I just finished building a cheap computer just for browsing the internet and uploading

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I just finished building a cheap computer just for browsing the internet and uploading Arduino programs. My program I’ve been working on for the past few weeks works flawlessly with my old laptop and has no issues at all. But with my new PC the program freezes at the same spot every time it gets to a certain pattern. I have the exact same program open on both computers at the same time and just move the USB cable, hit upload and it works on the laptop but not on the new PC… on the PC it won’t send data to the serial monitor after the certain problematic pattern and just sits there frozen once it gets to that pattern. But with my laptop it’s perfectly fine. Any ideas?

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I have no idea but now I really want to know!

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Update: if I upload the program on my laptop, plug it into the PC and open the serial monitor on the PC it works just fine. Maybe I need to update a driver on the PC or something??

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Make sure the PC’s updates are current, and yes also check driver versions across the two machines.

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Updated Arduino IDE on the laptop from 1.6.7 to 1.8.2 and now my laptop is doing the same thing… and the PC has the latest version of everything.

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Reverted my laptop back to 1.6.7 and now it works again. Even with the adafruit COM&LPT driver that I saw was updated. I think. Either way, it works now and it does what I need it to. Also installed 1.6.7 on my PC and THAT works. So maybe when I have more time I’ll go through each previous version of the IDE to figure out where it stopped working and maybe pinpoint what’s causing this…

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And I thought you all would get a kick out of this. There’s mini-me, the PC I’m talking about. And mega-me, a massive, all aluminum, ultra-rare InWin PC case that I got for an amazing price. It’ll be TRICKED OUT with LEDs eventually… that’s a standard size 2.5" SSD on the top you see there for size reference.missing/deleted image from Google+

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missing/deleted image from Google+

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It’s possible that v1.8 is breaking things. I’d say stick with v1.6 for the time being. v1.8 is still fresh out of the oven.

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@Ashley_M_Kirchner_No yeah, all that matters to me is that it works. Haha I don’t need the very latest and greatest. Heck, the processor I bought for my little PC is 5 years old. :joy: pentium G2140.