Tinkercad is a web-based 3D design application. It's free and easy to use. I've been using it for years to design models for 3D printing. What I didn't know until recently is that Tinkercad also has a circuit design and simulation app, including an Arduino simulator. You can program the simulated Arduino with text or with Scratch-like drag-and-drop blocks. Here's the getting started page.
If you have access to a 3D printer, you can make a belt. No assembly required! <em>Image: YouTube</em>
Here’s a hand-crank coin-sorting machine made from plywood. The guy who made it used conventional tools, but it looks perfect for a laser cutter. Image: YouTube
The Raspberry Pi Zero W is an itty-bitty wireless Linux computer. This kit ( on Amazon) contains almost everything you need to run it, including a case, power supply, and adapter cables. You need to supply your own microSD card, HDMI monitor, keyboard and mouse. I’m working on a project that uses a Pi Zero, […]
So you’ve visited the Kennedy Space Center every year. You’ve watched “The Right Stuff” for the 95th time. There must be something to do while you’re waiting to join Space Force for the next manned mission to Mars or the moon. Here’s a combo that should raise a salute from any fan of space or […]
Looking for a new tablet? If you haven’t upgraded in a while, it might be time to check out the latest iPad Pro for two very good reasons. First, the 2018 model is a real workhorse. The 12X Bionic chip processor means it can handle any task you set out for it, and still have […]
You want wireless earbuds to make an impact on your mood and workout, not the environment. If that’s the case, we’ve got a new contender for AirPod market share: Brio Phantom X7 True Wireless Earbuds. The features on these tiny, comfortable buds are impressive even without the environmental angle. Their Bluetooth 5.0 connectivity is good […]