#ARDUINO MAKE VISUAL TFT SOFTWARE#
In order for this blog to be rebuilt by you, you will need the following software and libraries: Microcontroller board with USB cable, compatible with Arduino Uno R3Ġ.96 inch OLED I2C display 128 x 64 pixels for Arduino and Raspberry PiĠ.91 inch OLED I2C display 128 x 32 pixels for Arduino and Raspberry PiĮSP32 NodeMCU Module WLAN WiFi Development Board with CP2102 (Successor model to ESP8266)ġ.8 inch SPI TFT display 128 x 160 pixels for Arduino and Raspberry Piįurther complete packages, such as the AZ-Touch wall housing, are also not considered here, even if the installed TFT display can theoretically be operated without the board from a matching Micro Controller. Many components, however, are identical to the control or the libraries used, and require only a minimal adjustment in the configuration. The components from Table 2 are used for this blog as reference hardware, but do not cover the complete offer of AZ-Delivery. (Only for TFT) How high is the effort to use the Touch function?.How fast can a display be integrated into the software to display text?.Two factors are therefore to be considered in this blog: ***) The display itself uses only 3.3V, Touch needs a separate voltageįar more important than the Pros and Contras is, of course, how quickly these displays can be integrated into a project. **) As a reference, the AZ-Touch wall housing with 2.8 " touchscreen *) Available size at AZ-Delivery, Booth 02.2021 The color of the item to be displayed can be determined Table 1 is to give a first impression of the differences of an OLED or TFT displays. There is not that a perfect display, but one has to deal with the one or the other compromise. This leads to advantages and disadvantages. Pro and Contra OLED/TFTĪs described in the above, the technique behind the two display types is different. However, the readability strongly depends on the contrast, and since the OLEDs have "the nose at the front". This does not mean that OLED is now brighter than a TFT, because in fact the brightness of TFTs due to the backlight is significantly better than with OLEDs. In direct comparison, a TFT "swallows" almost 90% of the backlight. backlight, they are in part significantly better than a TFT display. Precisely because OLED displays do not need a "backlight", i.e. So this prejudice remains on the track in today's time. That may have voted in the past, but in comparison to 20 years ago, the technique has improved insanely. Just OLED still has the reputation that these should be light-weak, short-lived and unreliable. A voltage is applied to the liquid crystals so that the liquid crystals change their orientation and thus the transmittance of light changes. The latter could be known to you, since the technology behind TFT is the further development of the LCD technology. OLED uses materials from organic chemistry and TFT is made up of liquid crystals. TFT is the abbreviation for T- FIlm TTransistor, to German thin-film transistor. OLED is the abbreviation for organic IIght eMitting diode, to German organic light-emitting diode. Closer to I2CĪnd SPI and you can read the correct wiring on Wikipedia. The data exchange is carried out by two to four lines, whereby the correct wiring has to be taken care of depending on the bus system. The basic principle for both bus systems is that you have a fixed master, usually a micro controller, and the displays are integrated as a slave.
#ARDUINO MAKE VISUAL TFT SERIAL#
On the one hand I2C, which stands for Inter-Integrated Circuit, and SPI, which stands for Serial Peripheral Interface. However, there are only two different ways to control the displays. If you then filter for OLED or TFT, the selection will be lower, but still the selection of displays is still quite large. If you look at the AZ-Delivery assortment, you can quickly find out that there are many different display types and display sizes, see. These questions will be answered in this blog post. Where is the difference between the two displays? And when do you prefer to use an OLED display for your project and when to use a TFT display? The most common displays are so-called OLED or TFT displays. Be it through a small LED or a small display, which provides us with the status or the current information. Many projects that are presented in our blog posts provide visual feedback to the user.
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