User's Manual

Module Pin Definition
Bluetooth Module
Pin # Pin Name Direction Voltage Description
1 GND Power GND Ground
2 DIO_0 Digital I/O 1.8V to 3.8V GPIO, ULP Sensor Interface
3 DIO_1 Digital I/O 1.8V to 3.8V GPIO, ULP Sensor Interface
4 DIO_2 Digital I/O 1.8V to 3.8V GPIO, ULP Sensor Interface
5 DIO_3 Digital I/O 1.8V to 3.8V GPIO, ULP Sensor Interface
6 DIO_4 Digital I/O 1.8V to 3.8V GPIO, ULP Sensor Interface
7 DIO_5 Digital I/O 1.8V to 3.8V GPIO, ULP Sensor Interface, LED driving capability
8 DIO_6 Digital I/O 1.8V to 3.8V GPIO, ULP Sensor Interface, LED driving capability
9 DIO_7 Digital I/O 1.8V to 3.8V GPIO, ULP Sensor Interface, LED driving capability
10 VDDS2 Power 1.8V to 3.8V 1.8V – 3.8V DIO supply
11 DIO_8 Digital I/O 1.8V to 3.8V GPIO
12 DIO_9 Digital I/O 1.8V to 3.8V GPIO
13 DIO_10 Digital I/O 1.8V to 3.8V GPIO, LED driving capability
14 DIO_11 Digital I/O 1.8V to 3.8V GPIO, LED driving capability
15 DIO_12 Digital I/O 1.8V to 3.8V GPIO
16 DIO_13 Digital I/O 1.8V to 3.8V GPIO
17 DIO_14 Digital I/O 1.8V to 3.8V GPIO
18 DIO_15 Digital I/O 1.8V to 3.8V GPIO
19 VDDS3 Power 1.8V to 3.8V 1.8V – 3.8V DIO supply
20 JTAG_TMSC Digital I/O 1.8V to 3.8V JTAG_TMSC
21 JTAG_TCKC Digital I/O 1.8V to 3.8V JTAG_TCKC
22 JTAG_TDO Digital I/O 1.8V to 3.8V GPIO, JTAG_TDO
23 JTAG_TDI Digital I/O 1.8V to 3.8V GPIO, JTAG_TDI
24 GND Power GND Ground
25 DIO_18 Digital I/O 1.8V to 3.8V GPIO
26 DIO_19 Digital I/O 1.8V to 3.8V GPIO
27 DIO_20 Digital I/O 1.8V to 3.8V GPIO
28 DIO_21 Digital I/O 1.8V to 3.8V GPIO
29 DIO_22 Digital I/O 1.8V to 3.8V GPIO
30 VDD Power 1.8V to 3.8V 1.8V – 3.8V main chip supply
31 nRESET I 1.8V to 3.8V Reset, active-low. No internal pull-up
32 DIO_23 Digital/Analog I/O 1.8V to 3.8V GPIO, ULP Sensor Interface, Analog