Henry Greenslade / GateMonitorOP

Otago Polytech Gate Monitor

Dependencies:   libmDot-mbed5 DHT22

code/main.cpp@0:3a030a59bf04, 2019-09-16 (annotated)

Committer:
GreensladeNZ
Date:
Mon Sep 16 03:56:51 2019 +0000
Revision:
0:3a030a59bf04
First post

Who changed what in which revision?

UserRevisionLine numberNew contents of line
GreensladeNZ 0:3a030a59bf04 1 /*
GreensladeNZ 0:3a030a59bf04 2 This program:
GreensladeNZ 0:3a030a59bf04 3 - connects to a LoRaWAN by ABP/MANUAL
GreensladeNZ 0:3a030a59bf04 4 - reads light data from an analogue Light Dependent Resistor
GreensladeNZ 0:3a030a59bf04 5 - reads temperaure and humidity from a DHT22 sensor
GreensladeNZ 0:3a030a59bf04 6 - sends the recorded data onto the LoRaWAN
GreensladeNZ 0:3a030a59bf04 7 - sets the mDot to sleep
GreensladeNZ 0:3a030a59bf04 8 - repeats these operations in a loop
GreensladeNZ 0:3a030a59bf04 9 */
GreensladeNZ 0:3a030a59bf04 10
GreensladeNZ 0:3a030a59bf04 11 #include "mbed.h"
GreensladeNZ 0:3a030a59bf04 12 #include "mDot.h"
GreensladeNZ 0:3a030a59bf04 13 #include "ChannelPlans.h"
GreensladeNZ 0:3a030a59bf04 14 #include "MTSLog.h"
GreensladeNZ 0:3a030a59bf04 15 #include "dot_util.h"
GreensladeNZ 0:3a030a59bf04 16 #include <string>
GreensladeNZ 0:3a030a59bf04 17 #include <vector>
GreensladeNZ 0:3a030a59bf04 18 #include <algorithm>
GreensladeNZ 0:3a030a59bf04 19 #include <sstream>
GreensladeNZ 0:3a030a59bf04 20
GreensladeNZ 0:3a030a59bf04 21 //analogue ldr pin (A0 on UDK 2)
GreensladeNZ 0:3a030a59bf04 22 DigitalIn gateopen(PA_3);
GreensladeNZ 0:3a030a59bf04 23
GreensladeNZ 0:3a030a59bf04 24
GreensladeNZ 0:3a030a59bf04 25 // these options must match the settings on your Conduit
GreensladeNZ 0:3a030a59bf04 26 /*
GreensladeNZ 0:3a030a59bf04 27 Current test settings
GreensladeNZ 0:3a030a59bf04 28 dev address: 064ac45b
GreensladeNZ 0:3a030a59bf04 29 net sess key: 5526fe0a28a974eb070f7b450433c35c
GreensladeNZ 0:3a030a59bf04 30 app sess key: f42ea6890802d8f2c3e9d0d9f37c80a6
GreensladeNZ 0:3a030a59bf04 31 */
GreensladeNZ 0:3a030a59bf04 32 //device address
GreensladeNZ 0:3a030a59bf04 33 static uint8_t network_address[] = { FILMEIN };
GreensladeNZ 0:3a030a59bf04 34 //network session key
GreensladeNZ 0:3a030a59bf04 35 static uint8_t network_session_key[] = { FILMEIN };
GreensladeNZ 0:3a030a59bf04 36 //application sesssion or data session key
GreensladeNZ 0:3a030a59bf04 37 static uint8_t data_session_key[] = { FILMEIN };
GreensladeNZ 0:3a030a59bf04 38 static uint8_t frequency_sub_band = 2; //VFI
GreensladeNZ 0:3a030a59bf04 39 static bool public_network = true;
GreensladeNZ 0:3a030a59bf04 40 //enable receipt of ackknowledge packets 0 = No, 1 = Yes
GreensladeNZ 0:3a030a59bf04 41 static uint8_t ack = 0;
GreensladeNZ 0:3a030a59bf04 42 //adaptive data rate enabler
GreensladeNZ 0:3a030a59bf04 43 static bool adr = false;
GreensladeNZ 0:3a030a59bf04 44 static bool oldstate;
GreensladeNZ 0:3a030a59bf04 45
GreensladeNZ 0:3a030a59bf04 46 //USB serial
GreensladeNZ 0:3a030a59bf04 47 Serial pc(USBTX, USBRX);
GreensladeNZ 0:3a030a59bf04 48
GreensladeNZ 0:3a030a59bf04 49 //get ourselves an mDot pointer - we will assign to it in main()
GreensladeNZ 0:3a030a59bf04 50 mDot* dot = NULL;
GreensladeNZ 0:3a030a59bf04 51
GreensladeNZ 0:3a030a59bf04 52 //converts value to string
GreensladeNZ 0:3a030a59bf04 53 template <typename T>
GreensladeNZ 0:3a030a59bf04 54 string ToString(T val) {
GreensladeNZ 0:3a030a59bf04 55 stringstream stream;
GreensladeNZ 0:3a030a59bf04 56 stream << val;
GreensladeNZ 0:3a030a59bf04 57 return stream.str();
GreensladeNZ 0:3a030a59bf04 58 }
GreensladeNZ 0:3a030a59bf04 59
GreensladeNZ 0:3a030a59bf04 60 int main() {
GreensladeNZ 0:3a030a59bf04 61 gateopen.mode(PullUp);
GreensladeNZ 0:3a030a59bf04 62 //setting serial rate
GreensladeNZ 0:3a030a59bf04 63 pc.baud(9600);
GreensladeNZ 0:3a030a59bf04 64
GreensladeNZ 0:3a030a59bf04 65 // use AU915 plan
GreensladeNZ 0:3a030a59bf04 66 lora::ChannelPlan* plan = new lora::ChannelPlan_AU915();
GreensladeNZ 0:3a030a59bf04 67 assert(plan);
GreensladeNZ 0:3a030a59bf04 68 // get a mDot handle with the plan we chose
GreensladeNZ 0:3a030a59bf04 69 dot = mDot::getInstance(plan);
GreensladeNZ 0:3a030a59bf04 70 assert(dot);
GreensladeNZ 0:3a030a59bf04 71
GreensladeNZ 0:3a030a59bf04 72 if (!dot->getStandbyFlag()) {
GreensladeNZ 0:3a030a59bf04 73 logInfo("mbed-os library version: %d", MBED_LIBRARY_VERSION);
GreensladeNZ 0:3a030a59bf04 74
GreensladeNZ 0:3a030a59bf04 75 // start from a well-known state
GreensladeNZ 0:3a030a59bf04 76 logInfo("defaulting Dot configuration");
GreensladeNZ 0:3a030a59bf04 77 dot->resetConfig();
GreensladeNZ 0:3a030a59bf04 78 dot->resetNetworkSession();
GreensladeNZ 0:3a030a59bf04 79
GreensladeNZ 0:3a030a59bf04 80 // make sure library logging is turned on
GreensladeNZ 0:3a030a59bf04 81 dot->setLogLevel(mts::MTSLog::DEBUG_LEVEL);
GreensladeNZ 0:3a030a59bf04 82
GreensladeNZ 0:3a030a59bf04 83 // update configuration if necessary
GreensladeNZ 0:3a030a59bf04 84 if (dot->getJoinMode() != mDot::MANUAL) {
GreensladeNZ 0:3a030a59bf04 85 logInfo("changing network join mode to MANUAL");
GreensladeNZ 0:3a030a59bf04 86 if (dot->setJoinMode(mDot::MANUAL) != mDot::MDOT_OK) {
GreensladeNZ 0:3a030a59bf04 87 logError("failed to set network join mode to MANUAL");
GreensladeNZ 0:3a030a59bf04 88 }
GreensladeNZ 0:3a030a59bf04 89 }
GreensladeNZ 0:3a030a59bf04 90 // in MANUAL join mode there is no join request/response transaction
GreensladeNZ 0:3a030a59bf04 91 // as long as the Dot is configured correctly and provisioned correctly on the gateway, it should be able to communicate
GreensladeNZ 0:3a030a59bf04 92 // network address - 4 bytes (00000001 - FFFFFFFE)
GreensladeNZ 0:3a030a59bf04 93 // network session key - 16 bytes
GreensladeNZ 0:3a030a59bf04 94 // data session key - 16 bytes
GreensladeNZ 0:3a030a59bf04 95 // to provision your Dot with a Conduit gateway, follow the following steps
GreensladeNZ 0:3a030a59bf04 96 // * ssh into the Conduit
GreensladeNZ 0:3a030a59bf04 97 // * provision the Dot using the lora-query application: http://www.multitech.net/developer/software/lora/lora-network-server/
GreensladeNZ 0:3a030a59bf04 98 // lora-query -a 01020304 A 0102030401020304 <your Dot's device ID> 01020304010203040102030401020304 01020304010203040102030401020304
GreensladeNZ 0:3a030a59bf04 99 // * if you change the network address, network session key, or data session key, make sure you update them on the gateway
GreensladeNZ 0:3a030a59bf04 100 // to provision your Dot with a 3rd party gateway, see the gateway or network provider documentation
GreensladeNZ 0:3a030a59bf04 101 update_manual_config(network_address, network_session_key, data_session_key, frequency_sub_band, public_network, ack);
GreensladeNZ 0:3a030a59bf04 102
GreensladeNZ 0:3a030a59bf04 103
GreensladeNZ 0:3a030a59bf04 104 // enable or disable Adaptive Data Rate
GreensladeNZ 0:3a030a59bf04 105 dot->setAdr(adr);
GreensladeNZ 0:3a030a59bf04 106
GreensladeNZ 0:3a030a59bf04 107 //* AU915 Datarates
GreensladeNZ 0:3a030a59bf04 108 //* ---------------
GreensladeNZ 0:3a030a59bf04 109 //* DR0 - SF10BW125 -- 11 bytes
GreensladeNZ 0:3a030a59bf04 110 //* DR1 - SF9BW125 -- 53 bytes
GreensladeNZ 0:3a030a59bf04 111 //* DR2 - SF8BW125 -- 129 byte
GreensladeNZ 0:3a030a59bf04 112 //* DR3 - SF7BW125 -- 242 bytes
GreensladeNZ 0:3a030a59bf04 113 //* DR4 - SF8BW500 -- 242 bytes
GreensladeNZ 0:3a030a59bf04 114 dot->setTxDataRate(mDot::DR2);
GreensladeNZ 0:3a030a59bf04 115
GreensladeNZ 0:3a030a59bf04 116 // save changes to configuration
GreensladeNZ 0:3a030a59bf04 117 logInfo("saving configuration");
GreensladeNZ 0:3a030a59bf04 118 if (!dot->saveConfig()) {
GreensladeNZ 0:3a030a59bf04 119 logError("failed to save configuration");
GreensladeNZ 0:3a030a59bf04 120 }
GreensladeNZ 0:3a030a59bf04 121
GreensladeNZ 0:3a030a59bf04 122 // display configuration
GreensladeNZ 0:3a030a59bf04 123 display_config();
GreensladeNZ 0:3a030a59bf04 124 } else {
GreensladeNZ 0:3a030a59bf04 125 // restore the saved session if the dot woke from deepsleep mode
GreensladeNZ 0:3a030a59bf04 126 // useful to use with deepsleep because session info is otherwise lost when the dot enters deepsleep
GreensladeNZ 0:3a030a59bf04 127 logInfo("restoring network session from NVM");
GreensladeNZ 0:3a030a59bf04 128 dot->restoreNetworkSession();
GreensladeNZ 0:3a030a59bf04 129 }
GreensladeNZ 0:3a030a59bf04 130
GreensladeNZ 0:3a030a59bf04 131 //this is where the magic happens
GreensladeNZ 0:3a030a59bf04 132 while (true) {
GreensladeNZ 0:3a030a59bf04 133
GreensladeNZ 0:3a030a59bf04 134 //wake up
GreensladeNZ 0:3a030a59bf04 135 //wait(5);
GreensladeNZ 0:3a030a59bf04 136 //init data variable
GreensladeNZ 0:3a030a59bf04 137 std::vector<uint8_t> data;
GreensladeNZ 0:3a030a59bf04 138 logInfo("Starting reed sensor readings");
GreensladeNZ 0:3a030a59bf04 139 string reed_str = "";
GreensladeNZ 0:3a030a59bf04 140
GreensladeNZ 0:3a030a59bf04 141 if (gateopen)
GreensladeNZ 0:3a030a59bf04 142 {
GreensladeNZ 0:3a030a59bf04 143 logInfo("/n");
GreensladeNZ 0:3a030a59bf04 144 logInfo("Gate is Open!");
GreensladeNZ 0:3a030a59bf04 145 logInfo("/n");
GreensladeNZ 0:3a030a59bf04 146 reed_str = ToString(0);
GreensladeNZ 0:3a030a59bf04 147 }
GreensladeNZ 0:3a030a59bf04 148 else
GreensladeNZ 0:3a030a59bf04 149 {
GreensladeNZ 0:3a030a59bf04 150 logInfo("/n");
GreensladeNZ 0:3a030a59bf04 151 logInfo("Gate is Close!");
GreensladeNZ 0:3a030a59bf04 152 logInfo("/n");
GreensladeNZ 0:3a030a59bf04 153 reed_str = ToString(1);
GreensladeNZ 0:3a030a59bf04 154 }
GreensladeNZ 0:3a030a59bf04 155
GreensladeNZ 0:3a030a59bf04 156 oldstate = gateopen;
GreensladeNZ 0:3a030a59bf04 157
GreensladeNZ 0:3a030a59bf04 158 //build our output string now
GreensladeNZ 0:3a030a59bf04 159 string output = "1" + reed_str;
GreensladeNZ 0:3a030a59bf04 160
GreensladeNZ 0:3a030a59bf04 161
GreensladeNZ 0:3a030a59bf04 162 //serial output for debugging
GreensladeNZ 0:3a030a59bf04 163 logInfo("Sending %s", output.c_str());
GreensladeNZ 0:3a030a59bf04 164
GreensladeNZ 0:3a030a59bf04 165 // format data for sending to the gateway
GreensladeNZ 0:3a030a59bf04 166 for (std::string::iterator it = output.begin(); it != output.end(); it++)
GreensladeNZ 0:3a030a59bf04 167 data.push_back((uint8_t) *it);
GreensladeNZ 0:3a030a59bf04 168
GreensladeNZ 0:3a030a59bf04 169 //now send
GreensladeNZ 0:3a030a59bf04 170 send_data(data);
GreensladeNZ 0:3a030a59bf04 171 logInfo("Data sent!");
GreensladeNZ 0:3a030a59bf04 172
GreensladeNZ 0:3a030a59bf04 173 if (oldstate == gateopen)
GreensladeNZ 0:3a030a59bf04 174 {
GreensladeNZ 0:3a030a59bf04 175 // go to sleep and wake up automatically sleep_time seconds later or when interrupted
GreensladeNZ 0:3a030a59bf04 176 //false is "don't deep sleep" - mDot doesn't do that
GreensladeNZ 0:3a030a59bf04 177 sleep_wake_rtc_or_interrupt(false);
GreensladeNZ 0:3a030a59bf04 178 }
GreensladeNZ 0:3a030a59bf04 179 return 0; //shouldn't happen
GreensladeNZ 0:3a030a59bf04 180 }
GreensladeNZ 0:3a030a59bf04 181 }
GreensladeNZ 0:3a030a59bf04 182