FSR
Dependents: FSR_hello_world FINAL_PROJECT Pousse_seringue_Ulg 0__Pousse_seringue ... more
Diff: FSR.h
- Revision:
- 0:d24a38523990
- Child:
- 3:6fc368701789
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/FSR.h Wed Oct 21 21:14:06 2015 +0000 @@ -0,0 +1,57 @@ +#ifndef FSR_H +#define FSR_H + +#include "mbed.h" + +/** Force sensitive resistor class using an AnalogIn pin + * + * Example: + * @code + * #include "mbed.h" + * #include "FSR.h" + * FSR fsr(p17, 10); // a 10k resistor is used + * int main(){ + * while (1) + * { + * printf("The raw data is %f\n", fsr.readRaw()); + * printf("The resistance of the FSR is %f\n", fsr.readFSRResistance()); + * printf("The weight on the FSR is %f\n\n", fsr.readWeight()); + * wait(0.3); //just here to slow down the output for easier reading + * } + * } + * @endcode + */ + +class FSR +{ +public: + /** Create an FSR object + * + * @param AnalogIn pin number + * @param resistance of the voltage divider resistor in k + */ + FSR(PinName Pin, float resistance); + + /** Read the raw data + * + * @return the raw float data ranging from 0 to 1 + */ + float readRaw(); + + /** Read the resistance of the FSR + * + * @return the resistance of the FSR + */ + float readFSRResistance(); + + /** Read the weight in N. 0 anyway if the weight is less than 100g + * + * @return the weight ranging from 100g to 10000g + */ + float readWeight(); +protected: + AnalogIn _ain; + float _r; +}; + +#endif \ No newline at end of file