Electric Imp’s Modbus support is delivered through the following four libraries:
This library creates and parses Modbus Protocol Data Unit (PDU). This library is a prerequisite for the ModbusSerialMaster and ModbusTCPMaster libraries.
This library allows an imp to communicate with other devices via Modbus-RS485 or Modbus-RS232 protocol.
This library empowers an imp to communicate with a Modbus Master via the RS485 or RS232 protocol.
This library enables an imp to communicate with other Modbus devices via TCP/IP.
The Modbus libraries are licensed under the MIT License.