Description
The Teensy 4.1 is the latest version of a highly popular development platform. It boasts an impressive ARM Cortex-M7 processor running at 600MHz and incorporates the NXP iMXRT1062 chip. Compared to its predecessor, the Teensy 4.0, it offers four times the flash memory capacity and introduces two additional memory expansion options. The Teensy 4.1 maintains the compact size and shape of the Teensy 3.6, measuring 2.4 inches by 0.7 inches. However, it enhances the input/output capabilities by including features such as an ethernet PHY, an SD card socket, and a USB host port. Notably, the Teensy 4.1 comes with pre-attached headers, eliminating the need for soldering and allowing for quick and easy setup.
At its maximum operating speed of 600 MHz, the Teensy 4.1 consumes around 100mA of current. It supports dynamic clock scaling, which means that clock speed changes do not affect the accuracy of baud rates and other timing functions, unlike traditional microcontrollers. The hardware of the Teensy 4.1, along with the Teensyduino software's support for Arduino timing functions, is designed to accommodate dynamic speed changes seamlessly. This ensures that serial baud rates, audio streaming sample rates, Arduino functions like delay() and millis(), as well as Teensyduino's extensions like IntervalTimer and elapsedMillis, continue to function correctly even as the CPU speed fluctuates. Additionally, the Teensy 4.1 incorporates a power shut-off feature. By connecting a pushbutton to the On/Off pin, the 3.3V power supply can be completely disabled by holding the button for five seconds. A brief press of the button restores power. Furthermore, if a coin cell is connected to VBAT, the Teensy 4.1's RTC (Real-Time Clock) can keep track of the date and time while the power is off. It's worth noting that the Teensy 4.1 also has the ability to be overclocked well beyond its default speed of 600MHz.
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ARM Cortex-M7 at 600MHz
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1024K RAM (512K is tightly coupled)
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8 Mbyte Flash (64K reserved for recovery & EEPROM emulation)
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USB Host Port
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2 chips Plus Program Memory
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55 Total I/O Pins
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3 CAN Bus (1 with CAN FD)
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2 I2S Digital Audio
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1 S/PDIF Digital Audio
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1 SDIO (4 bit) native SD
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3 SPI, all with 16 word FIFO
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7 Bottom SMT Pad Signals
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8 Serial ports
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32 general purpose DMA channels
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35 PWM pins
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42 Breadboard Friendly I/O
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18 analog inputs
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Cryptographic Acceleration
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Random Number Generator
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RTC for date/time
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Programmable FlexIO
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Pixel Processing Pipeline
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Peripheral cross triggering
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10 / 100 Mbit DP83825 PHY (6 pins)
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microSD Card Socket
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Power On/Off management
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Pre-soldered Male Headers
FAQs:
Q: What are the key differences between Teensy 4.1 with Headers and the standard Teensy 4.1?
A: The main difference is that this version comes with pre-soldered headers, making it easier to use with breadboards and other prototyping tools. The standard Teensy 4.1 requires users to solder headers themselves.
Q: What are the main features of the Teensy 4.1?
A: The Teensy 4.1 features a powerful ARM Cortex-M7 processor at 600MHz, 1MB RAM, 8MB Flash, Ethernet, SD card socket, USB host port, multiple communication interfaces, and extensive I/O capabilities.
Q: Is the Teensy 4.1 compatible with the Arduino IDE?
A: Yes, the Teensy 4.1 is fully compatible with the Arduino IDE through the Teensyduino add-on. This allows you to easily use Arduino libraries and sketches for development.
Q: What kind of projects is the Teensy 4.1 suitable for?
A: The Teensy 4.1 is suitable for a wide range of projects, including high-speed data logging, audio and video processing, complex control systems, robotics, and IoT devices.
Q: What is the power consumption of the Teensy 4.1?
A: The power consumption varies depending on the specific usage and clock speed. However, it typically consumes around 100mA at 600MHz. The Teensy 4.1 also supports dynamic clock scaling to optimize power usage.