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Displays for information visualization in IoT

Displays for information visualization in IoT

IoT is a network connecting wired or wireless devices characterized by autonomous (not requiring human involvement) operation to acquire, share, process data or interact with the environment under the influence of such data. It can be assumed that the use of IoT devices is possible in almost every area of life – currently such equipment is used, among others. in medicine, industry, transportation or agriculture (not forgetting their “typical” use within smart buildings).

Parameters of WEO012864G and WF40ESWAA6MNN0# models.

The WEO012864G series models from Winstar are graphic OLED displays with a diagonal of 2.42 inches and a resolution of 128×64 pixels based on the COG structure. They communicate via 6800, 8080, SPI and I2C interfaces. These ultra-thin displays feature low power consumption, making them ideal for mobile devices, meters, smart device networks, IoT, etc. Among the versions of this display, you can also find WEO012864GLPP3D00000, which features a high-quality capacitive touch module, making it a very convenient solution for controlling Internet of Things devices.

The WF40ESWAA6MNN0# is a 4-inch LCD-TFT with a resolution of 480×480 pixels, also from Winstar. This unit uses Edge LED backlighting and an IPS matrix. It features a brightness of 1,000 cd/m², a contrast ratio of 800:1 and an operating temperature range of -30°C to 70°C.

The table shows the most important parameters of the displays:

parameterWEO012864G series Model WF40ESWAA6MNN0#
resolution128 x 64 px480 x 480 px
active area55.01 x 27.49 mm71,856 x 70,176 mm
clarity90 cd/m21000 cd/m2
angles of observation89°/89°/89°/89°80°/80°/80°/80°
interface6800, 8080, SPI, I2CMIPI
module dimensions60.5 × 37 × 2.15 mm78.8 x 82.95 x 4.77 mm.
operating temperature range-20~70°C-30~80°C

Examples of applications

Smart buildings

Focusing on convenience, we are increasingly placing IoT devices in the space of our homes. These include the rather popular cleaning robots. Heating management systems are also noteworthy solutions – they make it possible to regulate the temperature level in individual rooms. Often, panels are used to set appropriate parameters, such as heaters, which are expected to be not only ergonomic, but also aesthetically pleasing, making LCD-TFTs and striking OLEDs a popular type of display implemented in such applications. It is worth mentioning that there are almost off-the-shelf modules available on the market, including pre-bundled solutions with touch panels.


Examples of IoT equipment used in industry include. portable measuring devices – now the information they collect can be sent to central databases in real time. These are applications that can be categorized as “demanding” – if they are designed to work in production halls, they can be exposed to undesirable factors, such as interference, shock and vibration, low and high temperatures, as well as the risk of dust or flooding.

New OLED with integrated capacitive touch

This type of equipment will work well, among others. single-color OLED displays, which provide excellent readability of the presented content (both in light and darkness, regardless of the direction of observation) in extreme temperatures (their operating range is defined even in the range from -40 to 80°C). Worth noting are the WEO012864G series models from Winstar – these are 2.42-inch OLEDs available in four color options: white, yellow, blue and green.

In the event that the device screen will be used to present, for example, diagrams or charts, OLED displays can be replaced by LCD-TFT displays with appropriately selected parameters, paying attention primarily to brightness (at least 1000 cd/m²), viewing angles (full) and operating temperature range (at least -20~70°C). This characteristic includes. 4-inch model WF40ESWAA6MNN0# from Winstar (1000 cd/m², 80°/80°/80°/80°/80°, -30~80°C, supported via MIPI interface).


For additional protection against dust or water, consider placing the module in a suitably sealed enclosure, such as one labeled IP 65, which – according to the PN-EN 60529 standard – provides total dust-proof, as well as partial waterproofing.

The solutions presented are only examples. Nothing prevents you from “experimenting” with different solutions in the case of selected applications. In such cases, it is definitely worth consulting specialists first, with whom you can work out all the details of the display in the IoT device you are designing.


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