teensy ☆

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Description:
Firmware flashing utility

Type: Cask | Latest Version: 1.59-beta3@0 | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Developer tools

Tags: teensy microcontroller firmware embedded development flashing

Install: brew install --cask teensy

About:
Teensy is the official firmware flashing and configuration utility for PJRC's Teensy microcontroller development boards. It provides a streamlined graphical interface for compiling and uploading code, supporting both Arduino IDE integration and standalone operation. The tool is essential for programming and managing the unique capabilities of the Teensy's ARM-based processors.

Key Features:

One-click firmware compilation and flashing
Support for both Arduino and raw C/C++ code
USB-based bootloader with automatic device detection
Low-level device configuration and programming

Use Cases:

Developing and deploying custom firmware for DIY electronics projects
Rapid prototyping with microcontroller hardware
Updating bootloader and firmware on Teensy boards

Alternatives:

Arduino IDE – More general-purpose but lacks Teensy's specialized bootloader and hardware support
PlatformIO – Advanced alternative with broader ecosystem support but steeper learning curve

Version History

Detected	Version	Rev	Change	Commit