I am using FLiP and Blockly and want to interface to a weighing balance. I could use the Serial Protocols in Blockly and wire up pins on the FLiP to a serial cable. However, I wonder why I can't use the USB port on the FLiP which is normally connected to the PC for programming (and use a USB port on the balance or a USB-Serial converter)? Surely this is possible. It would be nice to have Blockly blocks that enabled this?