Wireless control of various devices with TP-LINK TL-MR3020 running OpenWRT
This simple hack employs TP-Link TL-MR3020 router running OpenWRT and a PCB from a cheap USB keyboard. Web page uses CGI to invoke simple shell script which switches keyboard LEDs on and off. Relays controlling real loads - an incandescent lamp and an electric door lock - are connected to the keyboard PCB instead of the LEDs. The script and the web page are available at http://etherelay.googlecode.com. View schematics and description (Russian) at http://habrahabr.ru/post/151982/.
This simple hack employs TP-Link TL-MR3020 router running OpenWRT and a PCB from a cheap USB keyboard. Web page uses CGI to invoke simple shell script which switches keyboard LEDs on and off. Relays controlling real loads - an incandescent lamp and an electric door lock - are connected to the keyboard PCB instead of the LEDs. The script and the web page are available at http://etherelay.googlecode.com. View schematics and description (Russian) at http://habrahabr.ru/post/151982/.