¶ Introduction
The Banana Pi BPI-PicoW-S3 is a series of low-powered microcontrollers designed for IoT development and Maker DIY board.same size as Raspberry Pi Pico board,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.In terms of programming, the PicoW-S3 supports ESP-IDF, Arduino, micropython and other methods.
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¶ Key Features
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ESP32-S3, Xtensa® 32 bit LX7
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In-packge PSRAM 2MB, Extereal FLASH 8MB
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Ultra-low power 10uA
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2.4G WIFI, Bluetooth 5, Bluetooth mesh
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GPIO, ADC, TOUCH, PWM, I2C, SPI, RMT, I2S, UART, LCD, CAMERA, USB, JTAG
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microUSB
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Neopixel LED
¶ Espressif ESP32-S3
Esp32-S3 is an MCU chip that integrates 2.4 GHz Wi-Fi and Bluetooth 5 (LE) and supports Long Range mode. The ESP32-S3 runs on an Xtensa® 32-bit LX7 dual-core processor with a high frequency of 240 MHz, 512 KB built-in SRAM (TCM), 45 programmable GPIO pins, and a rich communication interface. Esp32-s3 supports larger capacity of high-speed Octal SPI flash and off-chip RAM, and supports user-configured data caching and instruction caching.
What follows is a description of the most important features of ESP32-S3.
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Wi-Fi + Bluetooth 5 (LE) Wireless Connectivity: ESP32-S3 supports a 2.4 GHz Wi-Fi (802.11 b/g/n) with 40 MHz of bandwidth support. The Bluetooth Low Energy subsystem supports long range through Coded PHY and advertisement extension. It also supports higher transmission speed and data throughput, with 2 Mbps PHY. Both Wi-Fi and BLE have superior RF performance that is maintained even at high temperatures.
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AI Acceleration Support: ESP32-S3 has additional support for vector instructions in the MCU, which provides acceleration for neural network computing and signal processing workloads. The software libraries for the above-mentioned optimized functions will become available very soon, in the form of updates to ESP-DSP and ESP-NN.
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Rich IO interfaces: ESP32-S3 has 45 programmable GPIOs and common peripheral interfaces such as SPI, I2S, I2C, PWM, RMT, ADC, UART, SD/MMC host controller and TWAITM controller. Fourteen of the GPIOs can be configured as capacitive touch inputs for HMI interaction. In addition, ESP32-S3 is equipped with an ultra-low power coprocessor (ULP) and supports multiple low-power modes, making it widely applicable to various low-power application scenarios.
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Security mechanism: ESP32-S3 provides comprehensive security mechanism and protection measures for iot devices to prevent all kinds of malicious attacks and threats. It supports Flash encryption based on AES-XTS algorithm, secure startup based on RSA algorithm, digital signature and HMAC. Esp32-s3 also includes a new "World Controller" module, which provides two non-interfering execution environments to implement a trusted execution environment or permission separation mechanism.
¶ Getting Start
¶ Hardware
¶ Hardware interface
¶ BPI-PicoW-S3 Photo
¶ Hardware spec
| HardWare Specification of BPI-PicoW-S3 | |
|---|---|
SoC |
ESP32-S3, Xtensa® 32-bit LX7 dual core |
Basic frequency |
240MHz MAX |
Operating temperature |
-40℃~+85℃ |
On-chip ROM |
384KB |
On-chip SRAM |
512KB |
Extereal FLASH |
8MB |
In-packge PSRAM |
2MB |
WIFI |
IEEE 802.11 b/g/n, 2.4Ghz band, 150Mbps |
Bluetooth |
Bluetooth 5, Bluetooth mesh |
GPIO |
BPI-PicoW-S3 has led out 27 available GPIOs |
ADC |
2 × 12-bit SAR ADC supporting 18 analog channel inputs |
TOUCH Capacitive Touch Sensor |
14 |
SPI |
4 |
I2C |
2. Support master or slave mode |
I2S |
2, input and output of serial stereo data |
LCD |
1, support 8-bit ~16-bit parallel RGB, I8080, MOTO6800 interface |
CAMERA |
1, supports 8-bit ~16-bit DVP image sensor interface |
UART |
3, supports asynchronous communication (RS232 and RS485) and IrDA |
PWM |
8 independent channels, 14-bit precision |
MCPWM |
2 |
USB |
1 × Full Speed USB 2.0 OTG, MicroUSB Female |
USB Serial/JTAG Controller |
1, USB full speed standard, CDC-ACM, JTAG |
Temperature sensor |
1, the measurement range is –20 °C to 110 °C, for monitoring the internal temperature of the chip |
SD/MMC |
1 × SDIO host interface, with 2 card slots, supports SD card 3.0 and 3.01, SDIO 3.0, CE-ATA 1.1, MMC 4.41, eMMC 4.5 and 4.51 |
TWAI® Controller |
1, compatible with ISO11898-1 (CAN specification 2.0) |
Generic DMA Controller |
5 receive channels and 5 transmit channels |
RMT |
4-channel transmit, 4-channel receive, shared 384 x 32-bit RAM |
Pulse Counter |
4 pulse count controllers (units), each unit has 2 independent channels |
Timer |
4 × 54-bit general-purpose timers, 16-bit clock prescaler, 1 × 52-bit system timer, 3 × watchdog timers |
External crystal |
40Mhz |
RTC and Low Power Management |
Power Management Unit (PMU) + Ultra Low Power Coprocessor (ULP) |
Low power consumption current |
10uA |
Working Voltage |
3.3V |
Input voltage |
3.3V~5.5V |
Maximum discharge current |
[email protected] DC/DC |
Controllable full color LED |
1 |
Controllable monochrome LED |
1 |
¶ Hardware Size
The pin spacing is compatible with universal boards (hole boards, dot matrix boards) and breadboards, which is convenient for debugging applications.
| BPI-PicoW-S3 size Spec | |
|---|---|
Pin spacing |
2.54mm |
Hole Spacing |
11.4mm/ 47mm |
Hole size |
Inner diameter 2.1mm/Outer diameter 3.4mm |
Mainboard size |
21 × 51.88(mm)/0.83 x 2.04(inches) |
Thickness |
1.2mm |
¶ Pin define
| Peripheral Interface | Signal | Pins |
|---|---|---|
ADC |
ADC1_CH0~9 |
GPIO 1~10 |
ADC2_CH0~9 |
GPIO 11~20 |
|
Touch Sensor |
TOUCH1~14 |
GPIO 1~14 |
JTAG |
MTCK |
GPIO 39 |
MTDO |
GPIO 40 |
|
MTDI |
GPIO 41 |
|
MTMS |
GPIO 42 |
|
UART |
Default assigned pins, can be redefined as any GPIO |
|
U0RXD_in |
GPIO 44 |
|
U0CTS_in |
GPIO 16 |
|
U0DSR_in |
Any GPIO |
|
U0TXD_out |
GPIO43 |
|
U0RTS_out |
GPIO 15 |
|
U0DTR_out |
Any GPIO |
|
U1RXD_in |
GPIO 18 |
|
U1CTS_in |
GPIO 20 |
|
U1DSR_in |
Any GPIO |
|
U1TXD_out |
GPIO 17 |
|
U1RTS_out |
GPIO 19 |
|
U1DTR_out |
Any GPIO |
|
U2 |
Any GPIO |
|
I2C |
Any GPIO |
|
PWM |
Any GPIO |
|
I2S |
Any GPIO |
|
CAMERA |
Any GPIO |
|
RMT |
Any GPIO |
|
SPI0/1 |
Used for FLASH and PSRAM |
|
SPI2/3 |
Any GPIO |
|
Pulse Counter |
Any GPIO |
|
USB OTG |
D- |
GPIO 19 (internal PHY) |
D+ |
GPIO 20 (internal PHY) |
|
VP |
GPIO 42 (External PHY) |
|
VM |
GPIO 41 (External PHY) |
|
RCV |
GPIO21 (External PHY) |
|
OEN |
GPIO 40 (External PHY) |
|
VPO |
GPIO 39 (External PHY) |
|
VMO |
GPIO38 (External PHY) |
|
USB Serial/JTAG |
D- |
GPIO 19 (internal PHY) |
D+ |
GPIO 20 (internal PHY) |
|
VP |
GPIO 42 (External PHY) |
|
VM |
GPIO 41 (External PHY) |
|
OEN |
GPIO 40 (External PHY) |
|
VPO |
GPIO 39 (External PHY) |
|
VMO |
GPIO38 (External PHY) |
|
SD/MMC |
Any GPIO |
|
MCPWM |
Any GPIO |
|
TWAI |
Any GPIO |
|
Full Color LED |
Any GPIO |
|
Monochrome LED |
Any GPIO |
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¶ Development
¶ Source Code
¶ Firmware
¶ Easy to buy sample
| Official AliExpress: https://www.aliexpress.com/item/1005004775634442.html |
| SinoVoip Aliexpress : https://www.aliexpress.com/item/1005004775859077.html |
| Official Taobao: https://item.taobao.com/item.htm?spm=a2126o.success.0.0.25b04831CHV1Nc&id=684134360199 |
| OEM&OEM customized service: [email protected] |