New production Model F Keyboard F77. DIY buzzer hookup.
Buzzer is hooked up with an Arduino to the xwhatsit controller. Frequency is set at 550Hz.
For 2kHz version [ Ссылка ]
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New production Model F Keyboard F77. DIY buzzer hookup.
Buzzer is hooked up with an Arduino to the xwhatsit controller. Frequency is set at 550Hz.
For 2kHz version [ Ссылка ]