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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
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Arduino compatibility example
This example shows that it is now possible to re-use arduino sketches in
Contiki. This example documents the necessary magic. Arduino specifies
two routines, setup and loop. Before setup is called, the
framework initializes hardware. In original Arduino, all this is done in
a main function (in C). For contiki we define a process that does the
same.
See the documentation file in apps/contiki-compat/README.md