From eb68b98cf517f0d1ed53a6567a4f3d2df4b1a5dd Mon Sep 17 00:00:00 2001
From: Ralf Schlatterbeck <rsc@runtux.com>
Date: Fri, 8 Dec 2017 20:34:51 +0100
Subject: [PATCH] Also output smooth led on pin 3

---
 examples/osd/arduino-led/sketch.pde | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/examples/osd/arduino-led/sketch.pde b/examples/osd/arduino-led/sketch.pde
index e3281faf9..6c2b810d4 100644
--- a/examples/osd/arduino-led/sketch.pde
+++ b/examples/osd/arduino-led/sketch.pde
@@ -16,6 +16,7 @@ extern "C" {
 #include "led_setting.h"
 #define TIMER 3
 #define PIN_PWM_C 4
+#define PIN_PWM_B 3
 
 static uint16_t pwm_max = 0;
 }
@@ -25,8 +26,11 @@ void setup (void)
     hwtimer_ini (3, HWT_WGM_PWM_PHASE_8_BIT, HWT_CLOCK_PRESCALER_8, 0);
     //hwtimer_pwm_ini (TIMER, 1000, HWT_PWM_FAST, 0);
     hwtimer_pwm_enable (TIMER, HWT_CHANNEL_C);
+    hwtimer_pwm_enable (TIMER, HWT_CHANNEL_B);
     hwtimer_set_pwm (TIMER, HWT_CHANNEL_C, 0);
+    hwtimer_set_pwm (TIMER, HWT_CHANNEL_B, 255);
     pinMode (PIN_PWM_C, OUTPUT);
+    pinMode (PIN_PWM_B, OUTPUT);
     pwm_max = hwtimer_pwm_max_ticks (TIMER);
     printf ("pwm_max: %u\n", pwm_max);
 }
@@ -36,6 +40,7 @@ void loop (void)
     static int direction = 1;
     static unsigned const char *led_ptr = led_setting;
     hwtimer_set_pwm (TIMER, HWT_CHANNEL_C, *led_ptr);
+    hwtimer_set_pwm (TIMER, HWT_CHANNEL_B, 255 - *led_ptr);
     //printf ("p: %u\n", *led_ptr);
     if (led_ptr >= led_setting + sizeof (led_setting) - 1 && direction > 0) {
         direction = -1;