All Questions
3
questions
0
votes
0
answers
59
views
Arduino Uno no longer allowing me to upload my sketch
I’m trying to upload my sketch to my Arduino Uno but get the following error message:
avrdude verification error content mismatch.
Does anyone know what this means and what I need to do to fix this ...
- 13
0
votes
1
answer
110
views
Arduino IDE changes Com Port from 3 to 5 - why?
Have Arduino IDE 1.8.1 set up on Com Port 3. Works fine with Adafruit Uno board. Plug in another Adafruit Uno Arduino board, that does not work properly, and IDE changes Com Port 3 to Com Port 5. Why,...
2
votes
3
answers
8k
views
Arduino IDE "launch 4j" error
I have a computer running Windows XP. I am trying to run the Arduino IDE 0022. I double-click on arduino.exe, it waits about 30 seconds on the load up title screen, and then it gives me this error:
...
John