USB + Serial Backpack Kit with 16x2 RGB backlight positive LCD - Black on RGB

USB + Serial Backpack Kit with 16x2 RGB backlight positive LCD - Black on RGB

Marsoni

M251S

$36.00

Get it in 3 business days with 1 day shipping. Friday, May 29

USB + Serial Backpack Kit with 16x2 RGB backlight positive LCD - Black on RGBThe Adafruit USB or TTL serial backpack makes adding a character display to your project or computer simple and efficient. This custom designed PCB attaches to the back of a standard 16x2 or 20x4 character LCD, offering a range of functions like printing text, automatic scrolling, adjusting the backlight, controlling contrast, creating custom characters, and toggling the cursor. It also supports RGB backlight LCDs, providing full 8 bit PWM control

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The coffee bean grinder is ease to use with mostly smooth consistency. It's regularly medium sized with mid noise precision. I suppose you can ideally take this puppy with you camping if you have some extra room in your cargo. All in all, it's consistently done it's job which is grinding them beansss!

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Reviewed in the United States on May 8, 2026

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Sam B

Omaha, US

★★★★★ 5

Simple grinder

Great alternative to more expensive grinders, adjustable, could be a bit easier to use but the price is very fair.

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Reviewed in the United States on May 3, 2026

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Renotta

Waukegan, US

★★★★★ 3

One pot grinder

Unit holds enough grounds to make one pot at a time. I was expecting a bit larger. But it works good enough for the mis-bought beans instead of grounds.

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Reviewed in the United States on December 23, 2025

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Savanna

Los Angeles, US

★★★★★ 5

Good grinder

I’ve been enjoying this grinder. It’s easy to use. I’ve been using it every day and I have run into any issues. This is a great deal and would definitely recommend it.

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Reviewed in the United States on March 28, 2026

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Angi

New York, US

★★★★★ 5

Good for a manual grinder

Good for grinding pumpkin seeds etc.

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Reviewed in the United States on April 2, 2026