DMX Input / Output

With this code it kind of works...

var dmx = new Uint8Array( 512 );
var dmxIdx = 0;

Serial2.setup( 250000 );

Serial2.on( 'data', function( d ) {
  dmx.set( d, dmxIdx );
  dmxIdx += d.length;
} );

setWatch( function() {
  dmxFrame( dmx );
  dmxIdx = 0;
}, B8, { repeat: true, edge: 'falling' } );

function dmxFrame( data ) {
  console.log( "1: " + data[1] + " 2: " + data[2] + " 3: " + data[3] + " 4: " + data[4] + " 5: " + data[5] + " 6: " +  data[6] );
}

However the issue is that bytes later on seem to become corrupt if the values before it are low... I looked at the signal out of the DMX shield and it looks like the signal was jumping around a bit only when the circuit with the diode, capacitor and resistor were connected.

My theory was that perhaps there was some electricity flowing back through the resistor or because it's a general purpose diode it is some how not quick enough. I remember that zener diode is faster or something.. anyways my electrical knowledge is limited here so I found a little zener and tried it and it's working great.

It appears to be a 1n2268.

More experimenting to happen...