Ah, If I remember correctly, you Adeept AI Mars Rover is using the L298N DC motor driver. To move forward, backward, stop, you just use GPIO pin in output mode to control the L298N. But if you wish to change speed, you need to use GPIO pin in PWM mode. In short, output mode for newbies, PWM mode for ninjas. The first reference below is for newbies, rest for ninjas: (1) aliexpress.com/i/32676329352.html (2) raspberrypi.stackexchange.com/questions/104365/…, / to continue, … – tlfong01 23 hours ago   


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