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Now that we know our displays i2c address we can open the example sketch in our adafruit ssd1306 library.
Arduino i2c beispiel. Oled i2c display interfacing with arduino. The arduino due has two i2c twi interfaces sda1 and scl1 are near to the aref pin and the additional one is on pins 20 and 21. Learn how to use an lcd with i2c asap.
Accepted values are 100000 standard mode and 400000 fast mode. The value in hertz of desired communication clock. There are also other oled displays that communicate using spi communication.
In this tutorial i will be using the liquidcrystal i2c library. Schauen wir uns i2c im arduino mit beispielen an. The latest version of this library can be found here on github or click the download button below.
This function modifies the clock frequency for i2c communication. In your arduino ide check your examples menu and locate the 128 64 i2c sketch found under adafruit ssd1306 as shown in the picture. Not gonna bore you with details but just watch the video to learn how to hook up basic generic 16x2 liquid crystal display i2c bus module version with an arduino.
The unique device address we need this in hexadecimal and the number of bytes of data to accept from the device. There are models that come with an extra reset pin. This library has many built in functions that make programming the lcd quite easy.
Zwei funktionierende programmierbare arduino uno micro nano etc. Because the oled display uses i2c communication protocol wiring is very simple. Mit gleicher arbeitsspannung also entweder 5v oder 3 3v typen ein paar drähte.
This library allows you to communicate with i2c twi devices. A liquid crystal display is a form of visual display used in electronic devices in which a layer of a liquid crystal is sandwiched between two transparent electrodes. The model we re using here has only four pins and communicates with the arduino using i2c communication protocol.
Change the address of the display to whatever the scanner told you in my case 3x0c. If an experimental platform is used the ground and five 5 volts dc headers can connect through dupont cables to the power rails on the experimental platform so that. Installing the liquidcrystal i2c arduino library.
By using i2c only four headers on the arduino uno esp32 or other microcontroller need be used for these connections. If you review the table above from the ds1307 data sheet note that there is eight registers or bytes of. Dazu brauchen wir folgende zutaten.
Aus arduino sicht kommt hinzu. Receiving data at this point is a two stage process. Arduino oled i2c display in this tutorial you will learn how to use the ssd1306 or sh1106 0 96 inch oled i2c 128 64 display module with arduino in this tutorial i will cover the extreme basics like for example.
Der master und die slaves können maximal 32 bytes verschicken. On the arduino boards with the r3 layout 1 0 pinout the sda data line and scl clock line are on the pin headers close to the aref pin.
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