#MCWHORTER ARDUINO WHILE LOOP HOW TO#
#MCWHORTER ARDUINO WHILE LOOP SERIAL#
#MCWHORTER ARDUINO WHILE LOOP CODE#

Using a loop to set integer values for each colour of the RGB LED. I’ve played with this setup for a while and it worked out really well, of course I wasn’t pushing for 16×106 colors but it is fun. While(Serial.available()=0)//WHILE serial. Books You Should Read: Basic Electronics Hackaday. Serial.println(msg1) //Ask for input from user/sensor While(Serial.available())//start a loop to print in 'question' string THIS PRINTS THE 'msg1' String 1 time each loop then breaks Serial.println(msg1) //print out initial 'string' aka msg1

#MCWHORTER ARDUINO WHILE LOOP SERIAL#

Serial.begin(9600) //intialize serial com at 9600 baud Int number //assign 'number' for variable value later Is that what you're getting Your question is incomplete.

#MCWHORTER ARDUINO WHILE LOOP CODE#

I would expect this code to print: either 'inside while loop' (if pin 2 is false) or nothing, followed by 'Break.' over and over again. This could be in your code, such as an incremented variable, or an external condition, such as testing a sensor. 1 The while (1) loop executes once, every time loop () is called, printing or not, depending on the state of pin2.

Something must change the tested variable, or the while loop will never exit. Referencing post #7 ^^^^ if i rewrite the same code as this then it prints perfectly with no double printing: again i'm just trying to understand why his codes are not working on my unit when i'm plain as day copying his code letter for letter Control Structure Description A whileloop will loop continuously, and infinitely, until the expression inside the parenthesis, () becomes false. It enters in 1 count command and then offers no more input commandsĪs per the serial.available syntax page and now it just infinitely loops the question without waiting for an input. While(Serial.available())//WHILE serial.avail do nothing and wait I'm not a master programmer or anything but i've played with c++ for a few years before compilers could be downloaded onto phones and MSDOS and shell systems were 'the up and coming thing'. Why is it printing : Serial.println(question) at the beginning twice? I'm making sure i don't have a bug in my atmel328 pic.

WHY? IT has nothing to do with my serial.available if my Rewritten code functioned using it. When i use his exact code letter for letter i have a double print. THEN SHOWS SAID CODE FUNCTIONING IN THE SAME VIDEO IN VIDEO.Īrduino Tutorial 18: Reading Numbers from the Serial Monitor | Technology Tutorials () THERE ARE NO ERRORS IN HIS CODE IF IT'S WORKING IN HIS VIDEO! I'VE COPIED IT LETTER FOR LETTER IN THE VIDEO! HE LITTERALLY ZOOMS IN ON THE CODE FOR YOU TO COPY IT ALONG WITH HIM. HIS EXACT CODE ON MY SYSTEM PRODUCES A DOUBLE PRINT! HIS VIDEO SHOWS HIS CODE WORKING PERFECTLY! have you even seen paul mcwhorter vids? he shows his published codes functioning on camera while zoomed in on the code showing letter for letter each line so you can follow along. Number=Serial.parseInt() //now 'number' is equal to the serial INPUT lineĭigitalWrite(Rled,HIGH) //turn on the ledĭigitalWrite(Rled,LOW) //turn off the led

While(Serial.available()=0)//WHILE serial.avail do nothing and wait Serial.println(question) //Ask for input from user/sensor Void loop() //Ask first, wait, then read to get data from serial com PinMode(Rled,OUTPUT) //assing 'Rled' D6 pin as an OUTPUT LESSON 1: Simple Introduction to the Arduino LESSON 2: Simple Arduino Breadboard Tutorial LESSON 3 - Arduino For Loops and LED Circuit LESSON 4: Printing. Serial.begin(115200) //intialize serial com at 115200baud Int number //assign 'random1' for variable value later

8 9 The sensor readings during the while loop define the minimum and maximum of 10 11 expected values from the photoresistor. 6 7 While the pushbutton is pressed, the sketch runs the calibration routine. rewriting it as this solved all my issues, BUT WHY DID I HAVE TO WRITE IT DIFFERENT THAN WHAT I WAS SHOWN ON THE LESSON? Shouldn't his code of worked no issues on my unit? 1 2 3 Conditionals - while statement 4 5 This example demonstrates the use of while () statements. 00001%ĪGAIN THE ISSUE IS WHY FOLLOWING HIS EXACT CODE DID NOT REPRODUCE THE SAME RESULTS HE SHOWED? since my first post wasn't clear enough i'm guessing.

#MCWHORTER ARDUINO WHILE LOOP HOW TO#

The following sketch shows how to get a single character from the Serial Monitor window and determine if the character is a number or not.That still doesn't answer why my unit isn't doing what his is so it doesn't solve my issue by even. Let's now look at how to handle both serial input and output. It was used to display the results or outputs from various example sketches in each part of the course. Any serial program, or even a custom serial application can be used to send data to the Arduino instead of using the Serial Monitor window.Įxcept for part 13 of this course, the Serial Monitor window has only been used for output purposes. A user can enter data in the input field in the serial monitor window to send values and data to the Arduino.

Mcwhorter arduino while loop