¶ Use of Spk_30pin
There are two SPKs on the board, one is in the 30pin and the other is with a lock socket.
Here we introduce the use of the SPK in the 30pin.
Since the 30pin SPK does not have an amplifier, an external amplifier board is required.
¶ 1 Schematic location
¶ 2 Wiring connection
¶ 3 Demonstration video
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