Відео

No friend. Definitely not. In fact, you can adjust the sensitivity of the sensor by turning a small potentiometer in the sensor itself. Thus you can adjust the threshold of sound level at which it is getting triggered.

Hi friend. I didn't understand your comment. What did you mean?

Sahi hai bhai..👍

Hi friend. I used 2 Nos. of 3.7V 18650 batteries. So total 7.4 volts.

Hi friend. Yes, we can check the Bluetooth module without actually connecting to the project. You can watch it in the video given below. ua-cam.com/video/NMclHmpvOLE/v-deo.html

@@njelectronics25 Thank you friend. 🙂❤️🥰

@@rlrentertainmentsinventions Yes friend. The link to the full video will be given below every short video. I am giving the link to making video below also.. ua-cam.com/video/pbJbpHjC3v0/v-deo.htmlsi=axQG-WbLrznU1TLd

@@Science_4U_ ok bro thanks for your reply

okay friend sure!!!. You can download the STL file from the following link. drive.google.com/file/d/18z4xtbRPPXTbj8JmKBXvNtwknx8uOrwh/view?usp=sharing

@@Science_4U_ Thank you so much for the STL

@@erickabuchanga6759 You are most welcome dear friend..😮🥰

This is 100% real friend. You can trust me on that. You can watch the full video and you can see several people have made it and commented that it is working.

@@KINGGWN Hi friend. I guess you want to change the animation with the press of a push button switch and thus as per your will. For that you have to connect 5V of arduino to any one digital input pin of arduino through a push button switch. And you have to modify the code so that when you press the switch and thus the connected digital input pin is high, the OLED has to display next animation. Thuis way you will be able to control the screen based on your will.

Hi friend, This LED blink code is already given in the examples section of Arduino IDE software along with a set of basic standard codes. In the video, I am showing how to open that code from examples section and upload to Arduino. However, since you have asked for the code, I will paste the code here also. I will also give a separate link in the description box for downloading the code. Thank you. Code is given below. void setup() { // initialize digital pin LED_BUILTIN as an output. pinMode(LED_BUILTIN, OUTPUT); } // the loop function runs over and over again forever void loop() { digitalWrite(LED_BUILTIN, HIGH); // turn the LED on (HIGH is the voltage level) delay(1000); // wait for a second digitalWrite(LED_BUILTIN, LOW); // turn the LED off by making the voltage LOW delay(1000); // wait for a second }

@@Science_4U_ Thanks. i subscribe now;)

@@RaphRonron11 Thank you friend..🙂🥰

@@NeetaPandey_06 Thank you so much..🙂🥰❤️

Thank you..🙂❤️🥰

Arduino UNO : 200 rupees HC-SR04 Ultrasonic sensor : 50 rupees Battery, cables, switch, buzzer : Total 100 rupees So total cost will be around 350 rupees (excluding the shoe cost)

No friend. It will not work. IR sensor is a proximity sensor only which can measure distance of objects by sending Infrared waves and measure the reflected waves from the object. It cannot detect infrared radiation emitted from flame. For that flame sensor itself is required.

Hi friend. Knowing the rpm tells us how fast it is rotating. For assesing the health of rotating objects, the speed measurement is required to know the vibrational amplitude at the rotational speed. This gives us a measure of the unbalance in the system.

Hi friend. I have uploaded the code in mediafire website also. Can you try downloading the code from the following link ? www.mediafire.com/file/fppij037r0vvb8i/Line_following_robot.ino/file

Thank you dear friend..🥰🙂❤️

Hi friend. It can easily balance stationary objects when kept on top. Glass is a stationary object. But water inside glass is a moving object. The water inside the glass oscillates and makes it loose its balance. That is why it fails when we keep a glass of water on top.

@@Science_4U_ thanks brother

​@@Science_4U_Aggiungi un giroscopio

Hi friend. The circuit diagram can be downloaded from the below link. Sorry for the late reply. I made the circuit diagram now only after seeing your comment.. drive.google.com/file/d/1eV-yimcy5nkLRaVyPKFNgBr7X30HTA6g/view?usp=sharing

Yes sure friend. I can help. What is the help that you want?. Have you tried making this project?

@@Science_4U_ yes bro I want to send you some videos of that so I can solve my problems

@@umangpatel158 okay. Please send videos to the channel Instagram ID. I will have a look.

Bro your insta id ?

​@@Science_4U_bro insta id ?

Yes definitely friend. Yoi have to upload the code and after that only it will start moving. 5 lithium ion batteries will give how much output voltage?

15v, when I checked Each ba3s is emitting 4v

Will it be enough

@PythonExploratorium Yes. More than enough. Normally we give only 9-12v battery voltage You can upload the script and see if the motors are rotating.

Sir, am sorry for disturbing you this way. I just need to get this done for a project am working on. I'm getting errors while uploading the code.

Thank you so much..🥰🙂❤️

Hi friend. I am glad that you liked the video!!! I am not sure why you are not able to open both the links. It is a lengthy code. I tried pasting it here. But only a portion of the code is getting pasted here due to character limitation. Can you give your email id? . I will send the code directly.

Hi friend. There could be several reasons why the motors are not rotating. 1. Can you see 2 jumpers in the motor driver pin connecting ENA and ENB pins to the pins above? . These are the enable jumpers and are required to enable motor rotation. 2. Next, the motor driver itself could be faulty. The lights will become on, but it could be faulty. Have you used this motor driver board before or is it a new one? 3. The motors will not rotate if the batteries are discharged. But I will not suspect that because the servo motors are working. So batteries may be adequately charged. However, you can keep the uno connected to the USB source and switch on the battery and then try whether the motors are rotating. Since USB is connected arduino, it will take power from USB and batteries will be used for rotation of the motors alone. So, even if the batteries are not sufficiently charged, it may work. Also you can try helping the motor to rotate with your hand. It will rotate if discharged battery is the problem.

Thank you dear friend..❤️🙂🥰

??

Thank you. 🥰❤️🙂

Thank you so much..❤️🥰🙂

Hola amigo. No lo tengo ahora mismo. Lo haré y compartiré pronto.

Please say something. On my motor driver, it's showing red led light, someone said it means that my motor driver is receiving low or high current, so it's shutting down himself. Am new to this, can you help me please. If you can give me your handle, I can send you my connection, so that you can put me through. Thank you so much

I'm using a raspberry pi pico

Hi, friend. I am not knowledgable in using raspberry pi pico. If you are using arduino uno for this project, I can help you.

Hi friend. I have made a separate video on voice using arduino. You can combine that code and this code which will give voice alerts. You can use any small toy speaker for this.

Thank you so much..🙂🥰❤️

Which batteries are you using friend?. You need atleast more than 6V at the Vin pin for the arduino to work correctly. I have used 4 Nos. of AA 1.5V batteries, which will give 6V total. Using 2 batteries will reduce the voltage to 3V and it most certainly will not work. If you are using 18650, 3.7V batteries, then 2 nos. will be sufficient as it gives 7.4V total voltage.

@@Science_4U_ I was using a total of 3V, I didn't know that, thanks! If I buy two battery holders in total, where would the other one be connected? I'm new to all this

@sfi1988 if you buy 2 battery holders, you have to connect them in series to get output voltage of 6V. Connect the positive wire (red) of one battery holder to 12V motor driver board. Connect negative wire(black) to the positive wire(red) of other battery holder. Conmect negative wire(black) of the other battery holder to ground pin of l298 motor driver.

@@Science_4U_ And the negative and positive cable that are together go to the 5v output of the motor? sorry for so many stupid questions

@@sfi1988 No friend. the negative and positive cable from 2 battery packs that you have joined together is not connected anywhere. It will just remain like than. You can cover the joint with an insulation tape. the other 2 wires from the battery pack only are connected to the motor driver board..

Hi friend. The step by step tutorial for making all these projects are already available as separate videos in the channel. Please do check it out..🙂

Hi dear friend. The links to download the code is already given in the description box below the video. I am giving the download links here also.. Link to download Code: drive.google.com/file/d/1ggzs2R8YUCkfu-xahoCeaGAAlYEJ0T3f/view?usp=sharing OR www.mediafire.com/file/k1jiv19uo41xxe9/Bluetooth_controlled_car_with_obstacle_avoidance.ino/file

But sir there is nothing

Then there is some problem. Are you not able to download a small file?. You should dowload the file and open in Arduino IDE software..

Hi friend...🙂🥰

Okay friend. Then it is confirmed. The reason why only one motor is working is due to discharged batteries. When you connect uno to PC, the uno, sensors and servo are powered by PC. So more battery power is available for rotating the motors and hence both motors rotate. With the uno disconnected from PC, the batteries have to power everything together. So it becomes difficult to rotate both motors together. So change to a new battery and the problem will be solved.

Sir I use a new battery then also the problem is there

Yes sure friend. You can connect 2 x 9V batteries in parallel and use them..

If the robot is moving then the jumper should be there connecting the ENA and ENB pins to the pins just above it. If only left motor is rotating, mostly the battery could be discharged so that it is not able to rotate both motors together. Can you lift the robot in hand and try rotating the non rotating wheel and helping it to rotate. Is it rotating now?. Also keep the uno connected using usb cable and try. Whether both wheels are rotating?

sir my robot is working only USB is connected yo arduino

Okay friend. If you dont have jumper near to IN1 and IN4 pins, you can use a jumper wire to function as a jumper pin. Can you share a photo of your motor driver board in the following instagram id. I will help. instagram.com/_science4u_?igsh=MTM5aXFpdTM5aG5lNg==

@@Science_4U_ Thank you sir

Hi friend. This could be due to several reasons. 1. Can you see 2 jumpers very close to the IN1 and IN4 pins in motor driver board?. These jumpers are required for enabling the rotation of the motor. 2. The L298N motor driver board may be faulty. The lights will switch on, but still it may not work. Have you used this motor driver board before, or is it a new one?

Hi friend. Glad that you enjoyed watching the video.Did you mean you wanted to download the 3D model of the Darrieus Wind turbine?

Okay friend. Can you come to my instagram account. We can chat there. I will help..Following is my Instagram profile.. instagram.com/_science4u_?igsh=MTM5aXFpdTM5aG5lNg==

Hi Haroon, I have sent a message in your instagram account. Please see the message.

I can't send messages on instagram

I selected a science club in my school i need to make it for Monday the problem I already sent at first message pls check the message and pls reply

@@HaroonSidheeqpp I have replied in instagram. Please check.

Okay friend. Glad that you liked the video...🥰🥰😔❤️

Okay friend. I will do when I get time..