I’m triing for make works MKR1000 with 4-Channel SPDT Relay, but even if the relay board is connected (via I2C) or not… it’s sufficent to insert in the sketch the declaration
</s>#include <multi_channel_relay.h>
Multi_Channel_Relay relay;<e>
to hangs the MKR1000; the most strange fact is that the MKR board hangs right before the bootloader so no serial port is given available and it’s impossibile to upload another sketch until putting the board in “bootloader mode”.
Obviously I tried with another MKR1000 board and the result is the same.