in my “fundus” i have about 100 or more LCD. TFTs, OLED, VFDs und WTH else 8)
Some of them are more then 20 years old, but still work 'cause most are brand new sealed.
In the exploration of the ARDUINOS i tried several of them to connect to a UNO or MEGA, and in this case i “found” some double-colored lcd.
There is absolutly nothing printed on it - so has anyone an idea ?