Detector Building C

rayner
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Re: Detector Building C

Postby rayner » November 2nd, 2019, 11:07 am

10/13/2019
MAY STUDENTS ADD A MODULAR ANALOG-TO-DIGITAL CONVERTOR (ADC) TO THEIRMICROCONTROLLER?
No. External signal conditioning boards are not allowed.

So even though it makes no sense to limit the use of external ADCs (they are not external signal conditioniners), I guess they are now explicitly prohibited? Does that mean that no one can use a Rasberry PI since it doesn't have an onboard ADC?

builder2703
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Re: Detector Building C

Postby builder2703 » November 3rd, 2019, 2:55 pm

Can we use the DIKAVS 3950 NTC 10K Precision Epoxy Thermistor Temperature Sensor.

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Re: Detector Building C

Postby jinhusong » November 3rd, 2019, 3:32 pm

No. It is already water-proof.

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Re: Detector Building C

Postby pepperonipi » November 3rd, 2019, 3:59 pm

10/13/2019
MAY STUDENTS ADD A MODULAR ANALOG-TO-DIGITAL CONVERTOR (ADC) TO THEIRMICROCONTROLLER?
No. External signal conditioning boards are not allowed.

So even though it makes no sense to limit the use of external ADCs (they are not external signal conditioniners), I guess they are now explicitly prohibited? Does that mean that no one can use a Rasberry PI since it doesn't have an onboard ADC?
I think someone at Science Olympiad HQ made a big mistake with this decision. This decision makes no sense, because as you said, external ADCs aren't even external signal conditioners. The Arduino has its own built-in ADC, and since the Raspberry Pi doesn't have an onboard ADC, it limits many building avenues with it.
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kendreaditya
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Re: Detector Building C

Postby kendreaditya » November 4th, 2019, 10:40 am

10/13/2019
MAY STUDENTS ADD A MODULAR ANALOG-TO-DIGITAL CONVERTOR (ADC) TO THEIRMICROCONTROLLER?
No. External signal conditioning boards are not allowed.

So even though it makes no sense to limit the use of external ADCs (they are not external signal conditioniners), I guess they are now explicitly prohibited? Does that mean that no one can use a Rasberry PI since it doesn't have an onboard ADC?
I think someone at Science Olympiad HQ made a big mistake with this decision. This decision makes no sense, because as you said, external ADCs aren't even external signal conditioners. The Arduino has its own built-in ADC, and since the Raspberry Pi doesn't have an onboard ADC, it limits many building avenues with it.
I sent in an FAQ to confirm their statement, and its been more than 2 weeks and they still have not responded.

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Re: Detector Building C

Postby YeagerTheCat » November 4th, 2019, 11:38 am

No. It is already water-proof.

Jinhu
Ahhh ... I think personally this is perfectly fine. There are a pile of thermistors in epoxy packaging. Just because it is epoxy dipped doesn't mean it is really waterproof :-)

YtC

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Re: Detector Building C

Postby YeagerTheCat » November 4th, 2019, 11:40 am

10/13/2019
MAY STUDENTS ADD A MODULAR ANALOG-TO-DIGITAL CONVERTOR (ADC) TO THEIRMICROCONTROLLER?
No. External signal conditioning boards are not allowed.

So even though it makes no sense to limit the use of external ADCs (they are not external signal conditioniners), I guess they are now explicitly prohibited? Does that mean that no one can use a Rasberry PI since it doesn't have an onboard ADC?
I think someone at Science Olympiad HQ made a big mistake with this decision. This decision makes no sense, because as you said, external ADCs aren't even external signal conditioners. The Arduino has its own built-in ADC, and since the Raspberry Pi doesn't have an onboard ADC, it limits many building avenues with it.
You know that is really interesting - I don't think I have ever checked a pi for it and I always thought it had something 8 or 10 bit on there. Guess it makes sense that it doesn't. Yes this would knock out RPis if that was true.

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Re: Detector Building C

Postby nicholasmaurer » November 4th, 2019, 3:35 pm

10/13/2019
MAY STUDENTS ADD A MODULAR ANALOG-TO-DIGITAL CONVERTOR (ADC) TO THEIRMICROCONTROLLER?
No. External signal conditioning boards are not allowed.

So even though it makes no sense to limit the use of external ADCs (they are not external signal conditioniners), I guess they are now explicitly prohibited? Does that mean that no one can use a Rasberry PI since it doesn't have an onboard ADC?
I think someone at Science Olympiad HQ made a big mistake with this decision. This decision makes no sense, because as you said, external ADCs aren't even external signal conditioners. The Arduino has its own built-in ADC, and since the Raspberry Pi doesn't have an onboard ADC, it limits many building avenues with it.
The challenge is that the average ES cannot tell the difference between a student who buys a probe with a pre-built board that does the temperature curve math for them vs. a student who is simply using an ADC. By forcing students to use only microcontrollers and basic components, they know students are building and calibrating their own devices from scratch. I don't like the limitations this FAQ imposes, but I think it was probably necessary.
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TheMysteriousMapMan
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Re: Detector Building C

Postby TheMysteriousMapMan » November 4th, 2019, 3:51 pm

With these clarifications, would an Arduino Uno still work? I'm better with the microcontroller software/circuit construction than the microcontroller hardware.
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kendreaditya
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Re: Detector Building C

Postby kendreaditya » November 4th, 2019, 4:58 pm

With these clarifications, would an Arduino Uno still work? I'm better with the microcontroller software/circuit construction than the microcontroller hardware.
Yes, with the spesifcations, the Uno is legal.


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