First post, by Tronix
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Hello,
Looking for keyboard pinout and protocol description, presumably from Videoton terminal:
PCB marked as "VDN-53". Three 74LS155 IC, five 74LS38
Hello,
Looking for keyboard pinout and protocol description, presumably from Videoton terminal:
PCB marked as "VDN-53". Three 74LS155 IC, five 74LS38
Sketched a piece of the circuit connected to the cable... Any ideas on how to control the keyboard?
Finaly i made it work. I made simple Parallel keyboard to USB converter based on STM32. Keyboard has very unusual English layout. To type the 'DIR' command I spend about 10 seconds 😊
Short video: https://youtu.be/N8TFsSLPhBE
Dont understand how this works...but good job! 😎