TEENSY41 Teensy 4.1 Development Board

Teensy 4.1 features the fastest micocontroller and an expanded set of powerful peripherals in a 2.4 by 0.7 inch form factor.

Teensy 4.1 can be programmed using the Arduino IDE with Teensyduino add-on.

Technical Specifications Compared to Teensy 4.0

Teensy 4.1 & 4.0 use the same IMXRT1062, so most technical specifications are the same.

Please refer to the Teensy 4.0 page for common specifications and features.

Pinouts

Teensy 4.1 is designed to bring all general purpose I/O pins to breadboard friendly pads on the outside edges.

Ethernet

To use the Ethernet port, a magjack and capacitor need to be connected.

This is currently available only as a DIY project using this OSH Park Shared Circuit Board. PJRC is planning to offer this as a DIY kit in the near future. You can also make the connection by soldering wires.

These parts are recommended to build the Ethenet connection.

1   Ethernet Magjack            RB1-125BAG1A, Mouser 950-RB1-125BAG1A, Digikey 1278-1011-ND
2   Header, 3x2, 2mm pitch      Digikey 1849-1000-ND
2   Socket, 3x2, 2mm pitch      Amphenol FCI 89361-706LF, Digikey 609-3139-ND
1   Ribbon Cable, 3 to 6 inch   Digikey HF06S-5-ND
1   Capacitor, 0.1uF, 805
1   Capacitor, 1uF, 805         probably not needed
1   Capacitor, 1nF, 805         optional, should be high voltage rated if used
1   Resistor, 1M                optional
1   Circuit Board               OSH Park Shared PCB

Memory Expansion

Basic memory layout is documented on the Teensy 4.0 page.

The bottom side of Teensy 4.1 has locations to solder 2 memory chips. 

The smaller location is meant for a PSRAM chip. The larger location is intended for flash memory.

USB Host

Teensy 4.1's USB Host port allow you to connect USB devices, like keyboards and MIDI musical instruments. A 5 pin header and a USB Host cable are needed to be able to plug in a USB device.

USB hubs may be used if more than 1 device is needed. See the USBHost_t36 examples for details.

Technical Information

Dimensions

Schematic

Component Locations