BPI-Centi-S3
Contents
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
- 2 * M3 Screw Holes
hardware
Schematic Diagram of Hardware Interface
BPI-Centi-S3 1.9-inch LCD display:
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 |
| Encoder | 1 x Incremental Rotary Encoder, support pressing function |
| Buzzer | 1 |
| Color LED | 1 x WS2812 2020 LED |
| Button | RST Button, BOOT Button |
| Screw Holes | 2 x M3 Screw Holes |
| 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
