We’ve just got details of a special offer for Automated Home readers. Laser has a limited time discount on Frank McAlinden’s excellent HomeVision IO Expander units. Normally retailing at £46.95, they are now available at just £19.99 including VAT! Read on for the specs.
Used as an input module, it is electrically similar to Port C of the HomeVision and when used as an output module, it is electrically similar to Port A of the HomeVision.
To gain access to the I2C commands in HomeVision, the user must enable the commands as listed in the HV IO Expander documentation below. The document has a sample macro to show how to read an input device and write to an output device.
- 8 digital inputs or
- 8 digital outputs
- Connects to the HomeVision expansion bus
- User configurable address
- Up to 8 may be connected to the HomeVision