Arduino IDE - Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware...

Google Docs - Create a new document and edit with others at the same time -- from your computer, phone or tablet. Get stuff done with or without an internet connection. Use Docs to edit Word files. Free from Google.

PlatformIO - Next-generation IDE for IoT

Adobe Acrobat DC - Make your job easier with Adobe Acrobat DC, the trusted PDF creator. Use Acrobat to convert, edit and sign PDF files at your desk or on the go.

embedXcode - embedXcode is a template for Xcode.

Wondershare PDFelement - All-in-one PDF editor