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eds1275:
Here are some audio files, sans DX-7, for your listening pleasure.

pbj:

--- Quote from: eds1275 on August 05, 2014, 11:50:33 am ---Here are some audio files, sans DX-7, for your listening pleasure.

--- End quote ---

Well, damn, those sound legit. Nice work.

:cheers:

Vigo:
Wow...those are absolutely incredible sounds! :applaud:

PL1:
Great sounds, Eds1275. :applaud:

--- Quote from: Le Chuck on August 05, 2014, 10:30:24 am ---
--- Quote from: SavannahLion on August 05, 2014, 10:17:58 am ---At $6+ each for those field switches did you manage to find a cheaper source?

I really wanted to use them for my own but as many as I wanted, it would've blown my entire budget apart.

--- End quote ---

That was a concern, I think the ones I'm using are $6.38 and I need 12 of them. I have been searching for months for a less expensive retailer or viable sub. What found is that the money they saved me in building a reliable working chute system for ball management made the juice worth the squeeze. Your LED sensor solution is very elegant too and would be good for this application but I'm not familiar with it enough to know if it would work in the same manner. I don't need one for every outhole, just score holes. I just need one at the gate to shift states. If a score hole wasn't tripped first then the software knows it was a dead ball.

Still $70+ is a punch in the gut, especially considering how far IDS is able to stretch the same amount and get pretty much everything else working.

--- End quote ---

Thatpurplestuff's Skeeball build has me thinking about beam break circuits like this:

You should be able to wire 4 parallel sets of 3 LEDs in series as mentioned here to get the needed 12 sensors.

(Water-wheel = LED, you'll only need a small current-limiting resistor after the 3rd LED to drop 0.5v)

If you don't want to order the sensors from the company in India (here) that TPS did, Mouser carries the same LED and photodiode that he is using for less than $1.76 per sensor ($21.07 per build, plus the cost of the resistors) since you'd be ordering 10+ of them.

I'm also looking at this LED and photodiode combination that is only $0.53 per sensor ($6.36 per build :o , plus the cost of the resistors) since you'd be ordering 10+ of them.

Haven't ordered any of these LED/photodiode combos yet so I'm not sure how well they work or the exact resistors to use, but Samej71 mentions the resistor he used in his setup for R2 here and you can easily use an online LED calculator to solve for resistor R1. ;D

Hopefully this can bring your sensor price per build down to a more manageable level. :cheers:

The mounting geometry that TPS shows here for his sensor + RGB rings should work for your setup, though you may want to move the RGB LED to the top of the hole for indirect lighting.

Scott

ids:
PL1 - I'm no electrical guy, so, questions - is it not the case that, in the water wheel scenario, should something go wrong, all LED's tied to the same resistor can go *poof*? And is this not why it is often recommended to have one resistor per LED?

thx

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