Shopping Cart Download Website Home Products Teensy Blog Forum You are here: Teensy Main Page PJRC Store Teensy 4.1, $26.85 Teensy 4.0, $19.95 Teensy 3.6, $29.25 Teensy 3.5, $24.25 Teensy 3.2, $19.80 Teensy LC, $11.65 Teensy 2.0, $16.00 Teensy Main Page Hardware Getting Started Tutorial How-To Tips Code Library Projects Teensyduino Reference Follow 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. Update: Discussion / Support Forum 32 Bit Teensy® Boards High performance Large Memory Plentiful Resources Teensy 4.0 600 MHz Cortex-M7 Teensy 4.1 600 MHz Cortex-M7 Teensy 3.2 72 MHz Cortex-M4 3.3V signals, 5V tolerant Teensy 3.6 180 MHz Cortex-M4F 3.3V signals Teensy LC 48 MHz Cortex-M0+ 3.3V signals Teensy 3.5 120 MHz Cortex-M4F 3.3V signals, 5V tolerant 8 Bit Teensy® Boards Legacy Compatibility 5 Volt Signals Teensy 2.0 16 MHz AVR 5V signals Teensy++ 2.0 16 MHz AVR 5V signals Key Features: Compatible with Arduino Software & Libraries USB can be any type of device Single pushbutton programming Easy to use Teensy Loader application Free software development tools Works with Mac OS X, Linux & Windows Tiny size, perfect for many projects Available with pins for solderless breadboard Specification Teensy 2.0 Teensy++ 2.0 Teensy 3.0 Teensy 3.1 Processor ATMEGA32U4 8 bit AVR 16 MHz AT90USB1286 8 bit AVR 16 MHz MK20DX128 32 bit ARM Cortex-M4 48 MHz MK20DX256 32 bit ARM Cortex-M4 72 MHz Flash Memory 32256 130048 131072 262144 RAM Memory 2560 8192 16384 65536 EEPROM 1024 4096 2048 2048 I/O 25, 5 Volt 46, 5 Volt 34, 3.3 Volt 34, 3.3V, 5V tol Analog In 12 8 14 21 PWM 7 9 10 12 UART,I2C,SPI 1,1,1 1,1,1 3,1,1 3,2,1 Price $16.00 $24.00 $19.00 $19.80 Teensy Loader Application The Teensy Loader makes getting code into your Teensy easy. Just press and release the reboot button and the processor runs the HalfKay bootloader, which is automatically detected. Teensy Loader lets you download your code and reboot to it. Automatic mode downloads and reboots to your code the instant your computer detects HalfKay. The latest version of your code is always used. Just press the button and within 1 to 2 seconds your latest code is running! Software Development Tools WinAVR C compiler. Teensyduino, add-on for Arduino IDE. Simplified USB Examples or Dean Camera's LUFA library. Breadboard Usage The Teensy is available with header pins, for direct no-soldering-required use on a breadboard, which can also be run from the +5 volt from the USB cable. Standard Teensy boards come with solder pads. Either way, all Teensy boards come fully assembled and tested, so no surface mount soldering is needed. The Teensy with header pins is easy to use with a solderless breadboard The 128x64 Graphics LCD can be used with Teensy 2.0 and Teensy++ 2.0 and Teensyduino using this GLCD library. They fit together nicely on a single breadboard. Teensy++ 2.0 with 128x64 Graphics LCD