Teensy 4.1
pjrc_teensy_4_1
The Long Powerhouse.
600 MHz raw power, onboard Ethernet, and SD card slot. Absolute king.
Good to know
- STRICTLY 3.3V – the pins are NOT 5V tolerant (unlike the Teensy 3.2)!
- Uploading: white button + Teensy Loader (Teensyduino).
- On external power, cut the VUSB–VIN solder bridge before also plugging in USB.
- Ethernet needs a separate magjack kit; PSRAM/flash can be soldered underneath.
Pinout
Tap to enlarge