Data Sheet

BT5S Module Datasheet 3 MODULE INTERFACES
Pin
No. Symbol
I/O
Type Function
4 C1 I/O I2C clock cable pin, which can be used as a common I/O
pin and is connected to the PC1 pin on the internal IC
5 3V3 P Power supply pin
6 B4 I/O Common I/O pin, which can be used as a PWM output of
the LED drive and is connected to the PB4 pin on the
internal IC
7 GND P Power supply reference ground pin
0 SWS I/O Bluetooth chip programming pin, which is connected to
the SWS pin on the internal IC
00 C2 I/O Common I/O pin, which can be used as a PWM output of
the LED drive and is connected to the PC2 pin on the
internal IC
8 B7 I/O Serial RX pin, which can be used as a common I/O pin
and is connected to the PB7 pin on the internal IC
9 RST I Reset pin, which is connected to the RESETB pin on the
internal IC (The module is embedded with a pull-up
resistor.)
10 3V3 P Power supply pin
11 B1 I/O Serial TX pin, which can be used as a common I/O pin
and is connected to the PB1 pin on the internal IC
12 GND P Power supply reference ground pin
Note: P indicates a power supply pin, and I/O indicates an input/output pin.
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