The Teensy 3.6: Extreme MCUs // Review


Originally published at:

My last Teensy review concentrated more on version 3.5.

This review will be taking a look at the 3.6 and the changes that have happened to Teensyduino.


Hi…i want to know how does the second MCU obtain the new software to install on the main MCU? I don’t see any connections for the secondary MCU to get new software other than through the main MCU. Can the secondary MCU access the main MCU’s USB through JTAG or something?

printed circuit board


Hi ChesLans,
There’s only one MCU on the Teensy. This is simply pulling video data from the SD card and pushing it to the SPI based LCD.