Diff: PCA9685.h

Revision:

0:aa965d6b1f8f

Child:

3:a3410f2f061d

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PCA9685.h	Tue Apr 05 21:20:15 2016 +0000
@@ -0,0 +1,31 @@
+#ifndef PCA9685_LIBRARY_H
+#define PCA9685_LIBRARY_H
+
+#include "mbed.h"
+#include "definitions.h"
+
+
+class PCA9685 {
+    
+    public:
+        PCA9685(uint8_t i2c_addr, I2C i2c_object, float frequency);
+        void init(void);
+        void set_pwm_output(int pwm_output, uint16_t count_on, uint16_t count_off);
+        void set_pwm_duty(int pwm_output, float duty_cycle);
+        void set_pwm_pw(int pwm_output, float pulse_width_us);
+        void update(void);
+        
+    private: 
+        void reset(void);
+        void write_8(uint8_t reg, uint8_t msg);
+        uint8_t read_8(uint8_t reg);
+        void set_prescale(uint8_t prescale);
+        int convert_pwm_value(float pulse_width_us, float period_us);
+    
+    private:
+        int i2c_addr;
+        float freq;
+        I2C i2c;
+};        
+
+#endif
\ No newline at end of file