main.cpp

00001 /*
00002  * ADC Sensor Demo
00003  *
00004  * Analog inputs are read and pushed to the LoRa gateway.
00005  *
00006  * Analog sensors should be wired to mDot pins 16 and 17.
00007  *
00008  */
00009 
00010 #include "mbed.h"
00011 #include "mDot.h"
00012 #include <string>
00013 #include <vector>
00014 
00015 /*
00016  * LoRa settings
00017  *
00018  * For Conduit AEP settings can be found at:
00019  *
00020  *   https://<ip-address>/lora_network.html
00021  *
00022  * For Conduit mlinux:
00023  *
00024  *   /var/config/lora/lora-network-server.conf
00025  *
00026  */
00027 static std::string config_network_name = "testtest";
00028 static std::string config_network_pass = "memememe";
00029 static uint8_t config_frequency_sub_band = 5;
00030 
00031 enum {
00032     MSG_TYPE_ADC0,
00033     MSG_TYPE_ADC1,
00034 };
00035 
00036 AnalogIn adc0(PA_1); // PIN16 on mDot
00037 AnalogIn adc1(PA_4); // PIN17 on mDot
00038 
00039 Serial debug(USBTX, USBRX);
00040 
00041 int main() {
00042     int32_t rc;
00043 
00044     debug.baud(115200);
00045 
00046     mDot *mdot = mDot::getInstance();
00047 
00048     mdot->resetConfig();
00049 
00050     printf("mDot version: %s\r\n", mdot->getId().c_str());
00051 
00052     // Activity Status on UDK2
00053     mdot->setActivityLedPin(LED1);
00054     mdot->setActivityLedEnable(true);
00055 
00056     if ((rc = mdot->setFrequencySubBand(config_frequency_sub_band)) != mDot::MDOT_OK) {
00057         printf("failed to set frequency sub-band: %d\r\n", rc);
00058         return 1;
00059     }
00060 
00061     if ((rc = mdot->setNetworkName(config_network_name)) != mDot::MDOT_OK) {
00062         printf("failed to set network name: %d\r\n", rc);
00063         return 1;
00064     }
00065 
00066     if ((rc = mdot->setNetworkPassphrase(config_network_pass)) != mDot::MDOT_OK) {
00067         printf("failed to set network pass phrase: %d\r\n", rc);
00068         return 1;
00069     }
00070 
00071     while ((rc = mdot->joinNetwork()) != mDot::MDOT_OK) {
00072         printf("failed to join network: %d\r\n", rc);
00073         if (mdot->getFrequencyBand() == mDot::FB_868){
00074             rc = mdot->getNextTxMs();
00075         } else {
00076             rc = 0;
00077         }
00078 
00079         wait(1);
00080     }
00081 
00082     while (true) {
00083         std::vector<uint8_t> lora_pl;
00084 
00085         // Read analog inputs
00086         uint16_t adc0_value = adc0.read_u16();
00087         uint16_t adc1_value = adc1.read_u16();
00088 
00089         // Pack ADC0 TLV
00090         lora_pl.clear();
00091         lora_pl.push_back(MSG_TYPE_ADC0);
00092         lora_pl.push_back(2);
00093         lora_pl.push_back(((char *) &adc0_value)[1]);
00094         lora_pl.push_back(((char *) &adc0_value)[0]);
00095 
00096         // Pack ADC1 TLV
00097         lora_pl.push_back(MSG_TYPE_ADC1);
00098         lora_pl.push_back(2);
00099         lora_pl.push_back(((char *) &adc1_value)[1]);
00100         lora_pl.push_back(((char *) &adc1_value)[0]);
00101 
00102         // Send message
00103         while ((rc = mdot->send(lora_pl)) != mDot::MDOT_OK) {
00104             printf("failed to send message: %d\r\n", rc);
00105             wait(1);
00106         }
00107 
00108         wait(5);
00109     }
00110 }