Teensy 4.1 Development Board
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Teensy 4.1 features the fastest microcontroller and an expanded set of powerful peripherals in a 2.4 by 0.7 inch form factor.
Teensy 4.0 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.
Feature | Teensy 4.1 | Teensy 4.0 |
---|---|---|
Ethernet | 10 / 100 Mbit DP83825 PHY (6 pins) |
-none- |
USB Host | 5 Pins with power management |
2 SMT Pads |
SDIO (4 bit data) | Micro SD Socket | 8 SMT Pads |
PWM Pins | 35 | 31 |
Analog Inputs | 18 | 14 |
Serial Ports | 8 | 7 |
Flash Memory | 8 Mbyte | 2 Mbyte |
QSPI Memory | 2 chips Plus Program Memory |
Program memory only |
Breadboard Friendly I/O | 42 | 24 |
Bottom SMT Pad Signals | 7 | 16 |
SD Card Signals | 6 | 0 |
Total I/O Pins | 55 | 40 |
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.
Memory Expansion
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.
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Teensy 4.1 Development Board
TEENSY41£23.00
Useful extras
-
Break Away Headers – Straight+ £1.25
-
Maker Essentials - Mixed 0.1"/2.54mm Headers (50pcs!)+ £5.75
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