The difficulty of writing device drivers is one of the major barriers to the adoption of the USB. A typical embedded-device engineer who can comfortably design embedded systems all day long can get ...

The Matrix is a USB bill validator, sometimes known as a note reader or bill acceptor, made by Validation Technologies International. The bundled software was developed for Microsoft Windows, but ...

Sometimes you have this project idea in your mind that seems so simple and straightforward, and which feels just so right that you have to roll with it. Then, years later you stumble across the sad ...

I'm thinking of making a USB volume controller dongly thing for one of my computers that lacks volume buttons. I've done a few other USB HID projects before (Gamecube & PS2 controller adapters, and a ...

Designing an application with universal serial bus (USB) communications enables a system to be able to communicate with a wide variety of USB host devices and provides a convenient power option ...

The Human Interface Device (HID) class specification allows designers to create USB-based devices and applications without the need for custom driver development. Their high levels of on-chip ...

I am looking to see what’s available as a read-only NFC card reader, that presents itself as a USB HID device? We are only interested in reading the card’s UID as keyboard input. I am looking ...

MicroPython is a wonderful Python interpreter that runs on many higher-end microcontrollers, from ESP8266 to STM32 to the RP2040. MicroPython lets you build devices quickly, and its latest release, ...