From a9944f5a473d4797b16e1a2fdb2570eff5f04e68 Mon Sep 17 00:00:00 2001
From: mattmcw <matt@sixteenmillimeter.com>
Date: Tue, 30 Jan 2024 00:12:36 -0500
Subject: [PATCH] Caught the error that was making me think I broke my ESP32
 dev boards. The ledcWrite() duty cycle was not being set on the pwmChannel.
 This is intended for LEDS but I don't know if it matters that it's being used
 for a variable speed DC motor.

---
 ino/esp32_dc_motor_poc/esp32_dc_motor_poc.ino | 15 +++------------
 1 file changed, 3 insertions(+), 12 deletions(-)

diff --git a/ino/esp32_dc_motor_poc/esp32_dc_motor_poc.ino b/ino/esp32_dc_motor_poc/esp32_dc_motor_poc.ino
index 3279f70..89ecaf6 100644
--- a/ino/esp32_dc_motor_poc/esp32_dc_motor_poc.ino
+++ b/ino/esp32_dc_motor_poc/esp32_dc_motor_poc.ino
@@ -14,7 +14,7 @@ int enable1Pin = 14;
 const int freq = 30000;
 const int pwmChannel = 0;
 const int resolution = 8;
-int dutyCycle = 200;
+int dutyCycle = 250;
 
 void setup() {
   // sets the pins as outputs:
@@ -28,6 +28,8 @@ void setup() {
   // attach the channel to the GPIO to be controlled
   ledcAttachPin(enable1Pin, pwmChannel);
 
+  ledcWrite(pwmChannel, dutyCycle); 
+
   Serial.begin(115200);
 
   // testing
@@ -59,15 +61,4 @@ void loop() {
   digitalWrite(motor1Pin2, LOW);
   delay(1000);
 
-  // Move DC motor forward with increasing speed
-  digitalWrite(motor1Pin1, HIGH);
-  digitalWrite(motor1Pin2, LOW);
-  while (dutyCycle <= 255){
-    ledcWrite(pwmChannel, dutyCycle);   
-    Serial.print("Forward with duty cycle: ");
-    Serial.println(dutyCycle);
-    dutyCycle = dutyCycle + 5;
-    delay(500);
-  }
-  dutyCycle = 200;
 }