时间：2022-08-18 10:28
人气：
作者：admin
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 |
| External PSRAM | 8MB |
| 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@3.3VLDO |
| USB charge | Support |
| Maximum charging current | 500mA |
| Neopixel LED | 1 |
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