Teensy 2.0, LC, 3.x, 4.x core libraries for Arduino. The latest stable version of Teensy's core library is always available in the Teensyduino installer, at this page:What are the pins on Teensy 3.6 pjrc?
Pins A10 & A11 have a differential amplifier. These comparators allow an analog signal to be converted to digital, with a precisely defined voltage threshold for logic low versus high. Two true analog output DACs are present on pins A21 & A22. These may be used with analogWrite, or the Audio library.What do you need to know about the teensy?
The Teensy is a complete USB-based microcontroller development system, in a very small footprint, capable of implementing many types of projects. All programming is done via the USB port. Update: Discussion / Support ForumWhich is cross platform development environment does Teensy use?
PlatformIO IDE is a cross platform development environment with many advanced features. Windows, Linux and Macintosh are supported. Makefiles for non-graphical use are provided with the Teensyduino installer. The FPU performs 32 bit float math in hardware, at approximately the same speed as integer math.