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₨400
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he PWM driver board uses the I2C method, so only four lines can be connected to the Arduino device: āClassicā Arduino pin mode: + 5v -> VCC GND -> GND Analog 4 -> SDA Analog 5 -> SCL Old Mega pin way: + 5v -> VCC GND -> GND Digital 20 -> SDA Digital 21 -> SCL
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