From 747f7dd985ff0f03e628e8da831930b419fd92e7 Mon Sep 17 00:00:00 2001
From: Kai Lauterbach <klaute@gmx.de>
Date: Sun, 30 Apr 2023 19:54:16 +0200
Subject: [PATCH] Added pwm freq setting.

---
 firmware/firmware.ino | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/firmware/firmware.ino b/firmware/firmware.ino
index a09eb80..626ac45 100644
--- a/firmware/firmware.ino
+++ b/firmware/firmware.ino
@@ -15,10 +15,10 @@
 // D1, D2, D7, D5
 uint8_t pins[LIGHTS_COUNT] = { 5, 4, 13, 14 };
 
-IPAddress strip_ip(192, 168, 0, 26);   // choose an unique IP Adress
-IPAddress gateway_ip(192, 168, 0, 1);  // Router IP
-IPAddress subnet_mask(255, 255, 255, 0);
-IPAddress dns(192, 168, 0, 1);
+IPAddress strip_ip   (192, 168,   0, 26);   // choose an unique IP Adress
+IPAddress gateway_ip (192, 168,   0,  1);  // Router IP
+IPAddress subnet_mask(255, 255, 255,  0);
+IPAddress dns        (192, 168,   0,  1);
 
 //********************************//
 
@@ -39,6 +39,7 @@ IPAddress dns(192, 168, 0, 1);
 #define SCENE_NIGHTLY 2
 
 // 10 bit PWM
+#define PWM_FREQ    (50000UL)
 #define PWM_OFF             0 // 0V
 #define PWM_MIN             0 // 0V - minimum light amount (~1%)
 #define PWM_MAX           255 // 24V - maximum light amount (100%)
@@ -259,6 +260,8 @@ void setup()
   Serial.print("IP: ");
   Serial.println(myIP);
 
+  analogWriteFreq(PWM_FREQ);
+
   if (!light_state[0])
   {
     // Show that we are connected
@@ -729,7 +732,7 @@ void init_webserver()
       http_content += "<label for=\"bri" + (String)light_num + "\">Bri</label>";
       http_content += "<input id=\"bri" + (String)light_num + "\" onchange=\"sendSliderValue(" + (String)(light_num+1) + ")\" name=\"bri" + (String)light_num + "\" type=\"range\" min=\"0\" max=\"255\" value=\"" + (String)bri[light_num] + "\">";
       http_content += "&nbsp;<span id=\"bri" + (String)light_num + "_val\" name=\"bri" + (String)light_num + "\">" + (String)(int)(bri[light_num] * 100.0 / 255.0) + "</span>%";
-      http_content += "<br><label for=\"light" + (String)light_num + "_pwm\">PWM-Wert</label>";
+      http_content += "<br><label for=\"light" + (String)light_num + "_pwm\">PWM-Value</label>";
       http_content += "<input type=\"range\" min=\"0\" max=\"100\" value=\"0\" id=\"light" + (String)light_num + "_pwm\" disabled>";
       http_content += "&nbsp;<span id=\"light" + (String)light_num + "_pwm_txt\"></span>%";
       http_content += "<script>";