This audio adapter lets you easily add high quality 16 bit, 44.1 kHz sample rate (CD quality) audio to your projects with a Teensy 3.2, 3.5 or 3.6. It supports stereo headphone and stereo line-level output, and also stereo line-level input or mono microphone input.The audio chip connects to Teensy v3 using 7 signals. The I2C pins SDA and SCL are used to control the chip and adjust parameters. Audio data uses I2S signals, TX (to headphones and/or line out) and RX (from line in or mic), and 3 clocks, LRCLK (44.1 kHz), BCLK (1.41 MHz) and MCLK (11.29 MHz). All 3 clocks are created by Teensy 3.1. The SGTL5000 chip operates in "slave mode", where all its clock pins are inputs.

As of February 23rd, 2015 we are shipping an updated version with a few minor changes.This product does NOT include a Teensy, it's just the audio adapter!

The Teensy is a breadboard-friendly development board with loads of features in a, well, teensy package. Each Teensy 3.1 comes pre-flashed with a bootloader so you can program it using the on-board USB connection: No external programmer needed! You can program for the Teensy in your favorite program editor using C or you can install the Teensyduino add-on for the Arduino IDE and write Arduino sketches for Teensy!

The processor on the Teensy also has access to the USB and can emulate any kind of USB device you need it to be, making it great for USB-MIDI and other HID projects. The 32 bit processor brings a few other features to the table as well, such as multiple channels of Direct Memory Access, several high-resolution ADCs and even an I2S digital audio interface! There are also 4 separate interval timers plus a delay timer! Oh yeah, and all pins have interrupt capability. Also, it can provide system voltage of 3.3V to other devices at up to 250mA.

All of this functionality is jammed into a 1.4 x 0.7 inch board with all headers on a 0.1" grid so you can slap in on a breadboard and get to work! The Teensy 3.2 adds a more powerful 3.3 volt regulator, with the ability to directly power an ESP8266 Wifi, WIZ820io Ethernet, and other 3.3V add-on boards that require a little more power. Additionally, if it is used within the Teensy 3.1 limits of operation, the Teensy 3.2 and 3.1 are interchangeable!

Note: This does not come with a USB cable, please check below for an appropriate one.

Features

32 bit ARM Cortex-M4 72 MHz CPU (M4 = DSP extensions)

256K Flash Memory, 64K RAM, 2K EEPROM

21 High Resolution Analog Inputs (13 bits usable, 16 bit hardware)

34 Digital I/O Pins (5V tolerance on Digital Inputs)

12 PWM outputs

7 Timers for intervals/delays, separate from PWM

USB with dedicated DMA memory transfers

3 UARTs (serial ports)

SPI, I2C, I2S,CAN Bus, IR modulator

I2S (for high quality audio interface)

Real Time Clock (with user-added 32.768 crystal and battery)

16 DMA channels (separate from USB)

Touch Sensor Inputs

1.4 x 0.7" (~35 x 18 mm)

Teensy 3.2 is a small, breadboard-friendly development board designed by Paul Stoffregen and PJRC. Teensy 3.2 brings a low-cost 32 bit ARM Cortex-M4 platform to hobbyists, students and engineers, using an adapted version of the Arduino IDE (Teensyduino) or programming directly in C language. Teensy 3.2 is an upgrade over 3.1! Teensy 3.2 is a drop-in replacement upgrade for 3.1 and can run any sketches designed for 3.1.

This latest version of this complete USB-based microcontoller development system now adds a more powerful 3.3V regulator, as well as accepts a wider voltage input range. This board has the same size, shape and pinout as well as full compatibility with all shields and add-on boards made for the Teensy 3.1, plus double the Flash memory as the Teensy 3.0.

Let's get started!

Please note: Teensy 3 and 2 are not official Arduino-brand products. Although the Teensyduino IDE has been adapted so that many simple Arduino projects will work with the Teensy, there will still be a lot of libraries and shields that will not work with this device! If you're new to microcontrollers, we suggest going with a classic Arduino UNO since all Arduino projects, examples and libraries will work with it.

Once headers are installed they can be fitted into 0.6" wide socketsTechnical Specifications:

32 bit ARM Cortex-M4 72MHz CPU (M4 = DSP extensions) Here is Freescale's reference manual for the chip (warning 1227 pages) as well as the Datasheet and User Guide!

256K Flash Memory, 64K RAM, 2K EEPROM

21* High Resolution Analog Inputs (13 bits usable, 16 bit hardware)

34* Digital I/O Pins (21 shared with analog)

12 PWM outputs

1 12-bit DAC output

8 Timers for intervals/delays, separate from PWM

USB with dedicated DMA memory transfers

CAN bus

3 UARTs (serial ports)

SPI, I2C, I2S, IR modulator

I2S (for high quality audio interface)

Real Time Clock (with user-added 32.768 crystal and battery)

16 general purpose DMA channels (separate from USB)

Touch Sensor Inputs

Information, documentation and specs are on the Teensy site. Please check it out for more details!

The awesome new Teensy 3.5 is a small, breadboard-friendly development board designed by Paul Stoffregen and PJRC. Teensy 3.5 brings a low-cost 32-bit ARM Cortex-M4 platform to hobbyists, students and engineers, using an adapted version of the Arduino IDE (Teensyduino) or programming directly in C language. Teensy 3.5 is an upgrade over 3.2, for when you need even more power!

Version 3.5 features a 32 bit 120 MHz ARM Cortex-M4 processor with floating point unit. All digital pins are 5 volt tolerant. The unique specs for the 3.5 are:

120 MHz ARM Cortex-M4 with Floating Point Unit

512K Flash, 192K RAM, 4K EEPROM

Microcontroller Chip MK64FX512VMD12 (PDF link)

1 CAN Bus Port

16 General Purpose DMA Channels

5 Volt Tolerance On All Digital I/O Pins

The latest in the line of very powerful, USB-capable microcontrollers, the Teensy 3.5 and 3.6 development boards are faster, more capable, and bigger, putting even more pins on a solderless breadboard. Teensy 3.5 offers a little bit less in its features (MCU, RAM, Flash, clock and some peripherals) which makes it slightly cheaper than Teensy 3.6. Teensy 3.5 has 5V tolerance on all digital I/O pins. Only Teensy 3.6 has a USB High Speed (480 Mbit/sec) port accessed using 5 pins on the board.

Please note: Teensy 3 boards are not official Arduino-brand products. Although the Teensyduino IDE has been adapted so that many Arduino projects will work with the Teensy, there will still be a lot of libraries and shields that may not work with this device! If you're new to microcontrollers, we suggest going with a classic Arduino UNO since all Arduino projects, examples and libraries will work with it.More Specifications, Details & Features:

62 I/O Pins (42 breadboard friendly)

25 Analog Inputs to 2 ADCs with 13 bits resolution

2 Analog Outputs (DACs) with 12 bit resolution

20 PWM Outputs (Teensy 3.6 has 22 PWM)

USB Full Speed (12 Mbit/sec) Port

Ethernet mac, capable of full 100 Mbit/sec speed

Native (4 bit SDIO) micro SD card port

I2S Audio Port, 4 Channel Digital Audio Input & Output

14 Hardware Timers

Cryptographic Acceleration Unit

Random Number Generator

CRC Computation Unit

6 Serial Ports (2 with FIFO & Fast Baud Rates)

3 SPI Ports (1 with FIFO)

3 I2C Ports (Teensy 3.6 has a 4th I2C port)

Real Time Clock

Information, documentation and specs are on the Teensy site. Please check it out for more details!

The awesome new Teensy 3.6 is a small, breadboard-friendly development board designed by Paul Stoffregen and PJRC. Teensy 3.6 brings a low-cost 32-bit ARM Cortex-M4 platform to hobbyists, students and engineers, using an adapted version of the Arduino IDE (Teensyduino) or programming directly in C language. Teensy 3.6 is an upgrade over 3.2 and 3.5, for when you need even more power!

Version 3.6 features a 32 bit 180 MHz ARM Cortex-M4 processor with floating point unit. All digital and analog pins are 3.3 volts. Do not apply more than 3.3V to any signal pin. The unique specs for the 3.6 are:

180 MHz ARM Cortex-M4 with Floating Point Unit

1M Flash, 256K RAM, 4K EEPROM

Microcontroller Chip MK66FX1M0VMD18 (PDF link)

USB High Speed (480 Mbit/sec) Port

2 CAN Bus Ports

32 General Purpose DMA Channels

22 PWM Outputs

4 I2C Ports

11 Touch Sensing Inputs

The latest in the line of very powerful, USB-capable microcontrollers, the Teensy 3.5 and 3.6 development boards are faster, more capable, and bigger, putting even more pins on a solderless breadboard. Teensy 3.6 offers a little bit more in its features (MCU, RAM, Flash, clock and some peripherals) than Teensy 3.5, and only the 3.6 has a USB High Speed (480 Mbit/sec) port accessed using 5 pins on the board.

Please note: Teensy 3 boards are not official Arduino-brand products. Although the Teensyduino IDE has been adapted so that many Arduino projects will work with the Teensy, there will still be a lot of libraries and shields that may not work with this device! If you're new to microcontrollers, we suggest going with a classic Arduino UNO since all Arduino projects, examples and libraries will work with it.More Specifications, Details & Features:

62 I/O Pins (42 breadboard friendly)

25 Analog Inputs to 2 ADCs with 13 bits resolution

2 Analog Outputs (DACs) with 12 bit resolution

20 PWM Outputs (Teensy 3.6 has 22 PWM)

USB Full Speed (12 Mbit/sec) Port

Ethernet mac, capable of full 100 Mbit/sec speed

Native (4 bit SDIO) micro SD card port

I2S Audio Port, 4 Channel Digital Audio Input & Output

14 Hardware Timers

Cryptographic Acceleration Unit

Random Number Generator

CRC Computation Unit

6 Serial Ports (2 with FIFO & Fast Baud Rates)

3 SPI Ports (1 with FIFO)

3 I2C Ports (Teensy 3.6 has a 4th I2C port)

Real Time Clock

Information, documentation and specs are on the Teensy site. Please check it out for more details!