⚡ PART 5 — WHY CAN'T YOU CONNECT A DC MOTOR DIRECTLY TO ARDUINO?
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt Play1/3
There's no tags or description
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai | Chat |
|---|
No analytics yet
Send a link to your students to track their progress
4 Terms
Why should you NEVER connect a DC motor directly to an Arduino pin?
Because a motor requires much more current than an Arduino I/O pin should supply.
Your notes use approximately:
Arduino pin → maximum 40 mA
DC motor → approximately 400 mA
Therefore, the Arduino cannot safely power the motor directly.
What could happen if a motor is connected directly to an Arduino pin?
A: The excessive current could overload or damage the Arduino pin/microcontroller.
Motors can also create electrical effects that make direct connection particularly unsuitable.
What device should be used between an Arduino and a DC motor?
A motor driver, such as an L293D, which uses an H-bridge circuit.
m
m