Retro Gaming Handheld Without a PCB -- Episode 384

awesome project, its so bare bones. its a skeleton boy.
I'm currently recreating your project. Im curious, the code you linked, is it already configured for the resistor values and the pins of the attiny85?
as you said in your video you had to edit the code.
Also, when i try to compile the sketch it says programmer not responding

i have the arduino set under tools, programmer, "arduino as isp"
ive selected attiny85 as the board and the processor, i have the clock set at "internal at 16MHz"
Id appreciate anyone's suggestions

Arduino: 1.8.9 (Windows Store 1.8.21.0) (Windows 10), Board: "ATtiny25/45/85, ATtiny85, Internal 16 MHz"

Sketch uses 7928 bytes (96%) of program storage space. Maximum is 8192 bytes.

Global variables use 374 bytes (73%) of dynamic memory, leaving 138 bytes for local variables. Maximum is 512 bytes.

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x01

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x01

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x01

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x01

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x01

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x01

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x01

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x01

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x01

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x01

Problem uploading to board.  See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.

Hi Brian,

sorry for the late reply. The code linked here is infact ready to use for the values of resistors given here.

You seem to have an issue with your programming setup - have you tried that before and did it work on other chips? I sometimes put other programs on my Arduino and forget to reprogram the Arduino ISP code afterwards. Just checking if you have programmed your arduino as an ISP programmer. This seems to be the issue, as otherwise it would say that the target (the attiny) didn't response. Maybe try another Arduino, if burning the ISP program doesn't work out for you.

Good luck, hope it helped

Hi Brian,

sorry for the late reply. The code linked here is infact ready to use for the values of resistors given here.

You seem to have an issue with your programming setup - have you tried that before and did it work on other chips? I sometimes put other programs on my Arduino and forget to reprogram the Arduino ISP code afterwards. Just checking if you have programmed your arduino as an ISP programmer. This seems to be the issue, as otherwise it would say that the target (the attiny) didn't response. Maybe try another Arduino, if burning the ISP program doesn't work out for you.

Good luck, hope it helped