Heading off-grid? These USB lights and fans are compact, reliable, and perfect for camping nights when heat and darkness aren't part of the plan.

No more hunting for batteries in a pinch—or in the dark. Check out our picks for the best USB-charged flashlights for 2025.

I just mounted the power plug and USB cabel to a back panel. But my question is: How can I splice into the USB cable to use a blue led to light up whenever there is activity?

Enter the USB LED Otter. This small square of PCB lets you plug an LED strip directly into a USB port.

I have a Vinsic VSPB304 powerbank which has three outputs - two USB-A (rated at 2.4A each) and one USB-C (rated at 3A). All three can be used at once but the maximum combined output is 5A. I want ...

First, it has a USB Type-C port rather than micro USB. Second, it has a 4-pin I2C connector instead of a 3-pin debug connector. And third, the BPI-Pico-RP2040 has an RGB LED light.