Revision as of 04:48, 25 July 2017

ARCA-V2 Series Wireless Connectivity Hubs

ARCA-V2 systems combine wireless communication (cellular WAN, WiFi/BLE LAN) with a power CPU system (TI BeagleBone compatible) and several wired interfaces such as Ethernet, USB, I2C. It is a multi-function system which can be used as:

• LAN to WAN Router gateway
• Data aggregator from a local network of devices
• Sensor to Cloud Gateway
• Remote access control system for industrial equipment

Description

Quick Start Guide

Software Setup Guide

CPU System

Modem

WiFi & BLE

ARCA-V2 has Realtek RTL8723BU chipset for WiFi+BLE.
RTL8723BU is an 802.11bgn 2.4G single-chip that integrates Wireless LAN (WLAN) and a network USB interface (USB 2.0) controller with integrated Bluetooth 2.1/3.0/4.0 controller.

In ARCA-V2 pre-compiled Yantrr Boot Image the WiFI interface wlan0 is configured in Master Mode i.e. AP/Hotspot mode. The default SSID of ARCA's WiFi hot-spot is its Board Serial Number and the password is yantrrI0T.

Instructions

• For checking RTL8723BU on USB Bus

root@Yantrr:~# lsusb 
Bus 002 Device 003: ID 19d2:ffeb ZTE WCDMA Technologies MSM 
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 0bda:b720 Realtek Semiconductor Corp. 
Bus 001 Device 002: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

• For checking current configuration of wlan0

root@Yantrr:~# iwconfig wlan0
wlan0     IEEE 802.11bg  ESSID:"20170725001"  Nickname:"<WIFI@REALTEK>"
          Mode:Master  Frequency:2.412 GHz  Access Point: 08:EA:40:F9:8C:36   
          Bit Rate:54 Mb/s   Sensitivity:0/0  
          Retry:off   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=72/100  Signal level=-57 dBm  Noise level=0 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

• For checking BLE interface status

root@Yantrr:~# hcitool dev
Devices:
        hci0    08:EA:40:F9:8C:37

• For scanning nearby BLE devices

root@Yantrr:~# hcitool lescan
LE Scan ...
6C:AA:5C:58:85:2F (unknown)
55:A3:32:7E:99:56 (unknown)
68:9E:19:CB:E6:8F (unknown)

GPS

A particular ARCA-V2 Model can have either embedded GPS or standalone GPS support.

The Embedded GPS is enabled through the Modem module with which the ARCA-V2 is assembled. Since the embedded GPS is handled through Modem, the NMEA-0183 messages are accessed using particular AT command with respect to Modem.

The standalone GPS module is interfaced over UART4 of ARCA-V2. NMEA-0183 messages from the GPS module can be accessed over /dev/ttyO4 port at baud rate of 19200.

USB Ports

ARCA-V2 have Three USB 2.0 HS host ports with type A socket. Each USB port has current rating of 500mA max.

LAN Port

ARCA-V2 has one dedicated Ethernet Port : 10/100Mbps, RJ45. Using this the ARCA-V2 can connect to the Local Network Router or can share the Cellular Data connection to other Local Devices through direct Ethernet connection or via network switches.

FLASH Memory

eMMC

microSD Card