Friday, March 07, 2008

Lost My SIM

Well, I've been quiet for awhile - lost my "free development SIM" as part of Cingular's reorg into AT&T. Thus my collection of PLC with free demo access are off-line. Is interesting to support cellular without a SIM ... not that my boss is ignoring this, but there are 'plans in the works' which involve several companies ... plans which just keep moving out.

However, I am working on Cellular gateways with intelligence now. Goal is to allow a Modbus client/master to come in once per day and upload time-stamped logs; plus if certain events occur use Modbus to call for help.

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