🔒
A remote changes fan speed
The IR remote's +/- drives a 12 V fan; it halves itself when the room goes dark.
ir_vs1838bldrload_mosfet
Actuator
High-current load (12 V LED strip / DC motor / heater) via N-MOSFET low-side switch
load_mosfetPWMChecklist
Why this support circuit is added
The load draws straight from VIN (7–12 V); the MCU only toggles the gate. PWM-dimmable. Above 2 A swap in the IRLZ44N (TO-220).
Grounded in the catalog and golden patterns (real open-source circuits). Every auto-inserted part comes with a reason.
Support circuit added automatically2
Using this part in a project adds the circuit below, each element with its reason.
MOSFET low-side switch
DRAIN → MCU
Amps of load current can't come from an MCU pin: a logic-level N-MOSFET switches the low side, 100 Ω limits gate inrush and 10 kΩ keeps the gate defined while the MCU resets.
Flyback diode
VIN · DRAIN
Clamps the back-EMF of inductive loads (motor, solenoid) on switch-off (Arduino transistor motor-control circuit); harmless for LED strips.
InterfacePWM
- Catalog id
- load_mosfet
- Category
- Actuator
- Protocol
- PWM
- Logic level
- Unrestricted (uses the board rail)
Firmware detection0
No library reveals it — add it from the module checklist in your project.
Checklist partChecklist
Code alone can't reveal this part, so it lives on the module checklist. When added, it is bound to a free sketch pin with a matching direction.
Examples using this part
Run them in the browser, no login needed.