I kind of want to build an entertainment center....
Have it so that it has some good baby proofing features to boot.
I did that years ago. Still use it.
So I started making my own RGB to YPbPr converter. Holy shame I should have chose different chips. They were so tiny. I tried tracing some of them and I'm not confident that they're not bridged. The smallest one I needed to solder, I did today, but it's pretty off. It's not bridged, but they're connected to the embedded wires instead of the pad. I checked each pins to see if they're bridged, they're not, but when I was looking at the capacitors, they're all connected, but that should be right now that I'm thinking about it. And dang that chip was tiny. The second tiny chips, I have one of them slightly off, so pins are slightly connected to each other. There's 7 million ohms between them, so hopefully my physics is right and electrons will take the path of least resistance. I have the chips in, it's time to get the potentiometer in. I'm going to do the resistors next, then the capacitors. Those will be easier, since surface mount resistors and capacitors aren't that bad to solder. I'm also not grounded, so I might have killed the chips with static electricity. Testing this thing is going to be "fun".
Me and my dad started on my cab. I picked up a Sega Astro City cab. The control panel was cracked. We fixed it with a fiberglass body fix. We're still not sure if we should brace the control panel with a brace or let the fiberglass try. I put some bondo on the outside and sanded it down. The T.V. and speaker is going to be a pain. I acquired a 27inch Wega. I'm happy in not RGB modding it. I'm going to get my consoles hooked up to it which gives me time for me to figure out my video converter that I'm working on above. I have to find a way to get the front T.V. control panel out. Or find a way to extend the IR sensor and buy a remote. I'm also scared no nuggets. It's been unplugged for a year, but still, the capacitors tend to charge themselves from the air. I also need to buy an amp to connect to the speakers. We will probably start painting the thing in the next few days.
I bought a GPIO extender chip for my raspberry Pi. I had a feeling that arcade boards send out 5V from the buttons, but I didn't get that confirmed until recently. My idea of using shift registers won't work since I can't send 3.3V up to the board from the Pi to register a no command. I'm going to try switching pins from read to ground (Write 0) to register a button press. I can't send 5V to the Pi's pins, but the chip I'm using can handle 5V when it's powered by a 5V power supply so that would save me from figuring out the resistors I would need. If that doesn't work period, then I have to do a register to transistor array. Which will be annoying since the most I could find for a transistor array is 7 transistors. I need 32, so that's 5 chips. Plus the shift registers. I'm looking at a big package for a 64 bit register plus the 5 transistor array chips. Annoying.