Teensy ® USB Development Board 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.

Teensy 4.1 has a voltage regulator which reduces the 5V VUSB / VIN power to 3.3V for use by the main processor and most other parts. Additional circuitry may be powered from the 3.3V pin. The recommended maximum for external 3.3V usage is 250mA. Teensy 4.1 is not meant to receive power on its 3.3V pin, but this can be done with special modificaton.

Teensy 4.0 has a voltage regulator which reduces the 5V VUSB / VIN power to 3.3V for use by the main processor and most other parts. Additional circuitry may be powered from the 3.3V pin. The recommended maximum for external 3.3V usage is 250mA. Teensy 4.0 is not meant to receive power on its 3.3V pin, but this can be done with special modificaton.

Teensyduino is a software add-on for the Arduino, to run sketches on the Teensy and Teensy++! Running Sketches on the Teensy Most programs written for Arduino work on Teensy.

To install Teensy on Arduino IDE 2.x, click File > Preferences (on MacOS, click Arduino IDE > Settings). On Windows 11 laptops a with small touchscreen display, you may need to scroll down to even if no scrollbar appears. In "Additional boards manager URLs", copy this link: https://www.pjrc.com/teensy/package_teensy_index.json

The first step is to plug your new Teensy in using the USB cable. Simply plug the Teensy board in to a USB port to get started. All brand new Teensy boards come with the LED blink program pre-loaded.

Teensy represents PJRC's ongoing commitment to developing more hardware powerful together with easy-to-use software support for microcontroller programming. Sales of Teensy fund substantial engineering work to develop and support open source software.

Jan 22, 2014 · Teensy 3.2 provides more power on its 3.3V pin, and accepts a wider voltage input range. If used within Teensy 3.1 limits, Teensy 3.2 and 3.1 are interchangeable. Both 3.2 and 3.1 are meant to be a drop-in replacement for Teensy 3.0.

Before installing software, you can simple plug Teensy 4.0 in to check if it is working. First plug Teensy into the solderless breadboard, so it has a sturdy base, then connect the USB cable. Every brand new Teensy is shipped with a LED blink program, so you should see the orange LED (upper right corner near the pushbutton) blinking slowly.

Teensy and related products from PJRC. See this table for comparison of all Teensy technical specs. 32-Bit Products and Accessories. Primary 32-bit Products: Teensy 4.1 – Teensy 4.1 with Pins – Extreme 600 MHz Speed, with USB Host, SD Card, Memory Expansion; Teensy 4.0 – Teensy 4.0 with Pins – Extreme 600 MHz Speed