Electronics

Teensy 4.0 Development Board

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Description

The Teensy 4.0 Development Board is a small and powerful microcontroller board that is designed to provide high-performance computing capabilities in a compact form factor. It is based on the ARM Cortex-M7 processor and features a clock speed of 600MHz, 1984K Flash, 1024K RAM, and a wide range of I/O pins for interfacing with various peripherals. The board is designed for use in a variety of applications, including robotics, audio processing, and Internet of Things (IoT) devices. It also features a range of connectivity options, including USB, Ethernet, and CAN bus, making it ideal for use in networked applications. In addition to its powerful hardware capabilities, the Teensy 4.0 Development Board is also supported by a large community of developers and enthusiasts, who have created a wide range of libraries and tools to help users get the most out of the board.

 

Package Includes:

  • 1 x Teensy 4.0 Development Board

 

Features:

  • ARM Cortex-M7 Processor: The board is based on the ARM Cortex-M7 processor, which provides a clock speed of up to 600MHz.
  • Memory: It features 1984K Flash, 1024K RAM
  • I/O Pins: The board has 22 digital input/output pins, 4 analog inputs, and 2 PWM outputs.
  • Connectivity: The board comes with USB, Ethernet, and CAN bus connectivity options, as well as high-speed SD card access.
  • Compatibility: The board is compatible with the Arduino IDE and many other development environments.
  • Libraries and Tools: There is a wide range of libraries and tools available to help users get the most out of the board.
  • High-Performance Computing: The board is capable of running complex applications and processes, making it suitable for high-performance computing applications.
  • Low Power Consumption: Despite its high-performance capabilities, the board is designed to consume low amounts of power.

 

Description:

The Teensy 4.0 Development Board is a versatile and compact microcontroller board that is designed for high-performance computing applications. It is based on the powerful ARM Cortex-M7 processor, which provides a clock speed of up to 600MHz, making it one of the fastest microcontroller boards on the market. The board comes with a wide range of features that make it ideal for a variety of applications. It includes 1024KB of flash memory, 2048KB of RAM, and a range of I/O pins for interfacing with various peripherals. The I/O pins include digital input/output, analog input, and PWM output, making it suitable for a wide range of projects. The Teensy 4.0 Development Board is also designed with connectivity in mind. It comes with USB, Ethernet, and CAN bus connectivity options, which makes it ideal for use in networked applications. It also supports high-speed SD card access, which allows for easy data storage and retrieval. One of the standout features of the Teensy 4.0 Development Board is its small size. It measures just 1.4 inches by 0.7 inches, making it easy to fit into small projects or devices. Despite its small size, it packs a lot of power and is capable of running complex applications and processes. The Teensy 4.0 Development Board is also supported by a large community of developers and enthusiasts. The board is compatible with the Arduino IDE and many other development environments, and there is a wide range of libraries and tools available to help users get the most out of the board.

 

Principle of Work:

The Teensy 4.0 Development Board works by executing code stored in its flash memory using its powerful ARM Cortex-M7 processor. The processor communicates with the board's various peripherals, including I/O pins, memory, and connectivity options, to carry out the instructions in the code. When the board is powered on, it loads the code stored in its flash memory into its RAM, where it can be executed by the processor. The processor reads the code one instruction at a time and carries out the corresponding operations on the board's various peripherals. The I/O pins, for example, can be used to read or write digital or analog signals from sensors or actuators, while the connectivity options, such as USB or Ethernet, allow the board to communicate with other devices or networks. The board's memory can be used to store and retrieve data, while the processor's high clock speed allows for complex computations to be carried out quickly and efficiently. The board is designed to be programmed using a variety of development environments, such as the Arduino IDE or other compatible tools, allowing users to write code that can take advantage of the board's powerful capabilities. The board is also supported by a large community of developers and enthusiasts, who have created a wide range of libraries and tools to help users get the most out of the board.

 

Pinout of the Module:

 

  • 3.3V: Provides a regulated 3.3V output for powering external components.
  • AREF: Analog reference voltage input.
  • Analog Pins: A0 to A15: These pins are used to read analog signals from sensors or other analog devices. They can also be used as digital input/output pins.
  • Digital Pins: 0 to 35: These pins can be used for digital input or output.
  • PWM Pins: 2 to 5, 7 to 9, 14 to 20: These pins can be used to generate a pulse width modulated (PWM) signals for controlling the speed of motors or the brightness of LEDs, for example.
  • TX1, RX1: Pins used for serial communication via the hardware Serial1 interface.
  • TX2, RX2: Pins used for serial communication via the hardware Serial2 interface.
  • SDA0, SCL0: Pins used for I2C communication via the Wire library.
  • SDA1, SCL1: Pins used for I2C communication via the Wire1 library.
  • SCK, MOSI, MISO: Pins used for SPI communication.
  • CAN1TX, CAN1RX: Pins used for CAN bus communication via the FlexCAN_T4 library.
  • Ethernet: Pins used for Ethernet connectivity.
  • SD Card: Pins used for high-speed SD card access.

 

 

Applications:

  1. Robotics: The Teensy 4.0 can be used to control motors and sensors in robotics projects, thanks to its powerful processing capabilities and support for various communication protocols.
  2. Audio Processing: The Teensy 4.0 has a built-in digital signal processor (DSP) and can be used to process audio signals in real time. It is an ideal platform for building audio effects processors, synthesizers, and music controllers.
  3. Internet of Things (IoT): The Teensy 4.0 can be used to connect various IoT devices and sensors to the internet, thanks to its built-in Ethernet and WiFi connectivity options.
  4. Machine Learning: Teensy 4.0's processing power and support for machine learning libraries make it an ideal platform for developing machine learning applications such as image and speech recognition.
  5. Automation: Teensy 4.0 can be used to automate various tasks such as controlling lights, appliances, and other electronics.
  6. Gaming: The Teensy 4.0 can be used to create retro-style gaming consoles, controllers, and other gaming accessories.

 

Circuit:

Connect an LED to pin 14 through a 220ohm resistor.

 

Library:

To program the Teensy 4.0 using the Arduino IDE, you will need to follow these steps:

  1. Download and install the Arduino IDE from the official website: https://www.arduino.cc/en/software

    • Go to the PJRC website download page for Teensyduino: https://www.pjrc.com/teensy/td_download.html
    • Select the appropriate download link for your operating system (Windows, macOS, or Linux).
    • Run the downloaded installer program and follow the on-screen instructions.
    • When prompted, select the folder where you have installed the Arduino IDE.
    • Complete the installation process.
    • Launch the Arduino IDE.
    • Verify that the installation was successful by checking if "Teensy" appears in the "Tools" > "Board" menu.
  2. Connect the Teensy 4.0 to your computer using a micro USB cable.
  3. Launch the Arduino IDE and select "Teensy 4.0" as the board type from the "Tools" > "Board" menu.
  4. Select the appropriate USB port from the "Tools" > "Port" menu.
  5. Write your code in the Arduino IDE.
  6. Verify your code by clicking on the "Verify" button (checkmark icon).
  7. Upload your code to the Teensy 4.0 by clicking on the "Upload" button (arrow icon).
  8. Wait for the Arduino IDE to compile and upload your code to Teensy 4.0.
  9. Once the upload is complete, your code will start running on the Teensy 4.0.

 

Code:

A code to blink an LED connected to pin 14 on a Teensy 4.0 board:

// Define the pin number
const int ledPin = 14;

void setup() {
  // Set the LED pin as an output
  pinMode(ledPin, OUTPUT);
}

void loop() {
  // Turn the LED on
  digitalWrite(ledPin, HIGH);
  
  // Wait for 500 ms
  delay(500);
  
  // Turn the LED off
  digitalWrite(ledPin, LOW);
  
  // Wait for 500 ms
  delay(500);
}

  • This code sets pin 14 as an output, then uses the digitalWrite() function to turn the LED on and off at a frequency of 1 Hz (500 ms on and 500 ms off).

 

Technical Details: 

  • ARM Cortex-M7 at 600 MHz
  • Float point math unit, 64 & 32 bits
  • 1984K Flash, 1024K RAM (512K tightly coupled), 1K EEPROM (emulated)
  • USB device 480 Mbit/sec & USB host 480 Mbit/sec
  • 40 digital input/output pins, 31 PWM output pins
  • 14 analog input pins
  • 7 serial, 3 SPI, 3 I2C ports
  • 2 I2S/TDM and 1 S/PDIF digital audio port
  • 3 CAN Bus (1 with CAN FD)
  • 32 general-purpose DMA channels
  • Cryptographic Acceleration & Random Number Generator
  • RTC for date/time
  • Programmable FlexIO
  • Pixel Processing Pipeline
  • Peripheral cross triggering
  • Power On/Off management

 

Resources:

Getting Started

 

Comparison:

 

The Teensy 4.0 and Arduino Uno are both development boards used for creating electronic projects, but they have several differences in terms of features and specifications. Here are some comparisons:

  1. Processor: The Teensy 4.0 is equipped with a 32-bit ARM Cortex-M7 processor running at 600 MHz, while the Arduino Uno has an 8-bit AVR microcontroller running at 16 MHz.
  2. Performance: Due to its powerful processor, the Teensy 4.0 can handle more complex tasks and run programs faster than the Arduino Uno.
  3. Memory: The Teensy 4.0 has 1 MB of flash memory and 512 KB of RAM, while the Arduino Uno has only 32 KB of flash memory and 2 KB of RAM. This means Teensy 4.0 can store larger programs and handle more data at once.
  4. I/O pins: The Teensy 4.0 has 23 digital I/O pins and 6 analog input pins, while the Arduino Uno has 14 digital I/O pins and 6 analog input pins.
  5. Voltage: The Teensy 4.0 operates at 3.3 volts, while the Arduino Uno operates at 5 volts.
  6. Price: The Teensy 4.0 is generally more expensive than the Arduino Uno, as it is a more powerful and feature-rich board.

The Teensy 4.0 is a more powerful and versatile development board compared to the Arduino Uno, making it suitable for more complex projects that require high-performance computing and larger memory capacity. However, for simpler projects with less demanding requirements, the Arduino Uno is a more cost-effective and practical option.