Episode 16 - micro:bit Fidget Spinner Speed Test

[@MicroMonsters]

add your speed records here, 666 to beat

[@nuttymuffin2574]

MicroMonsters hey just ganna say you can pin a comment so that it's always at the top there for your comments about the video have people see them rather then finding them after a while

[@henrygage2831]

MicroMonsters 500th sub!

[@نورةخان]

I want your account in twitter to ask you some quistions about my project , please ?

[@sparkyispog]

i got 500

[@kadurim]

Good example of measuring RPM with BBC:MICROBIT. Could you post in comments the Javascript code? Would be very helpful.

[@nztuber]

Great video, thanks! New viewers, if you're writing the code yourself by following the video, watch out that PXT/makecode no longer treats the division block as integer division, so you'll need to do this rounding down/quantisation of the current light level yourself. You can use the "floor" function (found in "math" as an option of the "round" block), or you can use the integer division function (found in "math" as an option of the "square root" block). If you follow the link to MicroMonsters' code, you'll see that it's already corrected to do integer division.

[@BrianThomas]

Very nice! How would you do it if you wanted to watch a kids bike wheel to see how fast they were going?

[@숙제했니]

Thank you~~ I get an idea from this video for my wind speed measuring project! ^^

[@mrsvanheerden179]

Hi guys, awesome project. Do you have a close up picture or diagram of the bread board set up that we can access somewhere please?

[@profProsky]

Very nice work and super helpful. thanks. Hey a suggestion. Substitute your rpm value into the frequency variable in the tone block and add a speaker! Might not be annoying. best tefman

[@MicroMonsters]

yeah that would be fun we will have to have a go

[@therealcaldini]

i love your video. please make more.

[@tascha9042]

I want to I can ask my dad

[@bibliotek42]

That was extremely nerdy, and absolutely fascinating! How many hours did it take you to sort out the code?

[@MicroMonsters]

30 mins to write ........2-3 hours to iron out some fun bugs as ever

[@evieharrison4801]

In the JavaScript code, line 35 of the code doesn’t seem to be working for me. I’ve created the ‘lasttriggertime’ variable but it shows up saying that it’s an unknown or unidentifed variable. This means that when I try to flip back to blocks it say the code will not work and it can’t convert. Can you help?

[@MicroMonsters]

Hi, did you copy the code by clicking edit on this link: makecode.microbit.org/15356-29310-37436-44268 line 35 in that link is: serial.writeValue("RPM", calculateCurrentRPM(lasttriggertime, currenttime)) and here that seems to work fine?

[@juhaheikkila]

Why the forever loop is with build in pause ???

[@MicroMonsters]

yes it is annoying isn't it, I'm sure there is a good reason but I don't know what it is

[@ytfp]

Cute earrings! Awesome experiment!

[@yabbaso]

Brilliant work! :-)

[@TraceguyRune]

I don't even have a micro:bit .... LOL. I have A couple RB Pis and an Arduino

[@thenugget3671]

And???

[@sjoerd104]

nice video, i suscribed

[@zazzrameriszzz5594]

I like micro bit

[@thenugget3671]

So what does that information give us?

[@ru1355]

wow

[@boltengineyt3462]

Yo

[@tascha9042]

Yo tash here

[@cohaniskis3175]

WHY IS THE SCORE 666 LOL!!!!

[@ytfp]

Nice but your microphone is so oversensative I can't watch because it sounds like your talking with a mouthful of spit.

[@prameelarkutty3691]

your videos are good but u do not explain so i did not like and subscribe