Freedom Example for the Seeed Grove Humidity and Temperature Sensor

Dependencies:   DHT mbed

Fork of frdm_Grove_Temp-Humidity_Example by Freescale

Simply Import this Program into your mbed compiler
Select Compile to generate the binary file
Open an Hyperterminal window and connect to the mbed Serial Port (COMxx) peripheral using speed 9600bps
Plug the Grove Shield v2 on the top of your FRDM-K64F
Connect on end of the 4-pin Grove cable to the Temperature and Humidity module and the other end to the port A1 of the Grove Adapter.

Drag n drop the frdm_Grove_Temp-Humidity_Example.bin into the mbed drive from your file explorer
Wait for download to complete
Press the Reset/SW1 button of your FRDM-K64F board to launch the program

Your hyperterminal window should now display Temperature and Humidity measurements (see picture below)!!

Committer:
GregC
Date:
Thu Dec 31 22:03:48 2015 +0000
Revision:
0:9d72427a0730
frdm Seeed Grove Temp-Humidity Example

Who changed what in which revision?

UserRevisionLine numberNew contents of line
GregC 0:9d72427a0730 1
GregC 0:9d72427a0730 2 #include "mbed.h"
GregC 0:9d72427a0730 3 #include "DHT.h"
GregC 0:9d72427a0730 4
GregC 0:9d72427a0730 5 DHT sensor(D4, DHT11);
GregC 0:9d72427a0730 6
GregC 0:9d72427a0730 7 int main()
GregC 0:9d72427a0730 8 {
GregC 0:9d72427a0730 9 int error = 0;
GregC 0:9d72427a0730 10 float h = 0.0f, c = 0.0f, f = 0.0f, k = 0.0f, dp = 0.0f, dpf = 0.0f;
GregC 0:9d72427a0730 11
GregC 0:9d72427a0730 12 while(1) {
GregC 0:9d72427a0730 13 wait(2.0f);
GregC 0:9d72427a0730 14 error = sensor.readData();
GregC 0:9d72427a0730 15 if (0 == error) {
GregC 0:9d72427a0730 16 c = sensor.ReadTemperature(CELCIUS);
GregC 0:9d72427a0730 17 f = sensor.ReadTemperature(FARENHEIT);
GregC 0:9d72427a0730 18 k = sensor.ReadTemperature(KELVIN);
GregC 0:9d72427a0730 19 h = sensor.ReadHumidity();
GregC 0:9d72427a0730 20 dp = sensor.CalcdewPoint(c, h);
GregC 0:9d72427a0730 21 dpf = sensor.CalcdewPointFast(c, h);
GregC 0:9d72427a0730 22 printf("Temperature in Kelvin: %4.2f, Celcius: %4.2f, Farenheit %4.2f\n", k, c, f);
GregC 0:9d72427a0730 23 printf("Humidity is %4.2f, Dewpoint: %4.2f, Dewpoint fast: %4.2f\n", h, dp, dpf);
GregC 0:9d72427a0730 24 } else {
GregC 0:9d72427a0730 25 printf("Error: %d\n", error);
GregC 0:9d72427a0730 26 }
GregC 0:9d72427a0730 27 }
GregC 0:9d72427a0730 28 }