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.
2.
3.
4.
Alti/Baro
Waterlevel
Inertial
Additional
Press
UPorDN
‘4’
Additional
Press
a. Weather
UPorDN
b. Weather Advanced
c. Temp Sensor
‘a’
Please enter your
Altitude (m)
UP/DN
101.3
kPa
00
m
SIMPLE WEATHER
Weather outlook
0.423
kPa
Sun/Cloud Symbol
ENT
ENT
ENT
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
2. Waterlevel
3. Inertial
4. Additional
Press
UPorDN
‘4’
Additional
Press
a. Weather
UPorDN
b. Weather Advanced
c. Temp Sensor
‘a’
WEATHER
Sun/Cloud
Min
0224
dP/dt
-0.042
Stable Weather Pattern
ENT
ENT
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
2. Waterlevel
3. Inertial
4. Additional
Press
UPorDN
‘2’
2. Waterlevel
MPXV5004 Integrated
40cm H2O Level
Press ENTER
2. Waterlevel
a. Liquid (cm)
b. Alarm system
Press
UPorDN
‘a’
Place in Liquid
ADC 12bit
H2O Level
Pressure
1179
0.0
cm
0.0
kPa
ENT
ENT
Selection of the Liquid
Waterlevel section in ‘a’.
ENT
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.
AN3956
Sensors
Freescale Semiconductor
7
FREESCALE [ FREESCALE SEMICONDUCTOR, INC ]
