uniTFT & uniTFTDesigner

Question:

When I try to start uniTFTDesigner on an “empty”, newly installed Windows computer, I get the following error message: 0xC000007B.

Answer:

A fresh Windows installation is often still missing some runtime libraries. In this case, please install the latest “Microsoft Visual C++ Redistributable”. You can find it under: https://aka.ms/vs/17/release/vc_redist.x86.exe.

Question:

Hello !

I bought an EA QUICKuniTFT from you. There is a nice demo built in. How can I create my own screen pages?

Antwort:

You will need our uniTFTDesigner, which you can download here. The display is connected to the USB of a PC (Windows) and the larger displays of the EA uniTFT series (5“ to 10.1”) require an external power supply. The small displays (uniTFTs) are powered via the USB.

After installing the uniTFTDesigner tool, I recommend you watch this introductory video. You will also find many examples in uniTFTDesigner. We have created further tutorials for you in our uniTFT academy.

Question:

This is my setup: I have connected an Arduino to the serial slave port of your nice EA uniTFT module. The module displays some data that I send from the Arduino. I want to display the temperature, i.e. I need to display °. Unfortunately, it is not displayed when I send the command “#SSC 1, \”32.5 °C\“\n”.

Answer:

The Arduino library uses UTF-8 encoding for the extended ASCII character set. There are several ways to work around the problem. The simplest is to use the ASCII hex code for the degree symbol directly: “#SSC 1, \”32.5 \“$B0 \”C\“\n”.

Question:

Is it possible to implement control tasks with the display as a stand-alone?

Answer:

Yes, the display offers a wide range of inputs and outputs and can control external peripherals, calculate and save data. All measured values and information can be presented on the display in an appealing and clear manner (using digital values, pointers, diagrams, icons and animations). A good example of this is the EA DEMOPACK-CLIMA.

We have developed an intuitive Windows tool for the screen display: you can download the uniTFTDesigner here. The display is connected to the USB of a PC (Windows) and the larger displays of the EA uniTFT series (5" to 10.1") require an external power supply. The small displays (2" to 4.3": uniTFTs) are powered via the USB.

Question:

Is it possible to implement control tasks with the display as a stand-alone?

Answer:

The #SAP command places a string and monitors its change, making it the right command for your application.

However, there is a small pitfall here: even if several values are displayed, only the first entry is monitored. #SAP Obj-ID,..."%d, %d"; (R0+5), (R1/10) <LF> If R0 changes, the string is updated, but if (only) R1 changes, the string remains unchanged.

There are 2 possible solutions for this:

- Place two independent, automatic strings (#SAP)

- with the command #SAC. Analogous to the example: #SAC Obj-ID, (R0+R1)<LF>. This command triggers an update of the strings through a calculation. However, it does not change the parameters or values in R0 and R1.