
Description
ESP32-S3-Touch-LCD-1.85C is a microcontroller development board with 2.4GHz Wi-Fi and Bluetooth BLE 5 support, integrates high-capacity Flash and PSRAM. Onboard 1.85inch LCD display which can smoothly run GUI programs such as LVGL. Combined with various peripheral interfaces, it is suitable for the quick development of the HMI and other ESP32-S3 applications.
Features
- Equipped with high-performance Xtensa 32-bit LX7 dual-core processor, up to 240MHz main frequency
- Supports 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE), with onboard antenna
- Built-in 512KB SRAM and 384KB ROM, with onboard 16MB Flash and 8MB PSRAM
- Onboard 1.85inch LCD display, 360×360 resolution, 262K color
- Supports capacitive touch controlled via I2C interface, with interrupt support
- Adapting UART, I2C and some IO interfaces
- Onboard audio codec chip, dual microphones, RTC sensor, TF card slot and battery recharge management module, etc.
- Supports accurate control such as flexible clock and multiple power modes to realize low power consumption in different scenarios
Onboard Resource

-
ESP32-S3R8
Dual-core processor, up to 240MHz operating frequency - 16MB Flash
-
TCA9554PWR
GPIO expander chip -
RTC chip
PCF85063 RTC chip - Amplifier chip
- PCM5101 audio decoder
- Battery recharge manager
-
MP1605GTF-Z
Power module, supports up to 3.3V 2A output - Volume adjustment knob
- TF card slot
-
IPEX1 connector
Switching to use the external antenna via resoldering an onboard resistor - Onboard ceramic antenna
- Battery power supply ON/OFF
- Speaker header
- Microphone
-
MX1.25 battery header
MX1.25 2PIN connector, for 3.7V Lithium battery, supports charging and discharging - UART header
- Power indicator
- USB Type-C port
-
Charge indicator
Lithium battery charge indicator, lights up when charging, off when fully charged (the light status is uncertain when the battery is not connected) -
I2C header
connecting with internal chip, only supports the I2C peripherals and cannot be mapped to other functions -
RTC battery header
for connecting rechargeable RTC battery -
1.27mm pin header
Reserved 28PIN header, adapting GPIO and other function pins - RESET button
- BOOT button