Worklog GS2 rev2

Gman

RTFDS
Staff member
.
.
.
.
.
Joined
Feb 25, 2016
Messages
1,007
Likes
2,187
GS2 rev2!

I started working on this a few weeks ago and I had some free time this weekend to make some good progress. The GS2 design is over 2 years old now so I basically started from the beginning on this. I'll be using the PS2PMS and hopefully the stock USB-C board (if it doesn't fit I'll have to redo the layout though I'm hoping I won't have to).

I'll also be using a custom PS2+ where I will modify the firmware to have an I2C master so I can control the audio amp and LCD menu dac like how I did on the 2DC. I haven't used the new PS2+ code so I'm excited to try it out.

The trim is an Advanced PS2 trim from the guide, but cut much closer to the max lines. I am able to rotate the motherboard so I don't have to rewire a custom video dac.

Next part I am working on is the controller PCBs. It's a similar build to the 2DC in that the only custom parts will be the controller. Everything else is utilizing the same power assets. This will allow me to finish it quicker and know that the features will be tested and solid.

Annotation 2019-10-13 121620.PNG.jpg

20191013_090308.jpg

20191013_090339.jpg

20191013_120230.jpg

20191013_121228.jpg
 

Gman

RTFDS
Staff member
.
.
.
.
.
Joined
Feb 25, 2016
Messages
1,007
Likes
2,187
This is just sexy AF. Makes me want to try my hand at the PS2 again.

Also, do want to hold that case. Looks so comfy to play. So thin.
The ps2 can be trimmed much smaller now. I still believe it can be trimmed small enough to fit in a PSP O.o
 

Koboid

.
Joined
Oct 13, 2019
Messages
11
Likes
8
The ps2 can be trimmed much smaller now. I still believe it can be trimmed small enough to fit in a PSP O.o
That sounds great for the future of PS2. Sir, will you publish those trims in the ps2 trimming guide?
 

StonedEdge

.
.
.
Joined
Nov 16, 2018
Messages
114
Likes
423
Location
Japan, Tokyo
Portables
2
Looks extremely good, the PCBs look compact too. Would love to build one myself someday, maybe even try relocate the video DAC like you have in previous portables. Would love to see that trim added to the guide, similar to the LMAO V2 and LMAO trims for the Wii.

Great that you don’t have to do it for this one though. Incredible work as per usual!
 
Last edited:

Gman

RTFDS
Staff member
.
.
.
.
.
Joined
Feb 25, 2016
Messages
1,007
Likes
2,187
PCBs are in from JLC. I hand soldered them in an effort to save money on prototypes. Haven't even touched the PS2+ code yet and I have to remap pretty much all the pins, hope it works

20191024_181354.jpg
20191024_181345.jpg
 

Gman

RTFDS
Staff member
.
.
.
.
.
Joined
Feb 25, 2016
Messages
1,007
Likes
2,187
PS2+ has a great framework so it wasn't too much work to remap the chip. Then I included my PIC i2c master driver and added in the control for the LM49450 digital audio amp and MCP4706 dac (really great IC. It's tiny 6 pin I2C 12-bit dac and it's 73 cents). By polling the controller state responses for the correct button combo, then when the combo is matched, it sends the new data over i2c.

I used R1 + Tri + DPAD for volume and R2 + Tri + Dpad for the screen controls. Seems like it works flawlessly but I will need some play time on it once the portable is assembled.

Nothing wrong with the analog stick calibration in stock PS2+ but I hard coded my own joycon stick range values and added parameter for deadzone and axis inversion in the code.

20191027_155904.jpg
 

BocuD

.
Joined
Jul 21, 2016
Messages
451
Likes
501
Location
The Netherlands
Portables
2
Damn this looks great! When looking at that comparison pic with the GWii i have to ask lol, how thin is it? Also what buttons are you using for the dpad and "abxy" (lol idk how to type the playstation button thingys)
I need to copy that battery cover thing sometime btw, loved it on the original GS2 as well.
 

Gman

RTFDS
Staff member
.
.
.
.
.
Joined
Feb 25, 2016
Messages
1,007
Likes
2,187
Damn this looks great! When looking at that comparison pic with the GWii i have to ask lol, how thin is it? Also what buttons are you using for the dpad and "abxy" (lol idk how to type the playstation button thingys)
I need to copy that battery cover thing sometime btw, loved it on the original GS2 as well.
I am using PS vita dpad and action buttons. OGS2 used psp action buttons. these ones have rubber pieces on them so they feel good using thin tact switches. I think the main body should be around 25mm.
20191027_211128.jpg
 

StonedEdge

.
.
.
Joined
Nov 16, 2018
Messages
114
Likes
423
Location
Japan, Tokyo
Portables
2
I am using PS vita dpad and action buttons. OGS2 used psp action buttons. these ones have rubber pieces on them so they feel good using thin tact switches. I think the main body should be around 25mm.
View attachment 9695
wow. Looks great. What colour are you thinking for the finish? Would you mind sharing the link to the orange SMD tacts?
 

Gman

RTFDS
Staff member
.
.
.
.
.
Joined
Feb 25, 2016
Messages
1,007
Likes
2,187
GS2 is just about together except for a few finishing details like not having the proper headphone jack and m2 nuts on hand.

Not a single drop of hotglue used :awesome: because I ran out a few weeks ago and haven't restocked.

20191102_130408.jpg

20191102_160933.jpg

20191102_160946.jpg
 

Pacal

.
.
Joined
Jul 30, 2016
Messages
124
Likes
224
Portables
RDP 64
this is really nice,you make them look so easy to make :).
it is possible to use the switch joysticks with the regular ps2 controller?
 

GingerOfOz

no wario
Staff member
.
.
.
Joined
Dec 16, 2016
Messages
998
Likes
2,217
Location
The Oregon Wildlands
Portables
3
GS2clean4me
 

MRKane

.
.
Joined
Nov 5, 2017
Messages
285
Likes
199
What did you go with for your cooling solution? Don't tell me this is passively cooled majicks!
 
Joined
Dec 17, 2019
Messages
26
Likes
11
Looks awesome gman.

one question: what 3d printer use? The case quality is amazing.
 
Top