Arduino Uno heart boot animation not showing
I just bought an arduino Uno, and on the first few uses, the heart animation showed as normal when I plugged it in but now it just doesn't and the blinking led doesn't blink either. I don't know what I did, but the board works just fine, I tried making the led blink again with the "blink" example and it worked, no avrdude error i sight. I remember trying the "fade" example, then opening a sketch and then it stopped working (the animation).
10 Replies
the board always runs the last code you loaded
Yes, and I thought that was odd, but didnt think too much of it
why odd? wouldn't you want it to run the last code?
well isnt it supposed to forget the last code I uploaded after I unplug and replug or press the reset button ?
no, pressing reset is like unplugging / replugging it, it runs the code that is currently in program memory - which stays there until you load a new sketch into program memory
it wouldn't be good if you program it to run your greenhouse and then after a power failure it went back to the beating heart...
Yea, that makes sense.
Ok, so the heart animation not being there doesnt mean anything bad, but how could I bring it back ? I really like it.
i'm sure that example sketch is on the arduino site, if you load that it will run always until a new sketch is loaded
if you are using the Arduino IDE it's likely under File | Examples
https://github.com/arduino/ArduinoCore-renesas/tree/main/libraries/Arduino_LED_Matrix/examples/MatrixIntro
most libraries (like
LED_Matrix) come with examplesOk ! Thanks for the help !
have fun with it!
Thanks !