NTSC or PAL? One C16 to rule them all.

Switching between NTSC/PAL using only the reset button on a C16? Yes, I came up with a mod to do just that, no holes required, no janky dual crystal setup. (Would work on a Plus4 as well.)

Previous C16 videos:

C16 6510 CPU Replacement: https://www.youtube.com/watch?v=xRNb7NjgWTo

C16 KERNAL mod for 6510 CPU: https://www.youtube.com/watch?v=_CCj-uXecCM
Links:

Arduino Code:
https://pastebin.com/nZq1KSA8

Si5351 Cloth Generator/Synthesizer:
https://www.aliexpress.com/item/Si5351-Si5351A-Clock-Breakout-Board-Precision-25MHz-Crystal-Controller-Signal/32909874496.html

Adafruit Library for Si5351:
https://learn.adafruit.com/adafruit-si5351-clock-generator-breakout/overview

Optiboot for Arduino:
https://github.com/Optiboot/optiboot

Arduino Pro Mini:
https://www.ebay.com/itm/Pro-Mini-Module-Atmega168-5V-16mhz-For-Arduino-Compatible-With-Nano-1pc/111999993156

https://www.ebay.com/itm/NEW-Pro-Mini-ATMEGA328P-5V-16M-3-3V-8M-Optional-Arduino-PRO-mini-Compatible/192260205251

Angled Pin Headers:
https://www.ebay.com/itm/17Pcs-1-x-40-Pin-2-54mm-Pitch-Single-Right-Angle-PCB-Pin-Headers-ASS/263458041110

28 pin round hole sockets: (for EPROM adapter)
https://www.ebay.com/itm/10pcs-28Pin-wide-DIP-Round-IC-Sockets-Adaptor-Solder-Type-gold-plated-machined/291623726753

Dupont Jumper Cables: (various lengths)
https://www.ebay.com/itm/10-20-30cm-40-Pcs-Breadboard-Dupont-Jumper-Wire-Cable-M-M-F-F-M-F-for-Arduino/192857040039

Heat Sinks:
https://www.aliexpress.com/item/50Pcs-Lot-14x14x6-mm-Aluminum-Radiator-Heat-Sink-Extrusion-Cooler-With-Thermal-Tape-For-LM2596-LM2577/32537183709.html

Plato (Clone) Side Cutters: (order five)
https://www.ebay.com/itm/1-2-5-10PCS-Micro-Scissor-125mm-PLATO-170-Electronics-Cutter-Side-Cutting-Pliers/163458746184

EPROM Programmer:
https://www.ebay.com/itm/USB-TL866II-Plus-Programmer-EPROM-EEPROM-Flash-MiniPro-BIOS-AVR-AL-PIC-SP-MCU/372501468291

RetroTink 2X Video Converter:
http://www.retrotink.com/

Thumbnail C16 Pic: (CC BY-SA 3.0)
Wikipedia User Cbmeeks
https://commons.wikimedia.org/wiki/File:Commodore_16_002a.png

Видео NTSC or PAL? One C16 to rule them all. канала Adrian's Digital Basement