Raspberry Pi GPIO and Sensors 
Tuesday, October 22, 2013, 07:14 AM
Posted by Administrator
My website now details some of the sensors that I have connected to the GPIO ports of my Raspberry Pi.

http://rocode.com/sensors/

This includes:
- Reed Switch
- PIR Module
- Pressure Mat

Elvin notifications are emitted around my LAN to subscribed desktops and LED displays.
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SDR# and the EZCap DVB-T tuner 
Friday, August 16, 2013, 03:25 AM
Posted by Administrator
Using SDR# and RTL-SDR I am now able to remotely scan signals on my living room TV antenna.

http://www.rocode.com/sdrsharp/

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Update Monitoring VK3RTV with a LED Display  
Saturday, August 10, 2013, 06:05 AM
Posted by Administrator
I have updated my page with details of my new LED Display and how I have connected it to my Elvin router.

http://www.rocode.com/amateurradio/VK3RTVLedDisplay.html

I created an Elvin producer and consumer for the LED Display and have now added synthesized announcements when monitoring VK3RTV.

A curfew is enforced between 10pm and 8am with regards to audio announcements.
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Monitoring VK3RTV with a LED Display 
Thursday, June 20, 2013, 07:28 AM
Posted by Administrator
I have added a page with details of my new LED Display and how I have connected it to my Elvin router.

http://www.rocode.com/amateurradio/VK3RTVLedDisplay.html

I created an Elvin producer and consumer for the LED Display and connected it to my Temperature and VK3RTV Monitoring scripts.


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Elvin Producer - Updated Temperature 
Tuesday, February 26, 2013, 10:24 AM
Posted by Administrator
I have updated the /usr/local/bin/weatherchecker.sh script to remove a hardware error.

The original blog posting may be found via
http://www.rocode.com/blog/index.php?entry=Elvin-Producer---Temperature

The 1-wire temperature sensor is intermittently giving a false temperature of 85 degrees Celsius.


#!/bin/bash

TEMPERATURE=85

while [ "85" == "${TEMPERATURE:0:2}" ];
do
TEMPERATURE=`awk '{printf "%2.1f", $1}' /1-wire/28.92EEC4030000/temperature`

case "$TEMPERATURE" in
"")
READOUT="Not Available";;
*)
CELSIUS="°C"
READOUT=$TEMPERATURE$CELSIUS;;
esac

sleep 1

done

TIMENOW=`date +%d\ %T`
MSG="$TIMENOW $READOUT"
HOSTNAME="Lounge"

/usr/local/sbin/tick elvin://192.168.1.1 Sensors "$HOSTNAME" "$MSG" 10 > /dev/null


Now the producer waits for the 85 to clear and then emits an actual reading.
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