Speaker - Cannot control length or volume
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 Hi, 
 Is the Speaker supposed to work yet, I've read a post 4 months old that states it's not working correctly.I tried the example and the beep and tone work but no volume control but when I add the code into mine the speaker just starts making a loud tone and doesn't stop ??? Anyone got it working in their project ? 
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 @gadjet OK got it to stop making a continuous beep by adding the M5.update(); in the loop. Volume still doesn't work though.