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Small green circuit board 2.4 by .7 inch with gold edge pins and Ethernet jack

PJRC

PJRC Teensy 4.1 USB Development Board + Ethernet Kit

SKU CH-0EF6-4PWKJ

A 600 MHz ARM Cortex-M7 development board with Ethernet kit, 55 I/O pins, USB host and device, SD card slot, and Arduino IDE support

  • TypeEngineering Development Tools
  • 600 MHz ARM Cortex-M7 delivers extreme processing speed
  • Ethernet 10/100 Mbit PHY enables wired network connectivity
  • Arduino IDE with Teensyduino add-on simplifies programming workflow
  • 4 by 0.7 inch board with breadboard-friendly edge pads
  • USB host and device at 480 Mbit/sec plus native SDIO SD card port

Teensy 4.1 Development Board for Embedded Projects

The Teensy 4.1 is a compact microcontroller board built around the NXP iMXRT1062 chip running at 600 MHz. It targets engineers, students and makers who need high-speed processing, native Ethernet and extensive I/O in a breadboard-friendly 2.4 by .7 inch form factor. The kit includes the Ethernet option for wired network connectivity. It is not suited for builders who require integrated wireless radios or on-board pin headers.

Thermals and Power in Typical Operation

The ARM Cortex-M7 core delivers 600 MHz performance with a floating-point unit while drawing modest current from a single USB supply. No active cooling is required for normal workloads. The board exposes 55 digital pins, 35 PWM outputs and 18 analogue inputs alongside 8 serial, 3 SPI and 3 I2C ports. Silent operation is inherent because the design has no moving parts.

Behaviour Under Sustained Load

The 7936K flash and 1024K RAM (512K tightly coupled) support large firmware images and data buffers during long-running tasks. Dual USB 480 Mbit/sec interfaces handle continuous host and device traffic. The on-board DP83825 PHY provides 10/100 Mbit Ethernet throughput. QSPI footprints allow soldering two additional memory chips for expanded storage. 32 general-purpose DMA channels offload peripheral transfers from the CPU.

Pontos fortes

  • 600 MHz ARM Cortex-M7 delivers extreme processing speed
  • Ethernet 10/100 Mbit PHY enables wired network connectivity
  • Arduino IDE with Teensyduino add-on simplifies programming workflow
  • 4 by 0.7 inch board with breadboard-friendly edge pads
  • USB host and device at 480 Mbit/sec plus native SDIO SD card port

Especificações

TypeEngineering Development Tools

Perguntas sobre este artigo

How do I attach the Ethernet kit to the board, and which pins are most often soldered incorrectly?

The Ethernet kit connects to the DP83825 PHY pads on the bottom side; the 10/100 Mbit signals and ground pins are the ones most frequently bridged or left cold during hand soldering.

What components will need replacement after extended operation?

The micro-SD card socket and the two QSPI memory expansion pads are the only parts subject to mechanical wear or rework if additional RAM or Flash chips are added later.

At what point does sustained 600 MHz operation hit a thermal limit?

The NXP iMXRT1062 Cortex-M7 has no on-board heatsink; in a 2.4 by 0.7 inch form factor the junction temperature rises until the chip throttles, which is the first hard limit under continuous load.

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