Round AMOLED Display 1.75" 466×466 Touch Panel ESP32-S3 WiFi and BT RTC IMU Audio
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ESP32-S3 Development Board with Round, 1.75-inch Touch AMOLED Display
The ESP32-S3-Touch-AMOLED-1.75B is an integrated board with a built-in 1.75-inch capacitive touch AMOLED display, a power management IC, a 6-axis sensor (accelerometer and gyroscope), an RTC chip, and a low-power audio codec with echo cancellation.
Key Features:
- Equipped with a dual-core ESP32-S3R8 Xtensa® 32-bit LX7 processor, clocked up to 240 MHz
- Supports 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE), with a built-in antenna
- Built-in 512KB SRAM and 384KB ROM, with 8MB PSRAM on board and external 16MB Flash memory
- USB Type-C connector, ensuring better compatibility and ease of use
- Capacitive, touch-enabled 1.75-inch AMOLED display with 466 × 466 resolution, 16.7M colors
- Display driver CO5300 and touch chip CST9217, communicating via QSPI and I2C
- Equipped with a dual digital microphone with echo cancellation, ideal for speech recognition
- 6-axis IMU QMI8658 sensor (3-axis accelerometer and 3-axis gyroscope) for gesture detection
- RTC PCF85063 chip with battery backup via the AXP2101 IC
- Programmable PWR and BOOT buttons
- MX1.25 connector for charging/discharging a 3.7V lithium battery
- 8PIN 2.54mm connector breaking out 3 × GPIO and 1 × UART, plus pads for I2C and 3 × IO
- TF card slot for memory expansion
- AXP2101 IC for efficient power management, supporting battery charging and multiple output voltages
AMOLED Screen Technology
Next-generation display technology that, compared to traditional LCD screens, offers precise light control, resulting in more detailed colors, vivid images, and deeper blacks.
Wide 178° Viewing Angle
Excellent display performance, 16.7 million colors, and wide viewing angles.
Built-in Audio Codec and Dual Microphone
Supports high-quality audio processing, providing clear sound input and output. Ideal for speech recognition applications.
Board Description
- ESP32-S3R8
SoC with Wi-Fi and Bluetooth, operating frequency up to 240 MHz, with built-in 8MB PSRAM - Built-in antenna
Supports 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE) - IPEX1 connector
Can be switched to an external antenna by resoldering a resistor - PWM button
For power on/off, supports custom functions - BOOT button
For device startup and function debugging - MX1.25 2P speaker connector
- TCA9554
GPIO expander - PCF85063
RTC chip - QMI8658
6-axis IMU (3-axis gyroscope and 3-axis accelerometer)
- AXP2101
Highly integrated power management IC - 8PIN 2.54mm connector
For debugging and connecting peripherals - Dual microphones
With built-in echo cancellation, allowing higher quality audio capture - IPEX 1 GPS connector
For connecting a GPS antenna (only in GPS version, with built-in LC76G module) - Type-C port
ESP32-S3 USB interface, for programming and log printing - ES7210
Chip with echo cancellation algorithm, reducing echo and improving sound capture accuracy - MX1.25 lithium battery connector
MX1.25 2P connector, for 3.7V lithium battery, supports charging and discharging
AMOLED Display Parameters:
| Display Panel | AMOLED | Diagonal | 1.75 inch |
|---|---|---|---|
| Resolution | 466 × 466 pixels | Colors | 16.7M |
| Brightness | 700 cd/㎡ | Contrast | 100000:1 |
| Interface | QSPI | Driver | CO5300 |
| Touch | Capacitive | Touch Driver | CST9217 |
Dimensions
Package Contents
- ESP32-S3-Touch-AMOLED-1.75 with case ×1
- Speaker 8Ω 2W ×1
Wiki: https://www.waveshare.com/wiki/ESP32-S3-Touch-AMOLED-1.75
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