Spark/SparkCE Optical Joystick Sensor for JLF

Price is perfect imo. I cant wait to grab a few more. Any difference from the one I have?

Nah, I think the LED spacing is the same. The sensitivity may be just a hair different since the pull down resistors will have a different value, and the housing is molded plastic instead of milled delrin, but there’s no change to how it looks or works.

Now that I know that the pull down values affect sensitivity, it also means that hardcore hackers can tweak the sensitivity to their liking by replacing four surface mount (0805 size) resistors. Obviously, they’re SOL if they break it trying, but its an option for the die hards.

As a great man once said: “I love it when a plan comes together”. It’s really cool to see how far this project has come and how close (fingers crossed) it is to the finish line. Congrats.

price is fine. beats paying $100 plus for a sanwa. thanks toodles, you rock!!!

Price is fine.

Maybe Toodles’s flash will drop the price on some of the Ascii sticks on eBay? I eagerly await one.

considering all the work/time you’ve put into these, i back you all day on the price man. gratz on finally getting them figured out.

“price is too expensive for my hundreds of hours of labor, designing, talking to fab shops, testing, shipping to beta testers” - toodles

honestly. 55 is a steal. dont be so hard on yourself especially because this is a brand new venture, hell ide pay 65. Im sure you’ll be able to drop the price to dirt cheap once you get production running smoothly like the chimp boards (35 is dirt cheap for all its functions, compared to the oldschool cthulu boards and imp boards) so dont fret it that you have to sell it for a little bit of an “expensive” price at first

$40 - $45 was what I was hoping for. I think the anticipation is so high that Toodles will easily sell his initial offering at $55. I will probably wait till they hit $45 then purchase 2 or 3 at once. Can’t wait! It would be cool if they came with a spring that was ideal (like flash1) for opticals. I don’t like multiple springs because the tension feels inconsistent through the full range of motion. It will be interesting to see what kind of spring solutions the SRK community comes up with.

price’s totally fine in my opinion.

Little more then I was hoping for but definitely worth it and understandable. I just hope there are plenty of these to go around cause I don’t have money for it at the moment. Great job Toodles. Much respect for all your hard work.

Hey, it’s not like they will wear out.

Sign me up. I have a project just perfect for one of these…

Price sounds good toodles ?

Got the 11k, 12k, 13k, 14k, and 15k resistors in. Took 5 of the boards from the large fubared production batch, tested them as-is (2 had problems with a single direction, 1 each had problems with 2, 3, and 4 directions), replaced the resistors in each one with one of the new value resistors, and manually adjusted any of the leds that looked skewed. The result is that all five work properly. Mucho, mucho happy about that.

All that is left now is to determine which value resistor to use for reworking them all, based on the sensitivity they give me. Sorry, I may go a little bloggy here, but I’m mostly thinking out loud in case anyone has any brilliance I’ve overlooked. Since I dont have any equipment to measure throw distances in the stick, I have to either go by feel, or try to use a specific setup to get a good feel. Going by feel is rather unreliable, so Im hoping to find a setup that helps me pinpoint the perfect sensitivity.

The first option is to use the stock square gate and shift it to 4 way mode. If I ride the gate, then in the diagonal spot between any two directions use the sensitivity that always has one direction active but not both, then the sensitivity would be perfect for 4 way, working exactly as it should, and activating the cardinal direction exactly half way between nuetral and that cardinal direction’s corner. The problem with that route is the math when the stick is back in 8 way mode; going from neutral to a side wouldn’t activate until it has travelled sqrt(2)/2 of the way, about 70.7% of the distance. That just doesn’t sound very sensitive.

I could use one of my circle gates, and try to get the sensitivity so that each of the eight directions takes up the proper 45% of the outer edge? That’d work awesome for GT-C users, but but the math to figure out how it’ll be for the larger number of people who use square gates would be (understatement) difficult.

Sigh. Last minute jitters before I finalize this bitch. I’ll make a call on the resistance tonight, do a set of 10 by hand tonight to test and bless, and then have a monkey start cranking out the rework starting tomorrow.

;_; i hope i can get one for christmas or sooner… can you get DC-DC converters to use with MC Cthulhu PSX mode (i’m not sure if i can buy it here on Chile)

Thanks!

Exciting stuff Marcus!

14k ohm it is. Doing a couple of more to put in the cabinet to play on.

I did some playing with the 4 way gate, and discovered something weird. If the board was more sensitive, so shorter distance from neutral to activate, then there wouldn’t be any overlap in the center where it transitions from one cardinal direction to the next. Less sensitive boards had overlap. Freaking weird.

The 4-way test seems sound to me. But are you saying that it’s a total signal drop in the more sensitive resistors when the shaft is going from right to up? Are you hooking this up to a computer so that you can look at the calibration grid for Game Controllers?

Hey Toodles,
Questions about 3.3v to 5v convertors for PS2 compatibility.

From the descriptions listed for the following boards, do you think that these will be suitable for use with the spark?
This one puts out 100 mA

This one cost twice as much but outputs 300mA.