empowering creative people

Raspberry Pi > Prototyping

Logic Level Converter Bi-Directional

SKU: BOB-12009

$4.85 AUD, inc GST
$4.41 AUD, exc GST

More Views

Logic Level Converter Bi-Directional
4.85 AUD

SKU: BOB-12009

$4.85 AUD, inc GST
$4.41 AUD, exc GST
13 reviews 0 5 4.9
Quantity Discounts:
10+ $3.909 (exc GST)
Shipping Offer


  • $6.95 Standard (2-4 days, tracked)
  • $9.95 Express (Overnight*, tracked)
  • $3 Economy Post* (3-7 days, no tracking)
  • FREE Pickup (Newcastle only)

Shipping costs may increase for heavy products or large orders.

Exact shipping can be calculated on the view cart page.

*Conditions apply, see shipping tab below.

If you’ve ever tried to connect a 3.3V device to a 5V system, you know what a challenge it can be.

This Bi-Directional Logic Level Converter is a small device that:

Safely steps down 5V signals to 3.3V


Steps up 3.3V to 5V at the same time.

If you'd like to see a free demonstration of how you can get it working, view our Logic Level converter guide for a to-the-point account.

This level converter can also work with 2.8V and 1.8V devices. What really separates this Logic level converter from our previous versions is that you can successfully set your high and low voltages and step up and down between them safely on the same channel. Each level converter has the capability of converting 4 pins on the high side to 4 pins on the low side with two inputs and two outputs provided for each side.

The level converter is very easy to use. The board needs to be powered from the two voltages sources (high voltage and low voltage) that your system is using. High voltage (5V for example) to the ‘HV’ pin, low voltage (3.3V for example) to ‘LV’, and ground from the system to the ‘GND’ pin.

Dimensions: 0.63 x 0.52" (16.05 x 13.33mm)


This product is listed in:

Documentation and Resources:
Educational Workshops
  • Raspberry Pi Workshop for Beginners
  • Welcome to the Raspberry Pi Workshop for Beginners! Here you'll be able to follow along with our series of bite-sized videos that cover everything you'll need to know to get started with your Raspberry Pi, and start making awesome projects. My name...
  • Arduino Workshop for Beginners
  • Welcome to the Arduino Workshop, where you'll be able to follow our guided course which covers everything you'll need to know in order to create your own Arduino projects and become a leveled up maker. My name is Sam and along with being a maker my...
  • Arduino Audio Recorder with Playback
  • This project started with an idea, as most projects do. I wondered if I could use the Arduino UNO to record audio and play it back. I wanted something to amuse the grandkids. They would press a button, say something and the device would then repeat what they had said. ...
  • Rain Gauge Data Logger
  • Summary A Raspberry Pi 3B is used to collect digital counts from an electronic rain gauge (1mm of rain per reed switch closure by magnetic see-saw). It has been running without issues for over 12 months. A UPS powers the Pi so it is immune from short power glitches. The total count is displayed on an LCD screen with reset and inc/dec test buttons. “To HTML” and “To LCD” routines are also included to simp...
  • Television Media Centre
  • Introduction: I have a flat screen television that is about 7 years old that I purchased before Smart TVs were commonly available. What I wanted to achieve with My Pi project was to turn my slightly old TV into a media centre. I wanted to play music through my TV as well as play saved movies and stream internet content. It was important for me to be able to stream ABC iView and SBS On Demand as they provide a free service and ...
  • GraviTrack Enhancements - Lights and Sound
  • Introduction Searching for solar panels and related items on the Core Electronics website; I came across the Solarbotics GraviTrack Marble Machine Kit. I thought the kit would be a good educational tool for the grandkids. The kit was a hit, but the power switch was hard to access at the back of the machine and it only turned on and off. I had been experimenting with programmable RGB LEDs, Piezo speakers and a Light dependent re...
  • My ghostbusters proton pack
  • Hi all. Thought I'd share with you my modded Spirit Halloween proton pack. It's about 80% scale, which is plenty big enough for my 7-year-old son, and still looks decently sized on adults. As soon as I learned of this pack, 5-year-old me just had to get one. And I had just gotten my Arduino beginners kit a week earlier. I knew what had to be done :)...

Product Comments

Customer Reviews

  1. Review by Richard verified purchaser

    worked well with no problems. staff helpful pre purchase. (Posted on 29/01/2019)

  2. Review by Jonathan verified purchaser

    Works flawlessly with the Raspberry Pi to hook 5V components up to it's 3.3V GPIO pins. Easy to wire, extremely small, and plenty of channels to work with. Would definitely buy again. (Posted on 7/11/2018)

  3. Review by Robert verified purchaser

    Excellent product (Posted on 22/10/2018)

  4. Review by Armen verified purchaser

    I purchased this for a serial communications project requiring interoperability between 3.3V and 5V systems.

    This device not only handles data both ways (hence the bi-directional aspect) but thanks to the relatively low time delay of the BSS138 transistors on board, my 3MHz data transmissions were no problem.

    I would highly recommend this product! (Posted on 8/10/2018)

  5. Review by phil verified purchaser

    great and cheap level shifter between 5V and 3.3V logic. You can connect without logic level shifting, but it will be running out of spec and will only work *most* of the time.. (Posted on 10/09/2018)

  6. Review by Gregory verified purchaser

    Tiny bi-directional logic converter that just works. (Posted on 21/08/2018)

  7. Review by Glenn verified purchaser

    Great product
    (Posted on 20/08/2018)

  8. Review by Leith verified purchaser

    Simple to use and convenient (Posted on 1/05/2018)

  9. Review by John verified purchaser

    I'm using this for translating between the Raspi (3v3) UART and the TTL interface of a RS-422 converter which is 5v only. Also for 3v3 <-> 5v conversion on a couple of 1-1wire busses. Seems to work well. Unfortunately it doesn't come with pins so you may want to buy some of those separately. (Posted on 30/03/2018)

  10. Review by Brendan verified purchaser

    These work as expected... if only SBC makers would incorporate this into their board designs... would make life a whole lot easier! (Posted on 1/11/2017)

  11. Review by John verified purchaser

    I received this the next day after ordering it, and it works of course. (Posted on 10/08/2017)

  12. Review by Mervyn verified purchaser

    good as described and prompt delivery (Posted on 21/07/2016)

  13. Review by Frank verified purchaser

    Does what it says, it's tiny though which makes soldering a bit tricky. (Posted on 10/03/2016)

Exact shipping can be calculated on the view cart page (no login required).

We deliver Australia-wide with these options:

  • $3 for Small Items (3-7 days, not tracked, only available on selected small items)
  • $6.95 for Standard Post (2-4 days, tracked)
  • $9.95 for Express Post (Overnight for most of Australia, 2+ days for rural, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region (only after we email you to notify your order is ready)

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $11.49 for Pack and Track (3+ days, tracked)
  • $16.50 for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount might increment based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
NSW, 2289

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

Have a product question? We're here to help!