Anshu AR

while (!Serial);//Waits for serial communicationSerial.available() gets you the number of bytes available to read from the Serial portcombined with an if() statementIt'll execute a when the number of bytes available to read from Serial Monitor is more than or equal to 1

Like I said, could you be more specific, please?(And do include screenshots of the serial monitor if possible.)

Do this:Wire the LED to PIN 11Go to step 3 and get two more button valueOne for brightness + and other for brightness -Then use those values for brightness+ and brightness- in the below code:#include <IRremote.h>#define LED_PIN 11//For controlling brightness use Arduino's analog PINS// ON UNO PINS: 3,5,6,9,10,11int IR_Recv = 2; //IR Receiver Pin 2IRrecv irrecv(IR_Recv);decode_results results;uint8_t brightnessValue = 127;uint8_t changeBrightnessBY = 10;void setup(){ pinMode(LED_PIN, OUTPUT); Serial.begin(9600); //starts serial communication irrecv.enableIRIn(); // Starts the receiver}void loop(){ if (irrecv.decode(&results)){ long int decCode = results.value; Serial.println(decCode); if (results.value == 3733801123) //Select button { analogWrite(LED_PIN, bri…

Do this:Wire the LED to PIN 11Go to step 3 and get two more button valueOne for brightness + and other for brightness -Then use those values for brightness+ and brightness- in the below code:#include <IRremote.h>#define LED_PIN 11//For controlling brightness use Arduino's analog PINS// ON UNO PINS: 3,5,6,9,10,11int IR_Recv = 2; //IR Receiver Pin 2IRrecv irrecv(IR_Recv);decode_results results;uint8_t brightnessValue = 127;uint8_t changeBrightnessBY = 10;void setup(){ pinMode(LED_PIN, OUTPUT); Serial.begin(9600); //starts serial communication irrecv.enableIRIn(); // Starts the receiver}void loop(){ if (irrecv.decode(&results)){ long int decCode = results.value; Serial.println(decCode); if (results.value == 3733801123) //Select button { analogWrite(LED_PIN, brightnessValue); Serial.println("LED turned ON"); } if (results.value == 403429887) //Power button { analogWrite(LED_PIN, 0); Serial.println("LED turned OFF"); } if (results.value == 422111111) //Brightness UP KEY { if(brightnessValue+changeBrightnessBY<255){ brightnessValue+=changeBrightnessBY; } analogWrite(LED_PIN, brightnessValue); Serial.println("Brightness UP"); } if (results.value == 523473811) //Brightness DOWN KEY { if(brightnessValue-changeBrightnessBY>0){ brightnessValue-=changeBrightnessBY; } analogWrite(LED_PIN, brightnessValue); Serial.println("Brightness DOWN"); } irrecv.resume(); }}

Here's the arduino sketch file

Probably not useful for UNO.But for some devices like Leonardo, the sketch waits at "while(!Serial);" unless Serial communication has established.

You'll need a H-Bridge of transistors to be able to change direction of motor.Refer to this: https://www.instructables.com/H-Bridge-Motor-Driver-for-Arduino-Using-Transistor/

You'll need an H-Bridge of transistors to be able to change the direction of the motor.Refer here: https://www.instructables.com/H-Bridge-Motor-Driver-for-Arduino-Using-Transistor/

Can you be more specific?Does the serial prints "0"?Can you include a screenshot?I am assuming you need to set the baud rate on the serial monitor to 9600 as the sketch defines Serial communication at 9600 bauds.(You can adjust the baud rate at the bottom right corner.)

Hi, you'll probably need to use a MOSFET like an IRF640. With a different circuit.I would recommend using Digikey part search to find the MOSFET as per your requirements.

I used Fritzing get it here:http://fritzing.org/

Yes,As per the datasheet of the L293D motor driver, it says that it can operate from 4.5V to 36V.But, it can provide a maximum of 600mA output current. (per channel). So, check how much current will the motor draw. The motor should not draw current more than 600mA at any instance.

Usually, it's because the baud rate on the Serial monitor differs from the baud rate of your uploaded sketch.In this case, the baud rate is 19200As the code says:Serial.begin(19200);So make sure you change 9600(default) to 19200 in your serial monitor

//Here try this code:void setup(){pinMode(13, OUTPUT);Serial.begin(9600);while (!Serial);Serial.println("Input A to Turn LED on and B to off");}void loop() { if (Serial.available()){ char state = (char) Serial.read(); if (state == 'A'){ digitalWrite(13, HIGH); Serial.println("Command completed LED turned ON"); } if (state == 'B'){ digitalWrite(13, LOW); Serial.println("Command completed LED turned OFF"); } } delay(100);}

LOL!

Hi usamaabro,That's quite unlikely to happen.Anyways you can always copy and paste the sketch that's included in step 3.Or, you can post a screenshot of the error that's being displayed on your Arduino IDE.

Awesome loved it!

Bigger DC motors?In order to run bigger DC motors, find out how much current your motors are consuming at full speed with load(if any).Finally, lookup transistors (or even better MOSFETs) that can withstand current higher than what your motors require.same bridge for two motors?If you want to control their individual speed at the same time then NO.However, you can run two motors(As long as they are consuming current under the limit). But they will run with the same speed(If both connected in parrel) in the same direction.

Go with the fritzing schematics in step 2.Anyways diodes should be pointing from the emitter towards the collector of the transistor.Hope this helps. :)

Loved it!

Nice! Loved it. Can't wait to try it!!!!

Nice.

Very well explained!You have my vote. Good luck with the contest :)

Awesome man!Totally loved it!

Nice work!

Pretty! :)

Cool!! Loved it.

Thanks! Sure I will give that a try :)

Nice!Now, you can improve the schematics in Step 8 by using Fritzing or Autodesk Circuits. Just to make it even more conveying and clear.:)

Nice!I've been using the exact same batteries from eBay India. Nice to see you, buddy!

Nice mod!

This is coool!I've tried these many times during my 10th grade.

Nice! I've been playing around with transistors for a while. This one is fun!

Nice!

Nice!!

Awesome!:)

Nice!!!

Nice instructable!Just a small question off the topic, Whats that multimeter you are using?I mean I have to buy one. So is that a reliable one?

Nice!What's that opaque project enclosure you're using?

Awesome!!

Nice!But the display uses lots of Arduino pins. Give OLED display a try. The project will look even more compact.Also OLED displays are cheaper that the one you are using.

Nice!But the display uses lots of Arduino pins. Give OLED display a try. The project will look even more compact.Also, OLED displays are cheaper than the one that you are using.

Alright I wish for........... wait a minute, I ain't gonna say that out loud. Anyways, nice first instructable!

Hey Tranie,It's you again! Trust me your name has been appearing a lot. Since your instructable "DIY gyroscope":) :)

Nice!!Good luck for the contest :)

Awesome!!