It features an ARM Cortex-M7 IMXRT1062 processor at 600 MHz. Envistia Mall is an authorized PJRC Teensy distributor. Technical Specifications compared to Teensy 4.0. Teensy 4.1. Teensy 4.0. Teensy 4.1 is designed to bring all general purpose I/O pins to breadboard friendly pads on the outside edges.
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