I wish to control LEDs by EZB .
I saw in a tutorial leds connected directly to digital outputs without current limiting resistors. The leds I'd use sink 70 mA at 3,3 V . I don't think EZB could withstand such currents !
EZB specs only say the pins are TTL compatible but don't say what's the allowable current (high and low level). What's the allowable current ?
I'd add current limiting resistors if necessary.
I'd be disappointed burning out my EZB controller.