Wemos D1 Mini I2c Scanner

Da das nicht besonders viel ist.

Wemos d1 mini i2c scanner. Include wire h void setup wire. Then you see three slaves. A bh1750 luminosity sensor an oled display and a bme280 environment sensor temperature pressure and humidity at the left you may notice two pull up s resistors. You do not need any additional hardware to make the wifi scanner.

Damit ihr mehrere bauteile über einen einzigen i2c bus ansprechen könnt muss jedes der bauteile eine eigene i2c adresse besitzen. Remember the backpack and lcd connections are already made for you. Wemos mini d1 default i2c spi pins i2c i2c can be used to connect up to 127 nodes via a bus that only requires two data wires known as sda and scl. This is a basic example which will display via the serial monitor the address of any devices connected to your wemos.

You can use the esp8266e which sits on the wemos d1 mini as wifi scanner to check which channel to use for your own home wifi setup. The wemos is the master of the i c bus. Hier sollte eine beschreibung angezeigt werden diese seite lässt dies jedoch nicht zu. Println n i2c scanner void loop byte error address.

Now my example below required the i2c address to be changed to. You will need an updated i2c lcd library the original one i couldn t get to work but this one does seem to work liquidcrystal i2c master. You will need to import this into the ide as usual. At the right side you see a wemos d1 mini our esp with espeasy firmware.

Genau genommen sogar auf 8 bis 127 da die adressen 0 bis 7 reserviert sind. With the wifi scanner you can check which wifi channels are mostly used in your neighborhood and with what strength they are.