What I want:
What I use:
How it works:
I received both of my devices with router/ end device firmware uploaded. I don’t get a connection from one XBee to another until I realized that it is necessary to change one XBee role to coordinator.
On the hardware side this can be done by means of the Uno circuit:
The point with this AT* commands is that you start the session with
and no line end. Than you have about 5s to change the line end to CR line end and execute the next command. The 5s are adjustable …
The XBee manual (pdf, ~150 pages) contains a complete command reference.
To upload the firmware linux guys no longer have to wine X-CTU. One can use the really nice and free
which can be downloaded from moltosenso.com. I got trouble with the version 0.9x but on 19th march they came up with the version 1.0. Again, to build .rpm out of the provided .dep I used alien -r as described her.
Two remarks on the upload process:
A version is reported as "ABCD". Digits ABC are the main release number and D is the revision number from the main release. "B" is a variant designator. The following variants exist in ZNet 2.5 firmware: Module Firmware * “0" - Coordinator, AT Command Mode (AP=0) * “1" - Coordinator, API Mode (AP=1,2) * “2" - Router / End Device AT Command Mode (AP=0) * “3" - Router / End Device API Mode (AP=1,2)
After uploading the firmware (I also uploaded the latest router /end device firmware) you have to change at least the destination address (ATDL and ATDH) of the end device to the coordinators ATSH and ATSL. Adapt the channels, baud rate and network id (ATCH, ATBD and ATID) on both devices.
I learned a lot from this tutorial: http://vimeo.com/3508123 so many thanks to @tellart
Network Manager IRON 1.0.0 available since 19/03/2012
moltosenso Network Manager™ IRON 1.0.0 is now available at the Download page, providing escaped API, automatic check for updates and more.
Check it out!
and it works like charm after some hours of fight with old version 0.9.
It seems to be a real linux alternative to the M$ X-CTU.
The company provides a .deb version. With my opensuse I say:
zypper in alien # 0.0 zypper in alien alien -r moltosenso-network-manager-iron_1.0-0_i386.deb rpm -Uhv moltosenso-network-manager-iron-1.0-1.i386.rpm
A big THX to Giulio from moltosenso support!
Every key is associated to a pair of so the host can recognize exactly what was happen and to which key, simply watching the single scan code. The set of make and break codes is called for the key is called scan code set and is stored in a matrix inside the keyboard controller. It’s important to keep in mind that the codes sent uniquely identify a key on the keyboard and not a character: is not defined any relationship between ASCII and scan code.
Interfacing The PS/2 Keyboard
Xbee Wireless Kit (Chip Antenna)
This is a complete XBee wireless communication kit with everything you need to get up and running quickly, including 2 1mW XBee modules with chip antenna, the popular USB XBee Explorer, an XBee shield as well as headers required for the XBee shield. The very…
A new book in prerelease from Greg Borenstein
play around with photo resistor array controlled by multiplexer; not sure if the circuit makes really sense. What I aim on is a flexible (mechanical) photo resistor n x m array with 1024 “color” steps
if you’re in Berlin and you have accidentaly the ESSID wactbbot in your scanning list you can telnet to 192.168.0.177 and:
n… negative … so that
let it roll on 25% speed forward until it crashes or you say
A multiplexer or demultiplexer enables you to expand the in-and outputs on your Arduino board. The 4051 is an 8 channel analog multiplexer / demultiplexer, thus:
Futhermore, the 4051 is able to work with analog values; in the case of the Arduino, you are able to use the analog inputs with a voltage between 0-5V and route them to an Analog-In Pin on your Arduino.