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microphone close to the audio source
1.7.6 User Button
The Smart210 1305 carrier board has 8 buttons. The TinySDK/ADK 1312B has four
user buttons connected directly to the CPU’s interrupt pins. They trigger low when
closed.
Button
K1
K2
K3
K4
Interrupt
EINT16
EINT17
EINT18
EINT19
GPIO
GPH2_0
GPH2_1
GPH2_2
GPH2_3
Notes:
1.
The Smart210 1305 carrier board’s CON14 has all these buttons’ pins
2.
The TinySDK/ADK 1312B’s CON13 has all these buttons’ pins.
Please refer to the schematic for more details