Interfacing the WaveShare LCD1602-RGB screen

By martinm, in Programming, january 12,2024.

This week, we're testing a small LCD screen manufactured by Waveshare which has the specificity of having an I2C interface. We don't have too many doubts about the possibility of interfacing it with a Yocto-I2C, but we expect that it won't be trivial insofar as display controllers like being difficult, and generally demand a proper initialization before agreeing to operate.

Displaying solar production on a YoctoDisplay

By seb, in Programming, december 15,2023.

This week, we created a small program that displays the current production of the building's photovoltaic panels on a Yocto-MaxiDisplay. To do this, we wrote a small Python script that retrieves production information from the building's Envoy S Metered gateway.

Yoctopuce and IPv6

By seb, in Programming and Misc, november 03,2023.

This week, we explain how to use VirtualHub 2.0 and the 2.0 libraries in a network infrastructure running on IPv6.

Migrating from USB to an Internet connection

By martinm, in Programming and For the beginners, october 20,2023.

Yoctopuce sells USB modules designed to operate when they are directly plugged into a USB port on your computer. But it is also possible to operate your Yoctopuce modules remotely via a network connection, using a YoctoHub for example. The Yoctopuce API was designed to switch from one mode to the other in a trivial way, so much so that we never thought to explain the principle clearly. An oversight we're now putting right.

Web page, Yocto-Visualization, and actuators (continued)

By martinm, in Programming, september 08,2023.

Three weeks ago, we showed you how to integrate code on a web page that manages Yoctopuce actuators while using Yocto-Visualization (for web). But there was one limitation: we couldn't use the DeviceArrival and DeviceRemoval callbacks because they were already used by Yocto-Visualization (for web), so the code was a bit rickety when it came to checking whether the actuators concerned were connected or not. As this was a bit of a problem for us, we've slightly improved Yocto-Visualization (for web)...