danman's blog

Search
Skip to content
  • Contact

Monthly Archives: January 2018

Teardown

3D shutter glasses teardown

22. December 2020 danman Leave a comment

These are for DLP-Link projectors which can quickly strobe white frame between video frames for shutter signalling. You can read more about this technology here. They use specialized chip TPS65835 which integrates most of the needed functionality. Maybe I’ll try some hacking on this later.

3d glassesboarddissassemblydlp-linkteardown
Cheap 433Mhz receivers comparison
Projects

Cheap 433Mhz receivers comparison

22. January 2018 danman 1 Comment

I bought 2 cheap 433Mhz receiver modules from aliexpress for comparison. Continue reading Cheap 433Mhz receivers comparison →

433Mhzcomparisonoutputscopewireless
Old radio clock upgraded to NTP
Projects

Old radio clock upgraded to NTP

29. March 2018 danman 1 Comment

I own the radio clock on the title picture. I’ve used it for some time but it annoyed me because it drifted a lot (several seconds a day). It’s synchronized to power network frequency but it doesn’t work well in my case and I hate to adjust the clock over and over again. So I decided to sync it automatically using esp8266. Continue reading Old radio clock upgraded to NTP →

DIYesp8266IoTNodeMCUNTPradio clockupgrade
Openshift: exit code 137
Linux, Openshift

Openshift: exit code 137

7. January 2018 danman Leave a comment

If your pod exited with exit code 137 so you see something like this in pod Details page:

Last State  Terminated at Jan 7, 2018 5:00:15 PM with exit code 137 (Error)

your pod has been killed with signal 9. Continue reading Openshift: exit code 137 →

137exitoomopenshift
How to recover containerized etcd in Openshift cluster
Linux, Openshift

How to recover containerized etcd in Openshift cluster

7. January 2018 danman Leave a comment

If you tried to add node to your etcd cluster and it failed, your cluster may have lost quorum and will not start again. To recover it you need to create new cluster identity. This is a short howto. Continue reading How to recover containerized etcd in Openshift cluster →

dockeretcdopenshift

Most popular

  • New version of Lenkeng HDMI over IP extender – LKV373A (Update 6. sep 2019) 111.1k views
  • Bricking and unbricking Vontar X96 mini 88.6k views
  • Reverse engineering Lenkeng HDMI over IP extender 44.9k views
  • $2 USB crypto token for use with GPG and SSH 33.6k views
  • Playing with CAN bus 33.4k views
  • CH341A USB serial EEPROM reader under Linux 32.9k views
  • About adding a static route to my DOCSIS modem 28k views
  • Ender 3 as a laser cutter 26.4k views
  • Installing SNMP MIBs in Ubuntu 23.8k views
  • ESP32 NTP OLED clock 20.9k views

Recent Posts

  • My wireguard cheatsheet
  • Updating RNS315 maps for fun and profit
  • DIY WSON-8 socket
  • Fixing broken TP-Link TL-MR100
  • miniPCI-e dual USB card extender

Recent Comments

  • Nathan Rignall on New version of Lenkeng HDMI over IP extender – LKV373A (Update 6. sep 2019)
  • Claus on Playing with CAN bus
  • Joshua Lee on New version of Lenkeng HDMI over IP extender – LKV373A (Update 6. sep 2019)
  • danman on Updating RNS315 maps for fun and profit
  • Max on Updating RNS315 maps for fun and profit

Archives

  • January 2023
  • January 2021
  • December 2020
  • July 2020
  • May 2020
  • February 2020
  • September 2019
  • July 2019
  • June 2019
  • February 2019
  • January 2019
  • December 2018
  • October 2018
  • September 2018
  • August 2018
  • June 2018
  • May 2018
  • April 2018
  • March 2018
  • February 2018
  • January 2018
  • December 2017
  • November 2017
  • October 2017
  • September 2017
  • August 2017
  • July 2017
  • May 2017
  • April 2017
  • March 2017
  • February 2017
  • January 2017
  • December 2016
  • October 2016
  • June 2016
  • May 2016
  • April 2016
  • March 2016
  • February 2016
  • January 2016
  • December 2015
  • November 2015
  • June 2015
  • May 2015
  • November 2014
  • April 2014
  • March 2014
  • January 2014
  • August 2013
  • July 2013

Categories

  • Front page
  • Linux
  • Nezaradené
  • Openshift
  • Projects
  • Teardown
  • Travel

Meta

  • Log in
  • Entries feed
  • Comments feed
  • WordPress.org

Your IP address

34.239.173.144
Fourteenpress WordPress theme by noorsplugin | Proudly powered by WordPress