A common mistake beginners make is leaving the STBY pin floating. If this pin is not connected, the motor driver may not work at all or behave erratically. Always wire STBY to your microcontroller's VCC (5V or 3.3V) to ensure the driver stays "awake."
Critical Note: The Mx1616 requires proper heat sinking. At 1.6A continuous, the driver can reach 85°C within minutes. An active cooling fan or a glued-on aluminum heat sink is strongly recommended. Mx1616 Motor Driver Datasheet
Version 1.2 | Document Number: DS-MX1616-0124 A common mistake beginners make is leaving the