SEDO subject project
Dependencies: ds3231 mbed-rtos mbed DHT
main.cpp@7:8065e844e99a, 2017-04-29 (annotated)
- Committer:
- ValenSalLop
- Date:
- Sat Apr 29 15:10:34 2017 +0000
- Revision:
- 7:8065e844e99a
- Parent:
- 6:dff022cf4d99
- Child:
- 9:5e9c4277151d
Refactor & Wake up interruption added
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
ValenSalLop | 0:de99871168ac | 1 | #include "mbed.h" |
ValenSalLop | 0:de99871168ac | 2 | #include "rtos.h" |
ValenSalLop | 0:de99871168ac | 3 | #include "ds3231.h" |
ValenSalLop | 5:19ccff89f555 | 4 | #include "DHT.h" |
ValenSalLop | 0:de99871168ac | 5 | |
ValenSalLop | 0:de99871168ac | 6 | #define ESC 0x1B |
ValenSalLop | 0:de99871168ac | 7 | |
ValenSalLop | 3:158f844200a9 | 8 | #define I2C_SDA D14 |
ValenSalLop | 3:158f844200a9 | 9 | #define I2C_SCL D15 |
ValenSalLop | 7:8065e844e99a | 10 | #define DHT_EN_PIN D7 |
ValenSalLop | 7:8065e844e99a | 11 | #define DHT_PIN D6 |
ValenSalLop | 5:19ccff89f555 | 12 | #define M_DIR_PIN D4 |
ValenSalLop | 5:19ccff89f555 | 13 | #define M_SPE_PIN D5 |
ValenSalLop | 0:de99871168ac | 14 | |
ValenSalLop | 7:8065e844e99a | 15 | void setupRTC(); |
ValenSalLop | 0:de99871168ac | 16 | void get_user_input(char* message, uint8_t min, uint8_t max, uint32_t* member); |
ValenSalLop | 0:de99871168ac | 17 | void get_user_input(char* message, uint8_t min, uint8_t max, bool* member); |
ValenSalLop | 7:8065e844e99a | 18 | int readDHT(float* temperature, float* humidity, float* dewPoint); |
ValenSalLop | 7:8065e844e99a | 19 | int measure(time_t* ts, float* temperature, float* humidity, float* dewPoint); |
ValenSalLop | 7:8065e844e99a | 20 | int setMotor(int direction, double speed); |
ValenSalLop | 7:8065e844e99a | 21 | void wakeupFromRTC(void); |
ValenSalLop | 5:19ccff89f555 | 22 | |
ValenSalLop | 5:19ccff89f555 | 23 | Ds3231 rtc(D14, D15); |
ValenSalLop | 5:19ccff89f555 | 24 | |
ValenSalLop | 7:8065e844e99a | 25 | PwmOut m_speed(D4); |
ValenSalLop | 7:8065e844e99a | 26 | DigitalOut m_direction(D5); |
ValenSalLop | 5:19ccff89f555 | 27 | |
ValenSalLop | 7:8065e844e99a | 28 | DHT DHTSensor(D6, DHT11); |
ValenSalLop | 7:8065e844e99a | 29 | DigitalOut DHTEnable(D7); |
ValenSalLop | 5:19ccff89f555 | 30 | |
ValenSalLop | 7:8065e844e99a | 31 | InterruptIn iRTC(D8); |
ValenSalLop | 0:de99871168ac | 32 | |
ValenSalLop | 0:de99871168ac | 33 | int main(void) |
ValenSalLop | 0:de99871168ac | 34 | { |
ValenSalLop | 7:8065e844e99a | 35 | int measureError = 0; |
ValenSalLop | 7:8065e844e99a | 36 | float temperature = 0.0, humidity = 0.0, dewPoint = 0.0; |
ValenSalLop | 7:8065e844e99a | 37 | int motorDirection = 0; |
ValenSalLop | 7:8065e844e99a | 38 | double motorSpeed = 0.0; |
ValenSalLop | 7:8065e844e99a | 39 | char buffer[32]; |
ValenSalLop | 7:8065e844e99a | 40 | time_t ts; |
ValenSalLop | 7:8065e844e99a | 41 | |
ValenSalLop | 7:8065e844e99a | 42 | //setupRTC(); |
ValenSalLop | 7:8065e844e99a | 43 | |
ValenSalLop | 7:8065e844e99a | 44 | iRTC.rise(wakeupFromRTC); |
ValenSalLop | 7:8065e844e99a | 45 | |
ValenSalLop | 7:8065e844e99a | 46 | while(true) { |
ValenSalLop | 7:8065e844e99a | 47 | //printf("%c[2J", ESC); //clear screen |
ValenSalLop | 7:8065e844e99a | 48 | sleep(); |
ValenSalLop | 7:8065e844e99a | 49 | ts = rtc.get_epoch(); |
ValenSalLop | 7:8065e844e99a | 50 | measureError = measure(&ts,&temperature,&humidity,&dewPoint); |
ValenSalLop | 7:8065e844e99a | 51 | |
ValenSalLop | 7:8065e844e99a | 52 | if(!measureError) { |
ValenSalLop | 7:8065e844e99a | 53 | printf("\nTime as seconds since January 1, 1970 = %d\n", ts); |
ValenSalLop | 7:8065e844e99a | 54 | printf("Temperature in Celcius: %4.2f\n", temperature); |
ValenSalLop | 7:8065e844e99a | 55 | printf("Humidity is %4.2f, Dewpoint: %4.2f\n", humidity, dewPoint); |
ValenSalLop | 7:8065e844e99a | 56 | setMotor(motorDirection, motorSpeed); |
ValenSalLop | 7:8065e844e99a | 57 | } |
ValenSalLop | 7:8065e844e99a | 58 | wait(1); |
ValenSalLop | 7:8065e844e99a | 59 | }//loop |
ValenSalLop | 7:8065e844e99a | 60 | } |
ValenSalLop | 7:8065e844e99a | 61 | int measure(time_t* ts, float* temperature, float* humidity, float* dewPoint) |
ValenSalLop | 7:8065e844e99a | 62 | { |
ValenSalLop | 7:8065e844e99a | 63 | int DHTError = 0; |
ValenSalLop | 7:8065e844e99a | 64 | *ts = rtc.get_epoch(); |
ValenSalLop | 7:8065e844e99a | 65 | if(*ts<=0) |
ValenSalLop | 7:8065e844e99a | 66 | return 1; |
ValenSalLop | 7:8065e844e99a | 67 | DHTError = readDHT( temperature, humidity, dewPoint); |
ValenSalLop | 7:8065e844e99a | 68 | if(DHTError) { |
ValenSalLop | 7:8065e844e99a | 69 | printf("DHTError: %d\n", DHTError); |
ValenSalLop | 7:8065e844e99a | 70 | return 2; |
ValenSalLop | 7:8065e844e99a | 71 | } |
ValenSalLop | 7:8065e844e99a | 72 | return 0; |
ValenSalLop | 7:8065e844e99a | 73 | |
ValenSalLop | 7:8065e844e99a | 74 | } |
ValenSalLop | 7:8065e844e99a | 75 | int readDHT(float* temperature, float* humidity, float* dewPoint) |
ValenSalLop | 7:8065e844e99a | 76 | { |
ValenSalLop | 7:8065e844e99a | 77 | int error = 0; |
ValenSalLop | 7:8065e844e99a | 78 | DHTEnable = 1; |
ValenSalLop | 7:8065e844e99a | 79 | wait(2); |
ValenSalLop | 7:8065e844e99a | 80 | error = DHTSensor.readData(); |
ValenSalLop | 7:8065e844e99a | 81 | if (0 == error) { |
ValenSalLop | 7:8065e844e99a | 82 | *temperature = DHTSensor.ReadTemperature(CELCIUS); |
ValenSalLop | 7:8065e844e99a | 83 | *humidity = DHTSensor.ReadHumidity(); |
ValenSalLop | 7:8065e844e99a | 84 | *dewPoint = DHTSensor.CalcdewPoint(*temperature, *humidity); |
ValenSalLop | 7:8065e844e99a | 85 | } |
ValenSalLop | 7:8065e844e99a | 86 | DHTEnable=0; |
ValenSalLop | 7:8065e844e99a | 87 | return error; |
ValenSalLop | 7:8065e844e99a | 88 | } |
ValenSalLop | 7:8065e844e99a | 89 | |
ValenSalLop | 7:8065e844e99a | 90 | int setMotor(int direction, double speed) |
ValenSalLop | 7:8065e844e99a | 91 | { |
ValenSalLop | 7:8065e844e99a | 92 | if(speed<0 or speed>255) |
ValenSalLop | 7:8065e844e99a | 93 | return 1; |
ValenSalLop | 7:8065e844e99a | 94 | else { |
ValenSalLop | 7:8065e844e99a | 95 | m_speed = speed; |
ValenSalLop | 7:8065e844e99a | 96 | if(direction) |
ValenSalLop | 7:8065e844e99a | 97 | m_direction=1; |
ValenSalLop | 7:8065e844e99a | 98 | else |
ValenSalLop | 7:8065e844e99a | 99 | m_direction=0; |
ValenSalLop | 7:8065e844e99a | 100 | } |
ValenSalLop | 7:8065e844e99a | 101 | return 0; |
ValenSalLop | 7:8065e844e99a | 102 | } |
ValenSalLop | 7:8065e844e99a | 103 | |
ValenSalLop | 7:8065e844e99a | 104 | void setupRTC() |
ValenSalLop | 7:8065e844e99a | 105 | { |
ValenSalLop | 7:8065e844e99a | 106 | |
ValenSalLop | 0:de99871168ac | 107 | //default, use bit masks in ds3231.h for desired operation |
ValenSalLop | 5:19ccff89f555 | 108 | ds3231_cntl_stat_t rtc_control_status = {0,0}; |
ValenSalLop | 0:de99871168ac | 109 | ds3231_time_t rtc_time; |
ValenSalLop | 0:de99871168ac | 110 | ds3231_calendar_t rtc_calendar; |
ValenSalLop | 5:19ccff89f555 | 111 | |
ValenSalLop | 0:de99871168ac | 112 | rtc.set_cntl_stat_reg(rtc_control_status); |
ValenSalLop | 5:19ccff89f555 | 113 | |
ValenSalLop | 0:de99871168ac | 114 | //get day from user |
ValenSalLop | 0:de99871168ac | 115 | get_user_input("\nPlease enter day of week, 1 for Sunday (1-7): ", 1, |
ValenSalLop | 5:19ccff89f555 | 116 | 7, &rtc_calendar.day); |
ValenSalLop | 0:de99871168ac | 117 | |
ValenSalLop | 0:de99871168ac | 118 | //get day of month from user |
ValenSalLop | 5:19ccff89f555 | 119 | get_user_input("\nPlease enter day of month (1-31): ", 1, 31, |
ValenSalLop | 5:19ccff89f555 | 120 | &rtc_calendar.date); |
ValenSalLop | 0:de99871168ac | 121 | |
ValenSalLop | 0:de99871168ac | 122 | //get month from user |
ValenSalLop | 5:19ccff89f555 | 123 | get_user_input("\nPlease enter the month, 1 for January (1-12): ", 1, |
ValenSalLop | 5:19ccff89f555 | 124 | 12, &rtc_calendar.month); |
ValenSalLop | 0:de99871168ac | 125 | |
ValenSalLop | 0:de99871168ac | 126 | //get year from user |
ValenSalLop | 5:19ccff89f555 | 127 | get_user_input("\nPlease enter the year (0-99): ",0, 99, |
ValenSalLop | 5:19ccff89f555 | 128 | &rtc_calendar.year); |
ValenSalLop | 5:19ccff89f555 | 129 | |
ValenSalLop | 0:de99871168ac | 130 | //Get time mode |
ValenSalLop | 5:19ccff89f555 | 131 | get_user_input("\nWhat time mode? 1 for 12hr 0 for 24hr: ", 0, 1, |
ValenSalLop | 5:19ccff89f555 | 132 | &rtc_time.mode); |
ValenSalLop | 5:19ccff89f555 | 133 | |
ValenSalLop | 5:19ccff89f555 | 134 | if(rtc_time.mode) { |
ValenSalLop | 0:de99871168ac | 135 | //Get AM/PM status |
ValenSalLop | 5:19ccff89f555 | 136 | get_user_input("\nIs it AM or PM? 0 for AM 1 for PM: ", 0, 1, |
ValenSalLop | 5:19ccff89f555 | 137 | &rtc_time.am_pm); |
ValenSalLop | 0:de99871168ac | 138 | //Get hour from user |
ValenSalLop | 5:19ccff89f555 | 139 | get_user_input("\nPlease enter the hour (1-12): ", 1, 12, |
ValenSalLop | 5:19ccff89f555 | 140 | &rtc_time.hours); |
ValenSalLop | 5:19ccff89f555 | 141 | } else { |
ValenSalLop | 5:19ccff89f555 | 142 | //Get hour from user |
ValenSalLop | 5:19ccff89f555 | 143 | get_user_input("\nPlease enter the hour (0-23): ", 0, 23, |
ValenSalLop | 0:de99871168ac | 144 | &rtc_time.hours); |
ValenSalLop | 0:de99871168ac | 145 | } |
ValenSalLop | 5:19ccff89f555 | 146 | |
ValenSalLop | 0:de99871168ac | 147 | //Get minutes from user |
ValenSalLop | 5:19ccff89f555 | 148 | get_user_input("\nPlease enter the minute (0-59): ", 0, 59, |
ValenSalLop | 0:de99871168ac | 149 | &rtc_time.minutes); |
ValenSalLop | 5:19ccff89f555 | 150 | |
ValenSalLop | 5:19ccff89f555 | 151 | |
ValenSalLop | 0:de99871168ac | 152 | //Get seconds from user |
ValenSalLop | 5:19ccff89f555 | 153 | get_user_input("\nPlease enter the second (0-59): ", 0, 59, |
ValenSalLop | 0:de99871168ac | 154 | &rtc_time.seconds); |
ValenSalLop | 5:19ccff89f555 | 155 | |
ValenSalLop | 5:19ccff89f555 | 156 | |
ValenSalLop | 5:19ccff89f555 | 157 | |
ValenSalLop | 0:de99871168ac | 158 | //Set the time, uses inverted logic for return value |
ValenSalLop | 5:19ccff89f555 | 159 | if(rtc.set_time(rtc_time)) { |
ValenSalLop | 0:de99871168ac | 160 | printf("\nrtc.set_time failed!!\n"); |
ValenSalLop | 0:de99871168ac | 161 | exit(0); |
ValenSalLop | 0:de99871168ac | 162 | } |
ValenSalLop | 5:19ccff89f555 | 163 | |
ValenSalLop | 0:de99871168ac | 164 | //Set the calendar, uses inverted logic for return value |
ValenSalLop | 5:19ccff89f555 | 165 | if(rtc.set_calendar(rtc_calendar)) { |
ValenSalLop | 0:de99871168ac | 166 | printf("\nrtc.set_calendar failed!!\n"); |
ValenSalLop | 0:de99871168ac | 167 | exit(0); |
ValenSalLop | 0:de99871168ac | 168 | } |
ValenSalLop | 5:19ccff89f555 | 169 | |
ValenSalLop | 5:19ccff89f555 | 170 | |
ValenSalLop | 0:de99871168ac | 171 | } |
ValenSalLop | 0:de99871168ac | 172 | |
ValenSalLop | 0:de99871168ac | 173 | /********************************************************************** |
ValenSalLop | 5:19ccff89f555 | 174 | * Function: get_user_input() |
ValenSalLop | 0:de99871168ac | 175 | * Parameters: message - user prompt |
ValenSalLop | 0:de99871168ac | 176 | * min - minimum value of input |
ValenSalLop | 0:de99871168ac | 177 | * max - maximum value of input |
ValenSalLop | 5:19ccff89f555 | 178 | * member - pointer to struct member |
ValenSalLop | 0:de99871168ac | 179 | * Returns: none |
ValenSalLop | 0:de99871168ac | 180 | * |
ValenSalLop | 0:de99871168ac | 181 | * Description: get time/date input from user |
ValenSalLop | 0:de99871168ac | 182 | * |
ValenSalLop | 0:de99871168ac | 183 | **********************************************************************/ |
ValenSalLop | 0:de99871168ac | 184 | void get_user_input(char* message, uint8_t min, uint8_t max, uint32_t* member) |
ValenSalLop | 0:de99871168ac | 185 | { |
ValenSalLop | 0:de99871168ac | 186 | uint32_t temp; |
ValenSalLop | 0:de99871168ac | 187 | |
ValenSalLop | 5:19ccff89f555 | 188 | do { |
ValenSalLop | 0:de99871168ac | 189 | printf("\n%s", message); |
ValenSalLop | 5:19ccff89f555 | 190 | |
ValenSalLop | 0:de99871168ac | 191 | //for some reason mbed doesn't like a pointer to a member in scanf |
ValenSalLop | 0:de99871168ac | 192 | //term.scanf("%d", member); works with gcc on RPi |
ValenSalLop | 0:de99871168ac | 193 | scanf("%d", &temp); |
ValenSalLop | 5:19ccff89f555 | 194 | |
ValenSalLop | 0:de99871168ac | 195 | *member = temp; |
ValenSalLop | 5:19ccff89f555 | 196 | |
ValenSalLop | 5:19ccff89f555 | 197 | if((*(member)< min) || (*(member) > max)) { |
ValenSalLop | 0:de99871168ac | 198 | printf("\nERROR-RTI"); |
ValenSalLop | 0:de99871168ac | 199 | } |
ValenSalLop | 5:19ccff89f555 | 200 | } while((*(member) < min) || (*(member) > max)); |
ValenSalLop | 0:de99871168ac | 201 | } |
ValenSalLop | 0:de99871168ac | 202 | |
ValenSalLop | 0:de99871168ac | 203 | |
ValenSalLop | 0:de99871168ac | 204 | void get_user_input(char* message, uint8_t min, uint8_t max, bool* member) |
ValenSalLop | 0:de99871168ac | 205 | { |
ValenSalLop | 0:de99871168ac | 206 | uint32_t temp; |
ValenSalLop | 0:de99871168ac | 207 | |
ValenSalLop | 5:19ccff89f555 | 208 | do { |
ValenSalLop | 0:de99871168ac | 209 | printf("\n%s", message); |
ValenSalLop | 5:19ccff89f555 | 210 | |
ValenSalLop | 0:de99871168ac | 211 | //for some reason mbed doesn't like a pointer to a member in scanf |
ValenSalLop | 0:de99871168ac | 212 | //term.scanf("%d", member); works with gcc on RPi |
ValenSalLop | 0:de99871168ac | 213 | scanf("%d", &temp); |
ValenSalLop | 5:19ccff89f555 | 214 | |
ValenSalLop | 0:de99871168ac | 215 | *member = temp; |
ValenSalLop | 5:19ccff89f555 | 216 | |
ValenSalLop | 5:19ccff89f555 | 217 | if((*(member)< min) || (*(member) > max)) { |
ValenSalLop | 0:de99871168ac | 218 | printf("\nERROR-RTI"); |
ValenSalLop | 0:de99871168ac | 219 | } |
ValenSalLop | 5:19ccff89f555 | 220 | } while((*(member) < min) || (*(member) > max)); |
ValenSalLop | 0:de99871168ac | 221 | } |
ValenSalLop | 7:8065e844e99a | 222 | void wakeupFromRTC(void){} |
ValenSalLop | 0:de99871168ac | 223 |