Hi, I just buyed a Arduino R3 SMD ATMEGA328p yesterday, an i got this problem. I see that all of Arduino Boards have blinking L Lights or not But mine is different, the L Light doesnt blink. Also im an newbie to Arduino, and Arduino are very priceful in my Country. So if you guys have any ideas pl…

A new board should have the blink sketch pre-loaded; the L-LED should flash one second on, one second off. Yours does not do that (if I understand you correctly) which can indicate that either the hardware is faulty or that the blink sketch was not loaded. The board should also have a bootloader i…

No it doesnt, and heres what i bought : https://id.shp.ee/2u6WHxe Also in the ISCP pins, i also saw some sparks. and the Center Chip is also super hot.

[image] coolboyfount: and heres what i bought : https://id.shp.ee/2u6WHxe Your link requires a login; no thanks. [image] coolboyfount: No it doesnt [image] coolboyfount: Also in the ISCP pins, i also saw some sparks. and the Center Chip is also super hot. Nothing should get hot…

Did it come in a genuine Arduino box with the Arduino trademark?

Sorry for the link, So basically the L light is working properly (In day 1) and in day 2 it started to get weird (Like the L light not going on) Ill try to buy a new one, because i already buyed many things for my project, like relays etc. And also thanks for the response!

[image] coolboyfount: So basically the L light is working properly (In day 1) and in day 2 it started to get weird (Like the L light not going on) So what is your project about? A wiring mistake can easily kill your Uno; incorrect design as well.

L Light Does Not Light Up

Official Hardware UNO Family UNO R3

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L Light Does Not Light Up

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