https://github.com/vsmile-dev - The github org with all the things we're doing

https://vtech.fandom.com/wiki/VTech_Wiki - A less technical oriented wiki about VTech products

https://www.generalplus.com - The SPG2xx CPU manufacturer

https://hackmii.com/2010/04/sunplus-the-biggest-chip-company-youve-never-heard-of/ - The blog post that started it all