Problem uploading to UNO

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1

I recently used my arduino to test an LCD screen but while testing my computer disconnected the arduino board. Even though it was still plugged into my computer and it was still powered. I have tried many ways but none worked. Does anyone have any tips? Thanks

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Just try to plug it in again, or it may be a device manager messup.

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may be u haven't installed arduino driverslike ch430 or something, it definitely solves your board connecting issue

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Your title should be 'Problem uploading to UNO'

1 Like
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Welcome! You have an interesting project, but first please read the advice in the topic "How to get the best from this forum". There is a proper way to post code, this allows us to help you. Taking what you posted and putting into a readable form takes a lot of time many do not want to spend. It will only take you another 10 seconds after your figure it out.

l have no clue as to what each hardware device is or how it interacts with your code, post an annotated schematic, the language of electronics, showing how you have wired it, not pictures such as frizzy (wiring) drawings they are useless for troubleshooting. Do include links to "Technical information" on the hardware parts, links to sales outlets like azon are next to useless. Doing this will have a big positive effect on your answers and will improve the accuracy of the answer a lot.

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I tried it but it didn't work

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Hi @binnn101_11. It is possible for a short or external circuitry connected to the Arduino board to cause it to be in a state where it doesn't produce a serial port.

Make sure the board is not sitting on anything conductive that could short the contacts on the bottom of the board. Make sure there isn't any conductive debris (e.g., strands of wire or component leads) on the board or on the surface the board is sitting on.

If you have a shield or any external circuitry or components connected to your Arduino board, try this experiment:

  1. Disconnect the USB cable of the Arduino board from your computer.
  2. Disconnect any shields, modules, external circuitry, etc. from your board.
  3. Connect the Arduino board to your computer with a USB cable.

Now try uploading a sketch to the board again. Does the upload succeed?

This experiment will determine whether the problem was caused by interference from your external circuitry. If so, you can then focus your attention on identifying the specific problem with the circuit and resolving it.

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thanks for the tips

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