SKU: 3134016894

SparkFun ATmega328 with Arduino Optiboot (Uno) Arduino, Other, Sparkfun Originals

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Description

SparkFun ATmega328 with Arduino Optiboot (Uno) Arduino, Other, Sparkfun OriginalsThe name says it all on this one. An ATmega328 in DIP package, pre loaded with the Arduino Optiboot (Uno 16MHz) Bootloader. This will allow you to use Arduino code in your custom embedded project without having to use an actual Arduino board. To get this chip working with Arduino IDE, you will need an external 16MHz crystal or resonator, a 5V supply, and a serial connection. If you are not comfortable doing this, we recommend purchasing the Arduino

The name says it all on this one. An ATmega328 in DIP package, pre-loaded with the Arduino Optiboot (Uno 16MHz) Bootloader. This will allow you to use Arduino code in your custom embedded project without having to use an actual Arduino board.

To get this chip working with Arduino IDE, you will need an external 16MHz crystal or resonator, a 5V supply, and a serial connection. If you are not comfortable doing this, we recommend purchasing the Arduino Uno board that has all of these built into the board.

Atmel’s ATMega328 8-Bit Processor in 28 pin DIP package. It’s like the ATmega168, with double the flash space. 32K of program space. 23 I/O lines, 6 of which are channels for the 10-bit ADC. Runs up to 20MHz with external crystal. Package can be programmed in circuit. 1.8V to 5V operating voltage!

Note: This contains the bootloader used on the Arduino Uno, with small modifications to work more reliably with different serial connection options (mainly the FTDI). Check the link below for more information.

Documents:

Replaces:DEV-09217

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SKU: 3134016894

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Thu Vien
Massapequa, US
★★★★★ 5
Must have for a hot summer!
My mom saw my aunt using it and was impressed, so she bought it for herself and my sister-in-law. They both love how gentle it feels on the skin and that it’s organic and effective.
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Reviewed in the United States on August 12, 2025
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ilovebooks
Natrona Heights, US
★★★★★ 3
Too smelly
I love the idea of a clear spray sunscreen but my daughter says it stings her eyes and the smell gives me an instant headache. I really wanna like this but it’s a no go for me
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Reviewed in the United States on August 20, 2025
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kai
New York, US
★★★★★ 5
Great for sensitive skin
This was great to take on vacation. I went to Cancun and used this on my face. Never got burned. I have super sensitive skin and this didn’t cause any reactions. I’m also sensitive to smells and I don’t notice anything with this product. Will purchase again.
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Reviewed in the United States on August 6, 2025
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Shaunda Cress
Grantham, US
★★★★★ 1
Buyer beware!
Awful! I sprayed my face with it and immediately felt my skin burning. I opened the bottle and noticed all that was in it was a yellowish fluid that smelled like straight rubbing alcohol. My face still has marks on it days later from whatever the substance was. I have used this brand before, and never experienced anything like this. The product was either years past expiration, or liquid was replaced with some kind of chemical.
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Reviewed in the United States on April 22, 2025
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Kari M Rollins
Dallas, US
★★★★★ 5
The perfect sunscreen face-mist
Light, non-greasy sunscreen spray to help keep your face protected throughout an active day in the sun.
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Reviewed in the United States on August 20, 2025

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