The Banana Pi Leaf series are low-power microcontrollers designed for the Internet of Things. Maker and STEAM education.

The Leaf-S3‘s onboard ESP32-S3 chip is powered by an Xtensa® 32-bit LX7 dual-core processor with a main frequency of up to 240 MHz.

It supports 2.4 GHz Wi-Fi and Bluetooth® LE dual-mode wireless communication, the peripheral is compatible with low-power hardware design, and the power consumption is only 10uA in deep sleep mode.The main controller supports two power supply modes: USB and external 3.7V lithium battery, which can realize the function of automatic power switching under dual power supply, and supports USB charging mode. Small size, convenient interface, easy to use, and can be directly applied to low-power IoT projects.In terms of programming, Leaf-S3 motherboard supports ESP-IDF, Arduino, micropython and other methods for programming and development.All IO pins corresponding to the chip are marked on the Leaf-S3 motherboard, which lowers the threshold for use.

Key Features:
1. ESP32-S3，Xtensa® 32 bit LX7
2. External PSRAM , FLASH
3. Ultra-low power 10uA
4. 2.4G WIFI ，Bluetooth 5 ，Bluetooth mesh
5. GPIO , ADC , TOUCH , PWM , I2C , SPI , RMT , I2S , UART , LCD，CAMERA ，USB , JTAG
6. 1* 4pin I2C connector
7. 1 * USB Type-C
8. 1 * 2pin battery connector，support charging
9. 1 * Neopixel LED

Hardware sketch map:

Hardware spec:

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

Online wiki documents: https://wiki.banana-pi.org/BPI-Leaf-S3