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Caraffa-git / 2004_LCD_MOD.md
Last active July 27, 2024 10:36
Modification of 2004 Anet LCD for BIGTREETECH SKR Mini E3 V2/V3 motherboards

Modification of 2004 Anet LCD for BIGTREETECH SKR Mini E3 V2/V3 motherboards

Software modifications are no longer needed because pins_BTT_SKR_MINI_E3_V3_0.h has been modified accordingly.

Adjusting the voltage

SKR Mini E3 V2/V3 have 3.3V logic but LCD screen is adapted to 5V microcontrollers so appropriate modifications are needed.

Schematic of the 2004 LCD with the modification included: LCD_schem

To drop down the voltage from 5V to 3.3V you can use linear voltage regulator or simply a zener diode and a resistor like in the photo below.

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Caraffa-git / notes.json
Created February 14, 2023 18:51
Note to frequency
}
"C0": 16.35,
"C#0": 17.32,
"D0": 18.35,
"Eb0": 19.45,
"E0": 20.6,
"F0": 21.83,
"F#0": 23.12,
"G0": 24.5,
"Ab0": 25.96,