 to be a better than average...
Find detailed Bryan Reynolds stats on FOXSports.com. Explore all {Team} MLB player stats - including batting average, RBIs, home runs & more!
Pirates rookie Bryan Reynolds won't win Rookie of the Year...
Bryan Reynolds is a skilled switch-hitter, giving him an obvious edge. USATSI 1. Switch-hitting. To state the obvious: The platoon advantage remains important....
Bryan Reynolds Fantasy Projections | Daily, Week, Season...
Bryan Reynolds returns as a new dad, leads Pirates to 6-2...
Bryan Reynolds (L) - Hudson, FL Background Report at...
The Pirates begin a three-game series in Kansas City as the Pirates face the Royals at Kauffman Stadium. Steven Brault (0-2, 4.37) faces Kris Bubic (0-5 4.89) as both pitchers look for their first...
Dr. Bryan J. Reynolds, Cardiologist in Longmont, CO | US...
Dr. Bryan J. Reynolds is a cardiologist in Longmont, Colorado and is affiliated with multiple hospitals in the area. He has been in practice for more than 20 years. When choosing a provider, it...
Bryan Reynolds (J), 78 - Seattle, WA Background Report at...
Bryan Reynolds Statcast, Visuals & Advanced Metrics | MLB...
Bryan Reynolds grew up in Scarsdale, New York, where he attended Heathcote Elementary School and graduated from Scarsdale High School. After a short career racing motorcycles, he attended the University of California, Berkeley, where he received his bachelor degree in English Literature.
Tim Benz: Bryan Reynolds’ tools are fixing 2 Pirates...
Pittsburgh Pirates’ Bryan Reynolds hits a two-run double off Cincinnati Reds relief pitcher David Hernandez in the eighth inning during the first baseball game of a doubleheader, Monday, May 27...
This is not correct. It is a breaker lock, but it's purpose is to allow someone to turn off a circuit and lock it in the de-energized position. This allows someone to work on a circuit safely without a disconnecting means near a piece of equipment. A common use in residential work is on a circuit for a built in oven. No one wants a visible disconnect in the middle of their kitchen, but you must provide a way for the oven to be replaced or serviced safely. By turning the circuit off and then placing a lock on the breaker lock, the person working on the circuit is assured that he is safe from an energized circuit.Hello everyone I have been having difficulties with this project (should have been simple).
It is just a line follower program who needs to cover about 6 meters in the least amount of time possible.
It is kinda slow and after the first half of the track (it is a rectangle with gentle curves at its edges) where it needs to turn, it starts to form a path of a sine wave between the black lines.
I did indeed try google but it didn’t really help me in this instance.
I’m not in any way an experienced person with Arduino, in fact I am fairly new. Sorry for any mistakes. I thank anyone in advance who responds to this post.
You should post your code in </> tags.
When you say the track is a rectangle with gentle curves at it edges do you mean it is a rectangled with rounded corners?
Try to explain what your code is supposed to do.
In this case is the follower not in the middle of the black line, if so why does it try to turn right instead of going at full speed?
Here should it not be trying to turn left instead of going straight?
Yes the track is exactly like you think it is.
About the code you are right, the values are inverted (old save of the file) but that is not the end of the problem because it keeps making that sine wave which keeps slowing the robot.
The robot does the track 6 meters in 10,8 seconds, 0,55m/s (very slow, with actually good motors).
You should put comments in the code to say what each section does turn left turn right and so on.
You should also put print statements so that as you watch the follower you can keep one eye on the output to see what it is doing and why.
and it has four fixed responses to these inputs.
It has no memory, it does not know what it was doing last or how long it was doing it for.
That is what is causing your oscillations.
If the follower has been BLACK BLACK for a long time it must be going fast along a straight.
If it then goes WHITE BLACK then either it is on the straight and drifting of it to the left or it has reached a right hand bend. It should make a small turn to the right. If that gets it back to BLACK BLACK then it was drifting off the line and it should start going straight again. On the other hand if it continues to be WHITE BLACK then it must be on a corner and it needs to make a sharper right turn. 
So you need to build some memory and timing into your program.
If the track is fixed and you are allowed to know the layout then after a few trials you could more or less hard code the speed of turning the follower needs to make to get round the corner, however that is cheating and not really following the line.
Thank you. You have helped me very much.
If I could ask one more thing, how do I go for searching “adding memory to my Arduino program” because only what I find is increasing its flash memory, which I don’t believe that is what you mean.
The Arduino board is modified with more flash and an embedded “motor controlling Arduino shield”.
If anyone wondered it is powered by 8 1,5V batteries and it has an aluminum chassis (I didn’t have a say in this), to prevent the Arduino from killing itself it has a plastic sheet preventing it from touching the metal, I don’t really know the RPM of the motors but I know they are powerful enough, two black & white sensors at the front and one in the center.
I will add the suggestions you have given me in this thread and hopefully well implement them. If I am able to finish this project, the end product will be here.
You are correct I don’t mean adding physical memory. I mean getting your sketch to remember what it did last, at the moment it only lives in the present.
Imagine you are the line follower. You look at the sensors and they say BLACK WHITE what are you going to do?
To make a good decision you really need more information like I see BLACK WHITE now but just before that I was seeing BLACK BLACK for 10s and going at full speed.
A couple of other things about your program. The funtion loop() does what it says it loops it is called again and again.
Get rid of that while statement and let loop() do the looping for you.
When @ardly said ‘add memory’, the reference is to the logical construct in your program, not the physical memory that is part of the arduino.
It means, keep track of the last state (or the last several states).
Then you can use the current state of the sensors AND the previous state of the sensors to make better decisions about what to do now.
Edit: which @ardly just clarified.Here’s an unusual little mp3 that’s not intended to be scary, in fact it’s a holiday souvenir ”Voice-O-Graph” recording from circa 1940. I don’t remember them, but apparently little booths where you could go and record your own message onto a vinyl pressing were quite popular.
Back in 2007 someone over at WFMU Beware Of The Blog received a crate of records and found this in there.
It’s the sound of a little girl visiting New York and recording her souvenir disc at the top of the Empire State Building. I imagine the records were of a poor quality to begin with and playing them probably finished them off, but the blogger here has retrieved the message via lots of filtering and noise reduction. I think it’s that process that gives the recording an eerie quality, as a child’s voice from the past calls out through layers of digital technology.
If you click the link to WFMU and scroll down through the comments you’ll see one from Carol Ginzburg – the little girl herself!
The options for happy hour in the Alamo City are as varied as the bottles of booze on the top shelf of your favorite bar. Click through the gallery above for the details on some of San Antonio's finest ones.
Rotating food and drink specials include $5 snacks, $5 mojitos, $6 Havana margaritas, $4 Segura Brut Rose and more.A couple of weeks ago, my husband and I had the chance to attend a wellness retreat. It was only a 24 hour experience, but we returned home feeling so refreshed! Taking the time out to break away from our typical routine and focus on reflection and self-care for a bit was just what we needed.
One of my favorite things about this time of year is the reminder it offers us to slow down a little. The summer is in full-swing and it seems like just about everybody is dreaming up some fun in the sun. Seeing so many others carving out time in their busy schedules for a little rest and relaxation always makes me want to as well! But sometimes, finding the time and money to do so can feel like a