Vermes
Advanced Member level 4
This design is a solution for everyone who want to have an original business card, different than others. This device uses a extremely thin COG type alphanumerical display. LCD was placed in the laminate. You only have to cut a proper hole. Due to the fact that the LCD operates at 5V, instead of one 3V battery, you have to find way to place three 1,5V ones. Mounting plates of the batteries can be removed from handles.
If you want to improve this design, you can add an energy saving mode, standby mode, etc.
Program was written in Bascom. PCB was designed in Eagle, made in thermal transfer method.
Pictures:
Cutting holes and fitting the display:
Fitting and assembly. When you do not have batteries, it can be done on cables, such as in this picture:
Fitting – the size of a credit card/ typical business cards
The business card is a few mm thick:
Final effect:
Link to original thread - Elektroniczna wizytówka LCD
