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Dependencies: DHT22 Servo mbed
Fork of Program4_ServoWithTempAndHumidity by
main.cpp
- Committer:
- Maggie17
- Date:
- 2016-05-28
- Revision:
- 4:c778b9ed6508
- Parent:
- 3:98645a154332
- Child:
- 5:86adb825bfd2
File content as of revision 4:c778b9ed6508:
/* mbed Seeed Archlink Temperature Humidity and Servo starter code * * This program take the temperature humidity reading and writes to the USB serial * The servo is actuated for each loop-iteration * Fow how to view the serial output, please refer to the mbed serial cookbook: https://developer.mbed.org/handbook/Serial * * Neil Tan */ #include "mbed.h" // this tells us to load mbed related functions #include "Servo.h" // library for the Servo #include "DHT22.h" // library for the Temp&Humidity sensor DigitalOut myled(LED1); // used as an output for the sensor Servo myservo(p10); // p10 works, using other pins is possible too DHT22 sensor(p6); // the pin of the connected grove port Serial pc(USBTX, USBRX); // serial TX & RX // this code runs when the microcontroller starts up int main() { bool status; pc.printf("\r\nDHT Test program"); pc.printf("\r\n******************\r\n"); // spin a main loop all the time while (1) { // turn off the LED myled = 1; // YOUR CODE HERE: get the status of the sensor checksum, successful or failed // sensor checksum successful if (status) { // printf the temperature and humidity from the sensor pc.printf("Temperature is %f C \r\n", sensor.getTemperature()/10.0f); //the readings need to be divided by 10 pc.printf("Humidity is %f \r\n", sensor.getHumidity()/10.0f); } else { // sensor checksum failed pc.printf("Error reading sample \r\n"); } myservo = 0.0f; wait(5); myservo = 1.0f; wait(5); // turn on the LED myled = 0; } }