Difference between revisions of "BPI-PicoW-S3"

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[[zh:BPI-PicoW-S3]]
+
[[zh:BPI-PicoW-S3_开发板]]
  
−
= About BPI-PicoW-S3 =
+
= Introduction =
 
[[File:BPI-PicoW-S3 banner.png|800px]]
 
[[File:BPI-PicoW-S3 banner.png|800px]]
  
 
[[File:PICO-1000-7.jpg|thumb|[[BPI-PicoW-S3 ]]with ESP32-S3]]
 
[[File:PICO-1000-7.jpg|thumb|[[BPI-PicoW-S3 ]]with ESP32-S3]]
−
[[File:PICO-1000-5.png|thumb|[[BPI-PicoW-S3 ]]with ESP32-S3]]
+
[[File:Banana_Pi_BPI-PicoW-S3_5.jpg|thumb|[[BPI-PicoW-S3 ]]with ESP32-S3]]
 +
[[File:BPI-Centi-S3_2.jpg|thumb|[[BPI-Centi-S3]] with ESP32-S3 front]]
 
[[File:Leaf-S3-incline-front.jpg|thumb|[[BPI-Leaf-S3]] with ESP32-S3]]
 
[[File:Leaf-S3-incline-front.jpg|thumb|[[BPI-Leaf-S3]] with ESP32-S3]]
 
[[File:Smart-01-03.gif|thumb|[[BPI-Smart ]]with ESP8266]]
 
[[File:Smart-01-03.gif|thumb|[[BPI-Smart ]]with ESP8266]]
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[[File:ESP32_6.JPG|thumb|[[BPI-UNO32]] with ESP32 design]]
 
[[File:ESP32_6.JPG|thumb|[[BPI-UNO32]] with ESP32 design]]
  
−
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
+
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.
  
 
== key features ==
 
== key features ==
  
 
*ESP32-S3, Xtensa® 32 bit LX7
 
*ESP32-S3, Xtensa® 32 bit LX7
−
* Off-chip PSRAM, FLASH
+
* In-packge PSRAM 2MB, Extereal FLASH 8MB
 
* Ultra-low power 10uA
 
* Ultra-low power 10uA
 
* 2.4G WIFI, Bluetooth 5, Bluetooth mesh
 
* 2.4G WIFI, Bluetooth 5, Bluetooth mesh
 
* GPIO, ADC, TOUCH, PWM, I2C, SPI, RMT, I2S, UART, LCD, CAMERA, USB, JTAG
 
* GPIO, ADC, TOUCH, PWM, I2C, SPI, RMT, I2S, UART, LCD, CAMERA, USB, JTAG
 
*1*microUSB
 
*1*microUSB
−
*1*Full color LED
+
*1*Neopixel LED
  
−
== BPI-PicoW-S3 VS Rraspberry Pi PicoW, BPI-Leaf-S3, ESP32-S3-DevKitC-1 ==
+
== BPI-PicoW-S3 VS Raspberry Pi PicoW, BPI-Leaf-S3, ESP32-S3-DevKitC-1 ==
  
 
{| class="wikitable"
 
{| class="wikitable"
Line 30: Line 31:
 
! Development board
 
! Development board
 
!BPI-PicoW-S3
 
!BPI-PicoW-S3
−
!Rraspberry Pi PicoW
+
!Raspberry Pi PicoW
 
!BPI-Leaf-S3
 
!BPI-Leaf-S3
 
!ESP32-S3-DevKitC-1
 
!ESP32-S3-DevKitC-1
 
|-
 
|-
−
| Bring out GPIO
+
| GPIO pinout
 
| 27
 
| 27
 
| 27
 
| 27
Line 58: Line 59:
 
| 4
 
| 4
 
|-
 
|-
−
| Full color LED light
+
| Full color LED
 
| 1 on GPIO48
 
| 1 on GPIO48
 
| None
 
| None
Line 97: Line 98:
 
== Espressif ESP32-S3 ==
 
== Espressif ESP32-S3 ==
  
−
ESP32-S3 is a dual-core Xtensa LX7 MCU, capable of running at 240 MHz. Apart from its 512 KB of internal SRAM, it also comes with integrated 2.4 GHz, 802.11 b/g/n Wi-Fi and Bluetooth 5 (LE ) connectivity that provides long-range support. It has 45 programmable GPIOs and supports a rich set of peripherals. Compared with ESP32, it supports larger, high-speed octal SPI flash, and PSRAM with configurable data and instruction cache.
+
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.
 
What follows is a description of the most important features of ESP32-S3.
Line 103: Line 104:
 
* 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.
 
* 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.
  
−
* 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-WHO and ESP-Skainet.
+
* 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.
  
−
* Rich Set of IO Peripherals: ESP32-S3 has 44 programmable GPIOs, namely 10 more GPIOs than those of ESP32. ESP32-S3 supports all the commonly-used peripherals, such as SPI, I2S, I2C, PWM, RMT, ADC and UART , SD/MMC host and TWAITM. In total, 14 GPIOs can be configured as capacitive touch input for HMI applications. Apart from all these peripherals, however, ESP32-S3 is also equipped with an ultra-low-power (ULP) core that supports multiple low-power modes in a variety of such use-cases.
+
* 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.
  
−
* Security: ESP32-S3 provides all the necessary security requirements for building securely connected devices, without requiring any external components. It supports AES-XTS-based flash encryption and RSA-based secure boot. In addition, ESP32-S3 has a digital signature peripheral and an HMAC module, which provide functionality that is similar to the hardware secure element, thus protecting the private or symmetric key from software attacks and identity theft. ESP32-S3 also has a “World Controller” peripheral that provides two fully-isolated execution environments, which enable the implementation of a trusted-execution environment or a privilege-separation scheme.
+
* 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==
 +
 
 +
*[https://bpi-steam.com/PicoW_S3_doc/en/ Getting Started with BPI-PicoW-S3]
  
 
= Hardware =
 
= Hardware =
Line 124: Line 129:
 
| ESP32-S3, Xtensa® 32-bit LX7 dual core
 
| ESP32-S3, Xtensa® 32-bit LX7 dual core
 
|-
 
|-
−
| Main frequency
+
| Basic frequency
 
| 240MHz MAX
 
| 240MHz MAX
 
|-
 
|-
Line 134: Line 139:
 
|-
 
|-
 
| On-chip SRAM
 
| On-chip SRAM
−
| 320KB
+
| 512KB
 +
|-
 +
| Extereal FLASH
 +
| 8MB
 
|-
 
|-
−
| Onboard FLASH ROM
+
| In-packge PSRAM
 
| 2MB
 
| 2MB
−
|-
 
−
| On-chip peripheral PSRAM
 
−
| 8MB
 
 
|-
 
|-
 
| WIFI
 
| WIFI
Line 227: Line 232:
 
|-
 
|-
 
| Controllable full color LED
 
| Controllable full color LED
 +
| 1
 +
|-
 +
| Controllable monochrome LED
 
| 1
 
| 1
 
|}
 
|}
  
−
== Size ==
+
== Hardware Size ==
  
 
[[File:BPI-Pico-S3-board-dimension.png|800px]]
 
[[File:BPI-Pico-S3-board-dimension.png|800px]]
Line 241: Line 249:
 
| 2.54mm
 
| 2.54mm
 
|-
 
|-
−
| Mounting Hole Spacing
+
| Hole Spacing
 
| 11.4mm/ 47mm
 
| 11.4mm/ 47mm
 
|-
 
|-
−
| Mounting hole size
+
| Hole size
 
| Inner diameter 2.1mm/Outer diameter 3.4mm
 
| Inner diameter 2.1mm/Outer diameter 3.4mm
 
|-
 
|-
−
| Motherboard size
+
| Mainboard size
 
| 21 × 51.88(mm)/0.83 x 2.04(inches)
 
| 21 × 51.88(mm)/0.83 x 2.04(inches)
 
|-
 
|-
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| colspan="2" | Any GPIO
 
| colspan="2" | Any GPIO
 
|-
 
|-
−
| Color LED
+
| Full Color LED
 
| colspan="2" | GPIO 48
 
| colspan="2" | GPIO 48
 +
|-
 +
| Monochrome LED
 +
| colspan="2" | GPIO 46
 
|}
 
|}
  
 
= Software =
 
= Software =
 +
 +
== CircuitPython ==
 +
 +
[[File:CircuitPython_Repo_header_logo.jpg | 800px]]
 +
 +
CircuitPython is an education-friendly open source derivative of MicroPython, supported and developed by Adafruit Industries.
 +
 +
In terms of ease of use, it goes a step further on the basis of MicroPython.
 +
 +
When the development board using CircuitPython firmware is connected to the PC, the PC will immediately get a USB storage disk.
 +
 +
And the python script file can be copied to this disk to allow the program to run on the development board.
 +
 +
This allows users to use it out of the box, because most modern personal operating systems and home PCs support USB storage disks.
 +
 +
Of course, in order to use REPL, at least a serial communication software needs to be installed, or a text editor that supports this function, such as Mu editor.
 +
 +
The CircuitPython community provides an extremely rich peripheral driver library, APIs documentation, and tutorials.
 +
 +
Even if there is no programming foundation, no hardware foundation, you can quickly get started from scratch.
 +
 +
CircuitPython does not support some microcontroller-specific libraries such as timer and hardware interrupt, nor does it support the multi-threaded _thread library. It only provides the asyncio library for writing concurrent code.
 +
 +
The code is very portable between microcontrollers supported by CircuitPython and single-board computers (SBCs) supported by Blinka. This is thanks to its efforts to unify APIs.
 +
 +
* [https://codewith.mu/ Mu Editor Download Page]
 +
 +
* [[ code_circuitpython_with_mu_en | Getting Started: Code CircuitPython with Mu Editor ]]
 +
 +
'''Supported by the adafruit/circuitpython GitHub repository'''
 +
 +
https://github.com/adafruit/circuitpython/pull/7031
 +
 +
'''Supported by the adafruit/tinyuf2 GitHub repository'''
 +
 +
https://github.com/adafruit/tinyuf2/pull/250
 +
 +
'''Reference Resources''' :
 +
 +
* [https://learn.adafruit.com/welcome-to-circuitpython Adafruit: Welcome To CircuitPython]
 +
 +
* [https://learn.adafruit.com/getting-started-with-web-workflow-using-the-code-editor/overview Adafruit:CircuitPython Web Workflow Code Editor Quick Start]
 +
 +
* [https://circuitpython.readthedocs.io/ Adafruit:CircuitPython Docs]
 +
 +
* [https://github.com/todbot/circuitpython-tricks GitHub:CircuitPython-tricks]
 +
 +
* [https://forum.banana-pi.org/t/bpi-pico-s3-getting-started-code-circuitpython-with-mu-editor/13969 BPI-Pico-S3 Getting Started, Code CircuitPython with Mu Editor]
  
 
==ESP-IDF==
 
==ESP-IDF==
Line 456: Line 515:
 
[[File:Mircopython.png | 800px]]
 
[[File:Mircopython.png | 800px]]
  
−
MicroPython implements most of the features and syntax of Python 3, which is easy to learn and use, and can be downloaded directly into the chip to run the verification program without compiling.
+
MicroPython is a lean and efficient implementation of the Python 3 programming language that includes a small subset of the Python standard library and is optimised to run on microcontrollers and in constrained environments.
 +
 
 +
Crowdfunded and open sourced in 2013 by Damien P. George.
 +
 
 +
The most obvious difference between it and the use of C programs to develop microcontrollers is that there is no need for lengthy compilation when verifying code.
 +
 
 +
Using serial communication software, enter commands through the REPL(read-eval-print-loop) to control the microcontroller, just like Python's REPL.
 +
 
 +
It is also possible to use some tools to upload a python script file to run inside the microcontroller.
 +
 
 +
Its implementation of Python3 includes the _thread library that supports multithreading and the asyncio library for writing concurrent code.
  
−
Regardless of whether you have a programming foundation or not, MicroPython is far less difficult to get started with than other programming languages. Its code is easy to read, and the open source community has accumulated rich resources over the years. Just like Python, it has strong vitality and application value.
+
MicroPython aims to be as compatible with normal Python as possible to allow you to transfer code with ease from the desktop to a microcontroller or embedded system.
  
−
* '''[https://github.com/BPI-STEAM/BPI-Leaf-S3-Doc/tree/main/Example/MicroPython-en#1%E5%BF%AB%E9%80%9F%E4%B8%8A%E6%89%8B GitHub: MicroPython Starting Guide]'''
+
At the same time it also has some libraries specific for microcontrollers in order to take full advantage of the hardware features inside the microcontroller chip, such as timers, hardware interrupts, WiFi, etc., depending on the specific hardware.
  
−
* [[ micropython_running environment setup | MicroPython running environment setup (Thonny IDE) ]]
+
While having the above features, it is compact enough to fit and run within just 256k of code space and 16k of RAM.
  
−
* [[ micropython_firmware download and burning | MicroPython firmware download and burning ]]
+
If you know Python you already know MicroPython.
 +
 
 +
On the other hand, the more you learn about MicroPython the better you become at Python.
  
 
==Arduino==
 
==Arduino==
Line 470: Line 541:
 
[[File:Arduino_logo_1200x350.png | 800px]]
 
[[File:Arduino_logo_1200x350.png | 800px]]
  
−
Arduino is an open source embedded software and hardware development platform for users to create interactive embedded projects.
+
Arduino is an open source embedded hardware and software development platform for users to create interactive embedded projects.
 +
 
 +
The Arduino integrated development environment (IDE) is the software core of this platform, using the C/C++ programming language to develop projects.
 +
 
 +
The biggest feature of Arduino is to provide a unified API to develop all microcontrollers it supports, with very good code portability and reusability.
 +
 
 +
In addition, it simplifies the process of building a development environment, and all the development environments of microcontrollers it supports can be installed and configured with one click.
 +
 
 +
It also provides simple one-click mechanisms to compile and upload programs to a microcontroller.
 +
 
 +
Arduino IDE also integrates many routines, supplemented by a large number of comments, which can help users get started quickly.
 +
 
 +
A large number of excellent open source projects accumulated in the Arduino community are available for reference and learning, and there are quite a few driver libraries and APIs provided by chip manufacturers.
  
 
* [https://www.arduino.cc/en/software Arduino IDE download address] | [https://docs.espressif.com/projects/arduino-esp32/en/latest/installing.html#installing Install and configure Arduino-ESP32 operating environment]
 
* [https://www.arduino.cc/en/software Arduino IDE download address] | [https://docs.espressif.com/projects/arduino-esp32/en/latest/installing.html#installing Install and configure Arduino-ESP32 operating environment]
Line 477: Line 560:
  
 
=Resources=
 
=Resources=
 +
BPI-PicoW-S3 schematic : https://github.com/BPI-STEAM/BPI-PicoW-Doc/blob/main/sch/BPI-PicoW-V0.4.pdf
  
 
=Easy to buy sample=
 
=Easy to buy sample=
  
−
* Official AliExpress:
+
* Official AliExpress:https://www.aliexpress.com/item/1005004775634442.html
−
* Official Taobao:
+
* 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]
 
* OEM&OEM customized service: [email protected]

Latest revision as of 17:28, 10 September 2023


Introduction

BPI-PicoW-S3 banner.png

BPI-PicoW-S3 with ESP32-S3
BPI-PicoW-S3 with ESP32-S3
BPI-Centi-S3 with ESP32-S3 front
BPI-Leaf-S3 with ESP32-S3
BPI-Smart with ESP8266
BPI-Bit with ESP32
BPI-AI Kendryte K210 RISC-V
BPI-UNO32 with ESP32 design

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.

key features

  • ESP32-S3, Xtensa® 32 bit LX7
  • In-packge PSRAM 2MB, Extereal FLASH 8MB
  • 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*microUSB
  • 1*Neopixel LED

BPI-PicoW-S3 VS Raspberry Pi PicoW, BPI-Leaf-S3, ESP32-S3-DevKitC-1

Development board BPI-PicoW-S3 Raspberry Pi PicoW BPI-Leaf-S3 ESP32-S3-DevKitC-1
GPIO pinout 27 27 36 36
3.3v pin 1 1 2 2
5v pin 2 2 1 1
GND pin 8 8 4 4
Full color LED 1 on GPIO48 None 1 on GPIO48 1 on GPIO48
Chip directly connected to USB MicroUSB port x1 MicroUSB port x1 Type-C USB port x1 MicroUSB port x1
UART TTL to USB None None None CP2102-MicroUSB interface x1
External battery socket None None 3.7v lithium battery power supply interface None
Battery charging None None 500mA charging None
I²C 4pin connector None None 1 None

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.

  • 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.
  • 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.
  • 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.
  • 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-V0.4-IO.png

Hardware spec

BPI-PicoW-S3 Spec Sheet
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

BPI-Pico-S3-board-dimension.png

BPI-PicoW-S3 size chart
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

The pin spacing is compatible with universal boards (hole boards, dot matrix boards) and breadboards, which is convenient for debugging applications.

GPIO define

BPI-PicoW-S3 peripheral GPIO pin assignment
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
LCD 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 GPIO 48
Monochrome LED GPIO 46

Software

CircuitPython

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CircuitPython is an education-friendly open source derivative of MicroPython, supported and developed by Adafruit Industries.

In terms of ease of use, it goes a step further on the basis of MicroPython.

When the development board using CircuitPython firmware is connected to the PC, the PC will immediately get a USB storage disk.

And the python script file can be copied to this disk to allow the program to run on the development board.

This allows users to use it out of the box, because most modern personal operating systems and home PCs support USB storage disks.

Of course, in order to use REPL, at least a serial communication software needs to be installed, or a text editor that supports this function, such as Mu editor.

The CircuitPython community provides an extremely rich peripheral driver library, APIs documentation, and tutorials.

Even if there is no programming foundation, no hardware foundation, you can quickly get started from scratch.

CircuitPython does not support some microcontroller-specific libraries such as timer and hardware interrupt, nor does it support the multi-threaded _thread library. It only provides the asyncio library for writing concurrent code.

The code is very portable between microcontrollers supported by CircuitPython and single-board computers (SBCs) supported by Blinka. This is thanks to its efforts to unify APIs.

Supported by the adafruit/circuitpython GitHub repository

https://github.com/adafruit/circuitpython/pull/7031

Supported by the adafruit/tinyuf2 GitHub repository

https://github.com/adafruit/tinyuf2/pull/250

Reference Resources :

ESP-IDF

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ESP-IDF is an IoT development framework officially launched by Espressif, supporting Windows, Linux and macOS operating systems.

It is recommended that developers install ESP-IDF via an integrated development environment (IDE):

Or select the corresponding manual installation process according to the operating system:

API:

In order to enable your BPI-Leaf-S3 development board to flash FLASH through USB-CDC, you need to set the development board to firmware download mode.

There are two methods of operation:

1. Connect to the computer via USB, press and hold the BOOT button, then press the RESET button and release it, and finally release the BOOT button.

2. Press and hold the BOOT button when the power supply is disconnected, then connect to the computer via USB, and finally release the BOOT button.

You need to confirm the interface in the device manager. The serial number of the interface in the firmware download mode and the normal mode may be different.

MicroPython

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MicroPython is a lean and efficient implementation of the Python 3 programming language that includes a small subset of the Python standard library and is optimised to run on microcontrollers and in constrained environments.

Crowdfunded and open sourced in 2013 by Damien P. George.

The most obvious difference between it and the use of C programs to develop microcontrollers is that there is no need for lengthy compilation when verifying code.

Using serial communication software, enter commands through the REPL(read-eval-print-loop) to control the microcontroller, just like Python's REPL.

It is also possible to use some tools to upload a python script file to run inside the microcontroller.

Its implementation of Python3 includes the _thread library that supports multithreading and the asyncio library for writing concurrent code.

MicroPython aims to be as compatible with normal Python as possible to allow you to transfer code with ease from the desktop to a microcontroller or embedded system.

At the same time it also has some libraries specific for microcontrollers in order to take full advantage of the hardware features inside the microcontroller chip, such as timers, hardware interrupts, WiFi, etc., depending on the specific hardware.

While having the above features, it is compact enough to fit and run within just 256k of code space and 16k of RAM.

If you know Python you already know MicroPython.

On the other hand, the more you learn about MicroPython the better you become at Python.

Arduino

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Arduino is an open source embedded hardware and software development platform for users to create interactive embedded projects.

The Arduino integrated development environment (IDE) is the software core of this platform, using the C/C++ programming language to develop projects.

The biggest feature of Arduino is to provide a unified API to develop all microcontrollers it supports, with very good code portability and reusability.

In addition, it simplifies the process of building a development environment, and all the development environments of microcontrollers it supports can be installed and configured with one click.

It also provides simple one-click mechanisms to compile and upload programs to a microcontroller.

Arduino IDE also integrates many routines, supplemented by a large number of comments, which can help users get started quickly.

A large number of excellent open source projects accumulated in the Arduino community are available for reference and learning, and there are quite a few driver libraries and APIs provided by chip manufacturers.

Resources

BPI-PicoW-S3 schematic : https://github.com/BPI-STEAM/BPI-PicoW-Doc/blob/main/sch/BPI-PicoW-V0.4.pdf

Easy to buy sample

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