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Tags: Banana Pi Leaf S3 - BPI Leaf S3 Single Board Computer, bpi-leaf-s3, SBC Boards
Banana Pi Leaf S3 - BPI Leaf S3 Single Board Computer
The Banana Pi BPI-Leaf-S3 is a series of low-powered microcontrollers designed for IoT development and a Maker DIY board. It supports 2.4 GHz Wi-Fi and Bluetooth® LE dual-mode wireless communication, the peripheral is compatible with a low-power hardware design, and the power consumption is only 10uA in deep sleep mode.
The main controller supports two power supply inputs: USB and an external 3.7V lithium battery, both can be interchangeable freely. The battery could also be charged while the USB is plugged in. Compact size, various interfaces, easy to use, and can be directly applied to low-power IoT projects.
In terms of programming, the Leaf-S3 supports ESP-IDF, Arduino, micropython, and other methods.
The IO pins on BPI-Leaf-S3 are identical to the Espressif ESP32-S3-DevKitC-1, developers can add peripherals that are supported by DevKitC-1 onto the BPI-Leaf-S3, and can also combine it onto a breadboard.
Key Features
- ESP32-S3，Xtensa® 32 bit LX7
- External PSRAM, FLASH
- Ultra-low power 10uA
- 2.4G WIFI，Bluetooth 5，Bluetooth mesh
- GPIO, ADC , TOUCH, PWM , I2C, SPI , RMT, I2S , UART, LCD， CAMERA ，USB, JTAG
- 1* JST SH 1mm 4-Pin Socket, support I2C
- 1 * USB Type-C
- 1 * MX 1.25mm 2-Pin Socket， support charging
- 1 * Neopixel LED
ESP32-S3-DevKitC-1, BPI-Leaf-S3 Comparison
| Dev Board | BPI-Leaf-S3 | ESP32-S3-DevKitC-1 |
|---|---|---|
| GPIO Pins | 36 | 36 |
| 3.3v Pins | 3 | 3 |
| 5v Pins | 1 | 1 |
| GND Pins | 4 | 4 |
| ARGB LEDs | 1 on GPIO48 | 1 on GPIO48 |
| Chip Internal USB | USB-C Connector x 1 | MicroUSB Connector x 1 |
| UART TTL to USB | None | CP2102-MicroUSB Connector x 1 |
| External Battery Socket | 3.7v Li-ion Battery dock | None |
| Battery Charging | 500mA Charging Current | None |
| JST SH 1mm 4-Pin Socket | 1 | None |
The amount, numeric order, and spacing of IO pins on BPI-Leaf-S3 are identical to the Espressif ESP32-S3-DevKitC-1.
The BPI-Leaf-S3 dev board no longer equips traditional UART TTL to USB converter chip and its dedicated USB port. This is due to the ESP32-S3 chip's internal USB function being improved, supporting the CDC-ACM virtual serial port and JTAG interface, which is capable of software development and firmware management feature, that makes the external converter chip redundant.
Compared to the ESP32-S3-DevKitC-1 dev board, the BPI-Leaf-S3 adds an external battery socket and a charging circuit, capable of charging the battery via USB. When a 3.7v battery is connected, unplugging the USB will not cause the program to break, making it fit for multiple applications.
BPI-Leaf-S3 dev board is equipped with an I²C 4-pin dock, this stabilizes connection to other I²C peripherals. This dock is not only restricted to I²C connection, any module that requires a 3.3v pin, a GND pin, and one or two data pins can also be connected to the Leaf-S3 via this 4-pin dock.
Hardware Specs
| BPI-Leaf-S3 Spec | |
|---|---|
| SoC | ESP32-S3, Xtensa® dual-core 32-bit LX7 microprocessor |
| Clock Frequency | 240MHz MAX |
| Operating Temperature | -40℃~+85℃ |
| Internal ROM | 384 KB |
| Internal SRAM | 320 KB |
| Onboard FLASH ROM | 4MB |
| On-chip 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, ranging from -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 | [email protected] DC/DC |
| USB charge | Support |
| Maximum charging current | 500mA |
| Neopixel LED | 1 |
The Banana Pi BPI-Leaf-S3 is a series of low-powered microcontrollers designed for IoT development and a Maker DIY board. It supports 2.4 GHz Wi-Fi and Bluetooth® LE dual-mode wireless communication, the peripheral is compatible with a low-power hardware design, and the power consumption is only 10uA in deep sleep mode.
The main controller supports two power supply inputs: USB and an external 3.7V lithium battery, both can be interchangeable freely. The battery could also be charged while the USB is plugged in. Compact size, various interfaces, easy to use, and can be directly applied to low-power IoT projects.
In terms of programming, the Leaf-S3 supports ESP-IDF, Arduino, micropython, and other methods.
The IO pins on BPI-Leaf-S3 are identical to the Espressif ESP32-S3-DevKitC-1, developers can add peripherals that are supported by DevKitC-1 onto the BPI-Leaf-S3, and can also combine it onto a breadboard.
Key Features
- ESP32-S3，Xtensa® 32 bit LX7
- External PSRAM, FLASH
- Ultra-low power 10uA
- 2.4G WIFI，Bluetooth 5，Bluetooth mesh
- GPIO, ADC , TOUCH, PWM , I2C, SPI , RMT, I2S , UART, LCD， CAMERA ，USB, JTAG
- 1* JST SH 1mm 4-Pin Socket, support I2C
- 1 * USB Type-C
- 1 * MX 1.25mm 2-Pin Socket， support charging
- 1 * Neopixel LED
ESP32-S3-DevKitC-1, BPI-Leaf-S3 Comparison
| Dev Board | BPI-Leaf-S3 | ESP32-S3-DevKitC-1 |
|---|---|---|
| GPIO Pins | 36 | 36 |
| 3.3v Pins | 3 | 3 |
| 5v Pins | 1 | 1 |
| GND Pins | 4 | 4 |
| ARGB LEDs | 1 on GPIO48 | 1 on GPIO48 |
| Chip Internal USB | USB-C Connector x 1 | MicroUSB Connector x 1 |
| UART TTL to USB | None | CP2102-MicroUSB Connector x 1 |
| External Battery Socket | 3.7v Li-ion Battery dock | None |
| Battery Charging | 500mA Charging Current | None |
| JST SH 1mm 4-Pin Socket | 1 | None |
The amount, numeric order, and spacing of IO pins on BPI-Leaf-S3 are identical to the Espressif ESP32-S3-DevKitC-1.
The BPI-Leaf-S3 dev board no longer equips traditional UART TTL to USB converter chip and its dedicated USB port. This is due to the ESP32-S3 chip's internal USB function being improved, supporting the CDC-ACM virtual serial port and JTAG interface, which is capable of software development and firmware management feature, that makes the external converter chip redundant.
Compared to the ESP32-S3-DevKitC-1 dev board, the BPI-Leaf-S3 adds an external battery socket and a charging circuit, capable of charging the battery via USB. When a 3.7v battery is connected, unplugging the USB will not cause the program to break, making it fit for multiple applications.
BPI-Leaf-S3 dev board is equipped with an I²C 4-pin dock, this stabilizes connection to other I²C peripherals. This dock is not only restricted to I²C connection, any module that requires a 3.3v pin, a GND pin, and one or two data pins can also be connected to the Leaf-S3 via this 4-pin dock.
Hardware Specs
| BPI-Leaf-S3 Spec | |
|---|---|
| SoC | ESP32-S3, Xtensa® dual-core 32-bit LX7 microprocessor |
| Clock Frequency | 240MHz MAX |
| Operating Temperature | -40℃~+85℃ |
| Internal ROM | 384 KB |
| Internal SRAM | 320 KB |
| Onboard FLASH ROM | 4MB |
| On-chip 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, ranging from -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 | [email protected] DC/DC |
| USB charge | Support |
| Maximum charging current | 500mA |
| Neopixel LED | 1 |
