2 x Atmega328P-PU Replacement Chip for Arduino UNO R3 - Bootloader

Programed with blink, very helpful.

I just can tell you that this is one of those sellers that I have to say Thank You. The items were programmed perfectly, the packaging is just great, perfect presentation and the microcontrollers worked just excellent. If you can make the shipping time faster that would be a Plus for your company.

None of them respond to any commands. I ended up having to have to throw them away (not worth my time to ship back). I am uncertain as to why this was the case however they both return 0x0 signatures and are unresponsive. The advertising says that not only the bootloader but Blink is preinstalled suggesting that you could simply drop it into an Arduino board and it should work, this is not the case. Not recommended.

Bought these for replacement and extra. One had bootloader installed and the other did not. Drove me nuts trying to figure out why I could not upload to it until I leared it had no bootloader installed.

Shipped fast and I was able to replace a damaged processor on my Arduino UNO. I ordered a couple more as backups in case I mistreat another UNO.

Replaced the chip I broke on an Arduino Uno