I recently built a really cool project using a Raspberry Pi Zero Wireless board and a Pimoroni Unicorn pHAT LED matrix. (It displays the status of my running unit tests in real time – check it out here). This project is designed to be “headless” – it’s not connected to any display.
This poses a problem – although I’ve configured the WiFi, I’m using DHCP and therefore don’t know what IP the Pi will be using when it boots! Without this information, I can’t SSH into the device or connect to my project remotely. I therefore needed a way to have the Pi inform me of its IP address on boot.
My solution: display the IP address on the Unicorn pHAT LED matrix in binary! Not only is this practical, but it also boosts my geek cred 😉
In this tutorial, I’ll walk you through how to replicate this solution for your own projects.
Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!
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 — Presentation: Ten Year Futures – Benedict Evans
Wearables — Simulate tattoos
Electronics — Servo Pulses
Biohacking — Nutrigenomics – Personalized Vitamin Supplements Based on DNA
No comments yet.
Sorry, the comment form is closed at this time.