Getting Started with Golang

Go Applications A Go app can vary from 3 to millions of lines of code. They should also be written with one or multiple files with the extension .go You can use any text editor to write a Go program like nano, but our favorite and most supported is Visual Studio Code. Setting up a Go Environment For all of our tutorials we will be using VSCode to help us ease into the language. [Read More]

Ultra minimal Raspbian Image for Pi Zero and Zero W

I wanted to make a ultra lite image that I can quickly drop Go programs onto. This image had a few requirements, be under 300MB, have less than 20MB ram usage idle, startup in under 5 seconds. I will post below everything I did to strip this down so that it can be replicated in the future. Currently with the steps below I have achieved 427MB/16MB, close to my goal for disk and memory usage is below the goal. As for bootup time, I am limited by network connection time 5+ seconds.

Install a fresh Raspbian Stretch Lite image into the SD card (source).

Configure headless SSH and Wi-Fi (if necessary) before starting the SD card (source).

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Raspberry Pi Booting From USB on older models

Booting from USB is easy on a Pi1, Pi2, or Pi3. This can be useful in mamy cases to speed up the performance of your pi when using a slow sd card. It can also provide a reliable location where you operating system data resides. Sd cards are prone to data corruption from writes a operating system ussually does.   Write the latest Raspbian image to an SD card and boot it. [Read More]

Hobbyist 3d printer roundup of 2019

When we first entered 3d printing we started off quickly printing many and many objects. Slowly our printer started to die down once the printer began acting up. Our current printer the Robox rbx1 became the most pain in the ass printer we saw online. Everything was due to the proprietary software and the lack of 3rd party parts.

We started to try and simplify remote access by using Teamviewer and even went as far as to buy a CEL Root SD card. The CEL Root was even worse than our current methods. This is when we finally had it. We wanted an open source printer with a decent bed, 3rd party parts, and Octoprint support.

Together me and my team came up with the list of hobby printers under $2000. We’ll get a decent filament printer now and a small resin printer later.

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Cleaning up duplicates on NAS

Over the last year me and my wife have been using the network server more frequently from its initial install and setup. We share 3-4 computers across the house and constantly move files onto the NAS. I have installed Nextcloud which I will detail in another post in the future. We have come across an issue that I have noticed with the network share. We moved all of our images and files over and ended up with tons of duplicates and a giant mess. I will show you what I am doing to clean that up. Our Nas is running on a ubuntu server. The following commands should work on most linux NAS servers.

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Home Server Setup.

Today I will talk about my server setup by request. I setup my server originally for Security cameras because I was tired of proprietary software that every different camera has. My setup right now includes 4 entirely different types of cameras. None of them officially support ONVIF. Every one of my cameras was free so quality was not something I cared for. Today, my server now has my Windows File share (Samba), offsite Sync, Software Raid, Crontab Network Speed monitoring and zoneminder.

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Axis 2130 PTZ and Zoneminder

Axis 2130 PTZ and Zoneminder

Details:

This camera is very dated, also using a proprietary power adapter, no WiFi and very difficult to setup. Once you are on my network you have full viewing access to my camera. My router fortunately has network isolation so I am able to block access to it except via my server that has zoneminder nvr software installed. Unfortunately you will not be able to control the ptz from Zoneminder directly due to the age of the camera. But you can however give it a fixed position in the web panel it has built in. I would recommend setting its default fixed position after a reboot or power loss.

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Speed Test internal WiFi

Many have heard the term speed test, the first thing that comes to mind is speedtest.net or google’s speed test tool. Many don’t know that speed on your internal network also affects you. When testing internet speed your device sends data to router then out to the internet, what if your router is the issue. Even worse, your device. I will show u a very handy utility I use to make sure everything in my house runs great. Its called iPerf.

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