Protocentral 4-channel Bi-directional Logic Level Converter
Part Number: PC-0378

Protocentral 4-channel Bi-directional Logic Level Converter

byProtoCentral
4-channel bidirectional logic level converter for safe 3.3V to 5V signal translation. Works with I2C, SPI, and UART — essential for interfacing modern sensors with 5V microcontrollers.
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₹165
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Protocentral 4-channel Bi-directional Logic Level Converter
Protocentral 4-channel Bi-directional Logic Level Converter
₹165
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This simple board lets you convert low-level digital signals to higher-levels and vice versa. Perfect for 5V to 3.3V interfaces, including I2C interfaces.

If you have tried to interface newer 3.3V sensors/ICs to an Arduino, you would have comes across the problem of logic level convertion. Most of the newer ICs have a 3.3V logic high while the Arduino works with 5V. This boards sits in between to do the convertion both ways.

Since this is based on the BSS138 MOSFETs, it plays well with I2C interfaces. This board can plug into a breadboard with standard 100 mil headers (headers included).

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Works With

developer_board Arduino cable I²C swap_horiz SPI
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Key Specs

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4× BSS138 MOSFET Main IC
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1.8 V – 5 V Voltage
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I²C / SPI / UART (bidirectional) Interface
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4 channels, bidirectional Resolution
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4-channel logic level translation Channels
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Specifications

Board Size 5 × 10 × 2 cm
License CC BY-SA 4.0 (SparkFun reference design)
Part Number PC-0378
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What's in the Box

  • check_circle 4-channel bidirectional logic level converter board
  • check_circle Standard 100-mil pin headers