Tyler Weaver / HARP3

Generation 3 of the Harp project

Dependencies:   Servo TMP36 GZ buffered-serial1 chan_fatfs_sd nmea_parser watchdog mbed-rtos mbed

Fork of HARP2 by Tyler Weaver

main.cpp@10:b13416bbb4cd, 2012-12-11 (annotated)

Committer:
tylerjw
Date:
Tue Dec 11 00:27:45 2012 +0000
Revision:
10:b13416bbb4cd
Parent:
9:4debfbc1fb3e
Child:
11:890a721158a5
with voltage monitor

Who changed what in which revision?

UserRevisionLine numberNew contents of line
tylerjw 0:ce5f06c3895f 1 #include "mbed.h"
tylerjw 7:d8ecabe16c9e 2 #include "rtos.h"
tylerjw 10:b13416bbb4cd 3 #include "buffered_serial.h"
tylerjw 10:b13416bbb4cd 4
tylerjw 10:b13416bbb4cd 5 #define CELLS 3.0
tylerjw 10:b13416bbb4cd 6 #define LIPO_EMPTY 3.4
tylerjw 10:b13416bbb4cd 7 #define LIPO_FULL 4.2
tylerjw 10:b13416bbb4cd 8
tylerjw 10:b13416bbb4cd 9 const float BAT_MUL = 4.7;
tylerjw 10:b13416bbb4cd 10 const float BAT_FULL = (CELLS * LIPO_FULL);
tylerjw 10:b13416bbb4cd 11 const float BAT_EMPTY = (CELLS * LIPO_EMPTY);
tylerjw 10:b13416bbb4cd 12 const float BAT_RANGE = BAT_FULL - BAT_EMPTY;
tylerjw 0:ce5f06c3895f 13
tylerjw 0:ce5f06c3895f 14 Serial pc(USBTX, USBRX);
tylerjw 10:b13416bbb4cd 15 BufferedSerial gps(NC, p14);
tylerjw 10:b13416bbb4cd 16 AnalogIn gps_battery(p20);
tylerjw 7:d8ecabe16c9e 17
tylerjw 7:d8ecabe16c9e 18 void gps_thread(void const *args)
tylerjw 7:d8ecabe16c9e 19 {
tylerjw 10:b13416bbb4cd 20 char buffer[80];
tylerjw 9:4debfbc1fb3e 21
tylerjw 10:b13416bbb4cd 22 DigitalOut gps_led(LED4);
tylerjw 7:d8ecabe16c9e 23
tylerjw 7:d8ecabe16c9e 24 gps.baud(4800);
tylerjw 7:d8ecabe16c9e 25
tylerjw 7:d8ecabe16c9e 26 while(true) {
tylerjw 10:b13416bbb4cd 27 gps.read_line(buffer);
tylerjw 10:b13416bbb4cd 28 gps_led = !gps_led;
tylerjw 10:b13416bbb4cd 29 //pc.puts(buffer);
tylerjw 0:ce5f06c3895f 30 }
tylerjw 7:d8ecabe16c9e 31 }
tylerjw 7:d8ecabe16c9e 32
tylerjw 7:d8ecabe16c9e 33 int main()
tylerjw 7:d8ecabe16c9e 34 {
tylerjw 10:b13416bbb4cd 35 pc.baud(9600);
tylerjw 9:4debfbc1fb3e 36 Thread thread(gps_thread, NULL, osPriorityHigh);
tylerjw 9:4debfbc1fb3e 37
tylerjw 10:b13416bbb4cd 38 while(true) {
tylerjw 10:b13416bbb4cd 39 float sample = gps_battery.read();
tylerjw 10:b13416bbb4cd 40 pc.printf("Sample: %f Volts\r\n", sample*3.3);
tylerjw 10:b13416bbb4cd 41 float voltage = sample*BAT_MUL*3.3;
tylerjw 10:b13416bbb4cd 42 pc.printf("Battery Voltage: %f Volts\r\n", voltage);
tylerjw 10:b13416bbb4cd 43 float level = (voltage-BAT_EMPTY) / (BAT_RANGE);
tylerjw 10:b13416bbb4cd 44 pc.printf("Battery Level: %f \r\n", level);
tylerjw 10:b13416bbb4cd 45
tylerjw 10:b13416bbb4cd 46 Thread::wait(1000);
tylerjw 10:b13416bbb4cd 47 }
tylerjw 0:ce5f06c3895f 48 }