KurtE
Senior Member+
There is a lot of capability built into this board! I started making a KiCAD symbol, matched back to the Teensy 4.1 pin numbers, and labeled the additionally functionality. I realize this is what Kurt had in the excel table, but it was easier for me to visualize on the schematic. So we get: 2 SPI buses, all 3 CAN buses, 6 UARTs, 3 I2C, and a heap of Analog input and PWM output depending on how the pins are configured.
View attachment 25193
Note, I'm a robotics guy so the audio functionality was ignored. Also, the USB pin numbers might be incorrect, the Sparkfun schematic and hookup guide had some discrepancies.
Just an FYI - There are 3 SPI busses and 4 Wire objects and I think 7 Uarts... Again the Excel document where they all are. But for example some are on the SDIO pins...