BPI-Centi-S3

Introduction

BPI-Centi-S3 is a small-sized ESP32-S3 development board with a 1.9-inch LCD onboard, suitable for the development of comprehensive Internet of Things application projects such as color display, interactive control, wireless communication, and sensor data acquisition.

Using the Espressif ESP32-S3 chip, it supports 2.4 GHz Wi-Fi and Bluetooth® Low Energy (Bluetooth® LE) dual-mode wireless communication.

In a compact space, it still provides an incremental rotary encoder, a buzzer, a WS2812 color LED, and all other available pins to meet diverse needs.

Support USB and external 3.7V lithium battery power supply, can realize automatic switching power supply function under dual power supply, and support USB charging mode, equipped with battery voltage detection circuit, convenient for power management.

Key Features

• ESP32-S3, Xtensa® 32 bit LX7
• 2M PSRAM, 8M FLASH
• 2.4G WIFI, Bluetooth 5, Bluetooth mesh
• GPIO, PWM, I2C, SPI, RMT, I2S, UART, USB, JTAG
• 1 * ST7789 LCD screen, 1.9-inch, 170*320 resolution, 8bit 8080 parallel port
• 1 * Rotary Encoder
• 1 * Buzzer
• 1 * full color LED
• 1 * JST SH 1mm 4-Pin I2C connector
• 2 * JST SH 1mm 6-Pin
• 1 * USB Type-C
• 1 * MX 1.25mm 2-Pin battery connector, support charging

hardware

Schematic Diagram of Hardware Interface

Preparing...

Hardware Specifications

BPI-Centi-S3 Spec
SoC	ESP32-S3, Xtensa® 32-bit LX7 dual-core processor
Clock Frequency	240MHz MAX
Internal ROM	384 KB
Internal SRAM	320 KB
Onboard FLASH ROM	8MB
On-chip PSRAM	2MB
WIFI	IEEE 802.11 b/g/n, 2.4Ghz frequency band, 150Mbps
bluetooth	Bluetooth 5, Bluetooth mesh
External crystal oscillator	40Mhz
RTC and Low­Power Management	Power Management Unit (PMU) + Ultra-­Low-­Power Coprocessor(ULP)
GPIO	9 available GPIOs have been exported to the JST SH socket
Support Peripherals	I2C, SPI, PWM, UART, RMT, I2S, SD
JST SH 1mm socket	1 x 4Pin, 2 x 6Pin
USB	1 x Full Speed USB 2.0 OTG, Type-C Female
USB Serial/JTAG Controller	1, USB full speed standard, CDC-ACM, JTAG
Screen size	1.9 inches
Screen resolution	170 x 320 RGB
Screen control chip	ST7789V3
Screen interface	8bit 8080 parallel port
Incremental Rotary Encoder	1
Buzzer	1
Color LED	1 x WS2812 2020
Machine working temperature	-20℃ ~ +60℃
Working voltage	3.3V
USB input voltage	3.3V~5.5V
Maximum discharge current	[email protected] DC/DC
Battery connector	MX 1.25mm 2-Pin
USB charging	Support
Maximum charging current	500mA

Hardware Dimensions

BPI-Centi-S3 Dimensions
Mounting hole spacing
Mounting hole size
Motherboard size	26 x 63(mm)/1.02 x 2.48(inches)