Chapter 4
Hardware installation
23
The following diagram shows the switch connection with battery pack and L289N.
Caution
: Do not modify your programming code when USB cable plugged in Arduino UNO
development board and your computer with wires connecting to L289N Motor Drive board as a large
amount of current will drain from the USB cable which will burn out the computer USB port.
L289N
1b
1
1a
0
1
Battery Pack
GND
VMS