Teensy 4.1 Development Board

Looking for Teensy 4.1 Development Board? Teensy 4.1 Development Board is available at Zbotic with fast shipping across India.

The Teensy 4.1 is the newest iteration of the astoundingly popular development platform that features an ARM Cortex-M7 processor at 600MHz, with an NXP iMXRT1062 chip, four times larger flash memory than the 4.0, and two new locations to optionally add more memory. The Teensy 4.1 is the same size and shape as the Teensy 3.6 (2.4in by 0.7in) and provides greater I/O capability, including an ethernet PHY, SD card socket, and USB host port.

When running at 600 MHz, the Teensy 4.1 consumes approximately 100mA current and provides support for dynamic clock scaling. Unlike traditional microcontrollers, where changing the clock speed causes wrong baud rates and other issues, Teensy 4.1 hardware and Teensyduino’s software support for Arduino timing functions are designed to allow dynamically speed changes. Serial baud rates, audio streaming sample rates, and Arduino functions like delay() and millis(), and Teensyduino’s extensions like IntervalTimer and elapsedMillis, continue to work properly while the CPU changes speed. Teensy 4.1 also provides 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 and turned back on by a brief button press. If a coin cell is connected to VBAT, Teensy 4.1’s RTC also continues to keep track of date & time while the power is off. Teensy 4.1 also can also be overclocked, well beyond 600MHz!

Teensy 4.1’s Cortex-M7 processor includes a floating-point unit (FPU) that supports both 64 bit “double” and 32-bit “float”. With M4’s FPU on Teensy 3.5 & 3.6, and also Atmel SAMD51 chips, only 32-bit float is hardware accelerated. Any use of double, double functions like log(), sin(), cos() means slow software implemented math. Teensy 4.1 executes all of these with FPU hardware.

Pin diagram

Features:

1. 10 / 100 Mbit DP83825 PHY (6 pins)
2. ARM Cortex-M7 at 600MHz
3. 1024K RAM (512K is tightly coupled)
4.  CAN Bus (1 with CAN FD)
5. 2 I²S Digital Audio
6. 1 S/PDIF Digital Audio
7. 3 SPI, all with 16 word FIFO
8. 7 Bottom SMT Pad Signals
9. 8 Serial ports
10. 32 general-purpose DMA channels
11. Cryptographic Acceleration
12. Random Number Generator
13. RTC for date/time
14. Programmable FlexIO
15. Pixel Processing Pipeline
16. Peripheral cross triggering
17. microSD Card Socket
18. Power On/Off management

Related Article:

Teensy 4.1 Is the First Arduino-Compatible Board

Package includes:

1 x Teensy 4.1 Development Board

Datasheet:

Teensy 4.1 Development Board Overview

The Teensy 4.1 Development Board is a high-performance microcontroller module featuring an ARM Cortex-M7 processor running at 600 MHz. Designed for advanced embedded projects, it offers expanded I/O, integrated Ethernet PHY, SD card socket and USB Host capabilities for data-intensive and networking applications.

Key Features of Teensy 4.1 Development Board

• 600 MHz ARM Cortex-M7 (NXP i.MX RT1062) processor for real-time signal processing
• 1 MB RAM (512 KB tightly coupled) and 8 MB Flash onboard (64 KB reserved for recovery/EEPROM emulation)
• Built-in Ethernet PHY and MicroSD card socket for network connectivity and data logging
• USB Host port plus standard USB device port for peripheral interfacing (keyboards, storage, MIDI, etc.)
• 55 digital I/O pins with support for I2C, SPI, UART, PWM and analog input
• Genuine product shipped fast from Zbotic: authentic Teensy hardware with express delivery

Applications and Use Cases

• High-speed audio processing and real-time DSP algorithms
• Ethernet-enabled control systems and small network servers
• Data logging and telemetry via onboard MicroSD card slot
• Robotics motion control with multiple PWM and encoder inputs
• USB Host projects such as MIDI controllers, HID devices or mass-storage readers

How to Use Teensy 4.1 Development Board

To begin, install the free Teensyduino add-on for the Arduino IDE, connect the Teensy 4.1 to your PC via USB, and select “Teensy 4.1” under Tools → Board. Write or import your sketch, compile and upload — the onboard bootloader manages flashing. For Ethernet, wire the PHY pins to an RJ45 jack and include the native Ethernet library; for SD storage, insert a microSD card and use the SD library.

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Frequently Asked Questions

What development tools are required for Teensy 4.1?

Use the Arduino IDE with the Teensyduino add-on. Teensyduino installs board definitions, libraries and the Teensy Loader application for seamless compilation and USB programming.

How do I expand memory on Teensy 4.1?

Two solder pads on the underside allow optional addition of PSRAM or SPI Flash modules. Follow the memory expansion guide on PJRC’s website to solder compatible chips and update your linker settings.

Can I use the onboard Ethernet PHY directly?

Yes. Teensy 4.1 includes a 10/100 Mbps Ethernet PHY. You need to wire external RJ45 connector + magnetics and use the native Ethernet library for TCP/IP networking.