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Fengrui Zuo, Benjamin Leverett, Rahil Ajani, Kombundit Chitranuwatkul
Dependencies: mbed mbed-rtos 4DGL-uLCD-SE SDFileSystem ATParser
main.cpp
- Committer:
- chenchen2020
- Date:
- 2020-04-20
- Revision:
- 1:8eb0ee57df9f
- Parent:
- 0:bedc25613430
- Child:
- 2:f65d4206b47b
File content as of revision 1:8eb0ee57df9f:
#include "mbed.h" #include "rtos.h" #include "ATParser.h" #include "uLCD_4DGL.h" #include "SDFileSystem.h" //#include "wave_player.h" #include <string> #include <iostream> using namespace std; //General setups DigitalOut cmdMode(p18); Serial pc(USBTX, USBRX); BufferedSerial ble(p13,p14); DigitalOut cmdstuff(p18); uLCD_4DGL uLCD(p28,p27,p30); SDFileSystem sd(p5, p6, p7, p8, "sd"); //AT command data handlers char delimiter[] = "\r\n"; int buffer_size = 256; int timeout = 100; bool debug = false; ATParser at(ble, delimiter, buffer_size, timeout, debug); char buffer[10]; volatile int risk_level = 0; //RTOS Mutex mutex_lock; //Global Data points and arrays int averageCount = 0; volatile int RSSI_array[15]; int calculate_average(volatile int *input, int size){ int average; for(int i = 0; i< size; i++){ average = average + input[i]; } average = average/size; return average; } void parse_RSSI(){ at.send("AT+BLEGETRSSI") && at.read(buffer, 10); if(buffer[0] == '-'){ pc.printf("RSSI: "); pc.putc(buffer[1]); pc.putc(buffer[2]); pc.printf("\n"); int digit1 = buffer[1] - 48; int digit2 = buffer[2] - 48; int total = 10*digit1 + digit2; if (averageCount <= 15){ RSSI_array[averageCount] = total; } averageCount++; if(averageCount > 15 && buffer[0] == '-'){ averageCount = 0; int average = calculate_average(RSSI_array, 15); if(average < 55){ risk_level = 3; }else if(average > 55 && average < 70) { risk_level = 2; }else if(average > 70 && average < 90) { risk_level = 1; } else{ risk_level = 0; } } pc.printf("Risk level: "); pc.printf("%i\n", risk_level); }else{ pc.printf("Disconnected\n"); } } void speaker_alarm(){ } void logging_SD_card(){ } void blink_leds(){ } void display_ulcd(){ } int main() { cmdstuff = 1; at.send("AT") && at.recv("OK"); at.send("AT+AB ChangeDefaultBaud [9600]", 3) && at.recv("OK"); pc.baud(9600); ble.baud(9600); Thread SD_Thread(); Thread ULCD_Thread(); Thread LED_Thread(); Thread Speaker_Thread(); while(1) { parse_RSSI(); } }