Improved reliability when receiving multiple serialport events at the same time
Improved reliability when receiving multiple serialport events at the same time

cncjs/cncjs,cheton/cnc.js,cheton/piduino-grbl,cheton/piduino-grbl,cheton/cnc,cheton/cnc.js,cheton/piduino-grbl,cheton/cnc,cheton/cnc.js,cncjs/cncjs,cheton/cnc,cncjs/cncjs