Turn off the LED #1
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…nnecting. The PowerMate Bluetooth sends a connection parameter update request 5 seconds after connecting. Only after this has been done, can the led be turned off, if anything is written before this, turning off the led won't work.
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Discovered this doesn't work good enough yet, it still disconnects after 20 minutes or so, after which you have to wait 10 seconds before it works again. |
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The PowerMate Bluetooth leaves the LED on at low brightness unless it's turned off, also it will automatically disconnect after about 5 minutes.
To fix this, a delay after the connect is needed, to allow the PowerMate Bluetooth to send a Connection Parameter Update Request, after that the LED_VAL_HND (0x29) should be written to 0.
Writing LED_VAL_HND (0x29) before that does not work for some reason.