Jea Du Kim / FSR

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Dependents:   Smart_Car_Seat_v1

Fork of FSR by Chenkai Shao

FSR.h@6:71a6328709ea, 2017-05-03 (annotated)

Committer:
jd0205
Date:
Wed May 03 21:01:09 2017 +0000
Revision:
6:71a6328709ea
Parent:
5:d9520bf7eb9e 
Just personal changes

Who changed what in which revision?

UserRevisionLine numberNew contents of line
cshao06 0:d24a38523990 1 #ifndef FSR_H
cshao06 0:d24a38523990 2 #define FSR_H
cshao06 0:d24a38523990 3
cshao06 0:d24a38523990 4 #include "mbed.h"
cshao06 0:d24a38523990 5
cshao06 0:d24a38523990 6 /** Force sensitive resistor class using an AnalogIn pin
cshao06 0:d24a38523990 7 *
cshao06 0:d24a38523990 8 * Example:
cshao06 0:d24a38523990 9 * @code
cshao06 0:d24a38523990 10 * #include "mbed.h"
cshao06 0:d24a38523990 11 * #include "FSR.h"
cshao06 5:d9520bf7eb9e 12 * FSR fsr(p20, 10); // Pin 20 is used as the AnalogIn pin and a 10k resistor is used as a voltage divider
cshao06 0:d24a38523990 13 * int main(){
cshao06 0:d24a38523990 14 * while (1)
cshao06 0:d24a38523990 15 * {
cshao06 0:d24a38523990 16 * printf("The raw data is %f\n", fsr.readRaw());
cshao06 0:d24a38523990 17 * printf("The resistance of the FSR is %f\n", fsr.readFSRResistance());
cshao06 0:d24a38523990 18 * printf("The weight on the FSR is %f\n\n", fsr.readWeight());
cshao06 0:d24a38523990 19 * wait(0.3); //just here to slow down the output for easier reading
cshao06 0:d24a38523990 20 * }
cshao06 0:d24a38523990 21 * }
cshao06 0:d24a38523990 22 * @endcode
cshao06 0:d24a38523990 23 */
cshao06 0:d24a38523990 24
cshao06 0:d24a38523990 25 class FSR
cshao06 0:d24a38523990 26 {
cshao06 0:d24a38523990 27 public:
cshao06 0:d24a38523990 28 /** Create an FSR object
cshao06 0:d24a38523990 29 *
cshao06 3:6fc368701789 30 * @param Pin AnalogIn pin number
cshao06 3:6fc368701789 31 * @param resistance resistance of the voltage divider resistor in k
cshao06 0:d24a38523990 32 */
cshao06 0:d24a38523990 33 FSR(PinName Pin, float resistance);
cshao06 0:d24a38523990 34
cshao06 0:d24a38523990 35 /** Read the raw data
cshao06 0:d24a38523990 36 *
cshao06 0:d24a38523990 37 * @return the raw float data ranging from 0 to 1
cshao06 0:d24a38523990 38 */
cshao06 0:d24a38523990 39 float readRaw();
cshao06 0:d24a38523990 40
cshao06 0:d24a38523990 41 /** Read the resistance of the FSR
cshao06 0:d24a38523990 42 *
cshao06 0:d24a38523990 43 * @return the resistance of the FSR
cshao06 0:d24a38523990 44 */
cshao06 0:d24a38523990 45 float readFSRResistance();
cshao06 0:d24a38523990 46
cshao06 0:d24a38523990 47 /** Read the weight in N. 0 anyway if the weight is less than 100g
cshao06 0:d24a38523990 48 *
cshao06 0:d24a38523990 49 * @return the weight ranging from 100g to 10000g
cshao06 0:d24a38523990 50 */
cshao06 0:d24a38523990 51 float readWeight();
cshao06 0:d24a38523990 52 protected:
cshao06 0:d24a38523990 53 AnalogIn _ain;
cshao06 0:d24a38523990 54 float _r;
cshao06 0:d24a38523990 55 };
cshao06 0:d24a38523990 56
cshao06 0:d24a38523990 57 #endif