Where you find the ILI9342C
The ILI9342C is common in 2.0″–2.4″ landscape QVGA modules, including several in our catalog, and in widely used ESP32 development devices. Because the panel is landscape-native, a 320-pixel-wide UI needs no rotation in software.
Interfaces
Interface | Typical use |
|---|---|
3/4-wire SPI | MCU projects, few pins |
8080 parallel (8/16-bit) | Faster full-screen updates on MCUs with an LCD/FSMC peripheral |
RGB (parallel or serial) | Hosts with an LCD controller; streaming updates |
Bring-up notes
- Confirm the interface mode set by the IM pins on your module before choosing a driver.
- Use an ILI9342-specific init sequence; an ILI9341 sequence may show a mirrored or rotated image.
- If colours look inverted on IPS variants, toggle display inversion (0x21/0x20) and check the BGR bit in MADCTL.
Compare with ILI9341 and see the TFT white screen guide.
ILI9342C library support
| Library | Driver / class | Notes |
|---|---|---|
| LovyanGFX (Arduino / ESP-IDF) | lgfx::Panel_ILI9342 | |
| Note | Used on M5Stack devices; M5GFX handles it automatically. |
LGFX_ILI9342C.hpp. Pins are placeholders; we email updates when we add tested configurations.
Dev boards using ILI9342C
Display modules using ILI9342C
2.6" 320×240 TFT LCD, RGB (PJ2501G01-25H51P300)
- Size
- 2.6"
- Resolution
- 320×240
- Brightness
- 300 nits
2.3" 320×240 TFT LCD, MCU (PJ2301H10-23H37P450)
- Size
- 2.3"
- Resolution
- 320×240
- Brightness
- 450 nits
2.3" 320×240 TFT LCD, RGB (PJ2301T03-23H40P400)
- Size
- 2.3"
- Resolution
- 320×240
- Brightness
- 400 nits
2.3" 320×240 IPS TFT LCD, SPI / RGB (PJ2302T01-28H40P)
- Size
- 2.3"
- Resolution
- 320×240
- Driver IC
- ILI9342C
2.3" 320×240 TFT LCD, RGB (PJ2301H09-23H40P350)
- Size
- 2.3"
- Resolution
- 320×240
- Brightness
- 350 nits
2" 320×240 TFT LCD, RGB (PJ2002G11-30H40P200)
- Size
- 2"
- Resolution
- 320×240
- Brightness
- 200 nits
ILI9342C troubleshooting & FAQ
What is the difference between ILI9341 and ILI9342C?
Both drive QVGA panels with on-chip memory, but ILI9341 is portrait-native (240×320) while ILI9342C is landscape-native (320×240). Init sequences and default memory orientation differ, so use the driver that matches the controller on your module.
Can I use an ILI9341 library with an ILI9342C display?
Often yes with rotation and init changes, because the command sets are closely related. Many libraries, including LovyanGFX and ESP-IDF esp_lcd, support ILI9342 directly; using the matching driver avoids mirrored or offset images.
Which interface should I use with ILI9342C?
SPI is simplest for MCUs. Use 8080 parallel for faster full-screen refresh, or RGB when the host has an LCD controller and you want continuous video-like updates.