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1—Light sensor (U506) 12—Main antenna (CN307)
2—Power source selector (CN801) 13—GPS Antenna (CN306)
3—GPIO expander (U503) 14—Diversity antenna (CN304)
4—IoT connector (CN601) 15—Integrated Wi-Fi/BT/GPS antenna (ANT301)
5—Gas/Pressure/Humidity/Temperature sensor (U507) 16—Wi-Fi/BT antenna (CN308)
6—Power switch (SW1002) 17—Wi-Fi/BT module (U300)
7—NFC antenna (ANT700) 18—Generic button (SW500)
8—NFC transponder (U700) 19—Tricolor LED User-controlled (D500)
9—Battery connector (CN1000) 20—Digital microphone (U704)
10—uSIM/uSD connector (CN602) 21—Green LED User-defined (D402)
11—Multi-function switch (SW403) 22—Tricolor LED Power/Network/Cloud (D401)
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