Connecting Arduino Uno and ESP8266 WiFi Module
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- เผยแพร่เมื่อ 25 ธ.ค. 2020
- Explains the pin diagram of ESP 8266 and how to connect it to Arduino Uno then setup the EsP8266 driver library in Arduino IDE and start sending AT commands to ESP8266.
ESP8266 Driver Library arduino.esp8266.com/stable/pac...
Get the complete course Beginning Arduino Uno Programming in C++ on Udemy www.udemy.com/course/beginnin... - เพลง
Finally a solution that works. Thank you, sir!
Thank you so so much . you saved my career
THANK YOU A LOT.
This video failed to help as many others. It is so frustrating dealing with this ESP8266 module 01 with arduino.
Yep, it is cheap trash from china.
same here
had you found any solution??
@@AbuBakar-um5wc Did you upgrade your esp8266-esp01 to new firmware that supports AT command?
I had the same problem. Now I no longer have the problem.
My module worked when I set the baud to 115200. Try different speeds.
Greetings sir. What will be differ if I am using a Arduino nano
can i use arduino uno r3 in connecting with es8266 wifi module?
Hi i use this setup how i want to sent data using mqtt to adafruit?
can i use this method in arduino mega 2560?
Sir, In which wire can connect these two? and another question is, we can connect with app or sim card using esp8266? If connect which device connect sim card?
Which wires do you mean? And I haven't used the sim card before.
Can i use this setup if I only want to connect arduino into an internet to connect my arduino into a cloud server? or do you have any suggestions... Thank You.. I just really need answers...
yes, you can, there is an http client library for that
8266 tx & rx are 3.3v reff as per data sheet. Shouldn't we need to level shift tx & rx channel btw 8266 and uno?
Adding resistors should be a good idea for a production-ready system.
@@MustafaQamarudDin Where should the resistors be added exactly? I've seen many different wirings and at this point I might just not add any resistors at all.
@@hind7360 maybe at the TX, because if you upload a sketch, then the TX line is used to transmit data from the arduino to your ESP chip.
EDIT: I thought about it again, and I might be wrong, maybe the data is coming from the RX because the ESP8266 receives them from the Arduino...
Appreciate your reply, I finished that course and graduated and got a job lol don't really know when I'm gonna need this info next but thank you !!!@@ZorlacSkater
@@hind7360 Great, congratulations :)
I thought about it again, and I might be wrong, maybe the data is coming from the RX because the ESP8266 receives them from the Arduino...
sir how you connect that esp to my wifi ?
shouldn't the RX pin from ESP8266 connect with the TX pin of UNO and the TX pin from the ESP8266 connect with the RX of the UNO?
I may assume the same since semantically the receiver connects to a transmitter, but in this case, the semantic logic doesn't hold. I would however suggest trying it out since I have tried it out as well.
that's only needed when you need the two devices to talk to each other,
if you want to make the Arduino UNO as a bridge from the computer to the esp then connect RX to RX and TX to TX,however, don't forget to connect the NGD to RESET in that case in the Arduino
@@shalabyer What is NGD?
@@ZorlacSkater GND
Nice
In Tools --> Board: Why did you selected "Arduino Uno" instead of "Generic ESP8266 Module" ?
This is a very good question. The programmer is still Arduino and ESP is only used as a wireless extension. That's why everything is Arduino.
I need help please, I have a project that I should have an IoT system, and I chose an arduino measuring temperature of the room, and send the data from arduino to html page I have created using MQTT, can you help me please ?
I am sorry I can't get involved in coding projects, but I wish you good luck.
I have connected everything properly and have downloaded libraries but when I type AT command into the serial monitor nothing shows up can anyone please help me.
it usually happens when the circuit connections are not correct usually the RX/TX connection.
@@MustafaQamarudDin
RS --> TX
TX --> RX
right ?
Did you upgrade your esp8266-esp01 to new firmware that supports AT command?
I had the same problem. Now I no longer the problem.
Be cautious, this can destroy your board, because the Arduino uses 5 Volts for RX and TX and the ESP does only accept 3,3V! So it will destroy your chip if you don't reduce the volts first!
When I connect the CH_PD pin to 3.3V the the wifi module power indicator doesn't glow,why is that?,when I disconnect the CH_PD pin it glows and my Arduino as well gets disconnected when the CH_PD pin is connected to the vcc pin
I get the same problem
Wowo
Sir, we need to attach resistor also, to reduce the risk of short circuit???
I believe you should for a more durable setup. I keep it simple though in this video because I was more interested in showing the AT command set.
Sir will this last for 1 day..? Or shld we use the resistor..?
This is not tested for long usage, only prototype the idea for illustrative purposes.
How to connect ESP8266 to the firebase?
Rx to Rx and TX to Tx for testing the AT command. Now I want to make Arduino Wifi project. Should I make cross connection like Tx to Rx and Rx to TX?
im doing a similar project, have you found an answer to this?
@ggerfanclubpresident5285 I'm able to make ESP01 accept AT commands now.
Now I'm still searching on TH-cam tutorial for project. I'm not sure the wiring is the same if I need ESP01 to do more than testing AT commands. For example, I want ESP01 to host a webpage. When user click some buttons on webpage, ESP01 then sends command to Arduino UNO to control devices that connected to its GPIOs.
umm my serial monitor just prints out garbage on 9600 bauds and on any other baud level and my pins are double checked... any ideas?
Hey I found a fix for my problem, I had to reinstall the ESP code to the factory defaults, If anyone is like me and only have at their belt an arduino and an ESP you should try learning how to configure the arduino to work as a pass trough for the data in the edit mode for the ESP. After you do that you can find online some software that writes the factory default code on your COM port. I sadly am in a hurry and cant really provide links on how to do this neither found a video that does all of this at once, but atleast I hope I can shine a light on the path to fixing the ESP. Also there is a chance based on how or what was the condition of the ESP to just be damaged and rendered unusable
Hello sir,
Can I try OTA coding to Arduino Uno using esp 8266?
im not entirely sure of your question but hopefully this video will help: th-cam.com/video/gFK2EDNpIeM/w-d-xo.html
i follow all the steps but when i write at serial monitor the output not produce anything. Can you describe the problem?
The BAUD rate is usually the problem, try different BAUD and see if you get a response.
@@MustafaQamarudDin nothing happen sir
@@blackwhite5606 Are you sure of the wiring?
I am having the same problem here and everything is connected
@@cpatriciasousa unfortunately the only way to find out is to make sure the uno has an empty sketch and then try all different baudrates unless there is a firewall or similar on Windows. I have only ever used Linux Ubuntu.
sir, i have connected all the wire correcly and set the baudrate at 115200, but in serial monitor spamming "AT" (not responding), how can i solve that? please give me solution
same thing ! did you resolve it?
@@aomo5293 try 9600 baud
Did you upgrade your esp8266-esp01 to new firmware that supports AT command?
I had the same problem. Now I no longer the problem.
my ESP chip is getting hotter when I connect CH_pd to 3.3v can you tell what causing that ?
I am not sure why this happens, but it might be worth adding a cooler fan
I got some garbage data what should I do......and i am requesting to send me to exact hardware connection .
have you tried a different board?
No i am using Arduino Uno and same connection what u said u in video but I didn't get reply from esp82
why AT command no display at my arduino IDE?
Please review the circuit connections again and try different Baud rates.
Did you upgrade your esp8266-esp01 to new firmware that supports AT command?
I had the same problem. Now I no longer the problem.
@@jumbo999614 explain to me how
dealing with these modules is beyond frustrating. This didn't work for me. No response on the serial monitor.
Did you upgrade your esp8266-esp01 to new firmware that supports AT command?
I had the same problem. Now I no longer have the problem.
@@jumbo999614 How do you upgrade?
Does not work, I had to use 115200 for Baud
I LOVE YOU
Problème de comenecation esp8266 et téléphone
I am sorry I didn't understand your question. What's the problem again?
Hello, I am getting error that Timed out waiting for header
It's mostly because of a wrong connection
"on arduino"
Sir how you connected 3 pins to the 3.3 v without using breadboard ?? Give some suggestions sir
I am using a breadboard
u buy broo
Just solder 3 onto the same cable and connect it to 3,3 V
there is a device that let you temporarily connect wires together. Just insert wires into the hole and clamp it down.
If you don't have breadboard, you can use that.
But it will get complicated if there are more wires to connect.
So it's best to use breadboard.
Hello please I get ‘Failed to connect to esp8266 invalid head of packet (0x00)’ error .
Please what do I do ?
Connecting Ch_pd to power turns off the esp8266’s lights.
Please help !
I did your connection and it changed to ‘ Failed to connect to esp8266 invalid head of packet (0x7F)’
I changed tx-rx and now I have 0xFE error😢
⛔⛔Attention, do not blindly follow the pin out, this will destroy your ESP8266!! You can not connect the 5 volt levels from the Arduino directly to the ESP8266.
It looks to me like he said 3.3v, nothing about 5v
@@T.R.E.D.The issue is that if the Arduino uses a 5v logic level, the TX and RX pins will be 5v instead of 3.3v. It's a bit subtle.