Harry Chen
fp
Dependencies: libmDot-mbed5 ISL29011
Diff: examples/src/peer_to_peer_example.cpp
- Revision:
- 11:d2e31743433a
- Child:
- 12:ec9768677cea
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/src/peer_to_peer_example.cpp Tue Oct 11 11:49:56 2016 -0500
@@ -0,0 +1,211 @@
+#include "dot_util.h"
+#include "mDotEvent.h"
+
+#if ACTIVE_EXAMPLE == PEER_TO_PEER_EXAMPLE
+
+/////////////////////////////////////////////////////////////
+// * these options must match between the two devices in //
+// order for communication to be successful
+/////////////////////////////////////////////////////////////
+static uint8_t network_address[] = { 0x01, 0x02, 0x03, 0x04 };
+static uint8_t network_session_key[] = { 0x01, 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04 };
+static uint8_t data_session_key[] = { 0x01, 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04 };
+
+mDot* dot = NULL;
+
+Serial pc(USBTX, USBRX);
+
+#if defined(TARGET_XDOT_L151CC)
+I2C i2c(I2C_SDA, I2C_SCL);
+ISL29011 lux(i2c);
+#else
+AnalogIn lux(XBEE_AD0);
+#endif
+
+// 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) {
+ // print RX data as hexadecimal
+ printf("Rx data: %s\r\n", mts::Text::bin2hexString(info->RxBuffer, info->RxBufferSize).c_str());
+
+ // print RX data as string
+ /*
+ pc.printf("Rx data: ");
+ for (int i = 0; i < info->RxBufferSize; i++) {
+ pc.putc(info->RxBuffer[i]);
+ }
+ pc.printf("\r\n");
+ */
+ }
+ }
+ }
+};
+
+int main() {
+ RadioEvent events;
+ uint32_t tx_frequency;
+ uint8_t tx_datarate;
+ uint8_t tx_power;
+ uint8_t frequency_band;
+
+ pc.baud(115200);
+
+ mts::MTSLog::setLogLevel(mts::MTSLog::TRACE_LEVEL);
+
+ dot = mDot::getInstance();
+
+ // make sure library logging is turned on
+ dot->setLogLevel(mts::MTSLog::INFO_LEVEL);
+
+ // attach the custom events handler
+ dot->setEvents(&events);
+
+ // update configuration if necessary
+ if (dot->getJoinMode() != mDot::PEER_TO_PEER) {
+ logInfo("changing network join mode to PEER_TO_PEER");
+ if (dot->setJoinMode(mDot::PEER_TO_PEER) != mDot::MDOT_OK) {
+ logError("failed to set network join mode to PEER_TO_PEER");
+ }
+ }
+ frequency_band = dot->getFrequencyBand();
+ switch (frequency_band) {
+ case mDot::FB_EU868:
+ // 250kHz channels achieve higher throughput
+ // DR6 : SF7 @ 250kHz
+ // DR0 - DR5 (125kHz channels) available but much slower
+ tx_frequency = 869850000;
+ tx_datarate = mDot::DR6;
+ // the 869850000 frequency is 100% duty cycle if the total power is under 7 dBm - tx power 4 + antenna gain 3 = 7
+ tx_power = 4;
+ break;
+ case mDot::FB_US915:
+ case mDot::FB_AU915:
+ default:
+ // 500kHz channels achieve highest throughput
+ // DR8 : SF12 @ 500kHz
+ // DR9 : SF11 @ 500kHz
+ // DR10 : SF10 @ 500kHz
+ // DR11 : SF9 @ 500kHz
+ // DR12 : SF8 @ 500kHz
+ // DR13 : SF7 @ 500kHz
+ // DR0 - DR3 (125kHz channels) available but much slower
+ tx_frequency = 915500000;
+ tx_datarate = mDot::DR13;
+ // 915 bands have no duty cycle restrictions, set tx power to max
+ tx_power = 20;
+ break;
+ }
+ // in PEER_TO_PEER mode there is no join request/response transaction
+ // as long as both Dots are configured correctly, they should be able to communicate
+ update_peer_to_peer_config(network_address, network_session_key, data_session_key, tx_frequency, tx_datarate, tx_power);
+
+ // save changes to configuration
+ logInfo("saving configuration");
+ if (!dot->saveConfig()) {
+ logError("failed to save configuration");
+ }
+
+ // display configuration
+ display_config();
+
+#if defined(TARGET_XDOT_L151CC)
+ // configure the ISL29011 sensor on the xDot-DK for continuous ambient light sampling, 16 bit conversion, and maximum range
+ lux.setMode(ISL29011::ALS_CONT);
+ lux.setResolution(ISL29011::ADC_16BIT);
+ lux.setRange(ISL29011::RNG_64000);
+#endif
+
+ while (true) {
+ uint16_t light;
+ std::vector<uint8_t> tx_data;
+
+ // join network if not joined
+ if (!dot->getNetworkJoinStatus()) {
+ join_network();
+ }
+
+#if defined(TARGET_XDOT_L151CC)
+ // get the latest light sample and send it to the gateway
+ light = lux.getData();
+ tx_data.push_back((light >> 8) & 0xFF);
+ tx_data.push_back(light & 0xFF);
+ logInfo("light: %lu [0x%04X]", light, light);
+ send_data(tx_data);
+#else
+ // get some dummy data and send it to the gateway
+ light = lux.read_u16();
+ tx_data.push_back((light >> 8) & 0xFF);
+ tx_data.push_back(light & 0xFF);
+ logInfo("light: %lu [0x%04X]", light, light);
+ send_data(tx_data);
+#endif
+
+ // the Dot can't sleep in PEER_TO_PEER mode
+ // it must be waiting for data from the other Dot
+ // send data every 5 seconds
+ logInfo("waiting for 5s");
+ wait(5);
+ }
+
+ return 0;
+}
+
+#endif
+