Author Archive

Raspberry Pi IR Receiver

Sunday, May 31st, 2020

How to configure a Raspberry Pi to receive IR input from a remote control using the new kernel drivers, ir-keytable & ir-ctl, rather then LIRC. Then using that input to run a script to reboot the device.

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JPA JsonNode MySQL JSON Converter

Thursday, May 7th, 2020

How to implement a Spring Boot domain object / JPA entity that handles Stripe event webhook callback, using a custom @Convert to save to a MySQL database as a json type column.

(That should cover the buzzwords, Google bait and scare off anyone who doesn’t care.)

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Raspberry Pi Switch Chromium Browser Tabs

Tuesday, July 23rd, 2019

Switch browser tabs without browser extensions or plugins, using xdotool and crontab.

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Stupid Remote v4: TV remote control Web App

Wednesday, June 20th, 2018

Stupid Remote is a web app that controls devices over HDMI CEC and infrared: turning tvs on and off, switching inputs adjusting volume. Customization requires editing simple HTML and JavaScript and uses cec-client and lircd for control.

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3D Printing The first few weeks

Friday, April 20th, 2018

In February I finally got a Prusa i3 Mk3 3D printer that was ordered in December, a very late Xmas gift. I had struggled with a MakerBot Replicator previously, but based on my research, I had high hopes for the Mk3.

This is the story of the first few weeks of 3D printing and what I learned.

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Filebeat on OpenBSD 6.2

Sunday, March 25th, 2018

How to install Filebeat on OpenBSD 6.2, including setup and configuration.

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OpenBSD 6.2 VPN Endpoint for iOS and macOS

Sunday, February 25th, 2018

The following instructions describe how to remotely connect to a network over an IPsec / L2TP VPN through an OpenBSD server, using native clients on macOS and iOS.

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Raspberry Pi Full Screen Browser (Raspbian December 2017)

Sunday, December 10th, 2017

Steps to setup a Raspberry Pi running Raspbian to boot into a full screen web browser, hiding mouse pointer, disabling screen saver. Includes installing additional fonts and putting the browser in kiosk mode.

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Linux Infrared Control Part 4: Trigger Apps via IR

Monday, December 4th, 2017

Would you like to use a remote control to control your computer? How about using your computer to send remote control signals to your TV or Stereo instead of using the remote?

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Linux Infrared Control Part 3: Final Hardware

Monday, November 13th, 2017

Would you like to use a remote control to control your computer? How about using your computer to send remote control signals to your TV or Stereo instead of using the remote?

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