Very pleased with it, definitely worth to buy!
For Tic Tac Toe Soldering Kit
Even with the shipping fees to Europe this was worth the money I've spend! The option of not getting any LED's was great, since I got lots of 3mm LED's here anyways and I chose green and amber as colors. The footprints are all chosen well, no pads felt too small here as they might do in other kits.
The PCB design is very clean, the corners are nicely rounded off, but I'm missing some mounting holes to be able to mount a case to it, to hold the battery in place. There's a very detailed step by step guide that I almost completely ignored. The two 100nF 100V capacitors seem a bit unnecessary or over the specs, but thinking that 4 LEDs are turned on through 2 pins on a 120 Ohm resistor, this might be necessary.
But why the 4/5 stars then? My Atmega328 came with unset fuses, so instead of using the external 16MHz crystal, the Atmega ran on the internally generated 1MHz instead. Which meant the startup animation took 32 seconds to finish. I quickly soldered on an ISP and FTDI header to work on the firmware, since it doesn't check if anyone reached the goal of 3 in a row yet. Luckily the Arduino code is shared and open source, so I was able to embarrass myself in front of an audience and program said function.
The code can be found here https://github.com/davedarko/tictactoe/tree/main
Response from Jim Heaney | April 16, 2021
Glad to hear you enjoyed the kit! I'll definitely make a note to add mounting holes on the next revision. Maybe also adding an ICSP header would be beneficial.
Not sure what happened with the fuses, I set those when I flash the code. I'm glad you were able to fix it though! If anyone else happens to find their chip is taking long, let me know and I'd be happy to send a re-programmed replacement.
-Jim
