tailieunhanh - Linux smart homes for dummies - part 9

Ngày nay, Linux đã trở thành một đối thủ cạnh tranh lớn về lĩnh vực hệ điều hành trong các dòng điện thoại thông minh (smartphone), các thiết bị PDA (personal digital assistant) và là một lựa chọn thay thế cho sự độc quyền của Windows CE và Palm OS. | Chapter 14 Going Wireless with X10 251 1 Wireless remotes UR19A Wireless remote KR19A SlimFire Wireless keychain remote KR22A Wireless credit card remote Wireless kits CK18A X10 s wireless kit X10 is now supporting the CM15A and has discontinued the CM17A MR26A and CM19A controllers computer interfaces . The CM15A is too new to have software available for Linux. The Linux community doesn t have the details to program the new device yet. But not to worry There are plenty of places on the Internet where you can purchase these devices. And the X10 devices are very popular with online auctions. I did a search and found several CM17As still available and I expect that they will be available for quite a while to come. If you can try to get the CM18A kit because it s usually a better deal than the CM17A alone. The kit comes with the CM17A Firecracker Palmpad Remote a lamp module and a TM751 wireless transceiver. The CM17A is an X10 wireless transmitter that isn t limited to a single house code as are the wireless remotes . It can send to all 16 house codes and all 16 unit codes for a total of 256 unique X10 addresses . The TM751 transceiver has a built-in module for controlling appliances. This module can be controlled only by wireless signals. If you d like a wireless transceiver that can accept both the power line and wireless commands the RR501 transceiver is probably a better choice than the TM751. Both the TM751 and the RR501 translate the wireless command to a PLC command so that other modules can also be controlled. Both transceivers are limited to a single house code. This means that if the CM17A transmits an X10 command for J1 house code J unit code 1 a wireless transceiver with a house code set for A won t translate the command for J onto the power line. But it can translate any X10 command with an A house code. Gathering the Toots In this chapter I show you how to use the CM17A a wireless X10 computer interface to send X10 commands from your computer to X10 .