Python script for “Arduino compatible” geiger counter on Raspberry Pi – outputs to Collectd format https://github.com/somesortoferror/geiger-counter Run with Collectd “exec” plugin Requires RPi.GPIO: sudo apt-get install python-rpi.gpio Connect interrupt pin of Geiger counter to GPIO12 of RPi (configurable in script) May need to run as root if /dev/gpiomem not available Used with a Collectd frontend … [Read more…]
In this post you’ll find my windows builds of rtl_sdr. The first link is the main branch and this is probably what most people will want. The other links are for keenerd‘s experimental branch of rtl-sdr with additional features and the mutability branch – allows direct sampling without a hardware mod – “very experimental – … [Read more…]
Kalibrate-rtl is a program that can scan for GSM base stations and use them to calculate the local oscillator frequency offset (ppm error) of an RTL2832 USB dongle. I finally got this to build after a lot of trial and error with MSYS/MinGW. As often, not that complicated, just a case of building the libraries … [Read more…]
rtl_433 (https://github.com/merbanan/rtl_433) is a program that allows you to use an RTL2832 based USB DVB device as a generic receiver for 433 MHz devices (temperature sensors, weather stations etc). Here you will find my unofficial Windows 32/64 bit builds compiled using MinGW. For my librtlsdr builds go here. UPDATE 13/04/2016 – fixes a problem with … [Read more…]
I like monitoring/graphing data, so I picked up this $10 TEMPer v1 USB thermometer from China for a DIY weather station. It is currently measuring the temperature outside my window. The device is detected out of the box in Ubuntu Linux: [89921.774619] input: RDing TEMPer1V1.4 as /devices/pci0000:00/0000:00:12.2/usb1/1-1/1-1.1/1-1.1:1.0/input/input18 [89921.775505] hid-generic 0003:0C45:7401.0009: input,hidraw0: USB HID v1.10 Keyboard … [Read more…]
Occasionally it may be necessary to install a package manually on Gargoyle/OpenWrt firmwares due to bugs or incompatibilities preventing automatic installation. Here’s how to do it.
After switching my NAS box to Ubuntu Server I decided I wanted a way of monitoring the system remotely from a browser. Previously I had used MRTG but being short on time wanted something more “plug and play”. The box only has 512MB memory so resource usage is important. The solution I chose is a … [Read more…]