DISPLAY GRAFICO LCD LM709SW 512 x 64 PIXEL
misure : 70 x 275 mm
| Pin 1 | + 5 Volts |
| Pin 2 | GND |
| Pin 3 | Instruction (0) or Data (1) |
| Pin 4 | /WR (Pulse for each operation) |
| Pin 5 | Data Bit 7 |
| Pin 6 | Data Bit 6 |
| Pin 7 | Data Bit 5 |
| Pin 8 | Data Bit 4 |
| Pin 9 | Data Bit 3 |
| Pin 10 | Data Bit 2 |
| Pin 11 | Data Bit 1 |
| Pin 12 | Data Bit 0 |
| Pin 13 | Area Selection Bit 0 |
| Pin 14 | /CS |
| Pin 15 | Area Selection Bit 1 |
| Pin 16 | Area Selection Bit 2 |
| Pin 17 | Not used |
| Pin 18 | - 5 Volts |
| Pin 19 | GND |
| Pin 20 | + 5 Volts |
| The voltage between pin 18 and GND (-5 to 0 volts) determines the contrast of the display. |
| The area selection determines the area (0 to 7) on which the data is written. |
| Pin 3 indicates whether the data lines (pins 5 to 12) contain an instruction (0) or represent the eight pixels of the current writing position (1). |
| Pin 14 has to be held on 0 volts in order to access the display. |
| After writing data, the current column is automatically incremented. |
Instructions:
| 62 | Hide area |
| 63 | Show area |
| 64 to 128 | Current column |
| 184 to 191 | Current row |
| 192 to 255 | Current scroll position of area (192 in most cases) |
Typical sequence of actions:
| Selection of area (pins 13, 15, 16 = area; pin 14 = 0) |
| Pin 3 = 0 (instruction) |
| Set data line to desired scroll position (192-255) |
| Set data line to desired row (183-191) |
| Set data line to desired column (64-128) |
| Pin 3 = 0 (data) |
| Set data line to desired pixel pattern |