I used the 60 LED per meter kind because they are cheap and text looks nice, but other kinds can be nice too depending on how you lay it out.
You can get them from Amazon or Aliexpress or Adafruit or anyplace else.
(All these use compatible protocol and timing) In this case, the ground from the power supply is connected to both the Arduino and the strips. You can connect the power supply to the same end of the strips that the Arduino is connected to if that is easier. You do not need to use a breadboard to connect the ground wires – you can just twist them together.
Includes 6 premade fonts and it is easy to edit those or make your own.
SCROLLING LED BADGE BUTTONS ON END SERIAL
Can also be fed by any bluetooth device using a cheap and easy to buy HC-05 adapter (or anything else that has a 5 volt serial TX pin).
Easily fed with live data using the Arduino’s built-in serial port which shows up on whatever computer it is plugged into.
Display can be very long (100’s of feet) because it generates the pixel signals on the fly rather than using a frame buffer.
Uses cheap and easy to buy pixel strips, and a ubiquitous Arduino Uno.
Almost anyone should be able to understand and modify it. The code has also been completely reworked to be as simple and reliable as possible. That’s right – you can now have a Python program running on a Raspberry Pi that pulls bitcoin prices from the internet and displays them on the sign in real time. This ultimate update adds the #1 most requested feature – the ability to update the display in real time with live data over either USB or Bluetooth. What started out as a proof of concept for parallel processing on a microcontroller has become a 20-foot tall Angry Birds game, Star Wars Mouse Droid, EDC Music Festival Message Flag, a (student-built!) School Info Center, and so many more! All you need are some cheap pixel strips, an Uno, and a 5 volt power supply (I used a USB charger with the connector cut off).ĭemo video and easy instructions below! Introduction Display live scrolling sports scores, crypto prices, or hot tweets on the side of your favorite newspaper building.