Keisha Brathwaite
/
KBrat-SSD645-HW-3_2_Q6
KBrat-SSD645-HW-3_2_Q6
Fork of lightsense_kl46z_PWM_simple by
main.cpp@8:ea818c9220fc, 2016-01-25 (annotated)
- Committer:
- scohennm
- Date:
- Mon Jan 25 16:10:38 2016 +0000
- Revision:
- 8:ea818c9220fc
- Parent:
- 7:8d7089b514ae
- Child:
- 9:cc9cde5252e0
Demo of light sensor reading for NMHU Ambient computing Spring 2016 HW 2.1
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
scohennm | 0:e23fffd4b9a7 | 1 | #include "mbed.h" |
scohennm | 1:51f8c2b04ce2 | 2 | #include "SLCD.h" |
scohennm | 1:51f8c2b04ce2 | 3 | |
scohennm | 3:64e28ee5719b | 4 | |
scohennm | 8:ea818c9220fc | 5 | #define PROGNAME "lightsense_kl46z_PWM v1\n\r" |
scohennm | 8:ea818c9220fc | 6 | #define DATATIME 400 // milliseconds |
scohennm | 1:51f8c2b04ce2 | 7 | #define LCDLEN 10 |
scohennm | 8:ea818c9220fc | 8 | #define LIGHTSENSORPORT PTE22 |
scohennm | 6:710e18c552f5 | 9 | |
scohennm | 6:710e18c552f5 | 10 | |
scohennm | 0:e23fffd4b9a7 | 11 | |
scohennm | 4:bd42ab18979b | 12 | SLCD slcd; //define LCD display globally define |
scohennm | 1:51f8c2b04ce2 | 13 | Serial pc(USBTX, USBRX); |
scohennm | 8:ea818c9220fc | 14 | Timer LEDTimer; |
scohennm | 1:51f8c2b04ce2 | 15 | |
scohennm | 1:51f8c2b04ce2 | 16 | void LCDMess(char *lMess){ |
scohennm | 1:51f8c2b04ce2 | 17 | slcd.Home(); |
scohennm | 1:51f8c2b04ce2 | 18 | slcd.clear(); |
scohennm | 1:51f8c2b04ce2 | 19 | slcd.printf(lMess); |
scohennm | 1:51f8c2b04ce2 | 20 | } |
scohennm | 0:e23fffd4b9a7 | 21 | |
scohennm | 0:e23fffd4b9a7 | 22 | int main() { |
scohennm | 8:ea818c9220fc | 23 | PwmOut greenColor(LED_GREEN); |
scohennm | 8:ea818c9220fc | 24 | PwmOut redColor(LED_RED); |
scohennm | 8:ea818c9220fc | 25 | AnalogIn LightSensor(LIGHTSENSORPORT); |
scohennm | 6:710e18c552f5 | 26 | float lightData; |
scohennm | 1:51f8c2b04ce2 | 27 | char lcdData[LCDLEN]; |
scohennm | 4:bd42ab18979b | 28 | |
scohennm | 8:ea818c9220fc | 29 | int timeToChangeDF = DATATIME; |
scohennm | 3:64e28ee5719b | 30 | // set up timer for next step of Duty Factor timing |
scohennm | 3:64e28ee5719b | 31 | LEDTimer.start(); |
scohennm | 3:64e28ee5719b | 32 | LEDTimer.reset(); |
scohennm | 1:51f8c2b04ce2 | 33 | pc.printf(PROGNAME); |
scohennm | 1:51f8c2b04ce2 | 34 | |
scohennm | 3:64e28ee5719b | 35 | |
scohennm | 8:ea818c9220fc | 36 | while(true) { |
scohennm | 8:ea818c9220fc | 37 | if (LEDTimer.read_ms() > timeToChangeDF){ // check for timer time out transtion |
scohennm | 8:ea818c9220fc | 38 | lightData = (1.0 - LightSensor.read()); // show as increasiing with increasing intensity |
scohennm | 8:ea818c9220fc | 39 | greenColor.write(1.0- lightData); |
scohennm | 8:ea818c9220fc | 40 | redColor.write(1.0-lightData); |
scohennm | 8:ea818c9220fc | 41 | sprintf(lcdData,"%4.3f",lightData); |
scohennm | 8:ea818c9220fc | 42 | LCDMess(lcdData); |
scohennm | 8:ea818c9220fc | 43 | pc.printf("%4.3f\r\n",lightData); |
scohennm | 8:ea818c9220fc | 44 | timeToChangeDF = DATATIME; |
scohennm | 8:ea818c9220fc | 45 | LEDTimer.reset(); |
scohennm | 8:ea818c9220fc | 46 | } |
scohennm | 4:bd42ab18979b | 47 | }// emd while |
scohennm | 4:bd42ab18979b | 48 | } |