osd-contiki/examples/osd/arduino-sketch/led_pwm.h
Ralf Schlatterbeck e65dabb119 Add Arduino compatibility layer
We can now directly compile arduino sketches (.pde) files.
Arduino compatible analogWrite works now.
But there is still a long way to go, serial I/O and timer stuff (delay,
millis etc) currently don't work (not tested but I don't expect this to
work).
It can be used in an arduino sketch or in a normal contiki program.
We get a PWM frequency of 490.2 Hz (a period of 2.040 ms), that's
Arduino compatible. If you need different frequencies see native timer
usage in examples/osd/pwm-example
In a contiki program you have to call arduino_pwm_timer_init to
initialize the timer before pwm works. The arduino sketch wrapper
already does this.
For running a sketch, see examples/osd/arduino-sketch
2014-06-26 11:00:01 +02:00

30 lines
542 B
C

/**
* \defgroup Arduino LED PWM example
*
* Resource definition for Arduino LED PWM module
*
* @{
*/
/**
* \file
* Resource definitions for the Arduino LED PWM module
*
* \author
* Ralf Schlatterbeck <rsc@tux.runtux.com>
*/
#ifndef led_pwm_h
#define led_pwm_h
#include "contiki.h"
#include "contiki-net.h"
#include "erbium.h"
#include "er-coap-13.h"
extern uint8_t pwm;
extern uint8_t period_100ms;
extern resource_t resource_led_pwm;
extern resource_t resource_led_period;
#endif // led_pwm_h
/** @} */