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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

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Lucca Pirovano
2025-12-03 13:40:42 -05:00
parent 9646403938
commit d09a8e3364
1 changed files with 45 additions and 29 deletions
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speed_fan_controller_dynamic_pythonkeys_copy_20251115184748/speed_fan_controller_dynamic_pythonkeys_copy_20251115184748.ino
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@@ -1,48 +1,64 @@
// Dual Fan control via Serial – works with the Python Flask UI // Dual control: Pin 11 = PWM fan, Pin 10 = TT motor (via IRF520 module)
// Pin 11 = Fan A (PWM) Pin 10 = Fan B (PWM) // Send via Serial: a0–a9, af, as → fan | b0–b9, bf, bs → TT motor
// Use transistor/MOSFET/driver for high-current fans! 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
const int FAN_A_PIN = 11;
const int FAN_B_PIN = 10;
void setup() { void setup() {
Serial.begin(115200); Serial.begin(115200);
pinMode(FAN_A_PIN, OUTPUT); pinMode(FAN_PIN, OUTPUT);
pinMode(FAN_B_PIN, OUTPUT); pinMode(MOTOR_PIN, OUTPUT);
analogWrite(FAN_A_PIN, 0);
analogWrite(FAN_B_PIN, 0); // Start both stopped
Serial.println("Dual fan controller ready."); analogWrite(FAN_PIN, 0);
Serial.println("Format: <fan><cmd> (a/b)(0-9fs)"); analogWrite(MOTOR_PIN, 0);
Serial.println("Dual controller ready");
Serial.println("a0-a9/af/as = Fan | b0-b9/bf/bs = TT Motor");
} }
void loop() { void loop() {
if (Serial.available() < 2) return; // need fan + cmd if (Serial.available() < 2) return;
char fan = Serial.read(); char device = Serial.read(); // 'a'/'A' = fan, 'b'/'B' = motor
char cmd = Serial.read(); char cmd = Serial.read();
// ----- validate fan ----- // Select which pin we're controlling
const int *pin; int pin;
if (fan == 'a' || fan == 'A') pin = &FAN_A_PIN; char name;
else if (fan == 'b' || fan == 'B') pin = &FAN_B_PIN; if (device == 'a' || device == 'A') {
else { Serial.println("?"); return; } 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; int speed = 0;
cmd = tolower(cmd); cmd = tolower(cmd);
if (cmd >= '0' && cmd <= '9') { 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 ----- // Apply PWM
analogWrite(*pin, speed); analogWrite(pin, speed);
// ----- feedback (percent + which fan) ----- // Feedback
int percent = map(speed, 0, 255, 0, 100); int percent = map(speed, 0, 255, 0, 100);
Serial.print((fan == 'a' || fan == 'A') ? "A" : "B"); Serial.print(name);
Serial.print(percent); Serial.print(percent);
Serial.println("%"); Serial.println("%");
} }