Fingerprint Sensor AS608 - A Beginner's Guide
One touch can replace keys. This project uses an optical fingerprint sensor to enroll users and then grant access with a quick scan.
read tutorial →
Build More with Logic Level Shifter, 4-Channel, Bidirectional
The Logic Level Shifter, 4-Channel, Bidirectional is a practical support part for wiring, level shifting, programming, or mounting in embedded builds.
It helps make integration easier and cleaner in prototypes as well as finished systems.
Why you'll love it
- Translates low ↔ high both ways: no direction pins needed for typical bus use—each channel is bidirectional
- Great for mixed-voltage systems: prevents 5V devices from misreading 3.3V highs and protects 3.3V devices from 5V logic
- Compact: tiny module with 0.1" pin spacing for breadboards and perfboards
- Protects low-voltage devices from higher-voltage logic
- Improves reliability when a “HIGH” level is borderline
- Clean solution for 1.8V/2.5V/3.3V ↔ 5V systems
What you can build
A useful add-on for prototype wiring, level shifting, board mounting, connector work, or programming tasks in embedded systems.
Technical specifications
| Product | Logic Level Shifter, 4-Channel, Bidirectional |
|---|---|
| Brand | Pololu |
| Category | Accessory / Interface Part |
| Operating Voltage | 1.5-7 V |
| Channels | 4 |
| Interface | I2C, TTL serial |
| Support | Official Pololu product search and support resources linked below |
Official resources
Find this product on Pololu | Pololu support and resources
What’s in the box
1 × Logic Level Shifter, 4-Channel, Bidirectional
Frequently Asked Questions
Will this work with Arduino or similar boards?
Yes, with the correct supply voltage and interface wiring for the specific product.
Yes, with the correct supply voltage and interface wiring for the specific product.
Is this good for robotics projects?
Yes. Pololu parts are widely used in robots, motion systems, and embedded prototypes.
Yes. Pololu parts are widely used in robots, motion systems, and embedded prototypes.
Where can I find official docs?
The description below links to official Pololu search and support resources for this item.
The description below links to official Pololu search and support resources for this item.
Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.
Schools / class POs: we accept Purchase Orders for accredited schools and universities. contact us with your PO details.
Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
Customers also bought
Build with this board
Thumb Joystick - A Beginner's Guide
Wire a joystick to your Arduino, read X/Y, then print UP / DOWN / LEFT / RIGHT to the serial monitor.
read tutorial →Motor Drive (BTS7960 43A) - A Beginner's Guide
Bench-test a 43 A motor driver before wiring the full project. Catches weak power, mis-pinning, and dead boards before they cost you time.
read tutorial →Raspberry Pi Pico (RP2040) - A Beginner's Guide
Coming from UNO and the Pico won't show a COM port? Here's the BOOTSEL trick, the driver fix, and the first sketch that actually works.
read tutorial →Notes from the bench
Ask the community
Project Showcase — show what you built
Share what you built. Photos, BOM, what worked, what didn't.
view thread →How to ask a good question (and actually get answers)
Symptom + what you tried + clear photo = answers within hours.
view thread →ESP32 brownout when wiring a sensor — fixes that worked
Brownout reset when adding a sensor? Notes on supply decoupling and GPIO checks.
view thread →First Arduino — sketch upload error, what to try?
Upload failing on your first Uno? Driver, COM port, board match — checklist inside.
view thread →