Knowledge Base

The AB Electronics UK Knowledge Base provides support solutions, tutorials and troubleshooting guides.

Knowledge Base

Logic Level Converter (Discontinued)

Information for Logic level converter

level converter PCB

The AB Electronics UK logic level converter is a small PCB that safely allows you to interface devices that step down 5V signals to 3.3V signals and up 3.3V signals to 5V.

The logic level converter has 4 inputs and outputs and can be used with I2C, SPI, UART, etc.


The board needs to be powered via two sources, 5V and 3.3V and your data lines are linked via pins 1 to 4 on each side, so an input on pin 1 will be converted to the lower or higher output on the adjoining pin 1. This is repeated for pins 2 to 4.

The logic level converter is compatible with Arduino and Raspberry Pi.

Dimensions: 15.6 x 13.7mm

The pins are 2.54mm spacing with 12.54mm between the two sides.

View schematic

View Schematic

Was this article helpful? Yes No

Please tell us how we can improve this article:

Created 31/08/2016 | Last Updated: 25/10/2023

Related Expansion Boards

Related Articles

ADC Pi (Discontinued)
ADC Pi V1 and V2 expansion boards
Serial Pi (Discontinued)
Serial Pi RS232 Expansion board
Expander Pi (Discontinued)
Information for Expander Pi expansion board Legacy Product
Logic Level Converter (Discontinued)
Information for Logic level converter
RTC Pi (Discontinued)
Product Information for the version one RTC Pi board
ADC DAC Pi (Discontinued)
2 Channel ADC and 2 Channel DAC for the Raspberry Pi
Buffer Pi - Legacy Product
Bi-directional voltage-level translator for the Raspberry Pi
RTC Alarm Pi (Discontinued)
RTC Clock Module with alarm for the Raspberry Pi
Com Pi (Discontinued)
Com Pi for the Raspberry Pi
IO Pi Plus 1.0 (Discontinued)
IO Pi Plus 1.0 Legacy version information
Delta-Sigma Pi (Discontinued)
Delta-Sigma Pi ADC Board
IO Pi (Discontinued)
IO Pi Expansion board
IO Pi Zero (Discontinued)
Legacy product information for the IO Pi Zero
1 Wire Pi (Discontinued)
1 Wire Pi expansion board legacy information
1 Wire Pi Plus 1.0 (Discontinued)
1 Wire Pi Plus 1.0 - Legacy version information