main.cpp

00001 #include "mbed.h"
00002 #include "mDot.h"
00003 #include "rtos.h"
00004 #include "ChannelPlan.h"
00005 #include "ISL29011.h"
00006 #include "dot_util.h"
00007 #include "RadioEvent.h"
00008 
00009 static uint8_t network_address[] = { 0x04, 0x05, 0x03, 0x04 };
00010 static uint8_t network_session_key[] = { 0x04, 0x05, 0x03, 0x04, 0x04, 0x05, 0x03, 0x04, 0x04, 0x05, 0x03, 0x04, 0x04, 0x05, 0x03, 0x04 };
00011 static uint8_t data_session_key[] = { 0x04, 0x05, 0x03, 0x04, 0x04, 0x05, 0x03, 0x04, 0x04, 0x05, 0x03, 0x04, 0x04, 0x05, 0x03, 0x04 };
00012 
00013 mDot* dot = NULL;
00014 lora::ChannelPlan* plan = NULL;
00015 
00016 static Serial pc(USBTX, USBRX);
00017 
00018 I2C i2c(I2C_SDA, I2C_SCL);
00019 ISL29011 lux(i2c);
00020 
00021 int main() {
00022     
00023     // Custom event handler for automatically displaying RX data
00024     RadioEvent events;
00025     uint32_t tx_frequency;
00026     uint8_t tx_datarate;
00027     uint8_t tx_power;
00028     
00029     pc.baud(115200);
00030     
00031     plan = new lora::ChannelPlan_US915();
00032     dot = mDot::getInstance(plan);
00033     assert(dot);
00034     
00035     logInfo("defaulting Dot configuration");
00036     dot->resetConfig();
00037     
00038     // make sure library logging is turned on
00039     dot->setLogLevel(mts::MTSLog::INFO_LEVEL);
00040 
00041     // attach the custom events handler
00042     dot->setEvents(&events);
00043 
00044     // update configuration if necessary
00045     if (dot->getJoinMode() != mDot::PEER_TO_PEER) {
00046         logInfo("changing network join mode to PEER_TO_PEER");
00047         if (dot->setJoinMode(mDot::PEER_TO_PEER) != mDot::MDOT_OK) {
00048             logError("failed to set network join mode to PEER_TO_PEER");
00049         }
00050     }
00051     
00052     tx_frequency = 915500000;
00053     tx_datarate = lora::DR_13;
00054     // 915 bands have no duty cycle restrictions, set tx power to max
00055     tx_power = 20;
00056     
00057     // in PEER_TO_PEER mode there is no join request/response transaction
00058     // as long as both Dots are configured correctly, they should be able to communicate
00059     update_peer_to_peer_config(network_address, network_session_key, data_session_key, tx_frequency, tx_datarate, tx_power);
00060 
00061     // save changes to configuration
00062     logInfo("saving configuration");
00063     if (!dot->saveConfig()) {
00064         logError("failed to save configuration");
00065     }
00066 
00067     // display configuration
00068     display_config();
00069 
00070     lux.setMode(ISL29011::ALS_CONT);
00071     lux.setResolution(ISL29011::ADC_16BIT);
00072     lux.setRange(ISL29011::RNG_64000);
00073     
00074       while (true) {
00075         uint16_t light;
00076         std::vector<uint8_t> tx_data;
00077 
00078         // join network if not joined
00079         if (!dot->getNetworkJoinStatus()) {
00080             join_network();
00081         }
00082         
00083     light = lux.getData();
00084     tx_data.push_back((light >> 8) & 0xFF);
00085     tx_data.push_back(light & 0xFF);
00086     logInfo("light: %lu [0x%04X]", light, light);
00087     send_data(tx_data);  
00088     
00089     // the Dot can't sleep in PEER_TO_PEER mode
00090         // it must be waiting for data from the other Dot
00091         // send data every 5 seconds
00092         logInfo("waiting for 5s");
00093         wait(5);  
00094     }
00095 return 0;
00096 }