- #CONVERT MAC ADDRESS 48 BIT PYTHON HOW TO#
- #CONVERT MAC ADDRESS 48 BIT PYTHON SERIAL NUMBER#
- #CONVERT MAC ADDRESS 48 BIT PYTHON SERIAL#
They are likely Strings indeed ut don’t post snippets ( Snippets R Us!)
#CONVERT MAC ADDRESS 48 BIT PYTHON HOW TO#
I found one possible lead with this code ( ) but I don't understand it well enough to know how to adjust it to input ESP.getEfuseMac() and get out a string called efuseMac.Īny help or pointers in the right direction would be appreciated. Unless someone can suggest another workaround, I think I need efuseMac and wifiMac to be strings as well. I'm no expert, but I believe this is concatenating a bunch of string to form the post. String payloadMagicMirror = clientHTTPMagicMirror.getString() The code for sending the data is: int returnCodeMagicMirror = clientHTTPMagicMirror.POST( postAttributeFirmware + firmwareCode + postAttributeEfuseMac + efuseMac + postAttributeWiFiMac + wifiMac + postAttributeSensorID + sensorID + postEnd ) My Arduino (technically an ESP32) sends some json data to my MagicMirror using HTTP POST. I'm pretty sure that someone is going to say, "Why are you doing this? You shouldn't use a string." So here's my situation: It should indicate Espressif, as shown i figure 2.įigure 2 – Result of vendor lookup from the ESP8266 MAC.My basic question is how can I convert the units MAC address (from ESP.getEfuseMac() and/or WiFi.macAddress() ) into a string? Just to confirm what was explained in the introduction section, we can check if the first 24 bits of the MAC correspond to the manufacturer of the ESP8266, which is Espressif. You should get something similar to figure 1.įigure 1 – Output of the function to get the MAC of the ESP8266. To test the code, just upload it to the ESP8266 and open the Arduino IDE console. You can check the full working code bellow, which also includes the empty loop function. To get the MAC dress of the ESP8266, we simply call the macAdress method on the WiFi global variable, which will return the MAC address in the hexadecimal format mentioned early.
#CONVERT MAC ADDRESS 48 BIT PYTHON SERIAL#
Then, in our setup function, we open the serial port, so we can print the output of our program. Since we only want to print the MAC, we will do all the coding on the setup function and leave the main loop empty.įirst, we include the ESP8266WiFi library, which we typically use to access all the functionality needed for the ESP8266 to connect to a WiFi network. The code for this tutorial is very simple, since we already have a function to get the MAC of the ESP8266. The tests were performed using a NodeMCU board, a very cheap and easy to use ESP8266 board. You can read more about MAC addresses here.
#CONVERT MAC ADDRESS 48 BIT PYTHON SERIAL NUMBER#
The first 24 bits of the MAC are the identifier number of the manufacturer and the second 24 bits are a serial number assigned by the manufacturer. In terms of format, MAC addresses are 48-bit in length and typically represented in hexadecimal format, with each two hexadecimal digits separated by “:”. Taking in consideration the OSI model, MAC addressing works at a layer (layer 2) lower than IP addressing (layer 3). So, MAC addresses are hardware addresses that uniquely identify a network adapter. But, just as a quick explanation, the MAC address is a unique value associated with a network adapter. The objective of this short post is to explain how to get the MAC address of the ESP8266.Įxplaining in detail what is a MAC address is outside of the scope of this post.