WRTnode2R

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2RSHLD-0.jpg

The most generous WRTnode by far

Bigger RAM, bigger ROM: almost a destop Linux
Duo-core & Duo-OS, mixed-up the incalculable Linux development resources and the real-time application
Arduino in javascript or python or any script in Linux
Making robot, making physical interaction, all in one and all in smooth

  • RAM expansion 4 times to 256MB than WRTnode1
  • Rom expansion 2 times to 32MB than WRTnode1
  • Power consumption is reduced by 50% compared with WRTnode1
  • Smaller 30% than WRTnode1
  • Simulating the acquisitions in OpenWrt directly, providing more than 14 native PWMs, providing nearly 50 GPIOs
  • Providing Arduino compatible APIs and programming in the scripts (node.js\python, etc.) in Linux, let more people begin hardware development
  • Real-time controlling with MCU, thus enable millisecond level response delay control, MCU using RT-THREAD real-time system



Hardware

  • CPU
    • MTK MT7688AN mips24k 580Mhz
  • DDR2 256MB RAM; NOR FLASH 32MB ROM
  • MCU
    • STM32F103T8U6, 5*ADC 12bit, 26*GPIO
    • 10*PWM@36MHz, CAN, 3*timers
  • 5*100Mbps Ethernet, Wi-Fi 802.11n 150Mbps
  • PCI-e X1、USB 2.0 HOST、2*UART
  • SPI master/slave
  • SD-XC for micro-SD
  • 4*PWM + 10*PWM(provide by MT7688 and STM32F103)
  • I2S (192K/24bit)
  • 46*GPIO(provide by MT7688 and STM32F103)
  • Size 60*29mm
  • In standard miniPCI interface package, for integration of the products
  • Specification chart

2R-detail4.png 2R-detail5.png

Software

  • OpenWrt based on CC 15.05
    • The default network segment changed to 192.168.8.1
    • Add WWAN port of apcli0 for the default WiFi repeater mode, and additional WRTnode series wireless management tools: aps/vw/ia, to manage the wireless connection
    • Add and adopt the MTK original drive ralink-wifi, ralink-ralink-mt76x8 for OpenWrt CC
    • Add WRTnode2R devices (DTS and related configuration), update the SPI driver
    • Add flash-stm for online burning STM32 chip, spi-bridge for online controlling STM32 chip.
  • MCU using RT-Thread v2.1.0 beta
    • Porting Maple to provide Arduino API (functions) compatibility
    • provides bootloader for OpenWrt burnning the STM32 firmware



More

WRTnode2R Specifications
WRTnode2R Starting guide
WRTnode2R pin map
WRTnode2R standerd shield
WRTnode2R hardware expansion and manufacturing guide
New method of Arduino API in linux: the STM32 developing guide of WRTnode2R