This here is your standard A to micro-B USB cable, for USB 1.1 or 2.0. Perfect for connecting any development board, microcontroller, mobile phone, or other device to your computer or charger.
“Standard?” you might say… nothing gets past the astute eye of an Adafruit customer! Why yes, that is an LCD display embedded in the cable!
This is basically like a USB cable mixed with a Charger Doctor. Plug it into a USB port and it will let you know the voltage on the USB power pins. Once a device is plugged in, it will display the current draw in milliamps. You can use it for up to 2A of current.
You can use this to monitor your project or as a current meter. We thought they could be neat to use for monitoring current when powering your Raspberry Pi and other micro B USB devices. The only down side is that once the device starts charging, the display will not show the voltage anymore, just the current draw.
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Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.