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by YeagerTheCat
October 14th, 2019, 7:05 pm
Forum: Detector Building C
Topic: Detector Building C
Replies: 47
Views: 2863

Re: Detector Building C

To start with it was just asking about the nature of the "external" circuitry and whether it is acceptable if student designed and produced (bread board or otherwise). 50 characters cramped my style :-)
by YeagerTheCat
October 14th, 2019, 11:12 am
Forum: Detector Building C
Topic: Detector Building C
Replies: 47
Views: 2863

Re: Detector Building C

I have posted a question to the FAQ to clarify for what it is worth.
by YeagerTheCat
October 14th, 2019, 10:34 am
Forum: Detector Building C
Topic: Detector Building C
Replies: 47
Views: 2863

Re: Detector Building C

But that makes no sense. So if the student takes a little AVR and uses it on a bread board in place of the ardunio? If you use a TI thingy, and that uses 12bit, is that an upgrade tothe arduino? ADC isn't signal conditioning, it is the thing that reads a voltage :-) If they use a resistor in series ...
by YeagerTheCat
October 14th, 2019, 10:08 am
Forum: Detector Building C
Topic: Detector Building C
Replies: 47
Views: 2863

Re: Detector Building C

2. ADC: Arduino built-in ADC only 10 bits, too tight for 0.1 degree C, so plan to use 16 Bit ADC (ADS1115). Isn't this not allowed, according to the FAQ? (Section: 3 / Paragraph: a / Line: 1) 10/13/2019 MAY STUDENTS ADD A MODULAR ANALOG-TO-DIGITAL CONVERTOR (ADC) TO THEIRMICROCONTROLLER? No. Extern...
by YeagerTheCat
September 18th, 2019, 7:11 am
Forum: Detector Building C
Topic: Detector Building C
Replies: 47
Views: 2863

Re: Detector Building C

Absolutely. It is part of the fun/misery :-)
by YeagerTheCat
April 22nd, 2019, 8:51 am
Forum: 2019 Build Events
Topic: Detector Building C [TRIAL]
Replies: 16
Views: 2625

Re: Detector Building C [TRIAL]

That is also a question without end :-). There are of course other options to measure temperature with (RTD, thermocouple). There are other analog output sensors, but it becomes a little tough to work out if they then fit within the rules in terms of it being automatically adjusted/calibrated.
by YeagerTheCat
April 18th, 2019, 9:03 pm
Forum: 2019 Build Events
Topic: Detector Building C [TRIAL]
Replies: 16
Views: 2625

Re: Detector Building C [TRIAL]

No right answer to that, but a basic Arduino is a decent place to start.
by YeagerTheCat
April 9th, 2019, 12:27 pm
Forum: 2019 Build Events
Topic: Detector Building C [TRIAL]
Replies: 16
Views: 2625

Re: Detector Building C [TRIAL]

Tough specs for this thing. +/-0.2C resolution? Will be interesting...
by YeagerTheCat
January 21st, 2019, 7:24 pm
Forum: Mousetrap Vehicle C
Topic: Triggering the traps
Replies: 10
Views: 929

Re: Triggering the traps

Thanks everyone - good info.
by YeagerTheCat
January 19th, 2019, 11:44 am
Forum: Mousetrap Vehicle C
Topic: Triggering the traps
Replies: 10
Views: 929

Re: Triggering the traps

We don't especially want to trigger them separately other than they are separate traps and we get a little more out of the traps if both are locked down. If we have to use a pencil vertically it requires two hits, if you can lay the pencil across them of course that works but don't think that is leg...

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