Teensy 4.1¶

Hardware¶

Platform Teensy: 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. No special programmer is needed, only a standard USB cable and a PC or Macintosh with a USB port.

Configuration¶

Please use teensy41 ID for board option in “platformio.ini” (Project Configuration File):

[env:teensy41]
platform = teensy
board = teensy41

You can override default Teensy 4.1 settings per build environment using board_*** option, where *** is a JSON object path from board manifest teensy41.json. For example, board_build.mcu, board_build.f_cpu, etc.

[env:teensy41]
platform = teensy
board = teensy41

; change microcontroller
board_build.mcu = imxrt1062

; change MCU frequency
board_build.f_cpu = 600000000L

Uploading¶

Teensy 4.1 supports the next uploading protocols:

• jlink

• teensy-gui

Default protocol is teensy-gui

You can change upload protocol using upload_protocol option:

[env:teensy41]
platform = teensy
board = teensy41

upload_protocol = teensy-gui

Debugging¶

Debugging - “1-click” solution for debugging with a zero configuration.

You can switch between debugging Tools & Debug Probes using debug_tool option in “platformio.ini” (Project Configuration File).

Teensy 4.1 does not have on-board debug probe and IS NOT READY for debugging. You will need to use/buy one of external probe listed below.

Frameworks¶