UM0501
Demonstration applications
Doc ID 14320 Rev 3
11/23
UP
:
Press the joystick
UP
to exit this demo.
KEY
: Press
KEY
repeatedly to enable the output of each converted value option in turn.
LCD only
LCD+Buzzer
LCD+USART1
LCD+USART2
LCD+USART2
LCD+Buzzer
LCD only
etc...
2.5
ADC demo 2
This is the same as ADC demo 1, except that the CN3 connector on the evaluation board is
used to enter the analog voltage to be converted.
UP
: Press the joystick
UP
to exit this demo.
KEY
: Press
KEY
to enable/disable output values on USART1, USART2 and buzzer as
described in the previous section.
2.6
ADC demo 3
This is the same as ADC demo 1 and ADC demo 2, except that the microphone (U8) is
used.
Note:
The JP5 jumper must be installed for this demo to work.
A first message is displayed with a few seconds delay with all LEDs OFF (see
).
Figure 7.
ADC demo 3 message
After 3 “noises” are heard, the demo starts and the LCD displays the same messages as in
ADC demo 1 and demo 2.
UP
: Press the joystick
UP
to exit this demo.
KEY
: Press
KEY
to enable/disable output values on USART1, USART2 and buzzer.
Note:
If no sound is detected, you can adjust the microphone level using the RV3 potentiometer.
You can also make a sound by touching the microphone.
Clap 3 times
to wake me up
