Update

* Fixes wr_duty() function
* Add new servo example
* Update readme

Author: Dlloydev

README.md

@@ -16,21 +16,22 @@ Also included are non blocking Tone and Note functions that include *duration* a
 
 **Simulation Examples:**
 
+-  [16 PWM Fade](https://wokwi.com/projects/349232255258853970)
+-  [14 PWM Fade 2 Servo](https://wokwi.com/projects/349978851105833554)
+-  [Servo Sweep](https://wokwi.com/projects/350037178957431378)
 -  [Servo_Sweep_Inverted](https://wokwi.com/projects/351967394028061269)
--  [ESP32 Note Explorer ♩ ♪ ♫ ♬](https://wokwi.com/projects/351231798778266200) 
--  [playingNotes](https://wokwi.com/projects/351175246893548120)
--  [playingTones](https://wokwi.com/projects/352178590336932865)
--  [ESP32_ServoSweep_NonBlockingTone_Fade](https://wokwi.com/projects/350973592395055698)
--  [16 pwm fade](https://wokwi.com/projects/349232255258853970)
--  [14 pwm fade 2 servo](https://wokwi.com/projects/349978851105833554)
+-  [Dual Servo Sweep with Independent Speed Control](https://wokwi.com/projects/351978833396630095)
 -  [Servo Knob](https://wokwi.com/projects/350033311963284051)
--  [Servo Sweep](https://wokwi.com/projects/350037178957431378)
--  [3 phase 40kHz](https://wokwi.com/projects/349336125753524820)
--  [2 sync 300kHz](https://wokwi.com/projects/349322326995632722)
--  [8 sync 20kHz](https://wokwi.com/projects/349319723103552084)
--  [ESP32_3phase_10kHz.ino](https://wokwi.com/projects/334722465700774482)
--  [ESP32_S2_3phase_10kHz.ino](https://wokwi.com/projects/334765722024542804)
--  [ESP32_C3_3phase_10kHz.ino](https://wokwi.com/projects/334856585002091092)
+-  [Note Explorer ♩ ♪ ♫ ♬](https://wokwi.com/projects/351231798778266200) 
+-  [Playing Notes](https://wokwi.com/projects/351175246893548120)
+-  [Playing Tones](https://wokwi.com/projects/352178590336932865)
+-  [Servo Sweep with Non Blocking Tone and Fade](https://wokwi.com/projects/350973592395055698)
+-  [2 Sync 300kHz](https://wokwi.com/projects/349322326995632722)
+-  [8 Sync 20kHz](https://wokwi.com/projects/349319723103552084)
+-  [ESP32_3-Phase 40kHz](https://wokwi.com/projects/349336125753524820)
+-  [ESP32_3-Phase_10kHz](https://wokwi.com/projects/334722465700774482)
+-  [ESP32_S2_3-Phase_10kHz](https://wokwi.com/projects/334765722024542804)
+-  [ESP32_C3_3-Phase_10kHz](https://wokwi.com/projects/334856585002091092)
 
 | Board    | PWM Pins                          | PWM, Duty and Phase Channels | Frequency and Resolution Channels |
 | -------- | --------------------------------- | ---------------------------- | --------------------------------- |

examples/Dual_Servo_Sweep_Speed/Dual_Servo_Sweep_Speed.ino

@@ -0,0 +1,57 @@
+/*
+  Controls 2 servo positions and speed from 0-180 deg and back
+  https://wokwi.com/projects/351978833396630095
+  by dlloydev, December 2022.
+*/
+
+#include <pwmWrite.h>
+
+Pwm pwm = Pwm();
+
+const int speedPin1 = 32, speedPin2 = 12;
+const int servoPin1 = 14, servoPin2 = 13;
+float speed1, speed2, pos1, pos2;
+bool dir1, dir2;
+
+void setup() {
+}
+
+void loop() {
+  speed1 = (analogRead(speedPin1)) / 4095.0;  // 0-100% speed
+  speed2 = (analogRead(speedPin2)) / 2047.0;  // 0-200% speed
+
+  pwm.writeServo(servoPin1, pos1);
+  delay(5); // for simulator
+  pwm.writeServo(servoPin2, pos2);
+  delay(5); // for simulator
+
+  if (pos1 < 0) pos1 = 0;
+  if (pos2 < 0) pos2 = 0;
+
+  if (dir1) {
+    if (pos1 <= 180.0) {
+      pos1 += speed1;
+    } else {
+      dir1 = false;
+    }
+  } else {
+    if (pos1 >= 0.5) {
+      pos1 -= speed1;
+    } else {
+      dir1 = true;
+    }
+  }
+  if (dir2) {
+    if (pos2 <= 180.0) {
+      pos2 += speed2;
+    } else {
+      dir2 = false;
+    }
+  } else {
+    if (pos2 >= 0.5) {
+      pos2 -= speed2;
+    } else {
+      dir2 = true;
+    }
+  }
+} // loop speed determines the maximum servo speed limit

library.json

@@ -3,7 +3,7 @@
     "keywords": "pwm, servo, tone, esp32, analogWrite, esp32-s2, esp32-s3, esp32-c3, ledc",
     "description": "ESP32 PWM, SERVO, TONE and NOTE. Smart GPIO pin management and advanced control features.",
     "license": "MIT",
-    "version": "4.2.3",
+    "version": "4.2.4",
     "frameworks": "arduino",
     "platforms": "espressif32",
     "repository": {

library.properties

@@ -1,5 +1,5 @@
 name=ESP32 ESP32S2 AnalogWrite
-version=4.2.3
+version=4.2.4
 author=David Lloyd
 maintainer=David Lloyd <[email protected]>
 sentence=ESP32 PWM, SERVO, TONE and NOTE.

src/pwmWrite.cpp

@@ -1,5 +1,5 @@
 /*******************************************************************
-   ESP32 PWM, SERVO and TONE Library, Version 4.2.3
+   ESP32 PWM, SERVO and TONE Library, Version 4.2.4
    by dlloydev https://github.com/Dlloydev/ESP32-ESP32S2-AnalogWrite
    This Library is licensed under the MIT License
  *******************************************************************/
@@ -351,6 +351,7 @@ void Pwm::wr_ch_pair(uint8_t ch, uint32_t frequency, uint8_t bits) {
 
 void Pwm::wr_duty(uint8_t ch, uint32_t duty) {
   if (config[ch].duty != duty) {
+    ledcSetup(ch, config[ch].frequency, config[ch].resolution);
     ledcWrite(ch, duty);
     config[ch].duty = duty;
   }