0 Replies Latest reply: Apr 18, 2014 4:36 AM by Joshua Simi RSS

TI Stellaris plus AT Modem project to connect to Exosite

Joshua Simi Newbie
Visibility: Open to anyone

This project demonstrates how to use a Stellaris Development Kit to send and receive data to/from the cloud via Exosite's Cloud Data Platform. The communication with the cloud is accomplished over HTTP with the Janus-RC GSM864Q GPRS modem. The project sends the AT command over a UART to the Janus modem. The project functionality writes a 'Ping' value to the cloud and reads a value 'interval' from the cloud. Cloud information is shown on the on-board LCD screen. For some development kits with enough screen size, an option to read a public temperature data source is also available to display on the screen.

The source code in this folder is a project called "Stellaris ATDT Cloud" which has been verified with Code Composer Studio 4 and IAR for the following TI Stellaris Development Kits:

· EK-LM3S6965 (with addition of RS232 Transceiver)

· EK-LM3S1968 (with addition of RS232 Transceiver)

· RDK-IDM-L35

Note: This code can be used with any of the Stellaris Development kits that have a UART accessible. Some modification may be required depending on the UART used and the display/LCD available. Also, some kits have RS232 signal levels on UARTs (like the RDK-IDM-L35) and others are only TTL. For TTL UART signals, an RS232 transceiver will need to be connected to properly interface with the cellular modem which accepts an RS232 serial connection. For more information about this project visit Exosite Github Profile.