Joseph Bradshaw / ServoIn

Class Library for reading hobby servos and detecting invalid or disconnected channels

Dependents:   MadPulseCntrl Emaxx_Navigation Emaxx_Navigation_Dynamic_HIL Madpulse_Speed_Control_temp ... more

ServoIn Class Library

This class library uses external interrupts with timer functions to read servos pulses on mbed input pins.

ServoIn Library usage example

#include "mbed.h"
#include "ServoIn.h"

DigitalOut led1(LED1);
ServoIn servoIn1(p15);
ServoIn servoIn2(p14);
Serial pc(USBTX, USBRX); // tx, rx

int main() {    
    pc.baud(921600);            //Fast baud rate
        
    while(1) {
        led1 = 1;
        wait(0.05);
        led1 = 0;
        wait(0.05);
        
        pc.printf("servo pulse: CH1=%5dus  CH2=%5dus\r\n", servoIn1.read(), servoIn2.read());        
    }
}

Diff: ServoIn.h

Revision:
3:19c8eaf905e9
Parent:
2:07273d6016e9
Child:
4:379f9ab5cb4b
--- a/ServoIn.h	Sat May 09 15:25:03 2015 +0000
+++ b/ServoIn.h	Thu May 21 18:40:06 2015 +0000
@@ -40,6 +40,12 @@
     ServoIn(PinName pin);
             
     int servoPulse;
+    int servoPulseMax;
+    int servoPulseMin;
+    float servoPulseOffset;
+    float servoPulseScale;
+    
+    float readCalPulse(void);
     int read(void);
     void PulseRead(void);
     void timeoutTest(void);
@@ -55,4 +61,4 @@
     bool _t_state;
 };
 
-#endif
\ No newline at end of file
+#endif