IP Address in Excel

=TEXT(LEFT(A2,FIND(".",A2,1)-1),"000") & "." & TEXT(MID(A2,FIND( ".",A2,1)+1,FIND(".",A2,FIND(".",A2,1)+1)-FIND(".",A2,1)-1),"000") & "." & TEXT(MID(A2,FIND(".",A2,FIND(".",A2,1)+1)+1,FIND(".",A2, FIND(".",A2,FIND(".",A2,1)+1)+1)-FIND(".",A2,FIND(".",A2,1)+1)-1), "000") & "." & TEXT(RIGHT(A2,LEN(A2)-FIND(".",A2,FIND(".",A2,FIND( ".",A2,1)+1)+1)),"000")

RC Project (Sender: Joystick Receiver: Motor, Servo, LED)

Motor Driver

  • MX1508
  • TB6612
  • BTS7960


  • DC Motor 775 12V-24V 0.32A 15’000RPM, Link
  • DC Motor RS-380SH-4528 7.4VDC (5V-9V) 0.9A, Link
  • DC Motor FC-130SA A 3V-6V 0.230A 20’000RPMLink
  • DC Motor FC-130SA B 3V-7.4V 0.220A 21’500RPMLink
  • DC Motor FC-130SA C 1.5V-3.7V 0.370A 23’500RPM, Link

Motor HowTo
Conrad: Elektromotoren » Aufbau, Funktionsweise und Arten einfach erklärt

Power Supply

Other Projects

tdwXMTR1: A RC controller for Drones (and other things)
Wireless Arduino Motor Driver and Joystick Controller (nRF24L01 and L293D)

Remote Work

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1. Remote Woman.

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-30,000+ full remote tech jobs vetted by top companies.

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– 2987 remote jobs, matched to your skills, with companies prioritizing diversity & inclusion.

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– Premier AI job board featuring full-time remote positions with the top 1% of AI companies.

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Java and OpenJDK are trademarks or registered trademarks of Oracle

Java OpenJDK Kinds of Compatibility

Differences Between Oracle JDK and OpenJDK

Release Schedule

  • Oracle will deliver releases every three years
  • OpenJDK will be released every six months


  • Oracle JDK was licensed under the Oracle Binary Code License Agreement
  • OpenJDK has the GNU General Public License (GNU GPL) version 2 with a linking exception


  • Oracle’s is much better regarding responsiveness and JVM performance
  • It puts more focus on stability


Oracle product has

  • Flight Recorder
  • Java Mission Control
  • Application Class-Data Sharing features
  • Garbage Collection options
  • Better renderers

Development and Popularity

  • Oracle JDK is fully developed by the Oracle Corporation
  • OpenJDK is developed by Oracle, OpenJDK, and the Java Community. However, top-notch companies like Red Hat, Azul Systems, IBM, Apple Inc., and SAP AG also take an active part in its development.


Free and Open Source

  • AdoptOpenJDK
  • Amazon Corretto
  • Azul Zulu
  • Bck2Brwsr
  • Codename One
  • DoppioJVM
  • Eclipse OpenJ9
  • GraalVM CE
  • HaikuVM
  • HotSpot
  • Jamiga
  • JamVM
  • Jelatine JVM
  • Jikes RVM (Jikes Research Virtual Machine)
  • JVM.go
  • Liberica JDK
  • leJOS
  • Maxine
  • Multi-OS Engine
  • RopeVM
  • uJVM


  • Azul Zing JVM
  • CEE-J
  • Excelsior JET
  • GraalVM EE
  • Imsys AB
  • JamaicaVM (aicas)
  • JBlend (Aplix)
  • MicroJvm (IS2T – Industrial Smart Software Technology)
  • OJVM
  • PTC Perc
  • Waratek CloudVM for Java

Adoptium / AdoptOpenJDK / Eclipse Temurin

Adoptium Frequently Asked Questions

OpenJ9 / Semeru

IBM Semeru Runtimes

Java Compatibility Kit (JCK) / TCK for Java SE

  • OpenJDK Community TCK License Agreement (OCTLA)

Oracle Accessibility Conformance Report
Gaining Access to the JCK


Gravitrax Junior

Ravensburger GraviTrax Junior


GraviTrax Junior Extension Trax
GraviTrax Extension Adapter-Set


Gravitrax Junior Extension Trax
Gravitrax Junior Element Trap
Ravensburger GraviTrax Extension adapter set


Sind GraviTrax-Junior-Produkte mit dem restlichen GraviTrax-Universum (CORE, PRO und POWER) kompatibel?

Das Kugelbahnsystem von GraviTrax Junior ist so konzipiert, dass schon Dreijährige selbstständig bauen und spielen können. Aus diesem Grund sind die Kugeln und Bauteile des Junior Systems größer und daher nicht mit dem GraviTrax-System für Kinder ab 8 Jahren kompatibel. Mit dem Adapter-Set lassen sich Bahnen der beiden Kugelbahnsysteme miteinander verbinden.

Gravitrax Core

Gravitrax Pro

Gravitrax Power