Freedom Example for the Seeed Grove Humidity and Temperature Sensor
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 D4 of the Grove Adapter
.
Drag n drop the frdm_Grove_Temp-Humidity_Example_K64F.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)!!
Revision 0:9d72427a0730, committed 2015-12-31
- Comitter:
- GregC
- Date:
- Thu Dec 31 22:03:48 2015 +0000
- Commit message:
- frdm Seeed Grove Temp-Humidity Example
Changed in this revision
diff -r 000000000000 -r 9d72427a0730 DHT.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/DHT.lib Thu Dec 31 22:03:48 2015 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/teams/components/code/DHT/#df22ddf10d75
diff -r 000000000000 -r 9d72427a0730 main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Thu Dec 31 22:03:48 2015 +0000 @@ -0,0 +1,28 @@ + +#include "mbed.h" +#include "DHT.h" + +DHT sensor(D4, DHT11); + +int main() +{ + int error = 0; + float h = 0.0f, c = 0.0f, f = 0.0f, k = 0.0f, dp = 0.0f, dpf = 0.0f; + + while(1) { + wait(2.0f); + error = sensor.readData(); + if (0 == error) { + c = sensor.ReadTemperature(CELCIUS); + f = sensor.ReadTemperature(FARENHEIT); + k = sensor.ReadTemperature(KELVIN); + h = sensor.ReadHumidity(); + dp = sensor.CalcdewPoint(c, h); + dpf = sensor.CalcdewPointFast(c, h); + printf("Temperature in Kelvin: %4.2f, Celcius: %4.2f, Farenheit %4.2f\n", k, c, f); + printf("Humidity is %4.2f, Dewpoint: %4.2f, Dewpoint fast: %4.2f\n", h, dp, dpf); + } else { + printf("Error: %d\n", error); + } + } +}
diff -r 000000000000 -r 9d72427a0730 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Thu Dec 31 22:03:48 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/9327015d4013 \ No newline at end of file