Introduced with the Nextion Editor v 1.60.0 in early 2020 as a container for startup code, the program.s file allowed for the very first time to execute code before the startup page (which was always page 0) was loaded. Although we have been using it many times in our demo projects, and since every project compiled using Nextion Editor v 1.60.0 or newer makes use of it, even when you do not touch at it, I think that it's time to have a deeper look to get most out of it.

This is the third and last part of this article series where we wanted to have a deeper look on how to develop a Nextion project systematically, efficiently, and at a professional level. After we talked about gaming mathematics and win plans in the first part, and about animation and timing in the second part where I showed you already a raw proof of concept, it's now time to add a nice GUI and the credits handling, and to adapt and to assemble all the code snippets elaborated during the previous articles, and then, we'll be done!

Professional HMI project design Step 2: Animation and timing In my previous blog article, we started explaining all the steps required from the first idea at the beginning until assembling everything at the end to realize a Nextion HMI project systematically, and successfully. I choose the example of a slot

In the beginning, there is always an idea for a new project. The worst you can do at this very moment is to launch the Nextion editor and, if needed, the Arduino IDE, and start immediately coding... Before you do the first step, you have to know exactly where you want to go, says an old proverb. In this blog and the following over the next weeks, we'll look at how to define this "exactly where you want to go". The proceeding is quite similar to what you can see in cooking shows at the TV: They first think about what they'll cook, then they make sure that they have all required ingredients at hands, prepare and pre-process them, the famous "mise en place" before everything is added consecutively in an optimal order to the pot or pan, on the stove or in the oven, which is called the "assemblage"...

Since many questions are frequently asked - in the Nextion forums, in Nextion user groups on social media, and sometimes directly per email or PM, I decided to compile some of them in this Sunday Blog article.

First of all, I wish you a Happy Chinese New Year of the rabbit!