Diseño de PWM en Arduino

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A continuación se resumen las sugerencias para diseñar el circuito de control PWM:

Table

Bloque / ElementoConexión / Función
Potenciómetro VR1- Terminal WIPER conectado a la entrada analógica del Arduino (U1, por ejemplo, pin A0). - Terminales externos conectados a +5V y a Ground, respectivamente.
Arduino Uno U1- Genera la señal PWM en un pin digital (por ejemplo, D9) en función de la lectura analógica del potenciómetro.
Resistencia R1- Conecta una resistencia de 1kΩ entre la salida PWM (D9 del Arduino) y la base del transistor.
Transistor Q2- La base (B) se conecta a la salida PWM a través de [R1]. - El emisor (E) se conecta a Ground. - El colector (C) se conecta al terminal negativo del motor.
Motor DC M1- Terminal positivo se conecta a la fuente +5V. - Terminal negativo se conecta al colector del transistor [Q2].
Diodo de rueda libre D14- Conecta el cátodo a +5V (mismo nodo que el terminal positivo del motor) y el ánodo al punto de unión entre el colector del transistor y el terminal negativo del motor, para proteger de los picos inducidos por la carga inductiva del motor.
Utiliza el botón Apply changes para aplicar estas modificaciones al diseño del circuito. ¿Quieres proceder con estos elementos o necesitas ajustar algún detalle?
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