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Amazon Prime Day 2021 deals: Robots, Arduino, Raspberry Pi and 3D printers

Here are the very best robot, Raspberry Pi, Arduino, and electronic kit deals on Amazon for Prime Day 2021.

Welcome to a very fun hodgepodge of geek goodies on sale at Amazon for Prime Day. We cover a bunch of deals in this guide, including some good Raspberry Pi kit discounts and a really good price on some 3D printers.

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Look, we'll admit that the most desirable robot gadgets aren't on this list because they're not on sale for Prime Day 2021. But if you want to do a little virtual window shopping and come home with something you can put together and tinker with, we have a great little selection.

Oh, and if you're just getting started with Raspberry Pi making, here's a quick intro.

Listings are sparse heading into the overnight, but we have more coming Tuesday morning, so check back regularly. And, besides, the Ender 3 Pro we have found on offer is a 3D printer we regularly feel comfortable recommending. Nearly half off makes this a rockin' deal.

Creality Ender 3 Pro 3D Printer

Save 48%


This is a Lightning Deal that begins on Tuesday 6/22/21 at 4:10AM PDT and ends on Tuesday 6/22/21 at 10:10AM PDT.

The Ender 3 is a solid, popular 3D printer. At under $200 and with a flexible build surface, it's worth snapping up. If you've been wanting a budget 3D printer, now might be the time to hit the buy button.

$178 at Amazon