香蕉派 BPI-Leaf系列是为物联网设计的低功耗微控制器，支持创客教育和STEAM教育的一款开发板。
BPI-Leaf-S3采用乐鑫ESP32-S3芯片设计，采用Xtensa®32位LX7双核处理器，主频最高可达240 MHz。支持2.4 GHz Wi-Fi和蓝牙®LE双模无线通信，外设兼容低功耗硬件设计，深度睡眠模式下功耗仅为10uA。主控制器支持USB和外接3.7V锂电池两种供电方式，可实现自动电源开关功能。

关键特性:
1. 乐鑫ESP32-S3，Xtensa® 32 bit LX7
2. 拓展 PSRAM , FLASH
3. 超低功耗 10uA
4. 2.4G WIFI无线 ，蓝牙Bluetooth 5 ，Bluetooth mesh网络
5. GPIO , ADC , TOUCH , PWM , I2C , SPI , RMT , I2S , UART , LCD，CAMERA ，USB , JTAG
6. 1* 4pin I2C 连接
7. 1 * USB Type-C接口
8. 1 * 2pin 电池接口
9. 1 * Neopixel LED

硬件接口框架：

硬件规格：

BPI-Leaf-S3 Spec
SoC	ESP32-S3，Xtensa® dual-core 32-bit LX7 microprocessor
Clock Frequency	240MHz MAX
Ambient Temperature	-40℃~+85℃
Internal ROM	384 KB
Internal SRAM	320 KB
External FLASH ROM	8MB
In-packge PSRAM	2MB
WIFI	IEEE 802.11 b/g/n ，2.4Ghz，150Mbps
Bluetooth	Bluetooth 5 ，Bluetooth mesh
GPIO	BPI-Leaf-S3 has led out 36 available gpios
ADC	2 × 12-bit SAR ADCs, up to 20 channels
Touch Sensor	14
SPI	4
I2C	2
I2S	2
LCD	1 × LCD interface (8-bit ~16-bit parallel RGB, I8080 and MOTO6800)
CAMERA	1 × DVP 8-bit ~16-bit camera interface
UART	3
PWM	8 channels 14 bits
MCPWM	2
USB	1 × full-speed USB OTG，female Type-C socket
USB Serial/JTAG controller	1，CDC-ACM ，JTAG
Temperature sensor	1，range of –20 °C to 110 °C
SD/MMC	1 × SDIO host controller with 2 slots,SD 3.0,SD 3.01,SDIO 3.0,CE-ATA 1.1,MMC 4.41,eMMC 4.5,eMMC 4.51
TWAI® controller	1 ，compatible with ISO 11898-1 (CAN Specification 2.0)
General DMA controller (GDMA)	5 transmit channels and 5 receive channels
RMT	4 TX channels,4RX channels.Eight channels share a 384 x 32-bit RAM
Pulse Count Controller	4 independent pulse counters (units).Each unit consists of two independent channels
Timers	4 × 54-bit general-purpose timers.1 × 52-bit system timer.3 × watchdog timers
External crystal oscillator	40Mhz
RTC and Low­Power Management	Power Management Unit (PMU) + Ultra-­Low-­Power Coprocessor(ULP)
Deep-sleep consumption current	10uA
Operating Voltage	3.3V
Input Voltage	3.3V~5.5V
Maximum discharge current	2A@3.3V LDO
USB charge	Support
Maximum charging current	500mA
Neopixel LED	1

在线wiki开发文档: https://wiki.banana-pi.org/BPI-Leaf-S3