VK group: https://vk.com/electronics_in_camera
Instagram: https://www.instagram.com/electronics_in_focus/
WinterVogel - representative of the manufacturer Controllino in Russia: http://inoplk.ru/
Description of the Controllino series in Russian: http://inoplk.ru/plc/
Controllino official website: http://controllino.biz/
Documentation: http://controllino.biz/controllino/downloads/
Controllino Support Libraries on GitHub: https://github.com/CONTROLLINO-PLC/CONTROLLINO_Library