![]() At first, let’s connect the power of both the reader and the display.īe careful, the RFID reader must be connected to the 3.3V output of the Arduino Uno or it will be destroyed. The connection with the Arduino Uno board is very simple. ![]() I have prepared a detailed tutorial on how to use this display which I have attached to this Instructable. It is the easiest way to add a display to your Arduino project. If you are new to Arduino and you want an inexpensive and easy to use display to use with your project, start with display. You only need to connect two wires except for Vcc and GND. In addition to that, the display uses the I2C interface, so the connection with Arduino is incredibly easy. Adafruit has developed a very nice library for this display. This OLED display is very bright, and it has a great library support. The upper part of the screen can only display yellow, the lower part only blue. One of them is monochrome, and the other one like the one I use can display two colors, yellow and blue. The display has a resolution of 128×64 pixels and it is tiny in size. The power consumption of this display is around 10-20 mA and it depends on how many pixels are lit. ![]() It is an OLED display and that means that it has a low power consumption. This is a very nice display to use with Arduino.
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