Uploading code

Using Arduino Project Guidance
1

Is there a way to upload the arduino code without the previous program running?

See, I’m trying to connect the USB cable to my PC to upload a code. However, as soon as I connect the USB to my Arduino, my robotic arm goes crazy. This is obviously due to the fact that there is a previous program in the board. Another way to put my question is, if there is a way to upload my sketch without running the previous one as soon as I connect the USB cable to my Arduino?

Thanks!

2

Hold the reset key until the IDE starts uploading.

The IDE actuates reset as part of the uploading process anyway. You just have to pick the time to release it.

3

Ok, thank you

4

Why don't you just disconnect the power supply to the arm's motors?