Noduino Quantum

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目录

1 Overview

Quantum-6.jpg Quantum-3.jpg Quantum-4.jpg Quantum-5.jpg


  • CP2102 USB to UART Chip
  • ESP32 Bluetooth and WiFi SoC
  • 40MHz Crystal (±10ppm, ±10ppm)
  • 16MB SPI Flash
  • 5V - 12V Power Supply
  • FreeRTOS


  • UART Baud rate is 115200



2 Flash mode

We use two types of 16MB SPI flash:

  • Winbond W25Q128xxxx, Support mode: QIO / QOUT / DIO / DOUT; 80MHz / 40MHz
  • MXIC 25L128xxx, Support mode: DIO / DOUT; 80MHz / 40MHz



3 Pin Map

We place the PIN map on the back of the board:

Quantum-back.jpg


You guys can refer to this doc for more details: http://www.espressif.com/sites/default/files/documentation/esp32_chip_pin_list_en_0.pdf

Esp32-pin-iomux.png



4 Quick Start

4.1 USB2UART

Quantum use the CP2102 USB to UART chip, you need to install the driver firstly. Accessing following url to get your driver:


The default baud rate is 115200



4.2 Arduino

We have pushed the support of Quantum board into arduino-esp32. Following steps to try the arduino quickly:

  • Install Arduino IDE
  • Go to Arduino IDE installation directory:
$ cd /PATH/TO/Arduino
$ cd hardware
$ mkdir espressif
$ cd espressif
$ git clone git://github.com/espressif/arduino-esp32.git esp32
$ cd esp32/tools
$ python get.py
  • Restart Arduino IDE


Example: ESP32 RFID



4.3 ESP IDF

4.3.1 Linux

Please refer to: https://github.com/icamgo/esp-idf/blob/master/docs/linux-setup.rst

Simple steps:

$ sudo apt-get install git wget make libncurses-dev flex bison gperf python python-serial
$ wget https://dl.espressif.com/dl/xtensa-esp32-elf-linux32-1.22.0-59.tar.gz
$ mkdir -p toolchain
$ tar zxf xtensa-esp32-elf-linux32-1.22.0-59.tar.gz -C toolchain
$ export PATH=$PATH:`pwd`/toolchain/xtensa-esp32-elf/bin
$
$ git clone --recursive git://github.com/icamgo/esp-idf.git
$ export IDF_PATH=`pwd`/esp-idf
$ cd esp-idf/examples/09_onchip_sensor
$ make menuconfig
$ make flash



4.3.2 MAC OS

Please refer to: https://github.com/icamgo/esp-idf/blob/master/docs/macos-setup.rst



4.3.3 Windows

Please refer to: https://github.com/icamgo/esp-idf/blob/master/docs/windows-setup.rst



4.4 Auto Reset

You need to press the RST buttom after uploading the firmware into flash. If you guys do not like to do this please patch the /path/to/esp-idf/components/esptool_py/esptool/esptool.py :

diff --git a/esptool.py b/esptool.py
index 755f4cb..ff92c91 100755
--- a/esptool.py
+++ b/esptool.py
@@ -197,6 +197,12 @@ class ESPLoader(object):
               + '\xc0'
         self._port.write(buf)
 
+    def reset_to_app(self):
+        self._port.setDTR(False)
+        self._port.setRTS(True)
+        time.sleep(0.05)
+        self._port.setRTS(True)
+
     """ Calculate checksum of a blob, as it is defined by the ROM """
     @staticmethod
     def checksum(data, state=ESP_CHECKSUM_MAGIC):
@@ -1421,7 +1427,6 @@ def dump_mem(esp, args):
         sys.stdout.flush()
     print 'Done!'
 
-
 def write_flash(esp, args):
     """Write data to flash
     """
@@ -1503,6 +1508,7 @@ def write_flash(esp, args):
     if args.verify:
         print 'Verifying just-written flash...'
         verify_flash(esp, args, header_block)
+    esp.reset_to_app()
 
 
 def image_info(args):

Then Quantum can reset to run your app automatically after uploading the firmware into flash



5 Turtorial



6 Peripherals



  • ESP32 TSL2561 TSL2561 Digital Luminosity/Lux/Light Sensor (I2C interface)
  • ESP32 BH1750 BH1750 Digital Light Sensor (I2C interface)
  • ESP32 BMP180 BMP180 Barometric Pressure/Temperature/Altitude Sensor (I2C interface)
  • ESP32 BMP085 BMP085 Barometric Pressure/Temperature/Altitude Sensor (I2C interface)


  • ESP32 SHT2x SHT2X Digital Humidity & Temperature Sensor (I2C interface)
  • ESP32 DHT21 DHT21(AM2301) Digital Temperature & Humidity Sensor
  • ESP32 DHT11 DHT11 Digital Humidity & Temperature Sensor
  • ESP32 PT1000 Using a 18-bit ADC MCP3421 (I2C interface)






7 ESP32 Arch

ESP32 block diagram:

Esp32-block-diagram.jpg

ESP32 use two LX6 core which ISA is xtensa.


We plan to write the document of the xtensa architecture like the MIPS or SPARC


The Xtensa instruction set is designed to meet the diverse requirements of dataplane processing. This 32-bit architecture features a compact 16- and 24-bit instruction set with modeless switching for maximum power efficiency and performance. The base instruction set has 80 RISC instructions and includes a 32-bit ALU, up to 64 general-purpose 32-bit registers, and six special-purpose registers. Using this instruction set, you can expect significant code size reductions that result in higher code density and better power dissipation.





8 Hardware

Noduino-quantum-v0.8-sch.png


Noduino-quantum-v0.8-layouut.png



9 Reference

For more information please refer to

























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