pH probe calibration

By mvuilleu, in Measures and New stuff, february 09,2024.

Ten years ago, we published a post showing how to use the Yocto-milliVolt-Rx-BNC with a pH probe to digitally extract measures. Of course, the 2014 module still works today, but in the meantime we've released a few tools which make using it even easier. So here's an update to this post...

Interfacing the LCD1602-RGB display, bonus

By martinm, in Programming, february 02,2024.

Having successfully operated WaveShare's LCD1602-RGB display with a Yocto-I2C, we wondered if we could use the Yocto-I2C's built-in job system to read values from an I2C sensor and display them directly on the display without the intervention of a USB host. In theory, it's feasible; in practice, it's rather complicated, but interesting.

Installing VirtualHub on Home Assistant Operating System

By seb january 26,2024.

In a previous post, we explained how to integrate Yoctopuce modules into Home Assistant using the MQTT protocol. This week, we show you how to install our VirtualHub application on Home Assistant.

Debugging serial communication scripts

By mvuilleu, in New stuff, january 19,2024.

An important advantage of Yoctopuce serial interfaces, compared with RS-232, RS-485 or TTL serial interfaces found elsewhere, is the ability to define stand-alone jobs in the module, for example to query a sensor. This week, we're releasing new firmware for these modules, which facilitates debugging of these scripts, by enabling their progress to be traced in parallel with message exchanges.

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.