S3-915M
User manual
5
3. Mechanical properties
3.1 S3-915M Dimensions
3.2 Pin definition
No.
Name
Direction
Function
1
GND
Ground wire, connected to the power reference
ground
2
VCC
Power supply, range 2.5-3.7v (external ceramic filter
capacitor is recommended)
3
SETB
Low power wake-up pin
4
DIO1
Input/output
NC (reserved pin)
5
BUSY
Input/output
NC (reserved pin)
6
I2C_SDA
Input/output
NC (reserved pin)
7
I2C_SCL
Input/output
NC (reserved pin)
8
UART_CTS
Input/output
NC (reserved pin)
9
UART_RTS
Input/output
NC (reserved pin)
10
GND
Ground wire, connected to the power reference
