New Arduino R4 WiFi doesn't work with my hardware / Neuer Arduino R4 WiFi kann mit meiner Hardware nicht

Community General Discussion
1

Ich verwende für meine Hardware, eine Bioreaktor-Steuerung, einen Uno R4 WiFi. Der Controller lässt sich seit einiger Zeit nicht mehr neu flashen mit einem neuen Sketch. Er steuert die Hardware aber mit dem aktuell auf dem Chip befindlichen Programm richtig an.
Verbinde ich einen neuen Controller mit demselben Sketch, läuft das Programm dagegen überhaupt nicht; auf den LCD-Displays wird nichts angezeigt, und die übrige Hardware reagiert nicht. Nachdem ja der "alte" Controller die Hardware richtig ansteuert, kann das Problem offensichtlich weder an meiner Hardware noch an meiner Software liegen. Daher meine Frage: hat sich vielleicht an der Spezifikation des Uno R4 WiFi irgendetwas geändert? Oder gibt es irgendwelche anderen Veränderungen, die zu so einem nicht nachvollziehbaren Verhalten führen können?
Ich bin vollkommen ratlos und weiß überhaupt nicht mehr weiter, wo hier das Problem zu suchen ist!
Vielen Dank für eure Antwort(en)!

And in English:
I use a Uno R4 WiFi for my hardware, a bioreactor controller. The controller has not been able to be reflashed with a new sketch for some time. However, it controls the hardware correctly with the program currently on the chip.
If I connect a new controller with the same sketch, the program does not run at all; nothing is shown on the LCD displays and the rest of the hardware does not respond. Since the "old" controller controls the hardware correctly, the problem obviously cannot be with my hardware or my software. Hence my question: has anything changed in the specification of the Uno R4 WiFi? Or are there any other changes that could lead to such incomprehensible behavior?
I am completely at a loss and have no idea where to look for the problem!
Thank you very much for your answer(s)!

2

Can that be the same problem with "new controller"? Doesn't work because of failed upload?

3

Mod edit: This reply is probably AI generated and should be regarded with suspicion.

hmmm according to me:

  1. Check the documentation: Ensure your hardware is compatible with the Arduino Uno R4 WiFi. Review the board's documentation and your hardware's specifications.
  2. Verify connections: Double-check the connections between your hardware and the Arduino board. Make sure they are secure and not loose.Disconnect any modules or shields and disconnect RX and TX.
  3. Power requirements: Confirm that your hardware is compatible with the Arduino board's power output. The Uno R4 WiFi has a 5V regulator, but some hardware might require 3.3V or other specific voltages.

Software Issues

  1. Firmware version: Ensure you're running the latest firmware on your Arduino board. You can check for updates in the Arduino IDE.
  2. Library compatibility: If you're using libraries to interact with your hardware, verify that they are compatible with the Arduino Uno R4 WiFi.
  3. Code issues: Review your code for any errors or incompatibilities with the new board.

Troubleshooting Steps

  1. Check the serial monitor & plotter: Use the serial monitor & plotter in the Arduino IDE to see if there are any error messages or clues about what's going wrong.On verbose output also to see.
    hope this helps :slight_smile:
4

No, not at all. The new controller has no problems to be flashed with my software. But nevertheless thank you for your answer!

5

Your third issue (power requirements) is perhaps the problem; not the voltage but the current requirements of my hardware: there are two lcd-displays with backlight always on and several LEDs. I could imagine, it's too much current, the hardware needs. Therefore i will try to supply my hardware with a dedicated power supply and no longer from the arduino.
Thank you for your suggestions! :slight_smile: