Jason Reiss / Mbed OS Dot-Examples_classC-TEST2

Echo example of class C devices receiving downlink and sending as next uplink

Dependencies:   libmDot-mbed5 ISL29011

examples/src/peer_to_peer_example.cpp@17:d4f82e16de5f, 2016-11-01 (annotated)

Committer:
mfiore
Date:
Tue Nov 01 21:07:22 2016 +0000
Revision:
17:d4f82e16de5f
Parent:
16:a3832552dfe1
Child:
21:09d05faf0e13
update to mbed-os 5.1.5 (compatible with latest Dot 2.x library <2.0.16) and add note about Dot library requirement

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Mike Fiore 11:d2e31743433a 1 #include "dot_util.h"
Mike Fiore 14:19fae4509473 2 #include "RadioEvent.h"
Mike Fiore 11:d2e31743433a 3
Mike Fiore 11:d2e31743433a 4 #if ACTIVE_EXAMPLE == PEER_TO_PEER_EXAMPLE
Mike Fiore 11:d2e31743433a 5
mfiore 17:d4f82e16de5f 6 /////////////////////////////////////////////////////////////////////////////
mfiore 17:d4f82e16de5f 7 // -------------------- DOT LIBRARY REQUIRED ------------------------------//
mfiore 17:d4f82e16de5f 8 // * Because these example programs can be used for both mDot and xDot //
mfiore 17:d4f82e16de5f 9 // devices, the LoRa stack is not included. The libmDot library should //
mfiore 17:d4f82e16de5f 10 // be imported if building for mDot devices. The libxDot library //
mfiore 17:d4f82e16de5f 11 // should be imported if building for xDot devices. //
mfiore 17:d4f82e16de5f 12 // * https://developer.mbed.org/teams/MultiTech/code/libmDot-dev-mbed5/ //
mfiore 17:d4f82e16de5f 13 // * https://developer.mbed.org/teams/MultiTech/code/libmDot-mbed5/ //
mfiore 17:d4f82e16de5f 14 // * https://developer.mbed.org/teams/MultiTech/code/libxDot-dev-mbed5/ //
mfiore 17:d4f82e16de5f 15 // * https://developer.mbed.org/teams/MultiTech/code/libxDot-mbed5/ //
mfiore 17:d4f82e16de5f 16 /////////////////////////////////////////////////////////////////////////////
mfiore 17:d4f82e16de5f 17
Mike Fiore 11:d2e31743433a 18 /////////////////////////////////////////////////////////////
Mike Fiore 11:d2e31743433a 19 // * these options must match between the two devices in //
Mike Fiore 11:d2e31743433a 20 // order for communication to be successful
Mike Fiore 11:d2e31743433a 21 /////////////////////////////////////////////////////////////
Mike Fiore 11:d2e31743433a 22 static uint8_t network_address[] = { 0x01, 0x02, 0x03, 0x04 };
Mike Fiore 11:d2e31743433a 23 static uint8_t network_session_key[] = { 0x01, 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04 };
Mike Fiore 11:d2e31743433a 24 static uint8_t data_session_key[] = { 0x01, 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04 };
Mike Fiore 11:d2e31743433a 25
Mike Fiore 11:d2e31743433a 26 mDot* dot = NULL;
Mike Fiore 11:d2e31743433a 27
Mike Fiore 11:d2e31743433a 28 Serial pc(USBTX, USBRX);
Mike Fiore 11:d2e31743433a 29
Mike Fiore 11:d2e31743433a 30 #if defined(TARGET_XDOT_L151CC)
Mike Fiore 11:d2e31743433a 31 I2C i2c(I2C_SDA, I2C_SCL);
Mike Fiore 11:d2e31743433a 32 ISL29011 lux(i2c);
Mike Fiore 11:d2e31743433a 33 #else
Mike Fiore 11:d2e31743433a 34 AnalogIn lux(XBEE_AD0);
Mike Fiore 11:d2e31743433a 35 #endif
Mike Fiore 11:d2e31743433a 36
Mike Fiore 11:d2e31743433a 37 int main() {
Mike Fiore 14:19fae4509473 38 // Custom event handler for automatically displaying RX data
Mike Fiore 11:d2e31743433a 39 RadioEvent events;
Mike Fiore 11:d2e31743433a 40 uint32_t tx_frequency;
Mike Fiore 11:d2e31743433a 41 uint8_t tx_datarate;
Mike Fiore 11:d2e31743433a 42 uint8_t tx_power;
Mike Fiore 11:d2e31743433a 43 uint8_t frequency_band;
Mike Fiore 11:d2e31743433a 44
Mike Fiore 11:d2e31743433a 45 pc.baud(115200);
Mike Fiore 11:d2e31743433a 46
Mike Fiore 11:d2e31743433a 47 mts::MTSLog::setLogLevel(mts::MTSLog::TRACE_LEVEL);
Mike Fiore 11:d2e31743433a 48
Mike Fiore 11:d2e31743433a 49 dot = mDot::getInstance();
Mike Fiore 11:d2e31743433a 50
Mike Fiore 16:a3832552dfe1 51 logInfo("mbed-os library version: %d", MBED_LIBRARY_VERSION);
Mike Fiore 16:a3832552dfe1 52
Mike Fiore 12:ec9768677cea 53 // start from a well-known state
Mike Fiore 12:ec9768677cea 54 logInfo("defaulting Dot configuration");
Mike Fiore 12:ec9768677cea 55 dot->resetConfig();
Mike Fiore 12:ec9768677cea 56
Mike Fiore 11:d2e31743433a 57 // make sure library logging is turned on
Mike Fiore 11:d2e31743433a 58 dot->setLogLevel(mts::MTSLog::INFO_LEVEL);
Mike Fiore 11:d2e31743433a 59
Mike Fiore 11:d2e31743433a 60 // attach the custom events handler
Mike Fiore 11:d2e31743433a 61 dot->setEvents(&events);
Mike Fiore 11:d2e31743433a 62
Mike Fiore 11:d2e31743433a 63 // update configuration if necessary
Mike Fiore 11:d2e31743433a 64 if (dot->getJoinMode() != mDot::PEER_TO_PEER) {
Mike Fiore 11:d2e31743433a 65 logInfo("changing network join mode to PEER_TO_PEER");
Mike Fiore 11:d2e31743433a 66 if (dot->setJoinMode(mDot::PEER_TO_PEER) != mDot::MDOT_OK) {
Mike Fiore 11:d2e31743433a 67 logError("failed to set network join mode to PEER_TO_PEER");
Mike Fiore 11:d2e31743433a 68 }
Mike Fiore 11:d2e31743433a 69 }
Mike Fiore 11:d2e31743433a 70 frequency_band = dot->getFrequencyBand();
Mike Fiore 11:d2e31743433a 71 switch (frequency_band) {
Mike Fiore 11:d2e31743433a 72 case mDot::FB_EU868:
Mike Fiore 11:d2e31743433a 73 // 250kHz channels achieve higher throughput
Mike Fiore 11:d2e31743433a 74 // DR6 : SF7 @ 250kHz
Mike Fiore 11:d2e31743433a 75 // DR0 - DR5 (125kHz channels) available but much slower
Mike Fiore 11:d2e31743433a 76 tx_frequency = 869850000;
Mike Fiore 11:d2e31743433a 77 tx_datarate = mDot::DR6;
Mike Fiore 11:d2e31743433a 78 // the 869850000 frequency is 100% duty cycle if the total power is under 7 dBm - tx power 4 + antenna gain 3 = 7
Mike Fiore 11:d2e31743433a 79 tx_power = 4;
Mike Fiore 11:d2e31743433a 80 break;
Mike Fiore 11:d2e31743433a 81 case mDot::FB_US915:
Mike Fiore 11:d2e31743433a 82 case mDot::FB_AU915:
Mike Fiore 11:d2e31743433a 83 default:
Mike Fiore 11:d2e31743433a 84 // 500kHz channels achieve highest throughput
Mike Fiore 11:d2e31743433a 85 // DR8 : SF12 @ 500kHz
Mike Fiore 11:d2e31743433a 86 // DR9 : SF11 @ 500kHz
Mike Fiore 11:d2e31743433a 87 // DR10 : SF10 @ 500kHz
Mike Fiore 11:d2e31743433a 88 // DR11 : SF9 @ 500kHz
Mike Fiore 11:d2e31743433a 89 // DR12 : SF8 @ 500kHz
Mike Fiore 11:d2e31743433a 90 // DR13 : SF7 @ 500kHz
Mike Fiore 11:d2e31743433a 91 // DR0 - DR3 (125kHz channels) available but much slower
Mike Fiore 11:d2e31743433a 92 tx_frequency = 915500000;
Mike Fiore 11:d2e31743433a 93 tx_datarate = mDot::DR13;
Mike Fiore 11:d2e31743433a 94 // 915 bands have no duty cycle restrictions, set tx power to max
Mike Fiore 11:d2e31743433a 95 tx_power = 20;
Mike Fiore 11:d2e31743433a 96 break;
Mike Fiore 11:d2e31743433a 97 }
Mike Fiore 11:d2e31743433a 98 // in PEER_TO_PEER mode there is no join request/response transaction
Mike Fiore 11:d2e31743433a 99 // as long as both Dots are configured correctly, they should be able to communicate
Mike Fiore 11:d2e31743433a 100 update_peer_to_peer_config(network_address, network_session_key, data_session_key, tx_frequency, tx_datarate, tx_power);
Mike Fiore 11:d2e31743433a 101
Mike Fiore 11:d2e31743433a 102 // save changes to configuration
Mike Fiore 11:d2e31743433a 103 logInfo("saving configuration");
Mike Fiore 11:d2e31743433a 104 if (!dot->saveConfig()) {
Mike Fiore 11:d2e31743433a 105 logError("failed to save configuration");
Mike Fiore 11:d2e31743433a 106 }
Mike Fiore 11:d2e31743433a 107
Mike Fiore 11:d2e31743433a 108 // display configuration
Mike Fiore 11:d2e31743433a 109 display_config();
Mike Fiore 11:d2e31743433a 110
Mike Fiore 11:d2e31743433a 111 #if defined(TARGET_XDOT_L151CC)
Mike Fiore 11:d2e31743433a 112 // configure the ISL29011 sensor on the xDot-DK for continuous ambient light sampling, 16 bit conversion, and maximum range
Mike Fiore 11:d2e31743433a 113 lux.setMode(ISL29011::ALS_CONT);
Mike Fiore 11:d2e31743433a 114 lux.setResolution(ISL29011::ADC_16BIT);
Mike Fiore 11:d2e31743433a 115 lux.setRange(ISL29011::RNG_64000);
Mike Fiore 11:d2e31743433a 116 #endif
Mike Fiore 11:d2e31743433a 117
Mike Fiore 11:d2e31743433a 118 while (true) {
Mike Fiore 11:d2e31743433a 119 uint16_t light;
Mike Fiore 11:d2e31743433a 120 std::vector<uint8_t> tx_data;
Mike Fiore 11:d2e31743433a 121
Mike Fiore 11:d2e31743433a 122 // join network if not joined
Mike Fiore 11:d2e31743433a 123 if (!dot->getNetworkJoinStatus()) {
Mike Fiore 11:d2e31743433a 124 join_network();
Mike Fiore 11:d2e31743433a 125 }
Mike Fiore 11:d2e31743433a 126
Mike Fiore 11:d2e31743433a 127 #if defined(TARGET_XDOT_L151CC)
Mike Fiore 11:d2e31743433a 128 // get the latest light sample and send it to the gateway
Mike Fiore 11:d2e31743433a 129 light = lux.getData();
Mike Fiore 11:d2e31743433a 130 tx_data.push_back((light >> 8) & 0xFF);
Mike Fiore 11:d2e31743433a 131 tx_data.push_back(light & 0xFF);
Mike Fiore 11:d2e31743433a 132 logInfo("light: %lu [0x%04X]", light, light);
Mike Fiore 11:d2e31743433a 133 send_data(tx_data);
Mike Fiore 11:d2e31743433a 134 #else
Mike Fiore 11:d2e31743433a 135 // get some dummy data and send it to the gateway
Mike Fiore 11:d2e31743433a 136 light = lux.read_u16();
Mike Fiore 11:d2e31743433a 137 tx_data.push_back((light >> 8) & 0xFF);
Mike Fiore 11:d2e31743433a 138 tx_data.push_back(light & 0xFF);
Mike Fiore 11:d2e31743433a 139 logInfo("light: %lu [0x%04X]", light, light);
Mike Fiore 11:d2e31743433a 140 send_data(tx_data);
Mike Fiore 11:d2e31743433a 141 #endif
Mike Fiore 11:d2e31743433a 142
Mike Fiore 11:d2e31743433a 143 // the Dot can't sleep in PEER_TO_PEER mode
Mike Fiore 11:d2e31743433a 144 // it must be waiting for data from the other Dot
Mike Fiore 11:d2e31743433a 145 // send data every 5 seconds
Mike Fiore 11:d2e31743433a 146 logInfo("waiting for 5s");
Mike Fiore 11:d2e31743433a 147 wait(5);
Mike Fiore 11:d2e31743433a 148 }
Mike Fiore 11:d2e31743433a 149
Mike Fiore 11:d2e31743433a 150 return 0;
Mike Fiore 11:d2e31743433a 151 }
Mike Fiore 11:d2e31743433a 152
Mike Fiore 11:d2e31743433a 153 #endif
Mike Fiore 11:d2e31743433a 154