NodeMCU ESP8266 Pin Description Explained

Let's explore NodeMCU ESP8266 Pin Description. ESP8266 is an 32-bit wifi enabled microcontroller chip. There are total 30 Physical Pins in which 13-Digital GPIO Port Pins and 1-Analog Pin (A0). Also there are 7-Power Pins in which three 3.3V Pins and Four GND Pins. Also we'll explore pinout of ESP8266 including it's UART, I2C, SPI and other protocol related pins on microcontroller.

[graxxor]

Was given a bunch of 8266 chips... your tutorials are easy to follow and concise... Thank you so (From Japan).

[carlossaraiva]

Hello. Your video is inspiring and very well done. Perfect!. I intend to use the ESP8266 to keep my modem ON, since it always keeps stuck, also emitting a high freq sound. So I've decided to use this ESP8266 to "see" the LEDs on the modem. When the modem gets stuck, the yellow LED goes off. I intend to install a light sensor in front of the modem LED and it will inform to the ESP8266 to switch OFF and ON the modem, doing it through a 5V relay. I still do not know how to write the code since I'm new on programming, but I will try to find a friend to help me to do so.
I have all parts needed to built the ESP8266 controlled switch.

[valvici]

You danced around the main question ("why did we rename its pins?") for 10min but you didn't answer it untill the
end, when you gave us a fuzzy clue "it makes your life very easy when you write an Arduino program for NodeMCU".
The correct answer is: Because someone wanted to program NodeMCU (too) using the Arduino IDE and its standard
libraries, he had to obey Arduino's addressing/naming conventions hence he had to reMap its ins/outs accordingly .

[anokhautomation]

You didn't mentioned about the maximum input voltage to the vin pin of the Node MCU .

[charleena]

Thank you for your explanation. It helps me a lot👌🏽

[MrNams]

Can't we use D0 as input, i used and found that, initially it was high as i made it input pull up, when i made it low by momentary switch, it remained low? It took lot of time to find this bug.
Please explain about this.

[undrujyothi]

Why 8266?any specific reason for 8266 number

[electronic.knowledge]

I need help to make a dongle with esp8266, if you know a suitable site or can guide me, I need help!

[davidbristoll]

Hey, great video, thank you.
Have you (or anyone here) successfully used the MOSI, CS, MISO and SCLK pins succcessfully? I've used a tft display but you have to specify the pins in the library files. I don't know if there's a way to specify those pins so I've had to use the hardware SPI pins. this uses four GPIO pins that I could do with. Any help or further explanation would be really appreciated.

Liked and subscribed, thanks :)

[tonyblanco]

some wannabe teachers also dont like naming and so on ang so forth and et cetera...they say it is lazy...

[delbandung]

hello sir ... it is possible to add more pwm pin on nodemcu esp8266, for ex i want to control 6 pcs dc motor. thank you

[javierpagalo]

Just a quick question please. I need to connect a Servo signal and I have no other options but to connect to D0, D8 and D3. Could it cause problems?
Thanks for your video.

[NITian_DGP]

ground wala pin sclk me connect ho gya galti se , node mcu kharab ho gya usko kaise thik kare?

[GateElectronicsCom]

👍, but something I don't understand 😂

[TheJavaSync]

This board, esp8266 - Amica - it can't be programmed by Thonny IDE (Microphyton), right? After, flash firmware - I found msag error "device is busy.... "

[JOHNSMITH-ugmt]

So, when programming with IDE you need to use the (GPIO) number and not the number on the board? Example...D5 = 14?

[subhodeep]

can you tell me what the 4 edge hole is called and what is the purpose of its? I want to screw it in pcb instead of soldering it using that 4 holes.
is it feasible?
please reply

[addyb]

How to use it on l293D motor driver





make a vidio or give me a suggestion 🙂🙂

[TUKCIDOTech]

I have one question
Why my node mcu esp8266mod is geeting very hot and spark when i connect it with my laptop through usb cable?
Because of high voltage supply?
If yes then what should i do?
Plzz help me🙏

[siddharthsahu]

Bhiya ye hmose and sdd1 mosi me difference kya hai