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Banana Pi – A Highend Single-Board Computer

Banana Pi

What is Banana Pi?

http://www.bananapi.org/p/product.html

 Banana Pi is a single-board computer.  Banana Pi targets to be a cheap, small and flexible enough computer for daily life.  Built with ARM Cortex-A7 Dual-core CPU and Mali400MP2 GPU, and open source software, Banana Pi can serve as a platform to make lots of applications for different purposes.

Banana Pi Specification

SoC Allwinner A20*(ARM Cortex-A7 dual-core, 1GHz, Mali400MP2 GPU)
System Memory 1GB DDR3 DRAM
Storage SD card slot,Extensible with SATA connection (2.5″ SATA HDD with 5V)
Video output HDMI,Composite,Extensible with on-board LVDS connector
Audio I/O HDMI,3.5mm stereo jack output,On-board microphone input
Connectivity Gigabit Ethernet
USB 2* USB 2.0 ports,1* OTG micro USB port,1* micro USB for power supply**
Expansion Extensible 26-pin headers,Camera connector,Display connector for LVDS and touch screen
Misc. 3* on-board buttons, (Power, Reset, Uboot key),IR receiver
Dimensions 92mm X 60 mm
Weight 48 g

* Allwinner http://www.allwinnertech.com/en/

** Due to limited power amperage from computer USB port , we suggest using 5V 2A external power adapter.

 

Banana Pi Input/Output (Front side)

Banana Pi Input/Output (Back side)

Pin Definitions of Extensible connector

Banana Pi has multiple extensible connectors for users to develop their own amazing projects and applications.   Most of common extension accessories Including LCD panel, touch screen, camera module, UART console and GPIO control pins are accessible from Banana Pi on-board connectors and headers.

Banana Pi extensible 26-pins GPIO headers

Banana Pi has 26-pins GPIO headers to extend the functions such as I2C, SPI, 5V and 3.3V output…etc.   There are also additional GPIO pins available for extension controls and daughter boards.  For instance, you can use those headers to connect an Arduino board for your projects.  Here could be the start point for your way of exciting applications.

CON3 (GPIO Headers)

CON3 is a DIP-26 headers.  The header pin definitions of CON3 are shown as below.

You can connect the headers for I2C, UART, SPI connections.  The 5V and 3.3 V power output are also available here.  Meanwhile, there are several pins free for GPIO pins for your specific usage.

CON3 Pin Name Multiplex Function Select GPIO
Multi 1 Multi 2
Pin 1 3.3V1 VCC-3V3
Pin 2* 5.0V1 VCC-5V
Pin 3 SDA TWI2-SDA PB21
Pin 4* 5.0V2 VCC-5V
Pin 5 SCL TWI2-SCK PB20
Pin 6 GND3 GND
Pin 7 IO-GCLK GPCLK PI3
Pin 8 TXD0 UART3-TX PH0
Pin 9 GND1 GND
Pin10 RXD0 UART3-RX PH1
Pin11 IO-0 IO-0(UART2-RX) PI19
Pin12 IO-1 IO-1 PH2
Pin13 IO-2 IO-2(UART2-TX) PI18
Pin14 GND4 GND
Pin15 IO-3 IO-3(UART2-CTS) PI17
Pin16 IO-4 IO-4(CAN_TX) PH20
Pin17 3.3V2 VCC-3V3
Pin18 IO-5 IO-5(CAN_RX) PH21
Pin19 SPI-MOSI SPI0_MOSI PI12
Pin20 GND5 SPI0_GND
Pin21 SPI-MISO SPI0-MISO PI13
Pin22 IO-6 IO-6(UART2_RTS) PI16
Pin23 SPI-CLK SPI0_CLK PI11
Pin24 SPI-CE0 SPI0_CS0 PI10
Pin25 GND2 GND
Pin26 SPI-CE1 SPI0_CS1 PI14

 

* Those 5V pins(CON3 Pin2 & CON3 Pin4) are voltage output pins from BananaPi’s PMIC(AXP209). They can NOT be power input pins from external power source. Otherwise, it may damage the BPi board.

CON1 (Camera Serial Interface)

CON1 is an extensible on-board CSI connector of Banana Pi.  It is a 40-pin FPC connector which can connect external camera module with proper signal pin mappings.  The pin definitions of CON1 are shown as below.

 

CON1 Pin Pin Name GPIO
CON1 P01 LINEINL
CON1 P02 LINEINR
CON1 P03 VCC-CSI
CON1 P04 ADC_X1
CON1 P05 GND
CON1 P06 ADC_X2
CON1 P07 FMINL
CON1 P08 ADC_Y1
CON1 P09 FMINR
CON1 P10 ADC_Y2
CON1 P11 GND
CON1 P12 CSI-FLASH PH17
CON1 P13 LRADC0
CON1 P14 TWI1-SDA PB19
CON1 P15 LRADC1
CON1 P16 TWI1-SCK PB18
CON1 P17 CSI-D0 PE4
CON1 P18 CSI0-STBY-EN PH19
CON1 P19 CSI0-D1 PE5
CON1 P20 CSI-PCLK PE0
CON1 P21 CSI-D2 PE6
CON1 P22 CSI0-PWR-EN PH16
CON1 P23 CSI-D3 PE7
CON1 P24 CSI0-MCLK PE1
CON1 P25 CSI-D4 PE8
CON1 P26 CSI0-RESET# PH14
CON1 P27 CSI-D5 PE9
CON1 P28 CSI-VSYNC PE3
CON1 P29 CSI-D6 PE10
CON1 P30 CSI-HSYNC PE2
CON1 P31 CSI-D7 PE11
CON1 P32 CSI1-STBY-EN PH18
CON1 P33 RESET#
CON1 P34 CSI1-RESET# PH13
CON1 P35 CSI-IO0 PH11
CON1 P36 HPR
CON1 P37 HPL
CON1 P38 IPSOUT
CON1 P39 GND
CON1 P40 IPSOUT

CON2 (LCD display interface)

CON2 is an extensible on-board LCD display LVDS connector of Banana Pi.  It is a 40-pin FPC connector which can connect external LCD panel (LVDS) and touch screen (I2C) module as well.  The pin definitions of CON2 are shown as below.

CON2 Pin Pin Name Multiplex Function Select GPIO
Multi 1 Multi 2
CON2 P01 IPSOUT(5V output)
CON2 P02 TWI3-SDA PI1
CON2 P03 IPSOUT(5V output)
CON2 P04 TWI3-SCK PI0
CON2 P05 GND
CON2 P06 LCD0-IO0 PH7
CON2 P07 LCDIO-03 PH12
CON2 P08 LCD0-IO1 PH8
CON2 P09 LCD0-D0 LVDS0-VP0 PD0
CON2 P10 PWM0 PB2
CON2 P11 LCD0-D1 LVDS0-VN0 PD1
CON2 P12 LCD0-IO2 PH9
CON2 P13 LCD0-D2 LVDS0-VP1 PD2
CON2 P14 LCD0-DE PD25
CON2 P15 LCD0-D3 LVDS0-VN1 PD3
CON2 P16 LCD0-VSYNC PD27
CON2 P17 LCD0-D4 LVDS0-VP2 PD4
CON2 P18 LCD0-HSYNC PD26
CON2 P19 LCD0-D5 LVDS0-VN2 PD5
CON2 P20 LCD0-CS PH6
CON2 P21 LCD0-D6 LVDS0-VPC PD6
CON2 P22 LCD0-CLK PD24
CON2 P23 LCD0-D7 LVDS0-VNC PD7
CON2 P24 GND
CON2 P25 LCD0-D8 LVDS0-VP3 PD8
CON2 P26 LCD0-D23 PD23
CON2 P27 LCD0-D9 LVDS0-VN3 PD9
CON2 P28 LCD0-D22 PD22
CON2 P29 LCD0-D10 PD10
CON2 P30 LCD0-D21 PD21
CON2 P31 LCD0-D11 PD11
CON2 P32 LCD0-D20 PD20
CON2 P33 LCD0-D12 PD12
CON2 P34 LCD0-D19 PD19
CON2 P35 LCD0-D13 PD13
CON2 P36 LCD0-D18 PD18
CON2 P37 LCD0-D14 PD14
CON2 P38 LCD0-D17 PD17
CON2 P39 LCD0-D15 PD15
CON2 P40 LCD0-D16 PD16

 

J11 (UART)

The jumper J11 is the UART interface.  For developers of Banana Pi, this is an easy way to get the UART console output to check the system status and log message.

J11 Pin Pin Name Multiplex Function Select GPIO
Multi 1 Multi 2
J11 Pin1 TXD UART0-TX PB22
J11 Pin2 RXD UART0-RX PB23

 

J12 (UART and Power source)

The jumper J12 provides the power source including 3.3V and 5V.  There is a pair of UART TX/RX signals output here.

J12 Pin Pin Name Multiplex Function Select GPIO
Multi 1 Multi 2
J12 Pin 1 5V
J12 Pin2 3.3V
J12 Pin3 NC IO-7 PH5
J12 Pin4 RXD UART7_RX PI21
J12 Pin5 NC IO-8 PH3
J12 Pin6 TXD UART7_TX PI20
J12 Pin7 GND
J12 Pin8 GND