key: ≡ parallel, ↔ serial, ~ LVDS, _ unknown, ✘ discarded as not useful
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| LCD Description | |
|---|---|
| Model | Nokia 5110 |
| Manufacturer | Nokia |
| Recovered from | Nokia 5110 |
| Board IDs | LPH 7366, LPH 7677, LPH 7779, LPH 7690 1) |
| LCD type | positive |
| Polarizer type | transflective |
| Columns | 84 pixels |
| Rows | 48 pixels |
| Char matrix | - |
| Driver IC | Philips PCD8544 |
| Backlight | blue LED |
| Arduino driver | U8g2lib.h |
| Connector | pins |
| Num Pins | 8 |
| Pin spacing | 0.044“ |
| Module size | 44L x 40W x 10H mm |
Optimal contrast value : 63 - 70 (0x3f - 0x46)
| LCD pinout 2) | ||
|---|---|---|
| Pin | Label | Description |
| 1 | VDD | 2.7V - 3.3V |
| 2 | CLK | Clock |
| 3 | SDIN | Data in |
| 4 | D/C | Data or command |
| 5 | SCE | Chip select |
| 6 | VSS | Ground |
| 7 | VLCD | DC/DC voltage converter |
| 8 | RES | Reset |
| PCB Connector pin-out | Arduino test rig | |||
|---|---|---|---|---|
| Pin# | Label | Description | Pin | colour |
| 1 | RST | Reset | 8 | Grey |
| 2 | CS | Chip Select | 10 | Yellow |
| 3 | D/C | Data/Command | 9 | Purple |
| 4 | DIn | Serial Data Line | 11 | Blue |
| 5 | Clk | Serial Clock | 13 | Green |
| 6 | Vdd | 2.7V to 3.3V | ||
| 7 | LED | Backlight Control | ||
| 8 | GND | Power Ground | ||
It uses an SPI like protocol, but can't share the bus with other devices.
Each byte written is a column of 8 bits, columns are written out from left to right, then top to bottom. The first byte represents the top, left column of 8 bits. The second represents the one to the right of it, and so on. The least significant bit is the top of the column, and then following pixels proceed downward to the most significant bit. But note that the driver libraries probably use an entirely different byte layout for bit-mapped images.
The cheaper PCB mounts for these displays have only 4 backlight LEDs compared to 6 on some phones, and the LEDs are mounted facing up, rather than sideways, horizontally across the board, so don't spread light very evenly
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