uMODBUS(m) is primarily intended to link an intelligence device such as a micro-controller or PLC to an Android Phone or Tablet, using the MODBUS protocol over Bluetooth. The intention was to give developers a system that can send and receive MODBUS commands as a master device using the Read Holding Registers function(03) and Preset Single Register function(06). A good explanation of the MODBUS protocol can be found at
The Bluetooth medium was selected as with this a direct device to device serial connection can be made that does not rely on any supporting networks.
MODBUS communications projects can be built up and saved to file so that they can be recalled for later use.