How to make a Beaglebne and Arduino communicate. by chwei
Say you’ve got this nice Ardunio project that provides serial data, but it needs a FTDI and you don’t want to tie up your BeagleBone’s (or BB) USB port or use a hub. Well, it’s not as hard as you think, and you don’t need a FTDI!
The BB has 4 TTL serial ports available, and this how-to will show you how to use one to talk to an Arduino. I’m going to show this by using a minimal Arduino on a breadboard, but you can do this with a normal Arduino as well, just use an external power adapter and don’t plug in the USB. The “gotcha” to this is that the BB’s ports run at 3.3VDC and the Arduino runs at 5VDC. We’ll solve that using a logic level shifter.
Things you’ll need:
– Breadboard and some jumper wires
– a BeagleBone (any revision including black should work the same)
– an Ardunio
– a Logic level shifter that supports 5v-3.3v and bi-directional on the TX line.
Each Tuesday is BeagleBone Black Day here Adafruit! What is the BeagleBone? The BeagleBones are a line of affordable single-board Linux computers (SBCs) created by Texas Instruments. New to the Bone? Grab one of our Adafruit BeagleBone Black Starter Packs and check out our extensive resources available on the Adafruit Learning System including a guide to setting up the Adafruit BeagleBone IO Python Library. We have a number of Bone accessories including add-on shields (called “capes”) and USB devices to help you do even more with your SBC. Need a nice display to go along with your Bone? Check out our fine selection of HDMI displays, we’ve tested all of them with the Beagle Bone Black!
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!
Maker Business — “ORANGE PI: MEETING WITH STEVEN ZHAO IN SHENZHEN”
Wearables — Design with IFTTT
Electronics — Keep track of those rails!
Biohacking — Why Our Eyes Cannot Look at a Solar Eclipse
No comments yet.
Sorry, the comment form is closed at this time.