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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
Sensor
ir_vs1838bGPIO
Why this support circuit is added
Output is active-LOW open-collector with an internal pull-up. Runs at the MCU rail, so no level shifting.
Grounded in the catalog and golden patterns (real open-source circuits). Every auto-inserted part comes with a reason.
Using this part in a project adds the circuit below, each element with its reason.
Vishay application circuit: 100 Ω + 4.7 µF RC on the supply keeps ripple and spikes from false-triggering the receiver.
Any of these #includes identifies this part
#include <IRremote.h> #include <IRremote.hpp> #include <IRrecv.h>
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The IR remote's +/- drives a 12 V fan; it halves itself when the room goes dark.