Piezo buzzer on extruder controller board #55
Description
The extruder controller has two digital IO headers: D9 and D10. D9 is used for the pen plotter, but D10 is unused. D10 should be used for a piezo buzzer.
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The extruder controller has two digital IO headers: D9 and D10. D9 is used for the pen plotter, but D10 is unused. D10 should be used for a piezo buzzer.