How to Display a QR Code

By mvuilleu, in Programming and New stuff, october 23,2026.

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.

Yocto-FontEditor: A new font editor

By martinm, in New stuff, september 18,2026.

Quite early on in the development of the Yocto-Display-ePaper-C, we realized that the four fonts 8x8, small, medium, and large, which are included in the OLED display firmware, might not be sufficient due to the high resolution of the ePaper displays compatible with this new module. Rather than adding more arbitrarily chosen fonts and taking up space in the module's firmware, we decided to rewrite a new font editor from scratch to make it more practical and easier to use than the original editor, which no one seems to know exists....

New: The Yocto-VOC-V4-C

By gabrielandr, in New stuff and Measures, september 04,2026.

Welcome to the Yocto-VOC-V4-C, the successor to the Yocto-VOC-V3. Following the end of production of the Sensirion SGP30 sensor, we decided to base the USB Type-C version of the volatile organic compound ( VOC ) sensor on a new sensor, the ENS161 from Sciosense. As always, the Yocto-VOC-V4-C retains the same format and software interface as its predecessor. Existing applications therefore continue to work without modification. But as a little bonus, the Yocto-VOC-V4-C offers a new air quality index.

New! The Yocto-Display-ePaper-C

By martinm, in New stuff, august 21,2026.

This week, Yoctopuce is introducing a new module that's been close to our hearts for quite some time. It's a small driver for ePaper displays, with all the little perks you'd expect from a Yoctopuce display. Let's take a closer look, shall we?

New: Yocto-RFID-15693-C and Yocto-MaxiDisplay-C

By martinm, in New stuff, june 06,2026.

This week, Yoctopuce is announcing the last two modules to be upgraded to USB-C connectivity: the Yocto-RFID-15693-C and the Yocto-MaxiDisplay-C. Let's take a closer look...