4-Channel Logic Level Converter Bi-Directional Shifter Module (3.3~5VDC) | 8-Pack


  • Convert logic levels from/to (bi-directional) 3.3VDC and 5VDC for digital communication between devices
  • Use up to 4 independent channels per converter board (8-pack included)
  • Perfect for I2C, Serial UART, or SPI communication between Arduino, Raspberry Pi, ESP8266, ESP32 development boards
  • Easy-to-use: supply power from the two voltage sources (high voltage and low voltage) and connect each data line to one of the channels (e.g., TX to channel 1 and RX to channel 2).



As digital devices get smaller and faster, 5V logic has given way to lower-voltage standards like 3.3V, 2.5V, and even 1.8V, leading to a need for help when components that operate at different voltages have to communicate with one another. For example, a 5V device might fail to read a 3.3V signal as high, and conversely, a 3.3V device might be damaged by reading a 5V signal. The level shifter in this listing solves these problems by offering bi-directional voltage translation of up to four independent signals, and its compact size and breadboard-compatible pin spacing make it easy to integrate into projects.

An important feature of this logic level converter is that they’re bi-directional, which means that it can transmit data from high to low and/or low to high on all channels. It’s perfect for level-shifting between devices that are sharing a data wire, like I2C or a one-wire interface.

As with all of our Boards the pin headers are included, but they’re not soldered in to allow for different use cases!


  • The lower-voltage supply can be 1.2~3.6VDC whereas the higher-voltage supply can be 1.65~5.5VDC
  • Four independent, bi-directional channels are available
  • Size: 28mm × 19mm (1.10″ × 0.75″ (L×W))
  • 10-Pin header included (soldering needed!)

Additional information

Package Dimensions

1 x 1 x 0.25 inches; 1.6 Ounces

Item model number


Date First Available

September 13, 2020






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