Bit-Tree Creativity - 5-Channel I2C Splitter HUB Expansion Board

5-Channel I2C Splitter HUB Expansion Board (A048)

BIT-TREE 5-Channel I2C Splitter HUB Expansion Board expands 1 I2C interface into 5 channels. It supports simultaneous connection of multiple I2C devices, compatible with 3.3V~5V wide voltage. Equipped with power indicator, neat wiring and easy expansion. Suitable for projects with dense sensors, OLED and I2C modules, as well as programming teaching.

1 to 5 I2C Expansion Converts a single I2C master interface into 5 independent output channels, solving the problem of insufficient I2C bus interfaces.

Wide Voltage, Plug & Play 3.3V~5V wide voltage compatibility, no extra configuration required after power-on, convenient for quick wiring and debugging.

Stable Parallel Connection for Multiple Devices Supports multiple I2C devices working simultaneously, effectively avoids bus conflicts and ensures reliable communication.

BIT-TREE CREATIVITY

STEAM skills like programming will be a core competency for the next generation, and the time to cultivate this ability is now.

Parameter Category	Item	Specification Details
Basic Information	Product Model	A048
Basic Information	Module Name	5‑Channel IIC Splitter HUB Expansion Board (A048)
Basic Information	Core Function	Expand 1‑channel I2C input into 5 independent channels; support multi‑device parallel communication, resolve I2C address conflict
Basic Information	PCB Dimension	40.00mm × 24.00mm, with 4 standard mounting holes on PCB
Basic Information	Number of Output Channels	5 independent I2C output channels (channel No. 1~5)
Basic Information	Product Weight	Weight with enclosure: 12g; Bare‑board weight: 5g
Basic Information	Applicable Scenarios	Multi‑channel temperature‑humidity / light / pressure sensors, OLED display screens, MCU I2C interface expansion, projects with parallel devices suffering address conflicts
Electrical Parameters	Operating Voltage	3.3V~5V DC, compatible with full‑series mainstream MCU systems
Electrical Parameters	Communication Bus	Standard I2C bus (SCL clock + SDA data)
On‑board Components	Component Configuration	PWR power indicator LED, current‑limiting protection resistor R1
Main Input Interface CN1 Pin	GND	Power common ground; must share ground with the MCU
Main Input Interface CN1 Pin	VCC	Positive terminal for module power supply, connect to 3.3V/5V power source
Main Input Interface CN1 Pin	SDA	I2C serial‑data input pin, connect to MCU SDA
Main Input Interface CN1 Pin	SCL	I2C synchronous‑clock input pin, connect to MCU SCL
5 Expansion Channels (1~5) Pins	GND/VCC	Provide matched power supply for external I2C devices
5 Expansion Channels (1~5) Pins	SDA/SCL	Independently‑isolated I2C data and clock signal outputs, connect to external peripherals such as sensors / OLED
Packaging Solution	Optional Packaging	① Anti‑static bag soft package ② White card hanging blister box ③ Kraft paper carton

Related Products