APRSTT - Touch Tones

Using touch tones to do APRS:

• http://www.aprs.org/aprstt.html
• http://www.aprs.org/aprstt/aprstt-v.txt - the spec
• https://www.tapr.org/pdf/DCC2010-APRSSpeak-KA2UPW.pdf - implementation
• http://info.aprs.net/index.php?title=APRStt - the APRS wiki

Touch tones?   Why not use voice input?  As long as a raspberry pi has Internet access to Google, it should be fairly straight forward to replace the touch touch responses with speech commands.

http://www.raspberrypi.org/meet-jasper-open-source-voice-computing/

RPI MESH Gateway (14.142)

The latest Raspberry PI was picked up from Zeus this morning. Now to get a memory chip this afternoon and power it up tonight. This system is going for a FAST memory instead of a big memory. Between using /tmpfs RAM drive for the really fast needs and a thumb drive for caching content I should be able to minimize use of the SD card.

Basic functionality

This server will connect to a source of Internet access - either as a WiFi Client or by wired 10/100/1000 Ethernet. This Internet service will be 'managed' and then made available to the to a NW-MESH system.

* Netgear 2000 XZY network extender for the preliminary WIFI client access. (May need a different device in the future that allows replacing the antenna.)
* Raspberry PI for network caching and filtering services. Also some minimal standalone services can be hosted.
* WRT54G NW-MESH box to connect to the PI and provide mesh access
* (optional) another Access Point on the mesh to allow for local Wireless user access.
* Filtered Power strip - UPS? - 12V battery?
* Box - tool box or battery box - to make everything transportable.

Specific Goals so far:

* Caching DNS
* Squid for Web caching
* Fail2ban for secure web access
* denyhosts
* Block ad sources (URL goes here)
* ntpd time server - as long as it's on the web which is the purpose of this device.

Common services and applications installed

* screen
* htop
* email - it's on the web so use it
* snmp

Optional

* lighttpd and php
* mrtg

TODO Next

* Program memory. Boot up. Enable SSH. Set Host Name. Set Keyboard to English. Update and upgrade OS. Install common services and applications. Write a blog page for a basic RPI setup.

Log

4/15/4014 - Purchased an 16 GB Ultra SDHC SanDisk memory card from the local RS for $16.41. Price does down every time I get one. Listed speed is up to 30 MB/s - we shall see..

MESH-PI (HSMM-PI)

I wasn't going to do this now but with the need for the old-house-cam and the potential that it would fit right in, that was all the excuse I needed. I think the final nudge was the easy of getting MRTG running on a RPI so I could track the mesh traffic like I've been tracking local 9600 Packet.

Goal: Get NW-MESH running on a RPI so I can access the old house cam from the web.

Here's the project home pages are at wordpress HSMM-PI and GITHUB HSMM-PI for discussion there is aGoogle + Community


TODO Next:

Reload PI SD card with last summers Image. Don't update it. Try installing version 2.0 of HSMM-PI with the update disabled. Theory has it that this will work with the boguss WIFI card.

Reload PI SD card with the latest RPI image. Update it. Fire up the AE2500 dual band dongle. Install version 3.0 of HSMM-PI.

TODO Someday:

Learned:

Had to make /root chmod 777 instead of the 440 it was set in the script - Yes I know, that's not secure. Fix it someday will I.

Issue 2

Edimax WIFI card won't work.


LOG:

3/27/2014 - Learned from Rusty that my RF WIFI was most likely at fault.

3/26 - postings on last nights efforts.

Rusty: Bill, despite there being 32 ASCII characters in the old HSMM-Mesh key file, '/etc/olsrd.key' (well, current one too), only the first 16-characters are read (or have ever been read)

Bill: I can confirm that only the first 16 characters are needed for the key. Didn't help with MESH on the RPI so I'm backing up and going to try a different radio (AE2500) with it.

Rusty: You weren't using an Edimax or one of the other 2-3 dozen of the RealTek RTL8192CU chipsets in it, were you? If so, and using one of the last two releases of Raspbian, I can assure you it won't work. The Secure Plugin key has nothing to do with it.

Bill: Bingo... Exactly as I discovered. "Dongle is Edimax EW-7811Un 150 Mbps Wireless 11n Nano" Will try the Cisco AE2500 tonight and order something supported later if that doesn't work.

Rusty: I went back to the Sept '12 release of Raspbian and disabled the 'apt-get upgrade' in HSMM-Pi's 'install.sh' script. Worked just fine with the Edimax.

Bill: Good idea - Thanks! I have a RPI install image from last July I could take for a test drive. Should work as long as I'm careful with the 'upgrade' calls. Would love to have this running for the MicroHams show on Saturday - specially if I can get SNMP/MRTG showing the network traffic like I do on 9600 packet.

Rusty: I do know that at least most anything with an Atheros chipset works with the latest Raspian. I'm currently using a TP-Link TL WN721N with the latest release. The 722 has a detachable antenna, I believe.
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