ESP32-S3-Touch-AMOLED-2.16

This product is a high-performance, highly integrated microcontroller development board designed by Waveshare. Despite its compact size, it features an onboard 2.16inch capacitive HD AMOLED screen, a highly integrated power management chip, a 6-axis IMU (3-axis accelerometer and 3-axis gyroscope), an RTC, a low-power audio codec chip, and echo cancellation circuitry, facilitating development and integration into end products.

If you are looking for:

• Accelerating development with AI tools: Share this page link with AI tools to help them accurately understand the board hardware and generate usable code.
• Developing with Arduino IDE: See Working with Arduino
• Developing with ESP-IDF: See Working with ESP-IDF
• Downloading schematics, datasheets, and example code: See Related Resources
• Having issues: See Product FAQ or contact Technical Support

SKU	Product
33969	ESP32-S3-Touch-AMOLED-2.16
33970	ESP32-S3-Touch-AMOLED-2.16-EN

Onboard Resources

1. ESP32-S3R8 Wi-Fi and Bluetooth SoC, up to 240MHz operating frequency, with onboard 8MB PSRAM
2. 16MB NOR Flash
3. AXP2101 Highly integrated power management chip
4. Onboard Chip Antenna Supports 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE)
5. Type-C Port ESP32-S3 USB port for programming and log output
6. MX1.25 lithium battery header MX1.25 2PIN connector for connecting a 3.7V lithium battery, supports charging and discharging
7. IPEX 1 Antenna Connector Can be switched to an external antenna by changing the resistors
8. TF card slot
9. Dual-microphone Design Combined with echo cancellation circuitry for higher quality audio capture
10. GPIO 18 Button Supports custom functions
11. PWR Power Button Controls power on/off and supports custom functions
12. BOOT button Used for device startup and functional debugging
13. QMI8658 6-axis IMU includes a 3-axis gyroscope and a 3-axis accelerometer
14. Screen Interface

Peripheral Quick Reference

Peripheral	Device / Function	Interface	Main Pins	Description
Main controller	ESP32-S3R8	-	-	ESP32-S3, with embedded PSRAM
Display	2.16inch AMOLED, CO5300 driver	QSPI	GPIO4/5/6/7/38/12/39	480 x 480, QSPI quad-data line
Touch	CST9220	I2C + INT + RST	GPIO14/15/11/40	Shares I2C with RTC, IMU, PMU, audio codec
Power management	AXP2101	I2C	GPIO14/15	Manages power, battery/USB detection, etc.
IMU	QMI8658A / QMI8658C	I2C + INT	GPIO14/15/17/21	6/9-axis sensor; QMI_INT1, QMI_INT2 connected to GPIO17, GPIO21
RTC	PCF85063ATL	I2C + INT	GPIO14/15/13	RTC interrupt connected to GPIO13
TF	TF card slot	SD SPI	GPIO1/2/3/41	BSP uses CMD=GPIO1, CLK=GPIO2, D0=GPIO3; schematic also shows SDCS=GPIO41
Audio codec	ES8311	I2C + I2S	GPIO8/9/42/45/46	Speaker playback; GPIO46 is amplifier control
Microphone ADC	ES7210	I2C + I2S	GPIO9/10/42/45	Dual digital microphone array capture
I2C bus	Onboard shared I2C	I2C	GPIO14=SCL, GPIO15=SDA	Connects touch, AXP2101, QMI8658, RTC, codec, etc.
USB	USB D-/D+	USB	GPIO19/20	ESP32-S3 native USB
UART	UART0	UART	GPIO43/44	GPIO43=U0TXD, GPIO44=U0RXD
Buttons / system outputs	BOOT, CHIP_PU, GPIO18, PWRON, SYS_OUT	GPIO / PMU	GPIO0/18/16	GPIO18 to Key3; GPIO16 is SYS_OUT as marked on schematic

Pinout Definition

GPIO Pin Assignments

GPIO	Function	Connected to / Remarks
GPIO0	BOOT / download mode	ESP32-S3 boot configuration pin; use with caution
GPIO1	SD MOSI / CMD	TF
GPIO2	SD SCK / CLK	TF
GPIO3	SD MISO / D0	TF
GPIO4	LCD QSPI_SIO0	AMOLED QSPI data 0
GPIO5	LCD QSPI_SI1	AMOLED QSPI data 1
GPIO6	LCD QSPI_SI2	AMOLED QSPI data 2
GPIO7	LCD QSPI_SI3	AMOLED QSPI data 3
GPIO8	I2S_DSDIN	ES8311 audio data input, speaker playback path
GPIO9	I2S_SCLK / BCLK	Shared I2S bit clock for ES8311, ES7210
GPIO10	I2S_ASDOUT	ES7210 microphone ADC data output to ESP32-S3
GPIO11	TP_INT	Touch interrupt
GPIO12	LCD_CS	AMOLED chip select
GPIO13	RTC_INT	PCF85063ATL RTC interrupt
GPIO14	TP_SCL / ESP32_SCL / RTC_SCL	Onboard shared I2C SCL
GPIO15	TP_SDA / ESP32_SDA / RTC_SDA	Onboard shared I2C SDA
GPIO16	SYS_OUT	Power / system output related signal
GPIO17	QMI_INT1	QMI8658 interrupt 1
GPIO18	KEY3	User button, pulled up to VCC3V3 via R18 10K, shorted to GND when pressed
GPIO19	USB_N	ESP32-S3 native USB D-
GPIO20	USB_P	ESP32-S3 native USB D+
GPIO21	QMI_INT2	QMI8658 interrupt 2
GPIO38	LCD QSPI_SCL	AMOLED QSPI clock
GPIO39	LCD_RESET	AMOLED reset
GPIO40	TP_RESET	Touch reset
GPIO41	SDCS	TF chip select
GPIO42	I2S_MCLK	Audio master clock for ES8311, ES7210
GPIO43	U0TXD	UART0 TX
GPIO44	U0RXD	UART0 RX
GPIO45	I2S_LRCK	I2S left/right channel clock for ES8311, ES7210
GPIO46	PA_CTRL	Speaker amplifier enable / control

LCD and Touch Pins

Signal	GPIO	Description
LCD_CS	GPIO12	QSPI chip select
QSPI_SIO0	GPIO4	QSPI data 0
QSPI_SI1	GPIO5	QSPI data 1
QSPI_SI2	GPIO6	QSPI data 2
QSPI_SI3	GPIO7	QSPI data 3
QSPI_SCL	GPIO38	QSPI clock
LCD_RESET	GPIO39	Display reset
TP_SCL	GPIO14	Touch I2C SCL
TP_SDA	GPIO15	Touch I2C SDA
TP_INT	GPIO11	Touch interrupt
TP_RESET	GPIO40	Touch reset

Audio Pins

Signal	GPIO	Connected to	Description
I2S_MCLK	GPIO42	ES8311 / ES7210	Audio master clock
I2S_SCLK	GPIO9	ES8311 / ES7210	I2S BCLK
I2S_LRCK	GPIO45	ES8311 / ES7210	I2S WS / LRCK
I2S_DSDIN	GPIO8	ES8311	Playback data from ESP32-S3 to ES8311
I2S_ASDOUT	GPIO10	ES7210	Recording data from ES7210 to ESP32-S3
PA_CTRL	GPIO46	Amplifier	Speaker amplifier control
ESP32_SCL	GPIO14	ES8311 / ES7210 control	I2C SCL
ESP32_SDA	GPIO15	ES8311 / ES7210 control	I2C SDA

TF Card Pins

Signal	GPIO	Description
SD_MOSI / SD_CMD	GPIO1	TF command line
SD_SCK / SD_CLK	GPIO2	TF clock
SD_MISO / SD_D0	GPIO3	TF data 0
SDCS	GPIO41	TF chip select

Button Pins

Button / Signal	GPIO / Signal	Description
Key3	GPIO18	User button, default pulled up, shorted to GND when pressed
Key2	GPIO0 / CHIP_PU	Button area connects both GPIO0 and CHIP_PU; related to startup/reset, use with caution
Key1	PWRON	PMU power button input
SYS_OUT	GPIO16	System output / power-related control signal

I2C Device Summary

Device	Model	I2C Pins	Additional interrupt / control
Touch	CST9220	GPIO14 / GPIO15	TP_INT=GPIO11, TP_RESET=GPIO40
Power management	AXP2101	GPIO14 / GPIO15	Power-related interrupts via PMU
IMU	QMI8658A / QMI8658C	GPIO14 / GPIO15	QMI_INT1=GPIO17, QMI_INT2=GPIO21
RTC	PCF85063ATL	GPIO14 / GPIO15	RTC_INT=GPIO13
Audio codec	ES8311 / ES7210	GPIO14 / GPIO15	I2S see "Audio Pins"

Precautions

• GPIO14 and GPIO15 are the onboard shared I2C bus, already connected to multiple devices. When adding external I2C devices, be aware of address conflicts and bus levels.
• GPIO19 and GPIO20 are the ESP32-S3 native USB pins. Do not occupy them as general-purpose GPIO.
• GPIO43 and GPIO44 are UART0, typically used for downloading and debug logs.
• GPIO0 is related to boot mode; it is not recommended to permanently use it as a normal peripheral.
• GPIO18 is connected to the onboard Key3. When used as a regular GPIO, consider the pull-up and the level effect when the button is pressed (shorted to GND).

Dimensions

Development Methods

The ESP32-S3-Touch-AMOLED-2.16 supports both the Arduino IDE and ESP-IDF development frameworks, giving developers flexible options. You can choose the development tool that best suits your project needs and personal preferences.

Arduino generally offers a gentler learning curve and may be more approachable for beginners and hobbyists. ESP-IDF provides advanced tooling and finer control over system behavior, making it better suited to complex projects and applications with demanding performance requirements.

• Arduino IDE is a convenient, flexible, and easy-to-use open-source electronics prototyping platform. It requires minimal foundational knowledge, allowing for rapid development after a short learning period. Arduino has a huge global user community, providing a vast amount of open-source code, project examples, and tutorials, as well as a rich library ecosystem that encapsulates complex functions, enabling developers to implement various features rapidly. You can refer to the Working with Arduino to complete the initial setup, and the tutorial also provides related example programs for reference.

• ESP-IDF, short for Espressif IoT Development Framework, is a professional development framework launched by Espressif Systems for its ESP series of chips. It is based on C language development and includes compilers, debuggers, flashing tools, etc. It supports development via command line or integrated development environments (such as Visual Studio Code with the Espressif IDF plugin), which provides features like code navigation, project management, and debugging. We recommend using VS Code for development. For the specific configuration process, please refer to the Working with ESP-IDF. The tutorial also provides relevant example programs for reference.