Humidity and Temperature sensing using sensor DHT11 Sensor using NI myDAQ

[AdithyaRajeev]

Hello,

I am using sensor DHT11 for Humidity and Temperature measurement using NI myDAQ. How do I measure the same using LabVIEW VI.

I see that the Data format is :

The 8bit humidity integer data + 8bit the Humidity decimal data +8 bit temperature integer data +
8bit fractional temperature data +8 bit parity bit

For Example 1: 40 data is received:
0011 0101             0000 0000                   0001 1000                     0000 0000         0100 1101
High humidity       Low humidity               High temp                       Low temp          Parity bit
8                                 8                                  8                                       8                          8
 
Calculate ：

0011 0101+0000 0000+0001 1000+0000 0000= 0100 1101
Received data is correct
：
Humidity ： 0011 0101=35H=53%RH
Temperature ：0001 1000=18H=24 °C

[Hooovahh]

Several libraries have been written for the DHT sensors.  Here is one.

http://playground.arduino.cc/main/DHT11Lib

Post what code you have.  I have a DHT sensor, but no myDAQ.  If you run into problems you'll likely want a signal analyzer, or at least a scope to see what the signal looks like.

[CodyBrown]

Any luck connecting the sensor to the MyDaq?