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pinouts
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@thinkyhead
thinkyhead committed Feb 1, 2023
1 parent 0f168d0 commit 8dafa67
Showing 1 changed file with 11 additions and 1 deletion.
12 changes: 11 additions & 1 deletion Marlin/src/pins/stm32f1/pins_BTT_SKR_MINI_E3_common.h
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/**
* LCD for Melzi v4 needs a custom cable with reversed GND/5V pins; plugging in a standard cable may damage the board or LCD!
* 1. Swap the LCD's +5V (Pin2) and GND (Pin1) wires. (This is the critical part!)
* 2. Swap pin 4 on the Melzi LCD to pin 7 on the SKR Mini E3 EXP1 connector (pin 4 on the SKR is a reset and cannot be used)
* 2. Swap pin 4 on the Melzi LCD to pin 7 on the SKR Mini E3 EXP1 connector (pin 4 on the SKR is a RESET and cannot be used)
*
* LCD for Melzi V4 SKR Mini E3 V2.0
* ------ ------
* LCD RS | 1 2 | EN1 LCD RS | 1 2 | EN1
* LCD EN | 3 4 | EN2 LCD EN | 3 4 | OPEN (RESET)
* LCD D4 | 5 6 | ENC LCD D4 | 5 6 | ENC
* e-Stop | 7 8 | BEEP EN2 | 7 8 | BEEP
* 5V | 9 10 | GND GND | 9 10 | 5V
* ------ ------
* EXP1 EXP1
*/
#define BEEPER_PIN EXP1_08_PIN

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