November 23, 2009

Clothes Dryer Status Indicator via INSTEON

Remote clothes dryer status was implemented by interfacing the clothes dryer to an INSTEON SwitchLinc Relay with sense. Perceptive Automation's Indigo home control software is used to control a lamp indicating the dryer status and is used to send an email to the family when the dryer stops. Additional indication is a voice statement from an iMac computer near the home theater system.

Several methods were considered and then it was realized no relays or other interface components would be required if the new V5 INSTEON SwitchLinc Relay with sense was used. This method requires modification to the 110VAC circuits in the 240VAC dryer and should not be attempted by unqualified people. The dryer is a new model with full 5-wire power source. The complete dryer schematic was stored inside the control housing so it was easy to understand the circuit. Hot, neutral and ground were connected to the SwitchLinc. The sense wire was connected to the drum motor supply. An INSTEON "on" is sent when the drum motor starts and an "off" is sent when the drum motor stops.

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