I developed a Weather Station using the mydaq, some off the shelf sensors and LabVIEW.
myWeatherStation takes readings for atmospheric pressure, air temperature (°C) and a light level.
The circuit consists of an absolute pressure sensor (for measuring atmospheric pressure) , a thermistor and a light dependant resistor. These sensors generate an analog voltage which is read in by the myDAQ. The circuit also has an analog multiplexer with digital select lines to multiplex through the sensors, as there are two analog inputs on the myDAQ.
The LabVIEW VI consists of a simple state machine architecture, which moves through and reads each analog voltage, applies transfer functions and outputs the measurements to the front panel.
You can use the attached VI's (MyWeatherStation how-to Guide Version) and the guide to create the weatherstation. There is also the completed version if you want to see the finished VI straight away!
Ben B.
Applications Engineer National Instruments UK & Ireland
"I've looked into the reset button, the science is impossible!"
