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Freelance Technical Author, Illustrator & Photographer

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Home / Blog / Page 2

Repairing Corrupt System Files in Windows 10

** Updated 3rd Jan 2019 – To add extra DISM commands and recovery options. Windows includes a number of tools to get you out of a fix if your computer starts misbehaving. In this post, I’ll run through the repair[…]Click to read more..

Posted on 20th September 20183rd January 2019 by Mike Richards — Leave a comment

RTL-SDR Server as a service on Raspberry Pi

NB: Updated 21st Aug 2018: Changes to the rtlsdr.service file to add a start-up delay to ensure an IP address has been allocated before starting the server. NB: This post assumes that you have already installed the RTL-SDR server on[…]Click to read more..

Posted on 21st March 201821st August 2018 by Mike Richards — 9 Comments

Raspberry Pi – Running a program after the PIXEL desktop starts

Updated 21-4-2020 to correct typo. To automatically run a python program when the PIXEL loads, you need to add a command to the autostart file that can be found here: /etc/xdg/lxsession/LXDE-pi/autostart Here’s the process: Open the autostart file: sudo nano[…]Click to read more..

Posted on 16th March 201821st April 2020 by Mike Richards — 4 Comments

RSGB Convention 2017 – Pi in the Shack Slides

The link below will take you to a PDF copy of the slides that I used for my presentations at the 2017 RSGB Convention.   Pi in the Shack-Mike Richards RSGB 2017

Posted on 16th October 20177th February 2018 by Mike Richards — 3 Comments

Raspberry Pi Buster – GPS Dongle as a time source with Chrony & Timedatectl

The latest release of Raspbian Buster for the Pi has replaced the familiar NTP application with a lightweight solution using timedatectl. As a result, many of the online tutorials for adding  a GPS USB dongle are out of date. After[…]Click to read more..

Posted on 21st April 20186th February 2020 by Mike Richards — 39 Comments

Red Pitaya – Buyer Beware

My Red Pitaya failed recently after about 2 years of occasional use. It’s probably a 3.3V power regulator fault but the Red Pitaya team won’t supply component details and don’t have a repair option! So that’s £250 gone and not[…]Click to read more..

Posted on 17th March 201817th March 2018 by Mike Richards — 4 Comments

Raspberry Pi – Fixing a slow mouse

I recently changed my keyboard/mouse combo to a Perixx Periduo-712. When I restarted the Pi, I found that my mouse pointer had become very slow. A quick look around the Internet revealed a fix as follows: To speed-up the mouse,[…]Click to read more..

Posted on 15th February 201815th February 2018 by Mike Richards — 4 Comments

Packet Radio with the Raspberry Pi

Packet Radio TNC with the Raspberry Pi ** Updated 21-2-18 The Pi plus a USB soundcard is all you need to get started with Packet Radio. Instead of using a dedicated hardware TNC, the Pi can be coaxed to do[…]Click to read more..

Posted on 12th October 201721st February 2018 by Mike Richards — 2 Comments

PiFace on the Raspberry Pi – Problem Solved!

Introduction I recently wasted many hours trying to get the PiFace board to work with Python. I eventually discovered the root cause of the problem, so have documented it here, both for my own reference, and for anyone else who might[…]Click to read more..

Posted on 1st April 201816th April 2018 by Mike Richards — 14 Comments

Raspberry Pi – Running Spy Server as a service

Updated 8th March to clarify the requirement for Spy Server to be pre-installed. Updated 8th Aug 2018 to add a start-up delay to the rtlsdr.service file. This is to ensure that an IP address has been allocated before the Spy[…]Click to read more..

Posted on 16th March 20188th March 2019 by Mike Richards — 12 Comments

Airspy – Spy Server Scripts

I’ve had Spy Server working very successfully with the Pi 3 for a while now and have written a few time-saving scripts that others might find useful. These can be found in the attached zip file. Here’s a quick run[…]Click to read more..

Posted on 8th February 20188th February 2018 by Mike Richards — 2 Comments

Recover Damaged Mac HFS+ disk with Linux

A friend of mine recently set me a challenge to recover 2TB of photo files from a Mac external drive that had failed. Fortunately, it was the USB to SATA converter that failed, so I could extract the bare drive[…]Click to read more..

Posted on 30th August 201730th August 2017 by Mike Richards — 5 Comments

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All Pi cards updated for the new Pi-400 using the latest Raspberry Pi OS! Dismiss