I have a 4xAA battery powering the 4 dc motors on a typical plastic chassis via a L293D motor shield. The car uses the ultrasonic sensor and code to avoid obstacles. The issue Im having is that when the UNO is plugged into the 5V from the usb cable and the 4xAA are powering the L293D shield, all wor…

L293D motor shield power sources

Topic		Replies	Views
Power considerations for motor shield (Total newbie) Motors, Mechanics, Power and CNC	6	1869	May 6, 2021
Power problem with L293D motor shield General Electronics	2	848	May 6, 2021
[beginner] how to choose the right power source Motors, Mechanics, Power and CNC	5	1581	May 6, 2021
Can't run DC motors with L293D shield with external power Motors, Mechanics, Power and CNC	15	6957	May 6, 2021
L239D motor shield power General Guidance	12	2391	May 5, 2021