Uno R4 · scrolling matrix text
ArduinoGraphics scrolls HI across the real 12×8 matrix in 50 ms steps. Edit the text or scroll speed in Code. Recompiling requires the pinned ArduinoGraphics 1.1.5 library.
What's on the bench
- Arduino Uno R4
- Battery
How it's wired
- Battery · pos→Arduino Uno R4 · 5v
- Battery · neg→Arduino Uno R4 · gnd
The code
This Arduino C++ sketch lives in the Code tab; sign in and press Compile & upload to build real firmware for the emulated board.
#include <ArduinoGraphics.h> #include <Arduino_LED_Matrix.h> ArduinoLEDMatrix matrix; void setup() { matrix.begin(); } void loop() { matrix.beginDraw(); matrix.stroke(0xFFFFFFFF); matrix.textScrollSpeed(50); matrix.textFont(Font_5x7); matrix.beginText(0, 1, 0xFFFFFF); matrix.print(" HI "); matrix.endText(SCROLL_LEFT); matrix.endDraw(); }
Firmware licence
Notice: this firmware uses the LGPL-licensed Arduino core library
arduino-unor4wifi-matrix-scroll.bin is statically linked with ArduinoCore-renesas 1.6.0, in Breadboard's port of its UNO R4 WiFi variant to Renesas FSP 5.3.0. Parts of that core are licensed under the GNU Lesser General Public License, version 2.1 or (at your option) any later version ("the Library"). Breadboard distributes this firmware under terms that permit you to modify the work for your own use and to reverse engineer it for debugging such modifications.
- Relink package: arduino-unor4wifi-matrix-scroll-relink.zip (372 KB)
- Corresponding source: ArduinoCore-renesas-1.6.0-fsp53-source.zip (3.7 MB), ArduinoGraphics-1.1.5.zip (55 KB)
- Licence texts and relink instructions
