Compilation Errors:
Missing libraries or incorrect library installation.
Syntax errors in the code (e.g., missing semicolons, mismatched brackets).
Incorrect Port Selection:
Not selecting the correct COM port in the Arduino IDE.
Wrong Board Selected:
Choosing the wrong board type in the Arduino IDE (e.g., selecting Arduino Uno while using an Arduino Nano).
Power Issues:
Insufficient power supply to the Arduino or connected components.
Upload Errors:
Serial port already in use by another application.
Faulty or incompatible USB cable.
Connection Errors:
Incorrect wiring of sensors, modules, or components.
Loose connections or short circuits.
Memory Overflow:
Using too much memory for variables, leading to crashes or erratic behavior.
Baud Rate Mismatch:
Serial monitor baud rate not matching the code’s Serial.begin() value.
Faulty Components:
Defective sensors, modules, or other peripherals.
Infinite Loops or Freezing:
Code logic causing the program to get stuck in an endless loop.
Missing Bootloader:
If the Arduino bootloader is erased or corrupted, uploads won’t work.
Clock Frequency Mismatch:
Using external modules with a clock speed incompatible with the Arduino.
Robu - India's Innovative Electronics Community
Uniting Electronics Enthusiasts!