---
name: "teensy_loader_cli"
section: "1"
platform: "linux"
package: "teensy-loader-cli"
version: "2.2-1.1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/teensy_loader_cli"
---

# teensy\_loader\_cli(1)

load and run programs onto your Teensy micro controller

## NAME

teensy\_loader\_cli - load and run programs onto your Teensy micro controller

## SYNOPSIS

**teensy\_loader\_cli** --mcu *MCU* \[-w\] \[-r\] \[-s\] \[-n\] \[-b\] \[-v\] \[-h\] *file.hex*

## DESCRIPTION

The teensy loader cli is a command-line alternative to the graphical teensy loader which is included with Teensyduino. The cli version is preferred by advanced users who want to automate programming, typically from within a Makefile or similar.

## OPTIONS

- **--mcu**

  Specify which connected Teensy controller to work with (e.g. TEENSY36). To list supported MCUs, use:

  ```
  	teensy_loader_cli --list-mcus
  ```

- **-w**

  Wait for device to appear

- **-r**

  Use hard reboot if device not online.

  This option requires another Teensy to be connected, running the rebootor firmware.

- **-s**

  Use soft reboot if device not online (Teensy 3.x only)

- **-n**

  No reboot after programming

- **-b**

  Boot only, do not program

- **-v**

  Verbose output

## SEE ALSO

http://www.pjrc.com/teensy/loader\_cli.html

## AUTHOR

teensy\_loader\_cli was developed by Paul Stoffregen \<paul@pjrc.com\>

This manual page was written for the Debian project by Michael Stapelberg \<stapelberg@debian.org\> (but may be used by others).