Serial Monitor Lagging

Using Arduino Project Guidance
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Hello, I am working on a project that uses a Bluetooth module that helps display the MPU6050 sensor output on the serial monitor wirelessly. The problem that I am having is that when I try to change the power supply (before: the USB is still connected to the laptop) to a 9V battery the serial monitor seems to be lagging. I was wondering if the battery is causing this or maybe something else? I attach some photos below.

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Output when the project was powered using the USB connected to the laptop. (the output is continuous)

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Output when the project was powered using a 9v battery with a 7805 regulator. (output is not continuous and is going back from the start)

2

Are you are trying to use one of these:

1200×1199 116 KB

?

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Yes I am

4

Instead of rehashing the same conversation over and over again, use this:


and the words "9 volt battery" to get a load of postings on why those do not work that well.

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A 9V battery is always a bad idea for an Arduino project :slight_smile:

the Serial monitor is set at 9600 bauds it's not super fast.. move to 115200 or more and change the Serial.begin() to match that in the code

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Oh okay, I'll do search it first. Thank you for the reply.

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Oh I see, might as well change to another battery supply. Thank you

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JML also said that. It's good advice, but since you didn't ack it, I figured it bore repeating.

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