Rimstar has another DIY how-to guide, this time for turning a USB cable (especially those male Type-B cables that you might have an abundance of) into a simple 5V power cable. The video includes showing how to conduct a simple continuity test that’s a great example of learning how the wires inside a cable relate to the pins inside the plug (this how-to knowledge can be broadly applied to many cable types).
And if that excites you you might also be interested in the USB-A male and female blocks recently added to the store:
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.