USE UPS NEXT DAY AIR FOR ANY USA ORDER BEFORE 11AM ET *TODAY* 12/19/2014 TO GET YOUR PACKAGE IN TIME FOR XMAS - PLEASE SEE OUR SHIPPING DEADLINE NOTICE FOR MORE DETAILS!

September 14, 2012 AT 1:00 am

Flickr Pool Friday – 8-channel Bi-directional Logic Level Converter – TXB0108

Screen Shot 2012 09 10 at 3 43 34 PM

Andrew D2010 writes:

This level converter was purchased with the intention to help interface various modules with my Raspberry Pi but here I’m using it with this GPS module (GoodLuckBuy “Skylab GPS Module MT3329 SKM53 with Embedded GPS Antenna Arduino Compatible” SKU: 86236). It uses LVTTL (0 – 3.3V) for its serial RXD and TXD pins. I thought I’d be able to use it without reading the datasheet or tutorials but I struggled with the Output Enable (OE) and with the need for both VCCA and VCCB. In short VCCA needed to go to 5V, VCCB to 3.3V (both on the Arduino) and OE can be left floating / connect to VCCB (I’ve just read there is a 10k pull-up resistor on this pin).

The GPS did work without the level converter so I might steal this part if I need it elsewhere.

Want to be featured on Flickr pool Friday? Add your Adafruits to the Adafruit Flickr pool.


Check out all the Circuit Playground Episodes! Our new kid’s show and subscribe!

Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground”Adafruit’s Apps!



No Comments

No comments yet.

Sorry, the comment form is closed at this time.