Waveshare ESP32-C5-LCD-2.73
2.73" 320x320 IPS LCD (ILI9488, SPI), TF card, QMI8658, PCF85063.
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Building for it
A project is made for one toolchain, picked when you start it. For this board you can use two of the four:
| Toolchain | |
|---|---|
| Arduino (C++) | Every board, every widget and every peripheral here. The most control, and the most to set up. Start a project |
| MicroPython | The MicroPython export has not been built for this chip yet. It is written for the ESP32, S2, S3, C3 and C6. |
| ESPHome | This board's display's RST runs through its I/O expander. Waveshare's IO extension is a small microcontroller running their own firmware, and ESPHome has no component that speaks its protocol. Use the Arduino export for this board. |
| ESP-IDF (C) | Espressif's own framework: esp_lcd, the component registry and idf.py, with nothing of Arduino in it. Start a project |
At a glance
| Part | Detail |
|---|---|
| Maker | Waveshare |
| MCU | ESP32-C5 RISC-V @ 240 MHz, dual-band Wi-Fi 6, 384 KB SRAM, quad PSRAM on some modules |
| Display | Ilitek ILI9488, 320 x 320 px, SPI (4-wire serial), 18-bit colour |
| Touch | None |
| Backlight | IOExtension pin 16, dimmable (PWM) |
| Memory | 32 MB flash, 8 MB quad PSRAM (N32R8) |
| Graphics library | GFX Library for Arduino |
Display pins
ILI9488 on SPI (4-wire serial): SPI clock 60 MHz, host SPI2_HOST, BGR colour order, inversion on.
| Signal | Pin |
|---|---|
| SCK / CLK | GPIO 6 |
| MOSI / SDA | GPIO 7 |
| MISO / SDO | GPIO 5 |
| CS | GPIO 8 |
| DC / RS | GPIO 4 |
| RESET | IOExtension pin 0 |
| Backlight | IOExtension pin 16 |
Also on the board
- I2C (GPIO 27 / 26) - SDA GPIO 27, SCL GPIO 26
- IOExtension I/O expander at 0x24, driving the lines marked above
- IMU - QMI8658, at 0x6B, on I2C (GPIO 27 / 26)
- RTC - PCF85063, at 0x51, on I2C (GPIO 27 / 26)
- PREVButton - input on GPIO 2
- NEXTButton - input on GPIO 3
- BOOTENTERButton - input on GPIO 28
The preset adds these to the Hardware tab with the board, so a sensor can go straight onto the connector.
Check your revision. Pins from Waveshare's demo code and schematic (https://github.com/waveshareteam/ESP32-C5-LCD-2.73). Docs call the expander CH32V003; the schematic part is CH32V006K8U7 - same Waveshare register protocol at 0x24 either way.
Designing for it in LCD Wizard
- Choose Waveshare ESP32-C5-LCD-2.73 on the Hardware tab (or use the button above) and every pin on this page is filled in. The export writes the sketch,
lcd_pins.h, the GFX Library for Arduino configuration,lv_conf.handplatformio.ini- a project that builds for this board as it comes. - The backlight is dimmable: give a slider or a button a Set backlight action.
- With PSRAM the LVGL memory pool can live there, leaving internal RAM for everything else.
- Screens are designed for 320 x 320 px in either orientation, with LVGL 9 or LVGL 8.
The parts
ILI9488. Over SPI this panel only accepts 18-bit (3-byte) pixels, which costs bandwidth.
ESP32-C5. SPI displays. Quad PSRAM on the -R4/-R8 modules takes GPIO15.
GFX Library for Arduino. Moshi Liu's library. Best QSPI/AMOLED and RGB coverage. Configured in code.
The pinout on one page
Every pin above, laid out to print and keep beside the bench. Generated from this preset, so it says exactly what the designer writes into lcd_pins.h.
Download the pinout (PNG)Open it as SVG
The same pins as data - board.json and pins.csv - are in the open pinout dataset on GitHub, free to reuse under CC BY 4.0.
From the people who made it
The board’s own documentation. Pinouts on vendor pages do sometimes disagree with the hardware in front of you - where this page and that one differ, trust your board and tell us.
- The vendor’s product page
- Vendor documentation
- Schematic (PDF)
- Waveshare demo code (pins read from here)
Designs for this board
Nobody has published a design for this board yet. Publish yours from the designer and it appears here and in the gallery.
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- Quick start - from an empty screen to firmware on the board
- Boards and displays - presets, controllers, pins and touch in the designer
- Flashing and configuration - PlatformIO, the Arduino IDE and first-boot checks
- Troubleshooting - a white screen, mirrored image or touch that misses