Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Operating Voltage Input	1.8V to 5.5V
Operating Voltage Output	1.8V to 5.5V
Interface Type	I2C / IIC / SMBus
Channel Count	2 Channels (SDA, SCL)
Logic Direction	Bi-directional
Max Data Rate	Up to 2 MHz
Board Dimensions	24mm x 16mm x 3mm
Mounting Hole Diameter	3.0 mm
Connector Type	Male Header Pins (Not Soldered)
Compatible Systems	Arduino, Raspberry Pi, ESP32, STM32

6 reviews

Anonymous

Mar 28, 2026

Rating: 5/5

No noise, clean signals

Oscilloscope tests show clean square waves on both the high and low voltage sides. No noticeable noise introduction. Essential component for any mixed-voltage setup.

Anonymous

Mar 23, 2026

Rating: 4/5

Solid build, clear labeling

The PCB quality is good and the silk screen labeling makes wiring very easy. I deducted one star because the headers weren't pre-soldered, but that's minor. Works exactly as described.

Anonymous

Mar 20, 2026

Rating: 5/5

Reliable level shifting

Used this in a custom IoT device prototype. It handles the I2C clock stretching well and maintains signal integrity. Very compact form factor fits nicely in tight enclosures.

Anonymous

Mar 14, 2026

Rating: 5/5

Perfect for mixing 3.3V and 5V sensors

This module solved my communication issues between a 5V Arduino Uno and a 3.3V OLED display. The bi-directional shifting works flawlessly without any lag. Highly recommended for hobbyists.

Anonymous

Mar 07, 2026

Rating: 4/5

Great value for the price

Bought five of these for our workshop. They all work perfectly out of the box. Good for teaching students about logic levels and I2C communication protocols.

Anonymous

Mar 01, 2026

Rating: 5/5

Saved my project!

I was about to give up on connecting my BMP280 sensor to my 5V board until I found this. Setup took less than 10 minutes. Stable readings and no voltage spikes.

5 FAQ

Q: Does this come with header pins included?

A: Yes, the package includes a set of male header pins, but they are not pre-soldered to the board so you can customize the mounting orientation.

Q: Can this module handle 4-channel I2C buses?

A: No, this specific model supports 2 channels (SDA and SCL). For multi-channel setups, you would need multiple modules or a dedicated I2C multiplexer.

Q: What is the maximum current this shifter can handle?

A: This is a logic level shifter designed for signal lines, not power delivery. It handles typical I2C pull-up currents (usually a few milliamps), not load currents.

Q: Can I use this for SPI communication as well?

A: While physically possible to connect, this module is optimized for open-drain I2C lines. For SPI, which uses push-pull outputs, a dedicated SPI level shifter is recommended for best reliability.

Q: Is it compatible with 1.8V logic systems?

A: Absolutely. The module supports a wide voltage range from 1.8V up to 5.5V on both the low-voltage and high-voltage sides.

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