student-devel / Mbed 2 deprecated ExoComms

Mdot control and communication for the exosonde

Dependencies:   libmDot-mbed5 mbed

main.cpp@7:42e738547cb2, 2018-05-01 (annotated)

Committer:
brettsawyers
Date:
Tue May 01 01:38:16 2018 +0000
Revision:
7:42e738547cb2
Parent:
6:f3407f58f521 
upload to team

Who changed what in which revision?

UserRevisionLine numberNew contents of line
brettsawyers 0:d8d49519a14a 1 #include "mbed.h"
brettsawyers 0:d8d49519a14a 2 #include "mDot.h"
brettsawyers 0:d8d49519a14a 3 #include <string>
brettsawyers 0:d8d49519a14a 4 #include <vector>
brettsawyers 0:d8d49519a14a 5 #include <algorithm>
brettsawyers 3:805c0c2f82d3 6 #include "ChannelPlans.h"
brettsawyers 0:d8d49519a14a 7
brettsawyers 7:42e738547cb2 8 #define PARAMSNUM 9
brettsawyers 2:e7e272186bf2 9 #define PARAMLENGTH 15
brettsawyers 2:e7e272186bf2 10 #define SONDEBUFFERLEN 256
brettsawyers 2:e7e272186bf2 11 char sonde_buffer[SONDEBUFFERLEN];
brettsawyers 2:e7e272186bf2 12 char parameters[PARAMSNUM][PARAMLENGTH];
brettsawyers 2:e7e272186bf2 13
brettsawyers 3:805c0c2f82d3 14 lora::ChannelPlan* plan = NULL;
brettsawyers 3:805c0c2f82d3 15 mDot* dot = NULL;
brettsawyers 3:805c0c2f82d3 16
brettsawyers 7:42e738547cb2 17 static uint8_t devAddr[] = { 0x26, 0x01, 0x12, 0xB7 };
brettsawyers 7:42e738547cb2 18 static uint8_t appSKey[] = { 0x10, 0xD8, 0x7A, 0xCC, 0x0E, 0x39, 0x7F, 0x6D, 0x7A, 0xD9, 0x9F, 0xD5, 0x68, 0xFF, 0xF0, 0x11 };
brettsawyers 7:42e738547cb2 19 static uint8_t nwkSKey[] = { 0x42, 0xCC, 0x3A, 0x3A, 0xBC, 0x17, 0x50, 0xC7, 0xDE, 0x0D, 0x16, 0x55, 0x37, 0x3C, 0xE0, 0x8B };
brettsawyers 7:42e738547cb2 20
brettsawyers 6:f3407f58f521 21 static uint8_t config_frequency_sub_band = 2;
brettsawyers 2:e7e272186bf2 22
brettsawyers 7:42e738547cb2 23 const char firstidentifier = 'h';
brettsawyers 7:42e738547cb2 24
brettsawyers 2:e7e272186bf2 25 int32_t ret;
brettsawyers 2:e7e272186bf2 26
brettsawyers 7:42e738547cb2 27 Serial debugger(USBTX, USBRX); //will need to change this to the appropriate pins once connected ot the exosonde
brettsawyers 7:42e738547cb2 28 Serial device(UART_TX,UART_RX);
brettsawyers 2:e7e272186bf2 29
brettsawyers 2:e7e272186bf2 30 //update this depending on the desired readings' identifier characters
brettsawyers 7:42e738547cb2 31 char identifiers[PARAMSNUM];
brettsawyers 1:3bb9d88c2646 32 void flushRXbuffer(Serial *serial){
brettsawyers 1:3bb9d88c2646 33 while(serial -> readable()) serial -> getc();
brettsawyers 1:3bb9d88c2646 34 }
brettsawyers 1:3bb9d88c2646 35
brettsawyers 1:3bb9d88c2646 36 bool checkforcomma(Serial *debugger){
brettsawyers 1:3bb9d88c2646 37 debugger -> printf("received: %s\r\n",sonde_buffer);
brettsawyers 1:3bb9d88c2646 38 for(int i = 0; i < strlen(sonde_buffer); i++) {
brettsawyers 1:3bb9d88c2646 39 if(sonde_buffer[i] == ','){
brettsawyers 1:3bb9d88c2646 40 return true;
brettsawyers 1:3bb9d88c2646 41 }
brettsawyers 1:3bb9d88c2646 42 }
brettsawyers 1:3bb9d88c2646 43 return false;
brettsawyers 1:3bb9d88c2646 44 }
brettsawyers 1:3bb9d88c2646 45
brettsawyers 1:3bb9d88c2646 46 void getsondedata(Serial *device, Serial *debugger){
brettsawyers 1:3bb9d88c2646 47 char datachar;
brettsawyers 1:3bb9d88c2646 48 device -> printf("data\r\n");
brettsawyers 1:3bb9d88c2646 49 int charcount = 0;
brettsawyers 7:42e738547cb2 50 int commarecvd = 0;
brettsawyers 7:42e738547cb2 51 while(datachar = device -> getc()){
brettsawyers 7:42e738547cb2 52 if(datachar == ',') commarecvd++;
brettsawyers 1:3bb9d88c2646 53 sonde_buffer[charcount] = datachar;
brettsawyers 7:42e738547cb2 54 charcount++;
brettsawyers 7:42e738547cb2 55 if(commarecvd >= 9) break;
brettsawyers 1:3bb9d88c2646 56 }
brettsawyers 1:3bb9d88c2646 57 //flush the remaining '\n' character from the buffer
brettsawyers 1:3bb9d88c2646 58 flushRXbuffer(device);
brettsawyers 1:3bb9d88c2646 59 sonde_buffer[charcount] = '\0';
brettsawyers 1:3bb9d88c2646 60 }
brettsawyers 1:3bb9d88c2646 61
brettsawyers 1:3bb9d88c2646 62 void setcommadelim(Serial *device){
brettsawyers 1:3bb9d88c2646 63 device -> printf("delim 2\r\n");
brettsawyers 1:3bb9d88c2646 64 }
brettsawyers 2:e7e272186bf2 65
brettsawyers 2:e7e272186bf2 66 void parsesondedata(void){
brettsawyers 2:e7e272186bf2 67 int parametercount = 0;
brettsawyers 2:e7e272186bf2 68 int charcount;
brettsawyers 2:e7e272186bf2 69 char currentcheck;
brettsawyers 2:e7e272186bf2 70 for (int i = 0; i < strlen(sonde_buffer); i++){
brettsawyers 2:e7e272186bf2 71 currentcheck = sonde_buffer[i];
brettsawyers 2:e7e272186bf2 72 if(currentcheck == ',') {
brettsawyers 2:e7e272186bf2 73 parameters[parametercount][charcount] = '\0';
brettsawyers 2:e7e272186bf2 74 parametercount++;
brettsawyers 2:e7e272186bf2 75 charcount = 0;
brettsawyers 2:e7e272186bf2 76 continue;
brettsawyers 2:e7e272186bf2 77 }
brettsawyers 2:e7e272186bf2 78 parameters[parametercount][charcount] = sonde_buffer[i];
brettsawyers 2:e7e272186bf2 79 charcount++;
brettsawyers 2:e7e272186bf2 80 }
brettsawyers 2:e7e272186bf2 81 parameters[parametercount][charcount] = '\0'; //end the final string
brettsawyers 2:e7e272186bf2 82 }
brettsawyers 2:e7e272186bf2 83
brettsawyers 7:42e738547cb2 84 void joinnetwork(void){
brettsawyers 7:42e738547cb2 85 debugger.printf("joining network\r\n");
brettsawyers 7:42e738547cb2 86 if ((ret = dot->joinNetwork()) != mDot::MDOT_OK) {
brettsawyers 7:42e738547cb2 87 debugger.printf("\r\n---------\r\nJoin Failed, code: %s\r\n---------\r\n",mDot::getReturnCodeString(ret).c_str());
brettsawyers 7:42e738547cb2 88 }
brettsawyers 7:42e738547cb2 89 else{
brettsawyers 7:42e738547cb2 90 debugger.printf("joined successfully\r\n");
brettsawyers 7:42e738547cb2 91 }
brettsawyers 7:42e738547cb2 92 }
brettsawyers 7:42e738547cb2 93
brettsawyers 2:e7e272186bf2 94 void sendpacket(){
brettsawyers 7:42e738547cb2 95 std::vector<uint8_t> payload;
brettsawyers 7:42e738547cb2 96 std::vector<uint8_t> dummypayload;
brettsawyers 7:42e738547cb2 97 std::string dummystring("hello");
brettsawyers 2:e7e272186bf2 98 for (int i = 0; i < PARAMSNUM; i++){
brettsawyers 2:e7e272186bf2 99 int j = 0;
brettsawyers 2:e7e272186bf2 100 payload.push_back((uint8_t)identifiers[i]);
brettsawyers 2:e7e272186bf2 101 payload.push_back((uint8_t)':');
brettsawyers 2:e7e272186bf2 102 while(parameters[i][j] != '\0'){
brettsawyers 3:805c0c2f82d3 103 payload.push_back(parameters[i][j]);
brettsawyers 3:805c0c2f82d3 104 j++;
brettsawyers 2:e7e272186bf2 105 }
brettsawyers 2:e7e272186bf2 106 if(i != PARAMSNUM-1){
brettsawyers 2:e7e272186bf2 107 payload.push_back((uint8_t)',');
brettsawyers 2:e7e272186bf2 108 }
brettsawyers 2:e7e272186bf2 109 }
brettsawyers 3:805c0c2f82d3 110 payload.push_back((uint8_t)'\0');
brettsawyers 3:805c0c2f82d3 111 debugger.printf("made packet %s\r\n", payload);
brettsawyers 7:42e738547cb2 112 std::copy(dummystring.begin(),dummystring.end(),std::back_inserter(dummypayload));
brettsawyers 7:42e738547cb2 113 debugger.printf("%d\r\n", dummypayload.size());
brettsawyers 7:42e738547cb2 114 // send the data
brettsawyers 7:42e738547cb2 115 for(int i = 0; i < 12; i++) {
brettsawyers 7:42e738547cb2 116 wait(0.05);
brettsawyers 7:42e738547cb2 117 //send eight times to ensure a message goes out on channel 917.4 Mhz
brettsawyers 7:42e738547cb2 118 if ((ret = dot->send(payload)) != mDot::MDOT_OK) {
brettsawyers 7:42e738547cb2 119 debugger.printf("\r\nFailed send, code: %s\r\n",mDot::getReturnCodeString(ret).c_str());
brettsawyers 7:42e738547cb2 120 }else {
brettsawyers 7:42e738547cb2 121 debugger.printf("\r\ndata sent\r\n");
brettsawyers 7:42e738547cb2 122 }
brettsawyers 2:e7e272186bf2 123 }
brettsawyers 7:42e738547cb2 124
brettsawyers 7:42e738547cb2 125
brettsawyers 2:e7e272186bf2 126
brettsawyers 2:e7e272186bf2 127 }
brettsawyers 2:e7e272186bf2 128
brettsawyers 2:e7e272186bf2 129 void Loraconfig(void){
brettsawyers 7:42e738547cb2 130 debugger.printf("default frequency band %d\n\r",dot -> getDefaultFrequencyBand());
brettsawyers 2:e7e272186bf2 131 if ((ret = dot->setFrequencySubBand(config_frequency_sub_band)) != mDot::MDOT_OK) {
brettsawyers 3:805c0c2f82d3 132 debugger.printf("Could not set FSB\r\n");
brettsawyers 2:e7e272186bf2 133 }
brettsawyers 7:42e738547cb2 134
brettsawyers 7:42e738547cb2 135 std::vector<uint8_t> temp;
brettsawyers 7:42e738547cb2 136 for (int i = 0; i < 4; i++) {
brettsawyers 7:42e738547cb2 137 temp.push_back(devAddr[i]);
brettsawyers 2:e7e272186bf2 138 }
brettsawyers 7:42e738547cb2 139 // set join mode
brettsawyers 7:42e738547cb2 140 if ((ret = dot->setJoinMode(mDot::MANUAL)) != mDot::MDOT_OK) {
brettsawyers 7:42e738547cb2 141 debugger.printf("Could not set join mode\r\n");
brettsawyers 7:42e738547cb2 142 }
brettsawyers 7:42e738547cb2 143 //set network address
brettsawyers 7:42e738547cb2 144 if ((ret = dot->setNetworkAddress(temp)) != mDot::MDOT_OK) {
brettsawyers 7:42e738547cb2 145 debugger.printf("Could not set network address\r\n");
brettsawyers 7:42e738547cb2 146 }
brettsawyers 7:42e738547cb2 147 //ser public netowkr to true
brettsawyers 7:42e738547cb2 148 if ((ret = dot->setPublicNetwork(true)) != mDot::MDOT_OK) {
brettsawyers 7:42e738547cb2 149 debugger.printf("Could not set public network\r\n");
brettsawyers 2:e7e272186bf2 150 }
brettsawyers 7:42e738547cb2 151 //make a string to be input later
brettsawyers 7:42e738547cb2 152 temp.clear();
brettsawyers 7:42e738547cb2 153 for (int i = 0; i < 16; i++) {
brettsawyers 7:42e738547cb2 154 temp.push_back(nwkSKey[i]);
brettsawyers 7:42e738547cb2 155 }
brettsawyers 7:42e738547cb2 156 //set the netowrk session key
brettsawyers 7:42e738547cb2 157 if ((ret = dot->setNetworkSessionKey(temp)) != mDot::MDOT_OK) {
brettsawyers 7:42e738547cb2 158 debugger.printf("Could not set network session key\r\n");
brettsawyers 2:e7e272186bf2 159 }
brettsawyers 7:42e738547cb2 160
brettsawyers 7:42e738547cb2 161 //make a string to be input later
brettsawyers 7:42e738547cb2 162 temp.clear();
brettsawyers 7:42e738547cb2 163 for (int i = 0; i < 16; i++) {
brettsawyers 7:42e738547cb2 164 temp.push_back(appSKey[i]);
brettsawyers 2:e7e272186bf2 165 }
brettsawyers 7:42e738547cb2 166
brettsawyers 7:42e738547cb2 167 if ((ret = dot->setDataSessionKey(temp)) != mDot::MDOT_OK) {
brettsawyers 7:42e738547cb2 168 debugger.printf("Could not set data session key (app session key)\n\r");
brettsawyers 7:42e738547cb2 169 }
brettsawyers 7:42e738547cb2 170
brettsawyers 2:e7e272186bf2 171 // request receive confirmation of packets from the gateway
brettsawyers 6:f3407f58f521 172 if ((ret = dot->setAck(0)) != mDot::MDOT_OK) {
brettsawyers 3:805c0c2f82d3 173 debugger.printf("Could not set ACK\r\n");
brettsawyers 2:e7e272186bf2 174 }
brettsawyers 7:42e738547cb2 175
brettsawyers 7:42e738547cb2 176 //set data rate to dr2, this gives us 126 bytes of payload space
brettsawyers 7:42e738547cb2 177 if ((ret = dot->setTxDataRate(mDot::DR3)) != mDot::MDOT_OK) {
brettsawyers 7:42e738547cb2 178 debugger.printf("Could not set data rate\r\n");
brettsawyers 7:42e738547cb2 179 }
brettsawyers 7:42e738547cb2 180
brettsawyers 2:e7e272186bf2 181 }
brettsawyers 3:805c0c2f82d3 182
brettsawyers 7:42e738547cb2 183 /*
brettsawyers 7:42e738547cb2 184 * initilaise the identifier array used when sending data
brettsawyers 7:42e738547cb2 185 */
brettsawyers 7:42e738547cb2 186 void setup_identifiers() {
brettsawyers 7:42e738547cb2 187 for(int i = 0; i < PARAMSNUM; i++) {
brettsawyers 7:42e738547cb2 188 identifiers[i] = firstidentifier + i;
brettsawyers 7:42e738547cb2 189 }
brettsawyers 7:42e738547cb2 190 }
brettsawyers 0:d8d49519a14a 191 int main() {
brettsawyers 2:e7e272186bf2 192 // get an mDot handle
brettsawyers 7:42e738547cb2 193 wait(2); //stabilise
brettsawyers 7:42e738547cb2 194 device.printf("\r\n");//flush any buffer built up during start up
brettsawyers 7:42e738547cb2 195 //plan = new lora::ChannelPlan_AU915();
brettsawyers 7:42e738547cb2 196 plan = new lora::ChannelPlan_AS923();
brettsawyers 3:805c0c2f82d3 197 dot = mDot::getInstance(plan);
brettsawyers 3:805c0c2f82d3 198 assert(dot);
brettsawyers 7:42e738547cb2 199 setup_identifiers();
brettsawyers 2:e7e272186bf2 200 Loraconfig();
brettsawyers 7:42e738547cb2 201 debugger.printf("data rate = %d\r\n", dot -> getTxDataRate());
brettsawyers 7:42e738547cb2 202 debugger.printf("max packet length = %d\r\n", dot -> getMaxPacketLength());
brettsawyers 1:3bb9d88c2646 203 while(1){
brettsawyers 7:42e738547cb2 204 wait(2);
brettsawyers 7:42e738547cb2 205 getsondedata(&device, &debugger);
brettsawyers 7:42e738547cb2 206 if(!checkforcomma(&debugger)){
brettsawyers 7:42e738547cb2 207 setcommadelim(&device);
brettsawyers 7:42e738547cb2 208 continue;
brettsawyers 7:42e738547cb2 209 }
brettsawyers 7:42e738547cb2 210 parsesondedata();
brettsawyers 2:e7e272186bf2 211 sendpacket();
brettsawyers 1:3bb9d88c2646 212 }
brettsawyers 1:3bb9d88c2646 213 }
brettsawyers 1:3bb9d88c2646 214