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Dependencies: libmDot-dev-mbed2-deprecated mbed-rtos mbed
Fork of mDot_LoRa_PEER_TO_PEER by
This example will setup a peer to peer node, copy program to two dots Uplink packets will be sent every 5 seconds, however communication is half-duplex An mDot cannot receive while transmitting
This example also demonstrates asynchronous receive through libmDot using the event framework.
Received packets will be sent to the Serial port on pins 2 and 3 baud rate for serial ports is set to 115200
main.cpp
- Committer:
- jreiss
- Date:
- 2016-08-06
- Revision:
- 7:30602a4a9902
- Parent:
- 6:ebaf55285f73
- Child:
- 8:3336880e91d6
File content as of revision 7:30602a4a9902:
#include "mbed.h"
#include "mDot.h"
#include "mDotEvent.h"
#include "MTSLog.h"
#include <string>
#include <vector>
#include <algorithm>
// This example will setup a peer to peer node, copy program to two dots
// Uplink packets will be sent every 5 seconds, however communication is half-duplex
// An mDot cannot receive while transmitting
// Received packets will be sent to the Serial port on pins 2 and 3
// baud rate for serial ports is set to 115200
Serial _serial(XBEE_DOUT, XBEE_DIN);
Serial debug(USBTX, USBRX);
static uint8_t config_network_addr[] = { 0x01, 0x02, 0x03, 0x04 };
static uint8_t config_network_nskey[] = { 0x01, 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04 };
static uint8_t config_network_dskey[] = { 0x01, 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04 };
// Custom event handler for receiving Class C packets
class RadioEvent : public mDotEvent
{
public:
RadioEvent() {}
virtual ~RadioEvent() {}
/*!
* MAC layer event callback prototype.
*
* \param [IN] flags Bit field indicating the MAC events occurred
* \param [IN] info Details about MAC events occurred
*/
virtual void MacEvent(LoRaMacEventFlags* flags, LoRaMacEventInfo* info) {
if (mts::MTSLog::getLogLevel() == mts::MTSLog::TRACE_LEVEL) {
std::string msg = "OK";
switch (info->Status) {
case LORAMAC_EVENT_INFO_STATUS_ERROR:
msg = "ERROR";
break;
case LORAMAC_EVENT_INFO_STATUS_TX_TIMEOUT:
msg = "TX_TIMEOUT";
break;
case LORAMAC_EVENT_INFO_STATUS_RX_TIMEOUT:
msg = "RX_TIMEOUT";
break;
case LORAMAC_EVENT_INFO_STATUS_RX_ERROR:
msg = "RX_ERROR";
break;
case LORAMAC_EVENT_INFO_STATUS_JOIN_FAIL:
msg = "JOIN_FAIL";
break;
case LORAMAC_EVENT_INFO_STATUS_DOWNLINK_FAIL:
msg = "DOWNLINK_FAIL";
break;
case LORAMAC_EVENT_INFO_STATUS_ADDRESS_FAIL:
msg = "ADDRESS_FAIL";
break;
case LORAMAC_EVENT_INFO_STATUS_MIC_FAIL:
msg = "MIC_FAIL";
break;
default:
break;
}
logTrace("Event: %s", msg.c_str());
logTrace("Flags Tx: %d Rx: %d RxData: %d RxSlot: %d LinkCheck: %d JoinAccept: %d",
flags->Bits.Tx, flags->Bits.Rx, flags->Bits.RxData, flags->Bits.RxSlot, flags->Bits.LinkCheck, flags->Bits.JoinAccept);
logTrace("Info: Status: %d ACK: %d Retries: %d TxDR: %d RxPort: %d RxSize: %d RSSI: %d SNR: %d Energy: %d Margin: %d Gateways: %d",
info->Status, info->TxAckReceived, info->TxNbRetries, info->TxDatarate, info->RxPort, info->RxBufferSize,
info->RxRssi, info->RxSnr, info->Energy, info->DemodMargin, info->NbGateways);
}
if (flags->Bits.Rx) {
logDebug("Rx %d bytes", info->RxBufferSize);
if (info->RxBufferSize > 0) {
for (int i = 0; i < info->RxBufferSize; i++) {
_serial.putc(info->RxBuffer[i]);
}
}
delete[] info->RxBuffer;
}
}
};
int main()
{
int32_t ret;
mDot* dot;
std::vector<uint8_t> data;
std::string data_str = "hello!";
RadioEvent events;
debug.baud(115200);
_serial.baud(115200);
// get a mDot handle
dot = mDot::getInstance();
// Set custom events handler for receiving Class C packets
dot->setEvents(&events);
// print library version information
logInfo("version: %s", dot->getId().c_str());
//*******************************************
// configuration
//*******************************************
// reset to default config so we know what state we're in
dot->resetConfig();
dot->setLogLevel(mts::MTSLog::TRACE_LEVEL);
// set up the mDot with our network information: Network Address and Session Keys must match on each device
// these can all be saved in NVM so they don't need to be set every time - see mDot::saveConfig()
std::vector<uint8_t> temp;
for (int i = 0; i < 4; i++) {
temp.push_back(config_network_addr[i]);
}
logInfo("setting network addr");
if ((ret = dot->setNetworkAddress(temp)) != mDot::MDOT_OK) {
logError("failed to set network name %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
}
temp.clear();
for (int i = 0; i < 16; i++) {
temp.push_back(config_network_nskey[i]);
}
logInfo("setting network password");
if ((ret = dot->setNetworkSessionKey(temp)) != mDot::MDOT_OK) {
logError("failed to set network password %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
}
temp.clear();
for (int i = 0; i < 16; i++) {
temp.push_back(config_network_dskey[i]);
}
logInfo("setting network password");
if ((ret = dot->setDataSessionKey(temp)) != mDot::MDOT_OK) {
logError("failed to set network password %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
}
logInfo("setting TX frequency");
if ((ret = dot->setTxFrequency(915500000)) != mDot::MDOT_OK) {
logError("failed to set TX frequency %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
}
// a higher spreading factor allows for longer range but lower throughput
// in the 915 (US) frequency band, DR8-DR13
logInfo("setting TX spreading factor");
if ((ret = dot->setTxDataRate(mDot::DR13)) != mDot::MDOT_OK) {
logError("failed to set TX datarate %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
}
// set join mode to AUTO_OTA so the mDot doesn't have to rejoin after sleeping
logInfo("setting join mode to AUTO_OTA");
if ((ret = dot->setJoinMode(mDot::PEER_TO_PEER)) != mDot::MDOT_OK) {
logError("failed to set join mode %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
}
// save this configuration to the mDot's NVM
logInfo("saving config");
if (! dot->saveConfig()) {
logError("failed to save configuration");
}
//*******************************************
// end of configuration
//*******************************************
// format data for sending to the gateway
for (std::string::iterator it = data_str.begin(); it != data_str.end(); it++)
data.push_back((uint8_t) *it);
while(true) {
// send the data
if ((ret = dot->send(data)) != mDot::MDOT_OK) {
logError("failed to send %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
} else {
logInfo("successfully sent data to peer");
}
wait(5.0);
}
return 0;
}
