t maskBuff = 0x0002;
Serial.printf("Set channel mask %s\r\n", api.lorawan.mask.set(&maskBuff) ? "Success" : "Fail");
if (!api.lorawan.join()) // Join to Gateway
{
Serial.printf("LoRaWan OTAA - join fail! \r\n");
return;
}
/** Wait for Join success */
while (api.lorawan.njs.get() == 0) {
Serial.print("Wait for LoRaWAN join...");
api.lorawan.join();
delay(10000);
}
/** Check LoRaWan Status*/
Serial.printf("Duty cycle is %s\r\n", api.lorawan.dcs.get() ? "ON" : "OFF"); // Check Duty Cycle status
Serial.printf("Packet is %s\r\n", api.lorawan.cfm.get() ? "CONFIRMED" : "UNCONFIRMED"); // Check Confirm status
uint8_t assigned_dev_addr[4] = { 0 };
api.lorawan.daddr.get(assigned_dev_addr, 4);
Serial.printf("Device Address is %02X%02X%02X%02X\r\n", assigned_dev_addr[0], assigned_dev_addr[1], assigned_dev_addr[2], assigned_dev_addr[3]); // Check Device Address
Serial.printf("Uplink period is %ums\r\n", OTAA_PERIOD);
Serial.println("");
api.lorawan.registerRecvCallback(recvCallback);
api.lorawan.registerJoinCallback(joinCallback);
api.lorawan.registerSendCallback(sendCallback);
}
void uplink_routine()
{
/** Payload of Uplink */
uint8_t data_len = 0;
collected_data[data_len++] = (uint8_t) 't';
collected_data[data_len++] = (uint8_t) 'e';
collected_data[data_len++] = (uint8_t) 's';
collected_data[data_len++] = (uint8_t) 't';
Serial.println("Data Packet:");
for (int i = 0; i < data_len; i++) {
Serial.printf("0x%02X ", collected_data[i]);
}
Serial.println("");
/** Send the data package */
if (api.lorawan.send(data_len, (uint8_t *) & collected_data, 2, true, 1)) {
Serial.println("Sending is requested");
} else {
Serial.println("Sending failed");
}
}
void loop()
{
static uint64_t last = 0;
static uint64_t elapsed;
if ((elapsed = millis() - last) > OTAA_PERIOD) {
uplink_routine();
last = millis();
}
//Serial.printf("Try sleep %ums..", OTAA_PERIOD);
api.system.sleep.all(OTAA_PERIOD);
//Serial.println("Wakeup..");
}