MIDI Forum

I see. So I can transmit from my 5Volt keyboard to a 3.3 volt keyboard with no problems. Is that correct? The 5 volt spec used 2 x 220 ohms The 3....

I am expecting to measure 5mA of current drawn between two devices, however it is much less than that, about 0.1 mA. But things seem to be working ok....

What happens if a 5V midi device is connected to a 3.3 volt midi device?