Also, would it be possible to also add iNES header to the dumps?
Would you all be so kind as to check my solder job so far? I know it is not the best, but does anyone see anything on the parts that are soldered so far that would be of any issue?
I'm wondering if that's the kind of thing you would be willing to integrate upstream.
my solder job so far?
would it be possible to implement reading of the SD card through USB rather than having to remove it to acquire files? This would be a time saver.
You need to set your soldering iron to a higher temperature since some of the solder points like on the AMS1117 voltage regulator and some of the GND pins look a little "dry".If you have a spare PCB you can try different solder iron temperatures there and see what works best.Are you using the newer lead-free solder or the old Pb60Sn40 type? But overall it's fine and your Cart Reader most likely will work. Just do yourself a favor and before connecting the USB cable the first time check for a short between VCC and GND using a multimeter, better to be safe than sorry.
Your placement of the clock generator is correct. Every multimeter has a diode test you can use to check if two points are connected to each other. You just set the multimeter to the appropriate mode, see the instruction manual, and then touch one of the two probes to the GND pin and the other to the 5V pin of the Arduino/Cart Reader and then it should not *beep*. If it does make a sound then there is a connection between the two points, which would be bad and needs to be fixed. The Arduino/Cart Reader needs to remain off during this test.As for the NES adapter, start with soldering the 4 corner pins so that the NES slot is centered then solder the rest of the pins. You will have to bend each pin a little bit towards the middle so they make contact with the PCB.Please wear eye protection since the pins can fling back into their original position and throw hot solder at you.As for using the NES adapter, connect it to the NES cartridge, both the "Front" of the adapter and the label of the cartridge facing you and then plug them together into the Cart Reader.Then follow these instructions for dumping: https://github.com/sanni/cartreader/wiki/Dumping-NES-Games