Search found 39 matches

by YeagerTheCat
January 14th, 2020, 9:45 am
Forum: Detector Building C
Topic: Varied Resistance for a Certain Temperature
Replies: 6
Views: 747

Re: Varied Resistance for a Certain Temperature

I have the same problem, if someone has determined the cause, please consider sharing. I think it is because either my sensor is trash or my waterproofing is sketchy. If the resistance drops, then you likely have water getting into your connections to the thermistor. If the resistance goes up, you ...
by YeagerTheCat
January 13th, 2020, 8:22 pm
Forum: Detector Building C
Topic: Detector Building C
Replies: 212
Views: 23126

Re: Detector Building C

I have a quick question, say I were to be running the detector of an arduino, and I coded it on a raspberry pi, can I use a portable usb charger to power the raspberry pi when I set the temperature ranges for the lights? Thanks! If you don't use mains power I certainly see no reason why not. Sounds...
by YeagerTheCat
January 13th, 2020, 9:46 am
Forum: Detector Building C
Topic: Operational Knowledge of Basic Device Components Test
Replies: 4
Views: 780

Re: Operational Knowledge of Basic Device Components Test

The rules are pretty open ended. Relationships between voltage temperature and resistance ... well, that hints at the sensor types and materials. LED operation, ok but basic device components end up being half circuit lab and presumably data relationships is sort of half statistics. The tie breaker ...
by YeagerTheCat
January 6th, 2020, 3:35 pm
Forum: Detector Building C
Topic: Detector Building C
Replies: 212
Views: 23126

Re: Detector Building C

Why did they say that my examples (graphics library, serial comms library) were banned then? I can't find any FAQ that specifically mentions any libraries. Maybe they changed the wording? Anyway, I'd just like to note that we're at 21 FAQ's, many contradictory and even self-contradictory. I'd think...
by YeagerTheCat
January 6th, 2020, 6:46 am
Forum: Detector Building C
Topic: Detector Building C
Replies: 212
Views: 23126

Re: Detector Building C

That's just my strict interpretation of the rules. I don't actually have any idea if it would be allowed, since they made up a term ("preset program library") that does not have a definition. I would think that graphics libraries are not "preset," but their response proves otherwise. At this point,...
by YeagerTheCat
December 16th, 2019, 12:31 pm
Forum: Detector Building C
Topic: Detector Building C
Replies: 212
Views: 23126

Re: Detector Building C

Hey I will give the cap thing points for thinking outside the box. Kudos... interesting.
by YeagerTheCat
November 30th, 2019, 7:34 pm
Forum: Detector Building C
Topic: Temperature Sensors
Replies: 2
Views: 638

Re: Temperature Sensors

I have a couple of questions about temperature sensors used in this event. 1. Are we restricted to using the temperature sensors under the "legal" list or are those just some examples of legal sensors? (I assumed they were just some examples) 2. Would a TI-LM35 be legal? 3. Is a temperature sensor ...
by YeagerTheCat
November 4th, 2019, 11:40 am
Forum: Detector Building C
Topic: Detector Building C
Replies: 212
Views: 23126

Re: Detector Building C

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...
by YeagerTheCat
November 4th, 2019, 11:38 am
Forum: Detector Building C
Topic: Detector Building C
Replies: 212
Views: 23126

Re: Detector Building C

jinhusong wrote:
November 3rd, 2019, 3:32 pm
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
by YeagerTheCat
October 25th, 2019, 4:38 am
Forum: Detector Building C
Topic: Detector Building C
Replies: 212
Views: 23126

Re: Detector Building C

I got a response to my question, but it was in the form of an update to the thermocouple question. External student designed circuits are permitted given they are DIP components and breadboards … which isn't what we wanted to hear.

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