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If you searched for Teensy microcontroller boards, the main options here are:
- Teensy 4.0 — 600 MHz ARM Cortex‑M7, compact footprint ($36.05)
- Teensy 4.1 — 600 MHz Cortex‑M7 with a larger board/expandability (headers/expansion ecosystem) ($56.95)
- Teensy 3.5 — 120 MHz ARM Cortex‑M4, a solid older-gen option ($57.40)
Production / copy-protection variants
- Teensy 4.0 Lockable Development Board — 600 MHz with lockable/code security focus ($40.95)
- Teensy 4.1 Lockable Microcontroller Board — 600 MHz with lockable/code security focus ($54.20)
Popular add-ons & adapters (if you already have a Teensy)
- SparkFun Qwiic Shield for Teensy — adds 4x Qwiic (I²C) connectors for fast sensor hookups ($8.60)
- SparkFun Qwiic Shield for Teensy - Extended — extended fit for Teensy 4.1/3.6/3.5, 4x Qwiic ports ($9.90)
- Teensy to Arduino R3 Shield Adapter — use Arduino R3 shields with a Teensy ($28.60)
- OctoWS2811 Adapter for Teensy 3.x & 4.x — built for driving large WS2811/WS2812/NeoPixel LED installs ($17.20)
- Teensy Audio Adapter Board (Rev D) — add 16-bit / 44.1 kHz audio features to Teensy audio projects ($17.70)
- USB Host Cable for Teensy 4.1 and 3.6 — adapts the USB host header to a USB-A female port ($4.95)
Ethernet (Teensy 4.1)
- Ethernet Kit for Teensy 4.1 — add wired Ethernet hardware for Teensy 4.1 ($7.15)
- Ethernet Adapter for Teensy 4.1 — single-board Ethernet add-on approach for Teensy 4.1 ($9.75)
Teensy in the MicroMod ecosystem
- SparkFun MicroMod Teensy Processor — Teensy-class iMXRT1062 on MicroMod (M.2) connector ($53.85)
- SparkFun MicroMod Teensy Processor with Copy Protection — MicroMod Teensy with copy protection ($64.75)
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Showing 1-20 of 78 products
2x3-pin 2mm PTH Header Pins and Socket for Teensy 4.1 Ethernet
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This header pin and socket set is intended for connecting the Ethernet pins on a Teensy 4.1 to a custom circuit board.The socket is designed to be soldered to the bottom side of the Teensy 4.1, making it useful when you need a neat board-to-board connection for a custom PCB design.Specifications:...
Teensy to Arduino R3 Shield Adapter
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This passive adapter lets a Teensy development board connect to the standard Arduino 1.0 (R3) shield footprint, making it easier to reuse existing Arduino shields without a breadboard full of jumper wires.Solder your Teensy board, sold separately, to the marked footprint on the adapter, then plug...
OctoWS2811 Adapter for Teensy 3.x & 4.x
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Build large LED displays with a Teensy using this OctoWS2811 adapter board. It connects Teensy 3.2 through 4.1 boards to thousands of WS2811, WS2812 or NeoPixel-compatible LEDs, with support for driving up to eight strips in parallel via the high-speed OctoWS2811 Library.The adapter acts as an ac...
Teensy Audio Tutorial Extra Parts Kit
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This kit gathers the small supporting parts needed to complete projects from the official Teensy Audio Tutorial. It is intended for makers who already have a Teensy board and the main audio adapter, but still need the specific buttons, potentiometers and connectors used in the tutorial builds.Ins...
Teensy PT8211 Audio Kit
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Add 16-bit stereo audio output to a Teensy project with this DIY audio adapter kit built around the PT8211 digital-to-analogue converter (DAC). It is designed as a clean, high-fidelity sound source for audio-based builds using the Teensy Audio Library.The adapter provides a true stereo, line-leve...
USB Host Cable for Teensy 4.1 and 3.6
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This adapter cable lets a Teensy 4.1 or Teensy 3.6 use its USB host capability by converting the dedicated 5-pin USB host header connection into a standard female USB Type-A port.Once fitted, your Teensy can act as a USB host for peripherals such as keyboards, mice, MIDI controllers and USB hubs,...
Teensy 4.0 Lockable Development Board
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This lockable Teensy 4.0 is a compact, very fast development board built around the NXP MIMXRT1062DVL6B ARM Cortex-M7 microcontroller. It runs at 600 MHz and keeps the familiar Teensy footprint and breadboard-friendly layout, making it suitable for demanding embedded, audio, control and connected...
Teensy 4.1 Lockable Microcontroller Board
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This lockable Teensy 4.1 is aimed at advanced developers moving from prototype to a secure production design. It keeps the high-performance 600 MHz ARM Cortex-M7 platform of the Teensy 4.1 while adding write access to the chip’s eFuses so your final application can be encrypted and locked to the ...
Teensy 4.1 Lockable Without Ethernet
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This lockable Teensy 4.1 variant combines the high-performance Teensy 4.1 platform with production-focused code security, while omitting the Ethernet PHY for projects that do not need wired networking. It is built around the NXP MIMXRT1062DVJ6B ARM Cortex-M7 processor running at 600 MHz, with 8 M...
Ethernet Adapter for Teensy 4.1
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This adapter makes it straightforward to add a wired Ethernet connection to a Teensy 4.1. It brings the functionality of the Ethernet Kit for Teensy 4.1 onto a single board, helping you get a network-capable setup together with less assembly.The tricky parts are already taken care of, with the RJ...
8MB PSRAM Chip for Teensy 4.1
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Add extra RAM to a Teensy 4.1 with this 8 Megabyte PSRAM chip. It is intended for projects that need more working memory than the onboard RAM can provide.The chip is soldered to the smaller pads on the bottom side of the Teensy 4.1, underneath the SD card socket, between pins 31-32 and 33-34. Do ...
SmartMatrix SD Shield v3 - for Teensy 3.2
The SmartLED Shield (V4) provides a simple, solder-free way to connect a Teensy 3.2, Teensy 3.5, or Teensy 3.6 to HUB75 RGB LED Matrix Panels. Just plug in your Teensy, connect your panel, and start displaying graphics, patterns, or animated GIFs using the SmartMatrix Library. The shield include...
Teensy 4.0
Teensy 4.0: High Performance in a Compact Form The Teensy 4.0 is a powerful, compact development board measuring just 1.4" × 0.7". It features the blazing-fast 600 MHz ARM Cortex-M7 processor, built on the NXP iMXRT1062 chip — currently the fastest microcontroller available. Maintaining the same ...
SparkFun Qwiic Shield for Teensy
The SparkFun Qwiic Shield for Teensy adds four Qwiic (I2C) connectors to your Teensy board, providing quick access to the SparkFun Qwiic ecosystem of sensors, actuators, and displays. Sized to fit the Teensy 4.0, Teensy 3.2, and Teensy LC footprints. The shield connects GND, 3.3V, SDA, and SCL f...
SparkFun Qwiic Shield for Teensy - Extended
An extended Qwiic shield that adds four Qwiic connectors to Teensy 4.1, Teensy 3.6, and Teensy 3.5 boards. Connects the I²C bus (GND, 3.3 V, SDA, SCL) to two horizontal and two vertical Qwiic ports for easy daisy-chaining of I²C sensors and actuators. Includes a PROG button that mirrors the Teen...
8MB PSRAM chip for Teensy 4.1
This 8 MB PSRAM (pseudo-static RAM) chip adds extra memory to the Teensy 4.1 microcontroller board. Solder it to the smaller pads on the bottom side of the Teensy 4.1, underneath the SD card socket, between pins 31–32 and 33–34. A second PSRAM chip can be added for a total of 16 MB. In Arduino, ...
Ethernet Kit for Teensy 4.1
The Teensy 4.1 is one of the most advanced and reliable development platforms on the market today. One of the biggest asks for the board is the ability to connect the 4.1 to the Internet via Ethernet. Luckily, with all the parts included in this kit (as well as a little bit of soldering), you'...
SparkFun MicroMod Teensy Processor
The SparkFun MicroMod Teensy Processor leverages the awesome computing power of the NXP iMXRT1062 chip and pairs it with the M.2 MicroMod connector to allow you to plug it into your choice of compatible MicroMod Carrier Board. With the M.2 MicroMod connector, connecting your Teensy Processor i...
Teensy Header Kit
These headers are made to work with the Teensy 3.2 and Teensy LC development boards. Each kit of headers makes your Teensy breadboard compatible and will allow for stacking a Teensy and Teensy-compatible shield board. This kit includes five headers (two 13-pin, one 7-pin, one 3-pin, and one 2x...
Audio Adapter Board for Teensy 4.0
This audio adaptor lets you easily add high quality 16 bit, 44.1 kHz sample rate (CD quality) audio to your projects with Teensy 4.0 (Rev D). It supports stereo headphone and stereo line-level output, and also stereo line-level input or mono microphone input. The Teensy Audio Library lets...
