TX packets:364103 errors:0 dropped:0 overruns:0 carrier:0 RX packets:436968 errors:0 dropped:0 overruns:0 frame:0 TX packets:83 errors:0 dropped:0 overruns:0 carrier:0 RX packets:83 errors:0 dropped:0 overruns:0 frame:0 TX packets:48515 errors:0 dropped:0 overruns:0 carrier:0 RX packets:54071 errors:1 dropped:0 overruns:0 frame:0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 In the output below, the MAC address is the hardware address (HWaddr), as highlighted below. After running 'ifconfig' from the command line, you get output similar to the example below. If you are running Linux and Unix or a variant, you can determine the MAC address or hardware address using the ifconfig command. This command lists all your computer adapters, and the MAC address is the Physical address in this list (shown below).Ĭonnection-specific DNS Suffix.How to get to an MS-DOS prompt or Windows command line.

Finding the MAC from MS-DOS or Windows command line

I2C address of our attached device is 0x3F.You can also follow the steps below to view the MAC address from the command line. The output of this sketch will be as shown below. Open serial monitor after uploading the code. Robo India Tutorial // Digital Input and Output on LED // Hardware: NodeMCU // Ref- Nick Gammon // I2C Scanner #include void setup ( ) 4. You may download this code (Arduino Sketch) from here. Here is the code to run this circuit on NodeMCU. Once the circuit part is done, NodeMCU is needed to be programmed. Here in the example an i2c LCD backpack is used to complete this tutorial, though this tutorial is general to get address of any i2c device connected to NodeMCU. It also scans the address of each i2c device attached to the NodeMCU.

This tutorial explains how to find attached i2c devices with NodeMCU. The information is sent on these two lines using what is called the I2C communication protocol. One of those wires is the DATA line called the SDA, whereas the other is the CLOCK line called the SCL. Introduction:ĢC bus is a means of connecting several peripheral input and output devices that support I2C on two wires. This tutorial of Robo India explains how to get address of i2c device connected to a NodeMCU using Arduino IDE.

How to check mac address nodemcu