Common anode LED version of my Smart Nightlight program. For use at the Adrift faculty development activity.
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This is my smart nightlight demo code. This version is for common anode LEDs (uses negative logic).
main.cpp
- Committer:
- CSTritt
- Date:
- 2017-03-27
- Revision:
- 0:8ed2f4a2a2fe
- Child:
- 1:4647b43d61ef
File content as of revision 0:8ed2f4a2a2fe:
/* Project: analogRead_Overlaods File: main.cpp Reads from analog input, streams ASCII text to std serial using printf, and lights onboard LED. Also demonstrates use of floating point literal sufix to eliminate warning and int constants for HIGH and LOW. This version uses overloaded operators. Written by: Dr. C. S. Tritt Created: 3/26/17 (v. 1.0) */ #include "mbed.h" const int HIGH = 1; // Optional, but makes code more readable. const int LOW = 0; // Optional, but makes code more readable. AnalogIn analog_value(A0); DigitalOut led(LED1); int main() { float value; // Value to be read and sent to serial port. printf("\nAnalogIn example\n"); while(true) { value = analog_value; // Read the analog input value (0 to 1) printf("Value = %f\n", value); // Send value as text via serial port. if (value > 0.5f) { // Activate built-in LED. The f is optional. led = HIGH; } else { led = LOW; } wait(0.25); // 250 ms } }