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.
I bought 2 cheap 433Mhz receiver modules from aliexpress for comparison. Continue reading Cheap 433Mhz receivers comparison
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
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
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
I wanted to try reflow soldering in kitchen owen. I had two boards – one with working ESP12 module (left) and one with working base board (right):
Together with some good guys we added support for Kimax U25AWF-H1 WiFi HDD case to LEDE. You can see my pull request here and commit here. This firmware also works on my Blueendless U-35WF. If you have this hardware you can try it. Finally, here are some photos of my devices guts.
If you need to periodically run some job in OpenShift you have several options. Continue reading Cron jobs in OpenShift