xapmcsMultimeter provides an interface to the Radio Shack 220-0812 digital multimeter to provide telemetry of the multimeter readings in the form of LAN messages using xAP protocol. The multimeter provides 26 measurement modes (e.g. AC voltage, DC voltage, ohms, etc.). Each of these, when selected on the meter, is transmitted as the raw reading, the rate of change of the reading, the maximum reading and the minimum reading. The content of these messages can be recorded in a database such as is supported by xapmcsDatabase, or accepted in other automation applications such as Homeseer where event logic can be used to trigger other actions.
xapmcsMultimeter will sense the user selections made on the multimeter and automatically report the measurement being made. It will identify the type of measurement, include measurement units, and scale the value as the meter auto-ranges from nano, micro, kilo, and mega. If a capacitance measurement is being made it will be reported in microFarad units in one device and nanoFarad units in another to ease the data collection capabilty of other applications. Similiar handling is done for amperage and voltage.
xapmcsMultimeter will compute the minimum and maximum readings unless the meter is setup to report only maximum or minimum readings. In this case the maximum and minimum reported by xapmcsMultimeter will be maximum or minimum from the meter. When the multimeter is in this mode xapmcsMultimeter will not report a current reading or a rate of change of the reading.
Version History
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1.0.0.1 PR1 Change display date format to use 24 hrs clock if not USA
Available as http://mcsSprinklers.com/xapmcsMultimeter.zip
xapmcsMultimeter will sense the user selections made on the multimeter and automatically report the measurement being made. It will identify the type of measurement, include measurement units, and scale the value as the meter auto-ranges from nano, micro, kilo, and mega. If a capacitance measurement is being made it will be reported in microFarad units in one device and nanoFarad units in another to ease the data collection capabilty of other applications. Similiar handling is done for amperage and voltage.
xapmcsMultimeter will compute the minimum and maximum readings unless the meter is setup to report only maximum or minimum readings. In this case the maximum and minimum reported by xapmcsMultimeter will be maximum or minimum from the meter. When the multimeter is in this mode xapmcsMultimeter will not report a current reading or a rate of change of the reading.
Version History
---------------
1.0.0.1 PR1 Change display date format to use 24 hrs clock if not USA
Available as http://mcsSprinklers.com/xapmcsMultimeter.zip
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