Omron PLC USB to 485 Converter and Siemens PLC

This application about how to Omron PLC USB to 485 converter and communication with Siemens PLC using Arduino, USB Host Module and MAX 485 C...

GSM SIM Card for External Data Storage with Allen-Bradley PLC and Arduino UNO plus USB Host Shield

The application of a simple way to use external data storage using the GSM SIM card through 250 phonebook memory. in the phone book there is...