@@programmingelectronics I agree too :) albeit I’d have compressed it even further… like: DigitalWrite(ledPin, (input > 100) ? HIGH : LOW); great video and explanation with visuals!
@@programmingelectronics Well, I saw your Hydroponic garden video (IoT) and I’ve seeing many BLE/Wifi projects/kits, but all of them always use a pre-made iOS app (even in Android) or a limited cloud interfae, so I was thinking a project that incorporate a custom iOS app design with a BLE or WiFi modules to enable HomeKit. Like Philips HueLights …etc Hope I’m making sense.
Good explanation. Ever since C was invented, yes I'm that old, there has been a contest to see who can write the most complex program in a single line. Readability and maintainability is my mantra. If you show it to another programmer is it more readable? Yes it did save 4 lines of source code but source code is free, add a whole bunch of comments and see how much your run time code grows. You didn't show how much ram you saved. I'm guessing a good compiler would make them the same.
@@programmingelectronics I think A lot of people like me are learning programming using Arduino because it's basically C. It would be awesome if you can make videos on programming concepts like pointers unions, file handling etc
Ternary can make your C code looks small, but it depends on some compiler. If it smart enough, compiler can optimize it but some compiler can't .I use ternary in bare metal C compile with SDCC (target is stm8 core). In some situation the normal if else costs less resource than the ternary. Just want to point out for someone playing with weird, not popular architecture/compiler.
You missed the whole point with ternary operators. The real benefit of using the ternary operator is to use it as an argument to a function call for instance in your call to DigitalWrite to determine if it is going to be high or low. This way you don't have to declare an additional variable state just to save the result that goes into the DigitalWrite call.
I find I’m using if/else to check a range and if in certain range turn on or off several functions or relays. Does the ternary work to do this? Something like if a > b turn on c, d, e, and turn off f, g, h
Great question! I think you could make a ternary work for this, but I believe the output is limited a single line of code. For example, in the video, we use digitalWrite() as one of the "options", I don't think you can have more than a single line of code to execute there... (but I could be wrong...) That being said, if you had a flag variable as the output of the ternary then that flag could control flow for several other functions perhaps.
@@programmingelectronics I’ll try that on one of the projects I’m working on now. If it works good as just a redirect for a function then I’ll use it on the two larger projects where they are almost nothing but IF statements. Although I’m not sure if I completely grasp the idea of functions yet, I’m at least understanding enough that I’m willing to try. For those curious why so many IFs, I’m making two controllers. One is based on exhaust gas temperatures to “map” how much water the engine gets to keep it from getting too hot. The other is the same idea for propane based on boost pressure since it is a mechanical fuel diesel to add power. Thanks! 👍
@@programmingelectronics I've just cleaned up some code, in part making multiple "if" statements within a State Machine ternary operators. There have been a few odd errors come up but working through them.
I QUIT!🤯 I have figured it out! I just absolutely don’t have the intelligence to wipe my a** let alone program whats left of this shotgun blasted uno!🤣 Would you please (now e-begging) do a video for morons on a wireless relay controlling an Arduino uno controlling a MD20A changing the Cytron Motor library where pin 2 and pin 3 (PWM DIR) are changed to pin 3 (PWM) and pin 4 (DIR). Now using pin 2 as an input. It is just a plain Jane 12vdc brushed motor. Go dir a at 255 stop a sec then go dir b at -255 and stop. I have tried everything I have knowledge to do. I got the motor running but just cant get the keyFob to operate anything but a bad attitude! Do I need a shield? (i know at this point the breadboard deff needs one😂🤣😂🤣) seriously tho. Im at my wits end. The message boards are so complicated i just cant even use em. I guess this kinda thing is for folks w/o learning disabilities. Wish I could post this sketch I have. (a true abortion) you would be thoroughly amazed it compiled. (I WAS)
This is a slick way to compress the code, especially the one line variant.
I agree! Thanks for watching!
@@programmingelectronics I agree too :) albeit I’d have compressed it even further… like:
DigitalWrite(ledPin, (input > 100) ? HIGH : LOW);
great video and explanation with visuals!
P.s. just noticed someone else had the same idea …
I never saw this kind of coding!
looks amazing and easy to understand!
thank you
You got a thumbs-up and another subscriber.
Thanks for the sub!
The way you explain the code so mazing, super clear and easy to understand. New subscriber here.
Awesome, thank you!
Thanks for teaching, this is much better than if/else, where I don't have to deal with those pesky brackets.
I like it a lot too! Thanks for the note
Very clear description! Thank you Sir!
You are welcome! Thanks so much for the note!
Great explanation! I hope you’re the one soon showing tutorials integrating Arduino and iOS/Swift code 😉
Thanks for the recommendation on that Rikeõ! Is there any specific application you have in mind that you would like demoed?
@@programmingelectronics Well, I saw your Hydroponic garden video (IoT) and I’ve seeing many BLE/Wifi projects/kits, but all of them always use a pre-made iOS app (even in Android) or a limited cloud interfae, so I was thinking a project that incorporate a custom iOS app design with a BLE or WiFi modules to enable HomeKit. Like Philips HueLights …etc Hope I’m making sense.
@@wilmercb Thanks! Yes that makes sense!
Good explanation. Ever since C was invented, yes I'm that old, there has been a contest to see who can write the most complex program in a single line. Readability and maintainability is my mantra. If you show it to another programmer is it more readable? Yes it did save 4 lines of source code but source code is free, add a whole bunch of comments and see how much your run time code grows. You didn't show how much ram you saved. I'm guessing a good compiler would make them the same.
Great points Cliff!
Great explanation!
Thanks for a ton for watching!
Happy New year thanks
Thanks! Happy New Year!
a >b ? thisShows : thatShows. The repeat of the condition in the statement can confuse some in its application. Great explanation though.
I never heard of that operator before but I like it. The less typing I have to do the better. Thank you
Thanks for watching Warren! I see the ternary pop up in code now and again, so it's nice to recognize it.
@@programmingelectronics Hey love your video. Can you please make a video for pointers and unions etc?
@@programmingelectronics I think A lot of people like me are learning programming using Arduino because it's basically C. It would be awesome if you can make videos on programming concepts like pointers unions, file handling etc
Simply great explanation!
Thank you!
Nice explanation. Though I find the longer IF statement easier to read.
Thanks! I kind of go back on forth on which I prefer...
this operator only works if the variable is only fix with two possible value, beside that, if else or even switch case statement are the way to go
Pure clearance man👌...
Nice,ang clear thank you
Thanks!
Thanks dude
You bet! I hope you found it useful!
have to try, I think
digitalWrite(ledPin, ((input>100) ? HIGH : LOW)));
might work too?
Nice, just checked - it works! Thanks Patrick! (small side note: one less parenthesis on the right.)
@@programmingelectronics Also removes a variable (state) so will probably run a little faster, if that's important.
the below statement also works for this case, is simpler, without the ternary operator.
digitalWrite(ledPin, input>100);
@@LilGh02t Nice!
Ternary can make your C code looks small, but it depends on some compiler. If it smart enough, compiler can optimize it but some compiler can't .I use ternary in bare metal C compile with SDCC (target is stm8 core). In some situation the normal if else costs less resource than the ternary. Just want to point out for someone playing with weird, not popular architecture/compiler.
Thanks for pointing this out!!
Best videos thanks sir
Interesting! Keep it up, i subscribed !
Thanks for the sub!
And what about " digitalWrite (ledPin, (input > 100)) " ?
Nice!
You missed the whole point with ternary operators. The real benefit of using the ternary operator is to use it as an argument to a function call for instance in your call to DigitalWrite to determine if it is going to be high or low. This way you don't have to declare an additional variable state just to save the result that goes into the DigitalWrite call.
Thank you so much.❤
Thanks for the note!!
С новым годом!
Thanks!
I find I’m using if/else to check a range and if in certain range turn on or off several functions or relays. Does the ternary work to do this? Something like if a > b turn on c, d, e, and turn off f, g, h
Great question! I think you could make a ternary work for this, but I believe the output is limited a single line of code. For example, in the video, we use digitalWrite() as one of the "options", I don't think you can have more than a single line of code to execute there... (but I could be wrong...) That being said, if you had a flag variable as the output of the ternary then that flag could control flow for several other functions perhaps.
@@programmingelectronics I’ll try that on one of the projects I’m working on now. If it works good as just a redirect for a function then I’ll use it on the two larger projects where they are almost nothing but IF statements. Although I’m not sure if I completely grasp the idea of functions yet, I’m at least understanding enough that I’m willing to try. For those curious why so many IFs, I’m making two controllers. One is based on exhaust gas temperatures to “map” how much water the engine gets to keep it from getting too hot. The other is the same idea for propane based on boost pressure since it is a mechanical fuel diesel to add power. Thanks! 👍
Amazing
Thank you! I hope you found it helpful!
Thanks this makes sense. How does it work if you introduce delays between states?
If you don't have a Kit-On-A-Shield, then you're not one of the cool kids and probably sit at the front of the bus.
Thanks Jim!
@@programmingelectronics I love my KOAS and still use it years later, especially when I'm showing other people what Arduinos can do.
Is this in the arduino reference
I do not believe it is listed on the Arduino reference page.
This really sorts of the mess of brackets required with if/else statements.
Totally agree!
@@programmingelectronics I've just cleaned up some code, in part making multiple "if" statements within a State Machine ternary operators. There have been a few odd errors come up but working through them.
I would writing
digitalWrite(ledpin,(input>100) ? HIGH : LOW);
I QUIT!🤯
I have figured it out!
I just absolutely don’t have the intelligence to wipe my a** let alone program whats left of this shotgun blasted uno!🤣
Would you please (now e-begging) do a video for morons on a wireless relay controlling an Arduino uno controlling a MD20A changing the Cytron Motor library where pin 2 and pin 3 (PWM DIR) are changed to pin 3 (PWM) and pin 4 (DIR). Now using pin 2 as an input. It is just a plain Jane 12vdc brushed motor. Go dir a at 255 stop a sec then go dir b at -255 and stop. I have tried everything I have knowledge to do. I got the motor running but just cant get the keyFob to operate anything but a bad attitude! Do I need a shield? (i know at this point the breadboard deff needs one😂🤣😂🤣) seriously tho. Im at my wits end. The message boards are so complicated i just cant even use em. I guess this kinda thing is for folks w/o learning disabilities. Wish I could post this sketch I have. (a true abortion) you would be thoroughly amazed it compiled. (I WAS)