Here is my post from the old Digimon Himitsu forum.
Today's Pendulum mod
I recently got a new Pendulum 3.0 from Duke, so I was willing to be a bit more adventurous with my old, damaged one. (
This one if anyone remembers =P.)
I wanted to rig up something so I could control the pendulum switch from the outside. And I actually found a completely non-destructive way to do it. Both ends are screwed in place, so if I just remove those parts and screw something else there instead, it should be possible to put everything back in the end.
That's enamelled wire, so hopefully it won't short anything. And that really is the background from a V-Pet ver1 (the screen was too dim for me to see before I put that in there).
It is working: I can power up the training by pressing the button. I'm thinking of trying to use computer-controlled signals to get a precise idea of what the rules are.
Anyway, I got down to it today, and you are correct. It is how many times you shake it.
I tweaked my battle/Jogress device to control the modded Pendulum switch. New picture:
It's not all of that circuitry, only the lower half of the board. So not as bad as it looks, hehe. The four wires on the left go to the Pendulum and the batteries (which are underneath the Pendulum). The two on the right go to my computer's headphone socket. And the big red one in the middle is an oscilloscope probe.
Down to business then. All measurements were taken for 3.0 Mokumon. (I had to reset it a few times due to it evolving and/or running out of DP.)
Electrically, it just counts the number of times the switch is closed (well, opening it again the last time may be required, I didn't check that). I checked quite carefully that it behaved at different speeds, and did a few with irregular patterns to make sure. It seems to be pretty forgiving.
To obtain consistent results, the duration of the contact must be less than 60ms and the space between contacts must be more than approx 70ms. I don't think either of those will be a problem in normal use. More of a problem may be making sufficient contact in the first place: if the pendulum is pressed hard against the pad it gives a resistance of approx 200R, and I was using 3K in my circuit, but it may be that a light touch for too short a time won't work. (There does appear to be a capacitor to discharge. When the contact is broken, it then recharges from the Pendulum's power supply.)
This is what I got for Mokumon (number of "shakes", shot pattern):
Code:
00 11111
01 21111
02 22221
03 22111
04 21212
05 12111
06 11111
07 12121
08 21122
09 22222
10 11121
11 11111
12 22212
13 21112
14 22222
15 22222
16 22222
17 22222
18 22222
19 11111
20 11111
21 22222
22 22222
23 22212
24 12112
I don't think it's possible to shake that high during normal use. But it might be.
;; *was wrong* I always seem to get better results on the 1.5 when shaking irregularly versus shaking regularly on the 3.0, but I guess I was just randomly hitting the right number. ^^;; Nice work.