See the github link below for a method (FlasherX) to update firmware on Teensy 4.1 via UART. In my case, the UART connection to T4.1 is from a PC host, but you could use the same method to update firmware in one T4.1 from another T4.1, and since...
I want to have a master Teensy 4.1 that is programmable in the normal way and for it to connect to 8 others (4.1 or 4.0) and for the master to be able to re-program each of the others. Is this possible and are there any examples anywhere? I've...