Pyssel

Updated 2023-06-11 ! The use case is that I had an old iMac, max OS is High Sierra, that crashed and it didn't work with an Internet or Time Machine restore. The other MAC:s I have are running Catalina or Big Sur and if you try to download and older OS , via app-store, you just get an error saying that the running OS don't accept the download of an old OS. The universal way to create an USB installer seems to be using the command " createinstallmedia ", requires OS X 10.7 Lion or later, but you need the respective OS install app ! A new, better ??, without Python dependences is found here .

In former posts, Big Sur (11.7) and Monterey (12.7),   I went through how to update an old MacBook Air 4.2, (mid 2011, SSD, 4 Gb memory) which has a Non-Metal GPU. In this post I will update a MacBook Air 6.2 with SSD, Mid 2013,  to Ventura(13.5) with the same patcher  but the latest version 6.2 !!  This is despite that  max OS  for this Mac is  Big Sur Awesome !! ! Supported models are found here .

Since I'm not a programmer, and probably never will be 😉, I really like Node-Red(NR). NR is also a nice way trying to learn some JavaScript via the function nodes. I also appreciate hardware, MCU s, like ESP32 and Raspberry Pi Pico but find it a little hard to code in MicroPython or C++. Somewhere ?? on the WEB i found some applications that can export NR json code to C++ and run it on several MCUs. As you understand I had to check it out... 

Uppdated 2023-10-28 ! I have been running a Raspberry Pi 2(RPi) for several years with Buster and the applications; Homebridge(HB) Razberry , Z-way interface CUPS , printer software Node-RED (NR) When I started with the RPi it was Jessie, then Stretch and Buster. Every time I upgraded the SD card to the latest OS and it just worked. It should been said that I always waited a year or so and  I'm using the RPi headless without any GUI. Now it was time to go from Buster to Bullseye !

Updated 2023-03-12 ! When we upgraded our WiFi to a Mesh solution, TP-link Deco M9 , our old printer, WiFi connected, didn't want to "play" with us anymore. This was due to stronger encryption which wasn't supported. Since the printer just have WiFi or USB connection, no standard Ethernet, I was looking for another solution. We have no computer running 24/7 except a Raspberry Pi, RPi, which is handling our home automation, Homebridge . So the solution was to use CUPS  on that RPi. On the web there are several posts/manuals how to install CUPS on a RPi so this post will refer to one of these and then some additional hints regarding, Apple AirPrint, Windows Network Printer, scanning....

Uppdated 2023-02-01 ! The use case, creating an offline NTP , was that I'm on our boat sometimes don't have an Internet connection but always have a connected GPS. The GPS updates time on a  Raspberry(RPi)  running Signal K . The actual issue is that there are other devices on the LAN that needs to be updated and then you need an NTP server. Of course this setup is also valid for a RPi/server, with a RTC , acting as a NTP server in an isolated LAN.  

Updated 2023-02-23 ! Installing a Z-Wave controller on Raspberry Pi is much easier than You think. The only add on You need is the Razberry Z-wave Shield and free software from the same site.

Updated 2023-01-20 ! Our boat was delivered, 2006, with just Raymarine equipment using network Seatalk 1(ST1), and some NMEA0183(N1). Updates and additional equipment will use the newer NMEA2000(N2K).  We will keep the two well functioning Raymarine 12”, E120, and the radar.  In addition, for Navigation purposes, we use the iPad app iSailor . The easy way to combine ST1 with N2K is to use the Raymarine Seatalk 1 to Seatalk NG(STNG) converter, Raymarine E22158 . STNG and N2K is the same protocol, with some dialectal differences, but have different cabling. Don't miss  this post  where I'm presenting additional solutions, including a NMEA WiFi gateway, and add ons.

  Updated 2023-01-02 ! OpenPlotter(OP), a Boat Navigation application, is really a nice and simple installation of OpenPlotter (OP) OpenCPN (OC) SignalK (SK)  and other supporting applications for Your boat. Please note that OP V2 is outdated use .......