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elcojacobs / ShiftPWM

Arduino Library for software PWM with shift registers
MIT License
176 stars 86 forks source link

Software Serial #6

Closed simetin closed 9 years ago

simetin commented 9 years ago

Hi, there seems to have incompatibility between Software serial communcation and ShiftPWM. I can't receive anything from the serial software if this line (and of course all the rest needed for ShiftPWM) is there: ShiftPWM.Start(pwmFrequency,maxBrightness);. Any solution ? I really need both of them.

Thanks William

PaulStoffregen commented 9 years ago

Do you mean the SoftwareSerial library?

There's basically no hope of getting that to work reliably with any interrupt-based library like ShiftPWM, which spends more than a fraction of 1 bit time in its interrupt.

simetin commented 9 years ago

Yes... Do you know an alternative solution I need to pass from a Spark (arduino compatible) to an arduino uno 30 variables...

PaulStoffregen commented 9 years ago

Replace the Uno with a board that has an available hardware serial port.

Or kludge a way to get data into the Uno's serial RX pin.

simetin commented 9 years ago

Ok. Thanks !

simetin commented 9 years ago

Do you know if there is also a incompatibility with a press button, I can't get a button working if this line is not commented: ShiftPWM.Start(pwmFrequency,maxBrightness);

Thanks William