Hackaday9 个月
dot matrix
These Plessey dot-matrix displays are a perfect example ... Each 8-pin DIP has two 5×7-matrix, high-visibility LED displays. They bear date codes from the late 80s under the part number, GPD340 ...
Hackaday9 个月
Old Dot-Matrix Displays Give Up Their Serial Secrets
These Plessey dot-matrix displays are a perfect example ... Each 8-pin DIP has two 5×7-matrix, high-visibility LED displays. They bear date codes from the late 80s under the part number, GPD340 ...