Tag: Tutorial
-
Mosquitto in Kubernetes the simple way
Eclipse Mosquitto is probably the most popular MQTT broker for IoT devices. Small, fast, reliable. But for unknown reason, a lot of tutorials on how to run Mosquitto in Kubernetes. They are either overcomplicated or happily ignore some aspects like load balancer or not that straight forward password generation. This is why, without further ado,…
-
How to prepare a new node on a Ceph cluster
In this article we will concentrate on Microceph implementation of the Ceph storage platform Adding a new node to the Microceph cluster is a relatively simple task I already described in a separate article. But, there are a few extra steps that you can take to just make it better. Drives and OSD Ceph OSD…
-
How to put drives to sleep in OpenMediaVault?
By default, OpenMediaVault NAS software will prioritize performance over power consumption and noise levels of disk drives. It makes sense when running heavily loaded NAS, but for home usage it’s an overkill. If my NAS is used only a few times a day, it makes no sense to keep HDDs spinning all the time. Luckily,…
-
How to update the Raspberry Pi bootloader firmware
Raspberry Pi needs a special software to work. Yes, operating system in important, but bootloader firmware is even more important. Without it, RPi would not be able to boot or support external devices. From time to time, it’s worth to update the bootloader firmware to get new functions and fix bugs. This article is a…
-
How to record good audio for YouTube
Recording good audio with cheap microphone is not a trivial task. Here are some tips on how to improve quality of you audio recording on a cheap. The first 3 tips are 100% free. For the bonus one, you might have to buy some pillows and a rug. But the most important advice is just…
-
How to normailize audio for YouTube with DaVinci Resolve
Audio mastering/normalization is very important. If your audio levels are too low, viewers will not hear well. If they are too high, clipping and distortions will lower the quality. On top of that, platforms like YouTube expects you to upload materials with certain loudness. If your loudness is too high, YouTube will lower your videos…
-
How to replace the 3d printer nozzle – Prusa i3 MK3S
The Prusa i3 nozzle is of good quality. If you treat it well, it will serve you for years. My Prusa i3 MK3S was printing without absolutely any problems for more than two years. Unfortunately, some of the failed filament experiments left too much fowling in the nozzle and although it was printing fine most…
-
INAV for tracked rovers and tanks
INAV 2.5 introduced rover and boat support. However, INAV setup on tracked vehicles like tanks or with differential steering was never really working like expected. Turning was possible but only in forward or backward movement – throttle had to be not-idle. And that meant that turning in place was not an option. Luckily, the INAV…
-
EmuFlight Kalman Filter Tuning
The most distinctive feature of the EmuFlight flight controller software is it’s gyro Kalman filter. Yes, the same filter that some people name the dynamic PT1, doubt that it works or calls it magic. I will not discuss if the EmuFlight Kalman works and how it works (it works tho, I have enough time in…