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Fengrui Zuo, Benjamin Leverett, Rahil Ajani, Kombundit Chitranuwatkul
Dependencies: mbed mbed-rtos 4DGL-uLCD-SE SDFileSystem ATParser
Diff: main.cpp
- Revision:
- 0:bedc25613430
- Child:
- 1:8eb0ee57df9f
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Mon Apr 20 02:19:40 2020 +0000 @@ -0,0 +1,120 @@ +#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(){ + 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) { + //wait(0.05); + at.send("AT+BLEGETRSSI") && at.read(buffer, 10); + /*for(int i = 0; i < 10; i++){ + pc.putc(buffer[i]); + }*/ + parse_RSSI(); + //pc.putc("\n"); + //pc.putc(); + } +} \ No newline at end of file