Display SPI
The host sends the clock and display data. The separate D/C line distinguishes command or register index from data.
HX8357D TFT LCD controller pinout
The HX8357D drives a 320 × 480 TFT. The Orient Display ANO module exposes a 4-wire SPI interface and a separate backlight-control input.
AFK320480A0-3.5INTH-ANO · 16-contact header
16 contacts Current packageAFK320480A0-3.5INTH-ANO · 16-contact header pinout
AFK320480A0-3.5INTH-ANO · 16-contact header
5 · RST
Active-low reset.
All 16 pins
| Pin | Signal | Direction | Function |
|---|---|---|---|
| 1 | GND Supply return | Supply return | Connect to host ground. |
| 2 | VDD Supply input | Supply input | Module supply. Use a regulated 3.3 V source. |
| 3 | SCL Input | Input | Host serial clock. |
| 4 | SDA Bidirectional | Bidirectional | Serial data. For initial write-only operation, drive it from the host MOSI line. |
| 5 | RST Input | Input | Active-low reset. |
| 6 | DC Input | Input | Low for command, high for parameters or data. |
| 7 | CS Input | Input | Active-low chip select. |
| 8 | BLK Input | Input | Backlight control input. A host PWM output can drive it. |
| 9 | NC None | None | Reserved contact. Leave open. |
| 10 | NC None | None | Reserved contact. Leave open. |
| 11 | NC None | None | Reserved contact. Leave open. |
| 12 | NC None | None | Reserved contact. Leave open. |
| 13 | NC None | None | Reserved contact. Leave open. |
| 14 | NC None | None | Reserved contact. Leave open. |
| 15 | NC None | None | Reserved contact. Leave open. |
| 16 | NC None | None | Reserved contact. Leave open. |
Signal assignments
Electrical limits
| Parameter | Limit | Conditions and source |
|---|---|---|
| Module supply2.5–3.6 V | 2.5–3.6 V | 3.3 V typical. Digital input high threshold is at least 0.7 × VDD. Orient Display AFK320480A0-3.5INTH-ANO V01, §§ 2, 4–5, 7 and 11. |
| Panel pixels320 × 480 | 320 × 480 | Use the module-specific initialization. Orient Display AFK320480A0-3.5INTH-ANO V01, §§ 2, 4–5, 7 and 11. |
| Backlight interfaceBLK control input | BLK control input | Drive BLK as a logic signal. The LED forward-voltage figures in the specification describe the internal array. Orient Display AFK320480A0-3.5INTH-ANO V01, §§ 2, 4–5, 7 and 11. |
Models and documents
The map follows the contact numbering in the ANO module specification. The similarly named INTM module has a different flex connector and wiring.
- AFK320480A0-3.5INTH-ANO
- Orient Display Arduino-compatible module without touch.
- Orient Display AFK320480A0-3.5INTH-ANO manufacturer documentation· Orient Display AFK320480A0-3.5INTH-ANO V01, §§ 2, 4–5, 7 and 11.
- HX8357D controller datasheet· Himax HX8357-D00/D01 V00 (April 2012), serial DBI and command chapters. Manufacturer PDF hosted by Adafruit.