“Life is like a box of chocolates. You never know what you’re gonna get”
— Forrest Gump
For precise wiring diagrams and electrical characteristics, you should consult official documentation or technical communities:
| Pin No. | Symbol | Direction | Description | |---------|--------------|-----------|------------------------------------------| | 1 | VIN | Power | Main supply (3.3V or 5V) | | 2 | GND | Power | Ground | | 3 | EN | Input | Chip enable (active high, >1.2V) | | 4 | SCL | I2C | Clock for configuration register | | 5 | SDA | I2C | Data for configuration register | | 6 | RST_N | Input | Active-low reset (external pull-up) | | 7 | CLK_IN | Input | External clock or crystal input | | 8 | CLK_OUT | Output | Buffered clock output | | 9–16 | LVDS0± to LVDS3± | Output | Four differential data pairs | | 17, 18 | CK_LVDS± | Output | Differential clock for LVDS | | 19 | VCOM_OUT | Output | Analog reference for panel (0V–5V) | | 20–28 | GPIO / PWM | I/O | Backlight PWM, panel strobe, etc. | bm5291 ver 1.3 schematic
If you have a physical board, consider reverse-engineering it yourself: bm5291 ver 1.3 schematic
Small-profile design for ultraportable "Slim" series laptops. bm5291 ver 1.3 schematic
“Life is like a box of chocolates. You never know what you’re gonna get”
— Forrest Gump