PIR grove sensor that sends the sensed data to Thingspeak.com through the wifi module ESP 8266
AnalogIn Class Reference
[Drivers]
An analog input, used for reading the voltage on a pin. More...
#include <AnalogIn.h>
Public Member Functions | |
AnalogIn (PinName pin) | |
Create an AnalogIn, connected to the specified pin. | |
float | read () |
Read the input voltage, represented as a float in the range [0.0, 1.0]. | |
unsigned short | read_u16 () |
Read the input voltage, represented as an unsigned short in the range [0x0, 0xFFFF]. | |
operator float () | |
An operator shorthand for read() |
Detailed Description
An analog input, used for reading the voltage on a pin.
Synchronization level: Thread safe
Example:
// Print messages when the AnalogIn is greater than 50% #include "mbed.h" AnalogIn temperature(p20); int main() { while(1) { if(temperature > 0.5) { printf("Too hot! (%f)", temperature.read()); } } }
Definition at line 52 of file AnalogIn.h.
Constructor & Destructor Documentation
AnalogIn | ( | PinName | pin ) |
Create an AnalogIn, connected to the specified pin.
- Parameters:
-
pin AnalogIn pin to connect to name (optional) A string to identify the object
Definition at line 61 of file AnalogIn.h.
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