PW Data Modes ESP8266 Correction

  PW Data Modes Fig 6 Corrected I made a mistake in the diagram pin numbering showing the serial connection to the Olimex ESP8266-DEV board. The ground should connect to pin 2 as shown using the numbering in the revised Fig.6. Apologies for the error,   Mike  

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Arduino Code for 0-500MHz, 1nW to 100W RF Power Meter

Here is the code for the Arduino in-line power meter that will feature in my Data Modes column in the August PW. Copy and paste the code below into your Arduino IDE: ————————————————————————————————————————– /* This sketch uses the Adafruit i2c/SPI LCD backpack and shares some code from Adafruit ( http://www.ladyada.net/products/i2cspilcdbackpack/index.html ) Sketch produced by Mike […]

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MotionPie Links

It seems the shortened MotionPie links I provided in my RadCom article are not working. I don’t know the cause of the problem yet but I’ve posted the full links below: MotionPie Download https://github.com/ccrisan/motionPie/releases SDcard Formatter https://www.sdcard.org/downloads/formatter_4/ Win32DiskImager http://sourceforge.net/projects/win32diskimager/ Sorry  for any inconvenience. Mike

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Raspberry Pi USB Sound

The Pi comes configured to use the on-board sound system by default. This a problem for those that want to use the higher quality or stereo in and out available from an external USB soundcard. The solution is to change the configuration so that a USB soundcard becomes the default sound system, when present. Here’s a […]

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motionPie Server Available

I’ve just completed a brand new SD card image that contains the motionPie software, operating system and comes with 5-pages of printed instructions. motionPie can handle the Pi camera, USB or network webcams and is a great way to set up a home security surveillance system or maybe keep an eye on outbuildings. As the name suggests […]

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Raspberry Pi – Auto-Start rtl-sdr Server

  Raspberry Pi Tips Auto-Starting rtl_tcp during boot To avoid having to use ssh to access the Pi and start the rtl_tcp stream, we can hook into the rc.local script to automatically start the server if an IP address is available and the dongle is connected. The rc.local service is used to run commands at boot […]

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RTL-SDR Segmentation Error Solved

Solving the rtl-sdr Segmentation Error on Raspbian (16-2-2015) The problem appears to be caused by the 11.1 version of libusb-1.0 that is used for the current Raspbian build. Upgrading to the latest version, 19.1, solves the problem. The following procedure upgrades libusb-1.0 to the 19.1 release. 1 – First step is to add the Raspbian […]

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Airspy – New Generation SDR Receiver

I’ve just completed reviewing the new Airspy SDR receiver and can tell you that it’s a very good little receiver that I’m sure will prove very popular. You can see full details in the next Radio User magazine. Coverage is 24MHz to 1800MHz with no gaps and a 10MHz tuning bandwidth. The Airspy also uses a […]

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