From d09a8e33644c0e92259a39d21741404f96e52ad1 Mon Sep 17 00:00:00 2001
From: Lucca Pirovano <luccapirovano@gmx.com>
Date: Wed, 3 Dec 2025 13:40:42 -0500
Subject: [PATCH] made pin 10 control a servo instead of the fan, still need to
 update the webpage to reflect that, and the stop makes it full and the full
 makes it stop atm

---
 ...dynamic_pythonkeys_copy_20251115184748.ino | 74 +++++++++++--------
 1 file changed, 45 insertions(+), 29 deletions(-)

diff --git a/speed_fan_controller_dynamic_pythonkeys_copy_20251115184748/speed_fan_controller_dynamic_pythonkeys_copy_20251115184748.ino b/speed_fan_controller_dynamic_pythonkeys_copy_20251115184748/speed_fan_controller_dynamic_pythonkeys_copy_20251115184748.ino
index 224a149..c7f5bea 100644
--- a/speed_fan_controller_dynamic_pythonkeys_copy_20251115184748/speed_fan_controller_dynamic_pythonkeys_copy_20251115184748.ino
+++ b/speed_fan_controller_dynamic_pythonkeys_copy_20251115184748/speed_fan_controller_dynamic_pythonkeys_copy_20251115184748.ino
@@ -1,48 +1,64 @@
-// Dual Fan control via Serial – works with the Python Flask UI
-// Pin 11 = Fan A (PWM)   Pin 10 = Fan B (PWM)
-// Use transistor/MOSFET/driver for high-current fans!
-
-const int FAN_A_PIN = 11;
-const int FAN_B_PIN = 10;
+// Dual control: Pin 11 = PWM fan, Pin 10 = TT motor (via IRF520 module)
+// Send via Serial: a0–a9, af, as  → fan |  b0–b9, bf, bs  → TT motor
+const int FAN_PIN   = 11;   // Regular PWM fan (can be directly on pin or via transistor)
+const int MOTOR_PIN = 10;   // TT motor → IRF520 SIG terminal
 
 void setup() {
   Serial.begin(115200);
-  pinMode(FAN_A_PIN, OUTPUT);
-  pinMode(FAN_B_PIN, OUTPUT);
-  analogWrite(FAN_A_PIN, 0);
-  analogWrite(FAN_B_PIN, 0);
-  Serial.println("Dual fan controller ready.");
-  Serial.println("Format: <fan><cmd>  (a/b)(0-9fs)");
+  pinMode(FAN_PIN,   OUTPUT);
+  pinMode(MOTOR_PIN, OUTPUT);
+
+  // Start both stopped
+  analogWrite(FAN_PIN,   0);
+  analogWrite(MOTOR_PIN, 0);
+
+  Serial.println("Dual controller ready");
+  Serial.println("a0-a9/af/as = Fan | b0-b9/bf/bs = TT Motor");
 }
 
 void loop() {
-  if (Serial.available() < 2) return;   // need fan + cmd
+  if (Serial.available() < 2) return;
 
-  char fan = Serial.read();
-  char cmd = Serial.read();
+  char device = Serial.read();   // 'a'/'A' = fan, 'b'/'B' = motor
+  char cmd    = Serial.read();
 
-  // ----- validate fan -----
-  const int *pin;
-  if (fan == 'a' || fan == 'A') pin = &FAN_A_PIN;
-  else if (fan == 'b' || fan == 'B') pin = &FAN_B_PIN;
-  else { Serial.println("?"); return; }
+  // Select which pin we're controlling
+  int pin;
+  char name;
+  if (device == 'a' || device == 'A') {
+    pin = FAN_PIN;
+    name = 'A';
+  }
+  else if (device == 'b' || device == 'B') {
+    pin = MOTOR_PIN;
+    name = 'B';
+  }
+  else {
+    Serial.println("?");
+    return;
+  }
 
-  // ----- compute speed -----
+  // Parse command
   int speed = 0;
   cmd = tolower(cmd);
+
   if (cmd >= '0' && cmd <= '9') {
-    speed = map(cmd - '0', 0, 9, 0, 255);   // 0-9 → 0-255
+    speed = map(cmd - '0', 0, 9, 70, 255);   // ← IMPORTANT for TT motor!
+    // 70 minimum → motor actually starts moving (adjust 60–90 if needed)
+  }
+  else if (cmd == 'f') speed = 255;   // full
+  else if (cmd == 's') speed = 0;     // stop
+  else {
+    Serial.println("?");
+    return;
   }
-  else if (cmd == 'f') speed = 255;
-  else if (cmd == 's') speed = 0;
-  else { Serial.println("?"); return; }
 
-  // ----- apply -----
-  analogWrite(*pin, speed);
+  // Apply PWM
+  analogWrite(pin, speed);
 
-  // ----- feedback (percent + which fan) -----
+  // Feedback
   int percent = map(speed, 0, 255, 0, 100);
-  Serial.print((fan == 'a' || fan == 'A') ? "A" : "B");
+  Serial.print(name);
   Serial.print(percent);
   Serial.println("%");
 }
\ No newline at end of file