ESP32-C6 Development Board with 1.69" IPS Touch LCD 240x280px Wi-Fi 6 / BLE 5 - Waveshare 31538

Description

ESP32-C6 Touch LCD 1.69" is a compact development board designed for IoT projects, portable devices and systems requiring a graphical user interface. The module is based on the ESP32-C6 microcontroller featuring a 32-bit RISC-V processor clocked up to 160 MHz and 16 MB of Flash memory, providing high performance while maintaining low power consumption.

The board includes a 1.69" IPS color display with a resolution of 240 × 280 px supporting 262K colors. The display uses the ST7789V2 driver communicating via the SPI interface, while the capacitive touch panel is handled by the CST816T controller using the I2C interface. This configuration allows the creation of interactive user interfaces in embedded devices.

The module supports wireless communication through Wi-Fi 6, Bluetooth 5 and IEEE 802.15.4 (Zigbee / Thread) and is equipped with a QMI8658 6-axis IMU sensor, PCF85063 RTC chip, ES8311 audio codec with microphone and amplifier, a USB-C connector for programming, and a 3.7 V Li-Po battery connector. This makes the board suitable for smart IoT devices, voice-interaction systems and AIoT applications.

1. ESP32-C6 – microcontroller with a 32-bit RISC-V processor supporting Wi-Fi 6, Bluetooth 5 and IEEE 802.15.4 (Zigbee / Thread).
2. W25Q128JVSIQ – 16 MB NOR Flash memory used for storing program code and data.
3. PCF85063 – RTC (Real Time Clock) chip used for timekeeping functions.
4. QMI8658 – 6-axis IMU sensor including a 3-axis accelerometer and a 3-axis gyroscope for motion and orientation detection.
5. ETA6098 – high-efficiency lithium battery charging IC responsible for managing battery charging.
6. MX1.25 2P Lithium battery header – MX1.25 connector for a 3.7 V Li-Po battery supporting charging and discharging.
7. Type-C port – USB-C interface of the ESP32-C6 used for programming and serial communication (logs/debug).
8. MX1.25 speaker header – connector for connecting an external speaker.
9. Onboard antenna – integrated antenna for Wi-Fi and Bluetooth wireless communication.
10. PWR button – power button for controlling battery power supply (single-press, double-press, multi-press or long-press operations).
11. BOOT button – programming mode button used when uploading firmware to the microcontroller.
12. RST button – reset button used to restart the device.
13. Microphone – onboard microphone used for audio capture and voice interaction.
14. NS4150B – 3 W mono Class-D audio power amplifier used to drive a speaker.
15. ES8311 (back side) – low-power mono audio codec responsible for audio signal processing.

Features

• Microcontroller
  • Microcontroller: ESP32-C6
  • Processor: 32-bit RISC-V up to 160 MHz + low-power RISC-V 20 MHz
  • Flash memory: 16 MB NOR Flash
  • ROM: 320 KB
  • SRAM: 512 KB HP SRAM + 16 KB LP SRAM
• Display
  • Display type: IPS LCD with touch panel
  • Display size: 1.69"
  • Resolution: 240 × 280 px
  • Color depth: 262K colors
  • Display driver: ST7789V2
  • Display interface: SPI
• Touch panel
  • Type: capacitive
  • Touch controller: CST816T
  • Touch interface: I2C
• Image parameters
  • Brightness: 435 cd/m²
  • Contrast ratio: 315:1
• Wireless connectivity
  • Wi-Fi 6
  • Bluetooth 5 LE / BLE
  • IEEE 802.15.4 (Zigbee 3.0 / Thread)
• Sensors
  • QMI8658 – 6-axis IMU (accelerometer + gyroscope)
• Additional chips
  • PCF85063 RTC
  • ES8311 audio codec
  • NS4150B audio amplifier
• Power supply
  • 3.7 V Li-Po battery connector (MX1.25)
  • USB-C port
• Interfaces
  • SPI
  • I2C
  • UART
  • USB
  • GPIO

Kit includes

• ESP32-C6-Touch-LCD-1.69 module
• 6 Ω / 1 W speaker