Teensy-LC without Pins

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  • Adafruit-2419
  • 2419
Teensy-LC (Low Cost) is a powerful 32 bit microcontroller board, with a rich set of... more
Product information "Teensy-LC without Pins"

Teensy-LC (Low Cost) is a powerful 32 bit microcontroller board, with a rich set of hardware peripherals, at a very affordable price!

Teensy-LC delivers an impressive collection of capabilities to make modern electronic projects simpler. It features an ARM Cortex-M0+ processor at 48 MHz, 62K Flash, 8K RAM, 12 bit analog input & output, hardware Serial, SPI & I2C, USB, and a total of 27 I/O pins. See the technical specifications and pinouts for details. Teensy-LC maintains the same form-factor as Teensy 3.1, with most pins offering similar peripheral features.

Real Hardware Serial

Most modern projects involve serial communication with sensors, other chips, other systems, or even the internet. Hardware serial ports greatly simplify projects and enable excellent performance. Teensy-LC provide plenty of serial connectivity: 2 SPI ports, 2 I2C, and 3 Serial ports. All 3 serial ports are supported by high quality drivers in Teensyduino, with both transmit and receive buffering, and even support for RS485 transmitter enable. Teensy-LC will be ideal for inexpensive "Internet Of Things" projects when paired with a ESP8266 Wifi module, which requires a fast hardware serial or SPI port.

Efficient USB Communication

Teensy-LC has the same powerful USB hardware as Teensy 3.1. All USB data transfer is done directly to memory with minimal CPU overhead. Teensy-LC supports USB Serial, MIDI, Keyboard (international layouts), Mouse, Joystick, and RawHID protocols. A full set of 16 bidirectional USB endpoints are supported by the hardware, allowing any type of USB device. As more USB protocols are added to Teensyduino, despite its low cost, Teensy-LC will be up the task.

Hardware Timers

Many Arduino libraries require a hardware timer. Traditional Arduino products have 3 or 4 timers, with only 1 or 2 providing more than 8 bit resolution. Teensy-LC has a total of 7 timers, all of them with 16 or more bits of resolution, to allow excellent compatibility with easy-to-use libraries. Many combinations of popular libraries, which would normally conflict, can seamlessly run together on Teensy LC and Teensy 3.1.

Analog Input & Output at 12 Bit Resolution

Analog signals are critically important to many projects. Teensy-LC has 13 pins than can function as analog inputs. The effective analog resolution is 12 bits. It also has a true 12 bit digital to analog converter, for an analog output signal.

32 bit ARM Cortex M0+ Processor

The Cortex-M0+ processor is a powerful, full 32 bit CPU, designed for lower power, lower cost devices. Cortex-M0+ has fewer instructions and a simpler bus structure than the more powerful Cortex-M4 on Teensy 3.1. For simple code, M0+ often runs at similar speed, when running at the same clock frequency. For math-intensive applications, Cortex-M4 can be significantly faster, and of course it supports higher clock rates. Cortex-M0+ at 48 MHz is much faster than 8 bit AVR processors at 16 MHz, especially when manipulating 16 and 32 bit variables!

5 Volt Buffer For WS2812/NeoPixel LED Projects

Teensy-LC provides a 5V output to directly drive WS2812/NeoPixel LEDs. A 74LV1T125 buffer is connected to pin 17, with the increased output voltage available on another pin.

TECHNICAL DETAILS

Dimensions

18mm x 37mm x 4mm / 0.7" x 1.5" x 0.2"

 

Processor

MKL26Z64VFT4

Core

Coretx-M0+

Rated Speed

48 MHz

 

Flash Memory

62 KB

Bandwidth

96 MB/sec

Cache

64 bytes

 

RAM

8 KB

EEPROM

1/8 (emu) KB

Direct Memory Access

4 channels

 

Digital I/O

27 Pins

Voltage Output

3.3V + one 5V

Current Output

5mA + four 20mA

Voltage Input

3.3V

 

Analog Input

13 pins

Converters

1

Resolution

16 bits

Usable

12 bits

Prog Gain Amp

0

Touch Sensing

11 pins

 

Analog Output

1 pins

DAC Resolution

12 bits

 

Timers

7 total

FTM Type

3

PWM Outputs

10 pins

PDB Type

0

CMT (infrared) Type

0

LPTMR Type

1

PIT (interval) Type

2

Systick

1

RTC (date/time)

 0

Communication  

USB

1

Serial

3

With FIFOs

0

High Res Baud

0

Fast Clock

1

SPI

2

With FIFOs

1

I2C

2

CAN Bus

0

I2S Audio

1

FIFO Size

4

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