Keyestudio Smart Little Turtle Robot V3, Manual, Page: 130 / 230

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(2) Specification
Circuit Diagram for L298P Board
1) Logic part input voltage: DC5V
2) Driving part input voltage: DC 7-12V
3) Logic part working current: <36mA
4) Driving part working current: <2A
5) Maximum power dissipation: 25W (T=75℃)
6) Working temperature: -25℃～＋130℃
7) Control signal input level: high level 2.3V<Vin<5V, low level
-0.3V<Vin<1.5V
(3) Drive Robot to Move
Through the above diagram, the direction pin of B motor is D4, and speed pin is
D5; D2 is the direction pin of A motor, D9 is speed pin.
PWM decides 2 motors to rotate so as to drive robot car. The PWM value is in the
range of 0-255, the larger the number, the faster the motor rotates.