Yun & Compatible

Details

Written by Sonny Yu

• Hardware and Yun

lsusb
...
Bus 001 Device 006: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port

opkg update
opkg install kmod-usb-serial kmod-usb-serial-pl2303

USB serial adapters

Install software:

opkg update
opkg list |grep serial |grep python
pyserial - 2.4-1 - serial port python bindings
opkg install pyserial

cd /usr/lib/python2.7
wget https://raw.githubusercontent.com/Xuth/tp4000_dmm/master/tp4000zc.py

nano /mnt/sda1/read.py

# load the module
import tp4000zc
# the port that we're going to use.  This can be a number or device name.
# on linux or posix systems this will look like /dev/tty2 or /dev/ttyUSB0
# on windows this will look something like COM3
port = '/dev/ttyUSB0'
# get an instance of the class
dmm = tp4000zc.Dmm(port)
# read a value
val = dmm.read()
print val.text       # print the text representation of the value
                     # something like: -4.9 millivolts DC
print val.numericVal # and the numeric value
                     # ie: -0.0048
# recycle the serial port
dmm.close()

python /mnt/sda1/read.py
-50.2 millivolts DC

-0.0502

Details

Written by Sonny Yu

• Utilities

Install software:

opkg update
opkg install nmap

Scan local network:

nmap -sP 192.168.0.0/24
Nmap scan report for 192.168.0.1
Host is up (0.011s latency).
MAC Address: 14:CF:E2:A2:42:A7 (Unknown)
...
Nmap scan report for 192.168.0.240
Host is up (0.00017s latency).
MAC Address: 00:19:B9:22:AE:4A (Dell)
Nmap done: 256 IP addresses (9 hosts up) scanned in 3.47 second

To scan for TCP connections:

nmap -sT 192.168.0.240
Starting Nmap 6.01 ( http://nmap.org ) at 2024-06-19 07:32 UTC
Nmap scan report for 192.168.0.240
Host is up (0.011s latency).
Not shown: 997 closed ports
PORT     STATE SERVICE
22/tcp   open  ssh
111/tcp  open  rpcbind
3306/tcp open  mysql
MAC Address: 00:19:B9:22:AE:4A (Dell)
Nmap done: 1 IP address (1 host up) scanned in 2.45 seconds

Details

Written by Sonny Yu

• Openwrt-sdk and Yun

mkdir ~/hub-ctrl
cd ~/hub-ctrl
wget http://www.gniibe.org/oitoite/ac-power-control-by-USB-hub/hub-ctrl.c

mips-openwrt-linux-uclibc-gcc   hub-ctrl.c -o hub-ctrl \
-I${CFLAGS} -L${LDFLAGS} \
-Wl,-rpath-link=${LDFLAGS}  -lusb
mips-openwrt-linux-uclibc-strip hub-ctrl

scp hub-ctrl [email protected]:/mnt/sda1

Control per port power/per indicator LED of USB Hub