Description
The I2C Logic Level Converter is a bi-directional 4-channel module that allows microcontrollers and peripherals with different voltage levels to communicate without damaging components. Commonly used in projects combining 3.3V boards like ESP32 or Raspberry Pi with 5V sensors, modules, and displays. Its bi-directional design ensures smooth communication across all I2C lines.
Key Features
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4-channel bi-directional logic level conversion
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Supports 1:1 conversion for SDA and SCL lines
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Compatible with I2C communication protocol
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Works with 3.3V and 5V logic devices
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Compact, solderless, and easy to use
Variants
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4-channel I2C Logic Level Converter (standard module)
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2-channel version (for SDA & SCL only)
Specifications
| Feature | Details |
|---|---|
| Channels | 4 bi-directional |
| Input Voltage | HV: 5V, LV: 3.3V |
| Supported Logic | 3.3V ↔ 5V |
| Communication | I2C, general logic signals |
| Dimensions | ~30 × 17 × 3 mm |
Applications
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Interface 3.3V microcontrollers (ESP32, Raspberry Pi) with 5V I2C sensors/modules
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Safely connect OLED displays, RTC modules, and other peripherals
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Embedded systems requiring mixed voltage communication
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IoT projects with multi-voltage devices
Compatible Boards / Circuits
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Arduino Uno, Mega, Nano
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ESP32 / ESP8266
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Raspberry Pi / Pico
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Any I2C-compatible device
Reviews
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