Example code 06
Dependencies: mbed
Fork of STMNucleoF401RE_ExampleCode_06_VariableR by
Il circuito
main.cpp@0:4a795cf05594, 2015-11-02 (annotated)
- Committer:
- perlatecnica
- Date:
- Mon Nov 02 13:55:39 2015 +0000
- Revision:
- 0:4a795cf05594
- Child:
- 1:25052aedb239
v1.0
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
perlatecnica | 0:4a795cf05594 | 1 | /**************************************************** |
perlatecnica | 0:4a795cf05594 | 2 | * FAST PROTOTYPING WITH NUCLEO * |
perlatecnica | 0:4a795cf05594 | 3 | * Example Code 06: Variable resistor * |
perlatecnica | 0:4a795cf05594 | 4 | * Author: Mauro D'Angelo * |
perlatecnica | 0:4a795cf05594 | 5 | * Organization: Perlatecnica no-profit organization * |
perlatecnica | 0:4a795cf05594 | 6 | *****************************************************/ |
perlatecnica | 0:4a795cf05594 | 7 | |
perlatecnica | 0:4a795cf05594 | 8 | #include "mbed.h" |
perlatecnica | 0:4a795cf05594 | 9 | |
perlatecnica | 0:4a795cf05594 | 10 | // Instanzia un oggetto di tipo AnalogIn che chiamo analog_value, e lo assegna al pin A0 |
perlatecnica | 0:4a795cf05594 | 11 | AnalogIn analog_value(A0); |
perlatecnica | 0:4a795cf05594 | 12 | |
perlatecnica | 0:4a795cf05594 | 13 | DigitalOut led(LED1); |
perlatecnica | 0:4a795cf05594 | 14 | |
perlatecnica | 0:4a795cf05594 | 15 | int main() { |
perlatecnica | 0:4a795cf05594 | 16 | float meas; |
perlatecnica | 0:4a795cf05594 | 17 | |
perlatecnica | 0:4a795cf05594 | 18 | while(1) { |
perlatecnica | 0:4a795cf05594 | 19 | meas = analog_value.read(); // It reads the analog input value (value from 0.0 to 1.0) |
perlatecnica | 0:4a795cf05594 | 20 | meas = meas * 3300; // Change the value to be in the 0 to 3300 range |
perlatecnica | 0:4a795cf05594 | 21 | printf("measure = %.2f mV\r\n", meas); |
perlatecnica | 0:4a795cf05594 | 22 | if (meas > 2000) { // If the value is greater than 2V then switch the LED on |
perlatecnica | 0:4a795cf05594 | 23 | led = 1; |
perlatecnica | 0:4a795cf05594 | 24 | } |
perlatecnica | 0:4a795cf05594 | 25 | else { |
perlatecnica | 0:4a795cf05594 | 26 | led = 0; |
perlatecnica | 0:4a795cf05594 | 27 | } |
perlatecnica | 0:4a795cf05594 | 28 | wait(0.2); // 200 ms |
perlatecnica | 0:4a795cf05594 | 29 | } |
perlatecnica | 0:4a795cf05594 | 30 | } |