From dfce7a280acf4371f6627404e0adbf57f991ec62 Mon Sep 17 00:00:00 2001
From: Adrian Scillato <35405447+ascillato@users.noreply.github.com>
Date: Sun, 7 Oct 2018 14:24:52 -0300
Subject: [PATCH] Add PWM Freq Limits Config at Compile time

PWM_MAX and PWM_MIN are added with explanation comments in order to let a user, who wants to use a Servo, to config these values. Not added at runtime in order to avoid issues with dimmers.
---
 sonoff/sonoff.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sonoff/sonoff.h b/sonoff/sonoff.h
index f891e387a..9a84fabd6 100644
--- a/sonoff/sonoff.h
+++ b/sonoff/sonoff.h
@@ -80,6 +80,10 @@ typedef unsigned long power_t;              // Power (Relay) type
 //#define PWM_FREQ               1000         // 100..1000 Hz led refresh
 //#define PWM_FREQ               910          // 100..1000 Hz led refresh (iTead value)
 #define PWM_FREQ               880          // 100..1000 Hz led refresh (BN-SZ01 value)
+#define PWM_MAX                4000         // [PWM_MAX] Maximum frequency - Default: 4000
+#define PWM_MIN                100          // [PWM_MIN] Minimum frequency - Default: 100
+                                            //    For Dimmers use double of your mains AC frequecy (100 for 50Hz and 120 for 60Hz)
+                                            //    For Controlling Servos use 50 and also set PWM_FREQ as 50 (DO NOT USE THESE VALUES FOR DIMMERS)
 
 #define DEFAULT_POWER_DELTA    80           // Power change percentage
 #define MAX_POWER_HOLD         10           // Time in SECONDS to allow max agreed power