We can check R1 PIN definition in this thread, including CON1, CON2, CON3, J12 and J13.
J13 contains the default serial port UART0 (UART0-RX,UART0-TX). UATR0 is configured to be used for console input/output. Whilst this is useful if you want to login using the serial port. So it is the most common used PIN.
J12 also contains serial port. CON3 contains CAN bus, SPI bus, PWM, serial port and etc. It can be configured to be used for kinds of peripherals.
CON1 is a CSI camera connector.
CON2 is a DSI display connector.
Pictures and tables below show the specific layout and definition of PIN.
CSI Camera Connector Pin specification:
the CSI Camera Connector is a 40-pin FPC connector which can connect external camera module with proper signal pin mappings. The pin definitions of the CSI interface are shown as below.
PIN
PIN define
GPIO
​
CON1-P01
LINEINL
​
​
CON1-P02
LINEINR
​
​
CON1-P37
HPL
​
​
CON1-P36
HPR
​
​
CON1-P07
FMINL
​
​
CON1-P09
FMINR
​
​
CON1-P04
ADC_X1
​
​
CON1-P06
ADC_X2
​
​
CON1-P08
ADC_Y1
​
​
CON1-P10
ADC_Y2
​
​
CON1-P13
LRADC0
​
​
CON1-P15
LRADC1
​
​
CON1-P33
RESET#
​
​
CON1-P17
CSI0-D0
PE4
​
CON1-P19
CSI0-D1
PE5
​
CON1-P21
CSI0-D2
PE6
​
CON1-P23
CSI0-D3
PE7
​
CON1-P25
CSI0-D4
PE8
​
CON1-P27
CSI0-D5
PE9
​
LVDS Pin specification
LVDS (LCD display interface)
The LVDS Connector is a 40-pin FPC connector which can connect external LCD panel (LVDS) and touch screen (I2C) module as well. The pin definitions of this connector are shown as below.
CON2-P09
LCD0-D00
PD0
​
CON2-P11
LCD0-D01
PD1
​
CON2-P13
LCD0-D02
PD2
​
CON2-P15
LCD0-D03
PD3
​
CON2-P17
LCD0-D04
PD4
​
CON2-P19
LCD0-D05
PD5
​
CON2-P21
LCD0-D06
PD6
​
CON2-P23
LCD0-D07
PD7
​
CON2-P25
LCD0-D08
PD8
​
CON2-P27
LCD0-D09
PD9
​
CON2-P29
LCD0-D10
PD10
​
CON2-P31
LCD0-D11
PD11
​
CON2-P33
LCD0-D12
PD12
​
CON2-P35
LCD0-D13
PD13
​
CON2-P37
LCD0-D14
PD14
​
CON2-P39
LCD0-D15
PD15
​
CON2-P40
LCD0-D16
PD16
​
CON2-P38
LCD0-D17
PD17
​
CON2-P36
LCD0-D18
PD18
​
CON2-P34
LCD0-D19
PD19
​
BPI-R1 has a 26-pin GPIO header that matches that of the Model Raspberry Pi. Following is the Banana Pi GPIO Pinout: