stephen mathenge / Mbed OS final-water-level_2

How to measure water in a reservoir

Dependencies:   Cayenne-MQTT-mbed Cayenne-LPP

main.cpp@0:7bfeb237e600, 2019-03-08 (annotated)

Committer:
wamae
Date:
Fri Mar 08 11:34:56 2019 +0000
Revision:
0:7bfeb237e600
working code

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wamae 0:7bfeb237e600 1 #include "MQTTTimer.h"
wamae 0:7bfeb237e600 2 #include "CayenneMQTTClient.h"
wamae 0:7bfeb237e600 3 #include "MQTTNetworkIDW01M1.h"
wamae 0:7bfeb237e600 4 #include "mbed.h"
wamae 0:7bfeb237e600 5 #include "lorawan_network.h"
wamae 0:7bfeb237e600 6 #include "CayenneLPP.h"
wamae 0:7bfeb237e600 7 #include "mbed_events.h"
wamae 0:7bfeb237e600 8 #include "mbed_trace.h"
wamae 0:7bfeb237e600 9 #include "lora_radio_helper.h"
wamae 0:7bfeb237e600 10 #include "SX1276_LoRaRadio.h"
wamae 0:7bfeb237e600 11 #include "LoRaWANInterface.h"
wamae 0:7bfeb237e600 12 #include "hcsr04.h"
wamae 0:7bfeb237e600 13 #include "standby.h"
wamae 0:7bfeb237e600 14
wamae 0:7bfeb237e600 15 #define STANDBY_TIME_S 1* 60
wamae 0:7bfeb237e600 16
wamae 0:7bfeb237e600 17 extern EventQueue ev_queue;
wamae 0:7bfeb237e600 18
wamae 0:7bfeb237e600 19 static uint32_t DEV_ADDR_1 = 0x260118FA;
wamae 0:7bfeb237e600 20 static uint8_t NWK_S_KEY_1[] = { 0x5D, 0xD5, 0xC9, 0x84, 0xB9, 0xCE, 0x26, 0x05, 0xB7, 0x61, 0xBF, 0x9F, 0x3C, 0x2D, 0x4E, 0x14 };
wamae 0:7bfeb237e600 21 static uint8_t APP_S_KEY_1[] = { 0xF0, 0xE4, 0xA1, 0xEB, 0x1F, 0xB5, 0x6E, 0xBA, 0x31, 0x69, 0x80, 0x9D, 0x85, 0x92, 0x68, 0xB4 };
wamae 0:7bfeb237e600 22
wamae 0:7bfeb237e600 23 //static uint32_t DEV_ADDR_2 = 0x2601114C;
wamae 0:7bfeb237e600 24 //static uint8_t NWK_S_KEY_2[] = { 0xDB, 0xC0, 0xD7, 0x32, 0xF8, 0x41, 0xE7, 0xF5, 0xB9, 0xCB, 0x54, 0x6F, 0x49, 0xD5, 0x48, 0x25 };
wamae 0:7bfeb237e600 25 //static uint8_t APP_S_KEY_2[] = { 0x64, 0x6C, 0xF0, 0xA4, 0x9C, 0x6F, 0x30, 0xF4, 0x0C, 0x80, 0x3E, 0x4A, 0x50, 0xC3, 0x77, 0x53 };
wamae 0:7bfeb237e600 26 HCSR04 sensor(D4, D3);
wamae 0:7bfeb237e600 27 //DigitalOut led3(LED3);
wamae 0:7bfeb237e600 28
wamae 0:7bfeb237e600 29 // WiFi network info.
wamae 0:7bfeb237e600 30 //char* ssid = "Jeff_HomeAP_2EX";
wamae 0:7bfeb237e600 31 //char* wifiPassword = "iots2480";
wamae 0:7bfeb237e600 32
wamae 0:7bfeb237e600 33 // Cayenne authentication info. This should be obtained from the Cayenne Dashboard.
wamae 0:7bfeb237e600 34 //char* username = "0cb35a60-7fbc-11e8-890a-c1153a0b021e";
wamae 0:7bfeb237e600 35 //char* password = "8f7cb3b94334a5a0a5cbe11b068f4630b6c8d478";
wamae 0:7bfeb237e600 36 //char* clientID = "d8504b50-b0ff-11e8-85ea-f10189fd2756";
wamae 0:7bfeb237e600 37
wamae 0:7bfeb237e600 38
wamae 0:7bfeb237e600 39 //global variable
wamae 0:7bfeb237e600 40 long distance;
wamae 0:7bfeb237e600 41 bool dist_updated = false;
wamae 0:7bfeb237e600 42 float volume;
wamae 0:7bfeb237e600 43
wamae 0:7bfeb237e600 44 //void dust_sensor_cb(int lpo, float ratio, float concentration) {
wamae 0:7bfeb237e600 45 // dust_concentration = concentration;
wamae 0:7bfeb237e600 46 // dust_updated = true;
wamae 0:7bfeb237e600 47 //}
wamae 0:7bfeb237e600 48
wamae 0:7bfeb237e600 49 void dist_measure(){
wamae 0:7bfeb237e600 50 sensor.start();
wamae 0:7bfeb237e600 51 wait_ms(100);
wamae 0:7bfeb237e600 52 distance=sensor.get_dist_cm();
wamae 0:7bfeb237e600 53 volume = 6*6*(2-(distance*0.01));
wamae 0:7bfeb237e600 54 dist_updated = true;
wamae 0:7bfeb237e600 55
wamae 0:7bfeb237e600 56 }
wamae 0:7bfeb237e600 57
wamae 0:7bfeb237e600 58 void check_for_updated_dist() {
wamae 0:7bfeb237e600 59 if (dist_updated){
wamae 0:7bfeb237e600 60 dist_updated = false ;
wamae 0:7bfeb237e600 61 printf("Measure Distance = %ld ",distance);
wamae 0:7bfeb237e600 62 printf("Volume=%3.0f\n", volume);
wamae 0:7bfeb237e600 63
wamae 0:7bfeb237e600 64 CayenneLPP payload(50);
wamae 0:7bfeb237e600 65 float volume_value = volume;
wamae 0:7bfeb237e600 66 printf("Volume_value=%f\n", volume_value);
wamae 0:7bfeb237e600 67 payload.addAnalogInput(4, volume_value);
wamae 0:7bfeb237e600 68
wamae 0:7bfeb237e600 69 if (!lorawan_send(&payload)){
wamae 0:7bfeb237e600 70 // delete distance;
wamae 0:7bfeb237e600 71 standby(STANDBY_TIME_S);
wamae 0:7bfeb237e600 72 }
wamae 0:7bfeb237e600 73 }
wamae 0:7bfeb237e600 74 }
wamae 0:7bfeb237e600 75
wamae 0:7bfeb237e600 76 static void lora_event_handler(lorawan_event_t event) {
wamae 0:7bfeb237e600 77 switch (event) {
wamae 0:7bfeb237e600 78 case CONNECTED:
wamae 0:7bfeb237e600 79 printf("[LNWK][INFO] Connection - Successful\n");
wamae 0:7bfeb237e600 80 break;
wamae 0:7bfeb237e600 81 case DISCONNECTED:
wamae 0:7bfeb237e600 82 ev_queue.break_dispatch();
wamae 0:7bfeb237e600 83 printf("[LNWK][INFO] Disconnected Successfully\n");
wamae 0:7bfeb237e600 84 break;
wamae 0:7bfeb237e600 85 case TX_DONE:
wamae 0:7bfeb237e600 86 printf("[LNWK][INFO] Message Sent to Network Server\n");
wamae 0:7bfeb237e600 87
wamae 0:7bfeb237e600 88 // delete distance;
wamae 0:7bfeb237e600 89 standby(STANDBY_TIME_S);
wamae 0:7bfeb237e600 90 break;
wamae 0:7bfeb237e600 91 case TX_TIMEOUT:
wamae 0:7bfeb237e600 92 case TX_ERROR:
wamae 0:7bfeb237e600 93 case TX_CRYPTO_ERROR:
wamae 0:7bfeb237e600 94 case TX_SCHEDULING_ERROR:
wamae 0:7bfeb237e600 95 printf("[LNWK][INFO] Transmission Error - EventCode = %d\n", event);
wamae 0:7bfeb237e600 96
wamae 0:7bfeb237e600 97
wamae 0:7bfeb237e600 98 //delete distance;
wamae 0:7bfeb237e600 99 standby(STANDBY_TIME_S);
wamae 0:7bfeb237e600 100 break;
wamae 0:7bfeb237e600 101 case RX_DONE:
wamae 0:7bfeb237e600 102 printf("[LNWK][INFO] Received message from Network Server\n");
wamae 0:7bfeb237e600 103 receive_message();
wamae 0:7bfeb237e600 104 break;
wamae 0:7bfeb237e600 105 case RX_TIMEOUT:
wamae 0:7bfeb237e600 106 case RX_ERROR:
wamae 0:7bfeb237e600 107 printf("[LNWK][INFO] Error in reception - Code = %d\n", event);
wamae 0:7bfeb237e600 108 break;
wamae 0:7bfeb237e600 109 case JOIN_FAILURE:
wamae 0:7bfeb237e600 110 printf("[LNWK][INFO] ABP Failed - Check Keys\n");
wamae 0:7bfeb237e600 111 break;
wamae 0:7bfeb237e600 112 default:
wamae 0:7bfeb237e600 113 MBED_ASSERT("Unknown Event");
wamae 0:7bfeb237e600 114 }
wamae 0:7bfeb237e600 115 }
wamae 0:7bfeb237e600 116
wamae 0:7bfeb237e600 117
wamae 0:7bfeb237e600 118 int main() {
wamae 0:7bfeb237e600 119 set_time(0);
wamae 0:7bfeb237e600 120
wamae 0:7bfeb237e600 121 printf("=========================================\n");
wamae 0:7bfeb237e600 122 printf(" Water Level Monitoring System \n");
wamae 0:7bfeb237e600 123 printf("=========================================\n");
wamae 0:7bfeb237e600 124
wamae 0:7bfeb237e600 125 lorawan_setup(DEV_ADDR_1, NWK_S_KEY_1, APP_S_KEY_1, lora_event_handler);
wamae 0:7bfeb237e600 126
wamae 0:7bfeb237e600 127 printf("Measuring Distance...\n");
wamae 0:7bfeb237e600 128
wamae 0:7bfeb237e600 129 //immediately measure the distance
wamae 0:7bfeb237e600 130 sensor.start();
wamae 0:7bfeb237e600 131 wait_ms(100);
wamae 0:7bfeb237e600 132 distance = sensor.get_dist_cm();
wamae 0:7bfeb237e600 133 printf("Measuring Dist =%ld...\n",distance);
wamae 0:7bfeb237e600 134 dist_measure();
wamae 0:7bfeb237e600 135 ev_queue.call_every(3000, &check_for_updated_dist);
wamae 0:7bfeb237e600 136
wamae 0:7bfeb237e600 137
wamae 0:7bfeb237e600 138 ev_queue.dispatch_forever();
wamae 0:7bfeb237e600 139 }
wamae 0:7bfeb237e600 140
wamae 0:7bfeb237e600 141
wamae 0:7bfeb237e600 142