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External display with rotary encoder, back and home button and LEDs
by 7eggert
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#External LCD2004 display with rotary encoder, back and home button and LEDs
Made for Anet A8 and marlin firmware.
###Display
By using an I²C display, the number of required pins could be reduced to 2 pins. It's a default LCD2004 with a PCF8575 port expander as sold for Arduino.
###Keys
The Anet LCD2004 uses a resistor network to encode the buttons to one pn. I'm emulating that.
The rotary emulates the center button. Up and down are omitted on this pin, since the encoder replaces t
Made for Anet A8 and marlin firmware.
###Display
By using an I²C display, the number of required pins could be reduced to 2 pins. It's a default LCD2004 with a PCF8575 port expander as sold for Arduino.
###Keys
The Anet LCD2004 uses a resistor network to encode the buttons to one pn. I'm emulating that.
The rotary emulates the center button. Up and down are omitted on this pin, since the encoder replaces t
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