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Analog output not getting 0V

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Filip Goris

Situation :  Mean Well PWM-120-24 led driver (supports 0-10v dimming) connected to M-Duino 42+ analog output A0.5 and GND. Switch set to A0.5.

Problem : analogWrite(A0_5, 0) gives 0.6v instead of 0v. Decoupling the driver results in the correct 0v on the A0.5 pin. 

Question : Why 0.6V when the driver is connected?


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Andrei Postolache
Best Answer

Hello Filip,

Maybe is problem of the drive because our devices are well tested and work corectly. To get more information about the 42+ analog have a look here.


Thank you.

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