How to Install, Troubleshoot and Fix COM Port Drivers for Arduino Boards - FTDI and CH340 Series

[@hdhdhdhhshdhd4376]

Arduino code:- void loop() float Humidity = dht.readHumidity(); float temperature = dht.readTemperature(); intBodyTemperature=sensors.getTempCByIndex(0); int gas_value= analogRead (gas); // int myBPM- pulseSensor.getBeatsPerMinute(); sensors.requestTemperatures (); delay(1000); Serial.print ("Humidity: "); Serial.print (Humidity); Serial.print ("\t"); Serial.print ("Temperature") ; Serial.print (temperature); Serial.println("C"); Serial.println(String ("Body Temp") +BodyTemperature); Serial. print ln(gas_value) ;

[@SMEDehradun]

👏

[@lyndon123]

Awesome sir awesome, my Arduino got connected to the laptop 😎

[@SMEDehradun]

🙏🙏🙏🙏

[@Kiraraa-rb5if]

Mine only says "pre-installed in advance", how to fix this?

[@SMEDehradun]

Installed the com port driver than then restart you system and then try again. Try to update the driver with latest one.

[@harishgovind1063]

Then also I'm not getting

[@SMEDehradun]

If you follow all options as shown in the video, then Another solution is to update your operating system. It may fix this issue.

[@gurnoorsinghwadhwa3668]

even after connecting the Arduino board and checking the USB cable, i am not able to see the port option in the device manager

[@SMEDehradun]

You will get all options to install com port in your computer in the video. And still you are not getting the com port, then you need to check your board’s hardware.

[@mohanlalnewmail5047]

I didn't found port option😢😢😢😢

[@SMEDehradun]

Have you Try to change the cable.

[@sreenivasapai4576]

i dont even have a driver folder to select path and , when i installed those driver that u have provided and selected path to the arduino that i have installed(its folder, because drive folder is not showing) still windows shows me error with it. (and 1 mor thing the name of the device is cp2102 usb to UART bridge controller)

[@sreenivasapai4576]

i get it thank you bro

[@SMEDehradun]

🙏

[@yousefmejdi5298]

Does that mean my arduino board with Arduino UNO driver doesn’t work with ESP32 cam because i don’t have the ch340 driver ?

[@SMEDehradun]

Yes. For program ESP32 CAM, connect external UART TLT to usb converter.

[@beebonzgameplay]

I have a problem! When i try to search the arduino's driver folder, i just couldnt find it!

[@SMEDehradun]

Link is available in the video description.

[@denistommasi]

I have the same problem but I have the first Arduino type, the green one( 2:47 ). Where can I download its drivers? ​@@SMEDehradun

[@pranavisgmr1744]

Bro but my ch340 driver is not installing and port section in device manager also is not coming when I connect ariduino board and ariduino boards light are also on 😢😢?

[@SMEDehradun]

Try to update your window and then try to install the ch340 driver for com port

[@jou4der]

I have the same problem did you solve it?

[@SMEDehradun]

If even after installing the board driver, you are not getting com port that means your board is damaged.

[@homeah5318]

@@pranavisgmr1744 did you find a solution? Cause am struggling with same problem

[@JimTheweiner]

I'm using espduino-32 hw-729 but can't see it in device manager even if i plug or unplug it. Port is not showing in arduino ide or device manager.

[@SMEDehradun]

You need to install COM port driver of your board. I have shows the installation of CH340 driver in video. So install that driver & your board will work.

[@srinithip9760]

Sir its showing that it is pre-installed

[@SMEDehradun]

Then check which com port it detects, then try.

[@starhero6314]

Hi bro, How to send multiple sensor values from Arduino to nodemcu in serial communication, and then send to Arduino iot cloud... Can u tell me..

[@SMEDehradun]

Hi, This video can help you kzbin.info/www/bejne/jGjPY42NorKCh7s

[@starhero6314]

@@SMEDehradun Bro I tried this one, the data will upload but only one value read from arduino which is mentioned in first serial print line, for example use dht sensor it gives humidity and temperature,, In this only either humidity or temperature value will upload in nodemcu..

[@starhero6314]

I Need the humidity in nodemcu read data from arduino Serial.print line (humidity) ;and in the same way temperature in Nodemcu read value from arduino temperature line... Separately read and print.. Can u help me..

[@SMEDehradun]

Yes. Soon I will make the video in it soon.

[@starhero6314]

@@SMEDehradun ok bro,, Tq.. It's urgent..

[@bladexpixel1225]

My Arduino not displaying in other devices list My Arduino light is blinking also no ports are found and the 340 driver is pre-installed

[@SMEDehradun]

Try to uninstall the driver then restart your computer then connect your board. It will automatically install the driver if it is available with window update otherwise you need to install it manually. Sometime window update resolve this issue.

[@bladexpixel1225]

@@SMEDehradun yes I have done it I guess the Arduino itself is damaged but I don't see any parts damaged I don't know what's the real reason

[@SMEDehradun]

If you got uploading issue then there is bootloader issue in your board. Try upload bootloader. Below video may help you- kzbin.info/www/bejne/d6jFlIKKZ99pb80

[@shaikkabeer1320]

Sir In my laptop the it's just showing com9 instead of com9 Arduino uno

[@SMEDehradun]

It’s ok. Some time it will not display the Arduino Uno in com port. But be confirmed that you have selected the right COM Port of your board.

[@bladexpixel1225]

Bro how to check whether the Arduino is damaged or not

[@SMEDehradun]

While your board is Not displaying com port or it shows the com port issue in computer.

[@india_poco_x3]

Sir what driver we need to install, if we want to use nodeMCU

[@SMEDehradun]

There is 2 types of NodeMCU that you find in the market- with FTDI232RL IC & CH340C or CH2340G IC. Check which is with your NodeMCU board. And follow the same procedure as shown in this video for Arduino boards.

[@2cr496]

bro my arduino is showing as unknown usb device i cant do anything please tell me how to fix

[@SMEDehradun]

Only driver installation can help you.

[@2cr496]

@@SMEDehradun it helped me i had drivers installed now its fixed

[@SMEDehradun]

Great 👍

[@coldguy]

I have a problem, when I install a ch341 port driver for arduino nano it fixes an issue with error (avrdude: ser_open(): can't set com-state for "\.\COMx) but not forever, after couple of hours idk what happens, the error is back and i have to reinstall a driver to fix it again. Great video overall. I would be grateful if you could help me.

[@SMEDehradun]

Try again after restart your PC and some times there is window update issue with arduino ide.

[@wadebrewer7212]

The problem is these little controllers and the software to run them is garbage. That's the problem. And Windows....what is it with the jackasses "fixing" stuff that isn't broken? Really sick of it. I'm not even I'm I.T.at work but spend a good portion of my day trying to un-f printers....or connection issues....or....Holy crap I will not even get started with how TERRIBLE one drive is.

[@SMEDehradun]

If you are thinking, it will solved automatically, then it’s not possible. You have to work on it and it will get resolved. It’s very easy. I know you can do it because you are already in this field and can batter understand than others.

[@wadebrewer7212]

@SMEDehradun makes ZERO sense. I have LITTERALLY become the definition of "insanity" of doing the same thing over and over again. Right now the junk shows on the network amd I can ping the IP but still cannot control it from the app that was working this morning then simply stopped working.....without pushing code....without changing anything.

[@wadebrewer7212]

@SMEDehradun I did figure it out. It's something pretty stupid and not something of my own fault. For whatever reason when I use pin 2 as an INPUT_PULLUP..........it WRECKS the program and wifi Connection. Two different boards confirmed. If I set the exact same pin as a standard INPUT...no issues....wifi connects fine and the program runs fine....zero issues. I read somewhere that having serial begin following INPUT_PULLUP sometimes has issues. I am using someone else's code and inserting what I want for my project (Virtuino) so I will have to move stuff around or disable serial. We will see.

[@MohammadHamza-hn4vj]

Lights are not blinking and in ide nothings is able to flash

[@SMEDehradun]

If your computer recognise the com port and the program is not flashed and board is not working, then try to upload bootloader in your IC. Below link may help you to upload bootloader- kzbin.info/www/bejne/d6jFlIKKZ99pb80

[@MohammadHamza-hn4vj]

@@SMEDehradun nothing is flashing with any type of software

[@SMEDehradun]

Then you need to check your board hardware.

[@MohammadHamza-hn4vj]

@@SMEDehradun i already order esp32 5 pcs

[@SMEDehradun]

@MohammadHamza-hn4vj 👍

[@PraveenChintha-j2t]

sir Arduino TX light is blinking automatically please help me

[@SMEDehradun]

Arduino TX?

[@PraveenChintha-j2t]

transmitting light

[@SMEDehradun]

Try to upload blank code in your baord and then check.

[@PraveenChintha-j2t]

@@SMEDehradun Thank you, bro, just now I came to my Arduino was damaged.

[@SMEDehradun]

Ohhh.

[@djnikhilsingh]

Thank You ❤

[@SMEDehradun]

👍

[@nikihusein8975]

Thank you.

[@SMEDehradun]

Welcome 🙏

[@dea6492]

Thank you

[@SMEDehradun]

🙏 welcome

[@ilmakefrenembombeilobo190]

thanks man

[@SMEDehradun]

👍

[@Blue.sapa.arpaiaSapa]

Tankkkkk❤❤❤❤

[@SMEDehradun]

🙏

[@india_poco_x3]

1st view and 1st comment

[@SMEDehradun]

Thanks Rahul 🙏

[@panbotuk]

Ohh shit, my friend from aliexpress lie to me. Not ch340 like in description

[@SMEDehradun]

Check there may be different IC in your board.