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hardware_interface
domhardt edited this page Jan 16, 2019
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This shows how to attach the LCD and the Buttons to the Multidisplay
The LCD is attached on K9 on the MD01 Print
K7 gives the 5V Supply for the LCD Background, it is also PWM controlled.
| Pin | Function |
|---|---|
| 1 | Ground |
| 2 | 5V |
| 3 | Contrast for the LCD |
| 4 | LCD_RS |
| 5 | LCD_Enable |
| 6 | LCD_DB4 |
| 7 | LCD_DB5 |
| 8 | LCD_DB6 |
| 9 | LCD_DB7 |
for more Information please see LCD connection
The Buttons and the Shiftlight are attached on K8 on the MD01 Print,
###Pins on K8 (POTENTIAL ERROR: label on PCB v053 says K5 instead):
| Pin | Function |
|---|---|
| 1 | Ground |
| 2 | Button 1 |
| 3 | Button 2 |
| 4 | Ground |
| 5 | Shiftlight (5V) |
The Buttons should be wired so that they Pull to Ground!
You can get a maximum of 20mA for the Shiftlight, it is PWM controlled.