| LCD Description | |
|---|---|
| Model | VLGEM1021-10 |
| Manufacturer | Varitronix |
| Recovered from | Siemens optiPoint 500 advance phone |
| Board IDs | VLG1021#2-01, C102/VLGEM1021-10 |
| Compatible with | JM2402A, HB24209, CPS2013-1, C142-FSTN/VLGEM1122, VLGEM1021-03, VLGEM1021-09 |
| LCD type | positive |
| Polarizer type | reflective |
| Columns | 24 |
| Rows | 2 |
| Char matrix | 5×8 |
| Driver IC | KS0073 (eqv) |
| Backlight | orange LED |
| Arduino driver | KS0073 driver library |
| Connector | PCB flex cable |
| Num Pins | 10 |
| Pin spacing | 1mm |
| Module size | 97.5mm x 25 mm |
| Connector pin-out | Arduino test rig | |||
|---|---|---|---|---|
| Pin# | Label | Description | Pin | colour |
| 1 | LED A | Backlight+ | ||
| 2 | LED A | Backlight+ | ||
| 3 | SID | Serial Data Input | ||
| 4 | LED K | Backlight- | ||
| 5 | SClk | Serial clock | ||
| 6 | Vss | Ground | ||
| 7 | SOD | Serial Data Output | ||
| 8 | Vdd | Logic +5V | ||
| 9 | CS | Chip select | ||
| 10 | VCI | Voltage converter input for LCD1) | ||
Notes: I can't read the backlight voltage specification on the compatible LCD datasheet, it looks like 3.0V, 180mA. In testing I get 140mA at 3.0v, or 180mA at 3.3V which gives a reasonable amount of light.
Additional info
Examples :
1)
Normal “contrast” type control, about +2V