AN3956

Sensors

Freescale Semiconductor

7

Functions and the Screen Shot Navigation Path

Color Legend

Inputs: User has to enter in a value, or select a choice, UP or DN. Typical inputs are shown in ‘x’ format. ESC repeatedly

pressed, exits user to main menu.

Outputs: Demo code returns a result or value based on the user inputs.

Simple Weather Station

1. Alti/Baro

Press

2. Waterlevel

UPorDN

3. Inertial

4. Additional

‘4’

Additional

Press

a. Weather

UPorDN

b. Weather Advanced

c. Temp Sensor

‘a’

Please enter your

Altitude (m)

UP/DN

00

m

SIMPLE WEATHER

Weather outlook

Sun/Cloud Symbol

This is the altitude at your

current location. Once its

entered, the value of Pressure

for that altitude is displayed.

The current Weather outlook is

displayed in the options of

Symbols: Sun, Rain,

Sun/Cloud.

Note the difference in pressure

is displayed from current to

Altitude.

Advanced Weather Station

1. Alti/Baro

Press

2. Waterlevel

UPorDN

3. Inertial

4. Additional

‘4’

Additional

Press

a. Weather

UPorDN

b. Weather Advanced

c. Temp Sensor

‘a’

WEATHER

Sun/Cloud

Stable Weather Pattern

This shows the weather in the top right corner from the simple

weather algorithm. The ‘Min’ shows how long the algorithm is

working in minutes. dP/dt shows the differential change per an

hour. The corresponding weather type is predicted in the bottom.

This takes readings for up to 3 hours and compares results to the

algorithm every ½ hour.

Waterlevel Sensing

1. Alti/Baro

Press

2. Waterlevel

UPorDN

3. Inertial

4. Additional

‘2’

2. Waterlevel

MPXV5004 Integrated

40cm H2O Level

Press ENTER

2. Waterlevel

Press

a. Liquid (cm)

UPorDN

b. Alarm system

‘a’

Place in Liquid

ADC 12bit

1179

H2O Level

Pressure

Selection of the Liquid

Waterlevel section in ‘a’.

Place tube attached to

MPXV5004 into water. As it

goes into the water, the value

of water height will be

displayed on the screen along

with Pressure.

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