Zoltan Hudak
Reading analog input with an STM32F103C8T6 board. ADC is calibrated to achieve higher accuracy.
Reading analog input with STM32F103C8T6 board
Import the program into your online compiler.
Schematic
main.cpp@2:b0563c2ef616, 2019-02-05 (annotated)
- Committer:
- hudakz
- Date:
- Tue Feb 05 13:09:02 2019 +0000
- Revision:
- 2:b0563c2ef616
- Parent:
- 1:7522adef9bd0
Updated.
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| hudakz | 0:5d7148c1f26a | 1 | #include "mbed.h" |
| hudakz | 1:7522adef9bd0 | 2 | #include "AnalogIn.h" |
| hudakz | 1:7522adef9bd0 | 3 | |
| hudakz | 1:7522adef9bd0 | 4 | const float REF_VOLT = 3300; // Reference voltage in millivolts |
| hudakz | 0:5d7148c1f26a | 5 | |
| hudakz | 1:7522adef9bd0 | 6 | Serial pc(PA_2, PA_3); |
| hudakz | 2:b0563c2ef616 | 7 | DigitalOut myled(PC_13); |
| hudakz | 1:7522adef9bd0 | 8 | AnalogIn analogIn(PA_0); // Create an analog input |
| hudakz | 1:7522adef9bd0 | 9 | float voltage; |
| hudakz | 0:5d7148c1f26a | 10 | |
| hudakz | 1:7522adef9bd0 | 11 | int main() |
| hudakz | 1:7522adef9bd0 | 12 | { |
| hudakz | 0:5d7148c1f26a | 13 | while (1) { |
| hudakz | 0:5d7148c1f26a | 14 | voltage = analogIn.read() * REF_VOLT; // convert analog to digital |
| hudakz | 0:5d7148c1f26a | 15 | pc.printf("voltage = %.0f mV\r\n", voltage); |
| hudakz | 0:5d7148c1f26a | 16 | myled = !myled; |
| hudakz | 0:5d7148c1f26a | 17 | wait_ms(1000); |
| hudakz | 0:5d7148c1f26a | 18 | } |
| hudakz | 0:5d7148c1f26a | 19 | } |
| hudakz | 0:5d7148c1f26a | 20 |