Keyestudio Smart Little Turtle Robot V3 Manual page 132

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(6) Test Code：
/*
keyestudio smart turtle robot
lesson 8.1
motor driver shield
http://www.keyestudio.com
*/
#define ML_Ctrl 2
#define ML_PWM 9
#define MR_Ctrl 4
#define MR_PWM 5
//define the direction control pin of A motor
//define the PWM control pin of A motor
//define the direction control pin of B motor
//define the PWM control pin of B motor
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