znrobotics 智能工场 / Mbed 2 deprecated Seeed_Arch_link_ServoWithTempAndHumidity

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Dependencies:   DHT22 Servo mbed

Fork of Program4_ServoWithTempAndHumidity by Robotics Kit Workshop

main.cpp@1:ccef6d6d9b62, 2016-05-17 (annotated)

Committer:
nprobably
Date:
Tue May 17 23:38:58 2016 +0000
Revision:
1:ccef6d6d9b62
Parent:
0:671eadfdf703
Child:
2:3d87a559769a
added comments

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nprobably 1:ccef6d6d9b62 1 /* mbed Seeed Archlink Temperature Humidity and Servo starter code
nprobably 1:ccef6d6d9b62 2 *
nprobably 1:ccef6d6d9b62 3 * This program take the temperature humidity reading and writes to the USB serial
nprobably 1:ccef6d6d9b62 4 * The servo is actuated for each loop-iteration
nprobably 1:ccef6d6d9b62 5 * Fow how to view the serial output, please refer to the mbed serial cookbook: https://developer.mbed.org/handbook/Serial
nprobably 1:ccef6d6d9b62 6 *
nprobably 1:ccef6d6d9b62 7 * Neil Tan
nprobably 1:ccef6d6d9b62 8 */
nprobably 1:ccef6d6d9b62 9
nprobably 1:ccef6d6d9b62 10
nprobably 0:671eadfdf703 11 #include "mbed.h"
nprobably 0:671eadfdf703 12 #include "Servo.h"
nprobably 0:671eadfdf703 13 #include "DHT22.h"
nprobably 0:671eadfdf703 14
nprobably 0:671eadfdf703 15 DigitalOut myled(LED1);
nprobably 1:ccef6d6d9b62 16 Servo myservo(p4); //p4 works, using other pins is possible too
nprobably 1:ccef6d6d9b62 17 DHT22 sensor(p6); //the pin of the connected grove port
nprobably 0:671eadfdf703 18 Serial pc(USBTX, USBRX);
nprobably 0:671eadfdf703 19
nprobably 0:671eadfdf703 20 int main() {
nprobably 0:671eadfdf703 21
nprobably 0:671eadfdf703 22 bool status;
nprobably 0:671eadfdf703 23 pc.printf("\r\nDHT Test program");
nprobably 0:671eadfdf703 24 pc.printf("\r\n******************\r\n");
nprobably 0:671eadfdf703 25 while (1) {
nprobably 0:671eadfdf703 26 myled = 1;
nprobably 1:ccef6d6d9b62 27 status = sensor.sample(); //returns false if the sensor checksum fails
nprobably 0:671eadfdf703 28 if (status) {
nprobably 1:ccef6d6d9b62 29 pc.printf("Temperature is %f C \r\n", sensor.getTemperature()/10.0f); //the readings need to be divided by 10
nprobably 0:671eadfdf703 30 pc.printf("Humidity is %f \r\n", sensor.getHumidity()/10.0f);
nprobably 0:671eadfdf703 31 } else {
nprobably 0:671eadfdf703 32 pc.printf("Error reading sample \r\n");
nprobably 0:671eadfdf703 33 }
nprobably 0:671eadfdf703 34
nprobably 0:671eadfdf703 35 myservo = 0.0f;
nprobably 0:671eadfdf703 36 wait(5);
nprobably 0:671eadfdf703 37 myservo = 1.0f;
nprobably 0:671eadfdf703 38 wait(5);
nprobably 0:671eadfdf703 39
nprobably 0:671eadfdf703 40 myled = 0;
nprobably 0:671eadfdf703 41 }
nprobably 0:671eadfdf703 42 }