Topic: ScratchCrumble testing release

Tagged: Scratch

This topic contains 61 replies, has 6 voices, and was last updated by Simon 4 years, 1 month ago.

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June 18, 2015 at 7:23 am #2406
Simon
Moderator
Here is the testing release of ScratchCrumble (windows only)
ScratchCrumbleDev
Load Scratch 1.4 – open sensing blocks and right click on last block – enable remote sensor connections

Run ScratchCrumbleDev and make sure you get a connection indicated

As a default condition, A,B,C and D are set as digital inputs (value of Hi or LO)
As soon as you use one as an output, it can’t be used as an input unless you restart the handler

To see the inputs, choose A,B,C or D from 2nd last sensing block – tick box to make value visible on stage

In Scratch, use broadcasts to control Crumble
e.g broadcast All Off
broadcast set A HI
broadcast set B LO

broadcast set motor 1 100
sets motor 1 to maximum
broadcast set motor 2 -50
sets motor 2 half-speed in reverse

Any feedback welcome 🙂
- This topic was modified 4 years, 4 months ago by Simon.
- This topic was modified 4 years, 1 month ago by Simon.
June 18, 2015 at 7:59 pm #2410

drkempton
Participant

Hi Simon,

Tried it out on my Win 7 laptop. Worked a treat. Well done.
Does your ScratchCrumbleDev prog load any software on to the Crumble? I am guessing that it might do.
Any plans to drive the motor ports?

Regards,

David.

June 18, 2015 at 9:43 pm #2412

Simon
Moderator

Scratch controls the Crumble by sending commands over the USB one at a time – so no Crumble program is created.

the plan is to eventually compile the Scratch program into a Crumble program (as long as the Scratch program doesn’t use features that the Crumble doesn’t understand of course)

It already does motors – I jsut forget to say 🙂

June 19, 2015 at 2:27 pm #2414

drkempton
Participant

Yep, got that working too. Even deduced that to reverse the motor direction you can use a minus sign.

Have you got the A B C D inputs working yet? That would be brilliant!

David.

June 19, 2015 at 2:36 pm #2416

drkempton
Participant

Ok, I should have read your first post in this new sub forum. Sorry. But look forward to when you do get the inputs working. 🙂

Thanks,

David.

June 19, 2015 at 6:28 pm #2417

Simon
Moderator

Should be available later on tonight 🙂

June 19, 2015 at 7:10 pm #2419
Simon
Moderator
Digital inputs now available as sensor values – re-download the updated handler
ScratchCrumbleDev.exe
Simon
- This reply was modified 4 years, 4 months ago by Simon.
June 19, 2015 at 9:14 pm #2421

drkempton
Participant

Hi Simon,

Works for a while then tends to crash. See screen grab attached.

However well done – looks very promising!

David.

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June 19, 2015 at 9:17 pm #2423

Simon
Moderator

Do you have a copy of the Scratch script you were running at the time please?

Simon

June 19, 2015 at 10:05 pm #2424

drkempton
Participant

Hi Simon,

It was the same as your example with the Motor1 except that I was using input A.

David.

June 19, 2015 at 10:08 pm #2425

drkempton
Participant

BTW I found that I had to use “HI” rather than “True” to make the sensor input work.

June 20, 2015 at 6:56 am #2426

Simon
Moderator

I left mine running overnight and it crashed at sometime as well running a different script (BTW D doesn’t work properly in current version)
I changed to using HI / LO for current Crumble syntax compatibility .

July 3, 2015 at 1:12 pm #2458

drkempton
Participant

Hi Simon,

Did you get any further with debugging the crash problem?

Regards,

David.

July 3, 2015 at 5:38 pm #2460

Simon
Moderator

Sorry no (Home DIY took over my life for a week)
I’ll see waht I can dtermine over the weekend (and add some more features if I can)

Smon

July 5, 2015 at 7:44 am #2464

Simon
Moderator

Try the latest release – I’ve had it running overnight without failure – lets see what happens at your end

ScratchCrumbleDev
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