My requirement is that the Arduino will send sensor data after getting a command from the PC side and will keep sending for 20 times, but in this meantime, if new command comes, it will stop sending the sensor data, will read the command and then start once again to send the sensor data 20 times. Instead take a look at the BlinkWithoutDelay example in the IDE. What I mean is that if after sending 5 sensor data, the Arduino sees that there is another command from PC, it has to stop sending the sensor data it will get the new command from the PC, read it and then start sending again. Because you're using delay() within your while loop you have to ensure that you are pressing the key at the precise moment it is read. If the analog value is found to be above the set threshold the built-in LED. This data is then compared to a threshold value. But while a button attached to digital pin 2 is pressed, the program runs a method called. In the main loop, the sketch below reads the value of a photoresistor on analog pin 0 and uses it to fade an LED on pin 9. Now the problem: I want the Arduino to keep sending the data (current sensor data - so it will may change in value), suppose 20 times if there is no command from the PC side. In the code below, a variable called analogValue is used to store the data collected from a potentiometer connected to the board on analogPin 0. This example shows how to use a while loop to calibrate the value of an analog sensor. The Arduino side will get the command and send sensor data. I want to send a command from the PC to the Arduino side. 1 The while (1) loop executes once, every time loop () is called, printing or not, depending on the state of pin2. In the function forward() the speed goes up slowly inside of a for loop (to accelerate gradulay) and write it to the motors.Background: I am using an XBee connected with a PC and a XBee + Arduino (sensor too). when I press '1' (forward on the android), the Arduino activate a function called "forward()", when I release the button it's sends '0' to the arduino and activate the function "stopm()". gfvalvo: The problem is not the âforâ loop, or the âbreakâ statement, or the âreturnâ statement. The problem is, that I cannot access the keypad in the loop. It seems that nesting two loops (in my case flash() inside loop 1), both of which uses millis() is the source of the problem. For debugging, I put serial prints after entering the loops. This makes sense because all the code is in an infinite loop - void loop(). Then I want to leave the loop and continue the program execution. I put loop 2 in there because without it the lights flash forever. The program must stay in this loop until all the parameters are set. In this loop I have to set some parameters. While loop exit condition Using Arduino Programming Questions AJITnayak February 26, 2014, 8:51am 1 i have function like this. That way, next time the object is called, it will wait until its time to advance the animation. So what I basically want to do, is to enter a loop with the press of a button. If instead nextAnimationStepTime>millis (), the object advances the animation to the next step, and sets nextAnimationStepTime millis () + animationStepDuration. I'll explain more: it's a car controlled by bluetooth. In the loop () function, if nextAnimationStepTime as -1 is 128. Is there a simple way to exit a specific for loop? if I use break it exits all of the loops, I've also tried "return" but I think it did the same thing. If you can avoid filling up the buffer you will be okay.
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