Buzzer - tnl3pdx/SleepBud GitHub Wiki

Given the B07NK8MGL9 active buzzer after testing:

Date 11/14/24 - Ameer

• The buzzer needs to be grounded in order to immediately stop the noise or else there will be approximately 10-30 sec of residual noise from the 3.3 gate voltage provided by the GPIO after the 5v is disconnected.
• We will now be supplying 5v rather than 12v due to the sufficient sound produced at 5v and making the traces on the PCB more reasonable (not long traces across the board).