Pyssel

Updated 2023-12-05 !! OK, with Bookworm (32/64 bit) !! To optimize the reception with SDR:s, Software Defined Radios, it is important to receive on the proper frequency. Due to variations in production there could be deviations. The calibration could be done against standard GSM transmitters which are providing a stable reference frequency. Another way is found in the AIS-catcher application and use the information supplied in the graphs "Frequency Shift". 

Updated 2023-11-09 ! The AIS posts on this blog have been very popular so this post will be a follow up which will enable You to show AIS targets, including AtoN:s, on  OpenSeaMap , (OSM), together with buoys and beacons. The application showing the map is SignalK , (SK) a OpenSource project for marine use.  With the " ais-forwarder " plugin you could send/dispatch the NMEA AIS data to   Marinetraffic  or  Vesselfinder . Another   AIS-dispatcher . The best AIS application ? is found here !

Updated 2023-11-06 ! I have searched for a solution transmitting the NMEA data, from the navigation network, via WiFi, to for example  iSailor  or other Tablet/Phone applications. Most of these applications just accepts NMEA0183(N1) but many boats are also using SeaTalk 1(ST1) and NMEA2000(N2K). This post will cover, kept compact, my best findings covering both a DIY and a commercial approach to handle the different protocols.

Updated 2023-11-05 ! An introduction to the SignalK, Marine application, is given here . A very easy way to measure temperature with Raspberry Pi, RPi, is to connect one wire (1W) DS18B20  (DS)temperature sensors direkt to the RPi GPIO. Here You find a post where the temperatures are transfered via WiFi

Updated 2023-11-04,  OK with Bookworm 32 bit ! Not Bookworm 64 Bit ! This is a setup, on a Raspberry Pi(RPi), with a software package, AIS Dispatcher, from  http://www.aishub.net  which includes receiving and processing of all standard AIS messages streaming raw AIS feeds to multiple destinations advanced monitoring of device status, coverage and message statistics embedded electronic map with all received vessels The best AIS application ?  is found here  !

 Updated 2023-10-30 ! OK with Bookworm ! New simple install !  For a new project I needed a small wireless temperature sensor, there You don't have to change battery so often, and this gave the RuuviTag . Having used Node-Red(NR) on Raspberry Pi before, the first application was this dashboard.  Tested and works with with Node.js V18 !

Updated 2023-10-26 ! HomeBridge (HB) is the software where You make Your home automation devices appear in the Apple Home App as native products. In this post a Raspberry Pi  is used as the HB server. There has really been big improvements in the installation process and I think the HB version is better/easier than HOOBS . Migrate from HOOBS ?! Link

Updated 2023-10-17 ! To make a headless, without monitor, keyboard and mouse, install of Raspberry Pi OS on a Raspberry Pi(RPi) with built in WiFi and no LAN cable connection, please follow the instructions below. For example the RPi Zero and Raspberry Pi 3 Model A+ don't have any LAN cable port so the setup is quite usable. To make an active WiFi connection at first boot You have to use the "Advanced options" in Raspberry Pi Imager or create, old way, a configuration file called " wpa_supplicant.conf ".

Updated 2023-10-16 ! This post is the second post explaining the purpose with, and quick/simple install instructions for, OpenPlotter(OP) and some other applications that can be installed with OP.   The first post is found here and in this post we will proceed with the install of OpenCPN(OC). OpenCPN Install In OP:s " Application   Meny => Other =>  Settings" app,   mark "OpenCPN Installer"   and click on "Install", at  the upper right.