Spark Logic

Banana Pi BPI-M1 connection guide

Banana Pi BPI-M1 Banana Pi BPI-M1 wiring guide with power, signal assignments, and bench checks.

Banana Pi BPI-M1

116 contacts Current package

Banana Pi / SINOVOIP · Allwinner A20 · 1 GiB DDR3 · 26-position CON3

Power through Micro-USB

Required

Power the board only through the dedicated Micro-USB power port for this fixture. Use a regulated 5 V supply and leave the UART adapter power wire disconnected.

  • Board supply
    • 5 V source
    • the dedicated Micro-USB power port 5 V contact
  • Board return
    • Supply return
    • the dedicated Micro-USB power port ground
    • GND (CON3-6)
    • Meter COM
  • 3.3 V check

Bench checks

  • Verify the supply polarity and connector before plugging in. With the board powered, measure the regulated 3.3 V rail against ground.
  • Confirm a normal power indicator or boot message before adding accessories.

Banana Pi BPI-M1 Hardware and GPIO

Connection scenarios

Connect a 3.3 V I²C peripheral

Use a peripheral whose data and clock lines are compatible with 3.3 V and share ground. Power the module from a separate regulated 3.3 V source within its operating limits. Pull SDA and SCL to the shared 3.3 V logic domain if the bus does not already have suitable pull-ups.

Peripheral SDA and SCL connect to the board I²C signals with common ground. Check the pull-ups and separate 3.3 V supply.PeripheralBoardSDACON3-3SCLCON3-5GNDCON3-6

Bench checks

  • Find the Linux adapter mapped to TWI2 in the board’s device tree.
  • Power the board and peripheral together. Check that both bus lines idle near 3.3 V, then query a documented register at the peripheral’s known address.

Banana Pi BPI-M1 Hardware and GPIO

Banana Pi BPI-M1 wiring map

Highlighted contacts are used in the required step or selected circuit. Select a contact to inspect it.

CON3 expansion header
Component-side connector view. Pin 1 at the marked end and odd contacts in the left column.
J11 UART0 header
Use the board’s J11 pin-1 marker. Use an expansion-header ground for the console.
J12 auxiliary header
Read the PCB index before attaching a lead.
CON1 camera connector
Contact order from the board table. Check the connector index and FFC contact side.
CON2 display connector
Contact order from the board table. Check the connector index and FFC contact side.
Selected pin details

CON3-6 · GND

Return · Ground

Board ground return.

Banana Pi BPI-M1 Hardware and GPIO

Electrical limits · Pin in the reference

Models and documents

The map covers BPI-M1 with CON3, J11, J12, CON1 and CON2. Verify the silkscreen and 26-position header before using the guide.

Banana Pi BPI-M1
Allwinner A20 · 1 GiB DDR3 · 26-position CON3