USB Sensors and Actuators

Yoctopuce designs, manufactures and sells USB devices to let your computer sit in the real world. Our USB modules are tiny, easy to install and easy to drive programmatically. Among them you will find:

Application examples, hints and tutorials

How to Display a QR Code

QR codes are often used for advertising purposes to share website addresses on posters or flyers. They can also convey other types of information, such as Wi-Fi settings, a vCard, or a GPS location. If you can generate them dynamically, you could even create a time-limited code, or a proof-of-time stamp... and that's where it gets really interesting.

A small and very unobtrusive display

For an in-house project, we needed a small display that we could read from a few meters away, even in the dark, but that would remain unobtrusive when not in use. We were therefore very tempted by these displays that remain invisible when turned off, which is why we decided to use a 15x7 CharliePlex LED Matrix Display FeatherWing from Adafruit, driven by a Yocto-I2C-C, all enclosed in a 3D-printed plastic case.