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Diffstat (limited to 'Projects/RelayBoard/RelayBoard.txt')
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diff --git a/Projects/RelayBoard/RelayBoard.txt b/Projects/RelayBoard/RelayBoard.txt new file mode 100644 index 000000000..4b190dfe3 --- /dev/null +++ b/Projects/RelayBoard/RelayBoard.txt @@ -0,0 +1,106 @@ +/** \file + * + * This file contains special DoxyGen information for the generation of the main page and other special + * documentation pages. It is not a project source file. + */ + +/** \mainpage OB's Quad-Relay outlet control using a Teensy2++ + * + * \section Sec_Compat Project Compatibility: + * + * The following list indicates what microcontrollers are compatible with this project. + * + * \li AT90USB1286 + * + * \section Sec_Info USB Information: + * + * The following table gives a rundown of the USB utilization of this project. + * + * <table> + * <tr> + * <td><b>USB Mode:</b></td> + * <td>Device</td> + * </tr> + * <tr> + * <td><b>USB Class:</b></td> + * <td>None</td> + * </tr> + * <tr> + * <td><b>USB Subclass:</b></td> + * <td>None</td> + * </tr> + * <tr> + * <td><b>Relevant Standards:</b></td> + * <td>USB Standards</td> + * </tr> + * <tr> + * <td><b>Supported USB Speeds:</b></td> + * <td>Low Speed Mode, Full Speed Mode</td> + * </tr> + * </table> + * + * \section Sec_Description Project Description: + * + * Firmware for a Teensy2++ AVR-based miniboard to control four relays, using the + * same protocol used by the commercially available Silver Shield PM power outlets + * ( http://sourceforge.net/projects/sispmctl ) sold for some time. Because this + * project mimics the original device, it can be controlled using the "sismpctl" + * package included in many Linux distributions - including router-orientated + * versions such as OpenWRT - to control the board's relays. + * + * Relays 1 to 4 are respectively wired to pins C4, C5, C6 and C7 of the Teensy++ V2, + * which are the PORTC bits 4 to 7 of the AT90USB1286. The relays MUST be wired through + * a transistor, and a diode must be added in antiparallel on the relay's coil pins to + * protect the transistor from back EMF generated from the relay when the coil is turned off. + * The transistor base pin is wired to the Teensy data port through a 10K resistor. A + * LED may be also be added as a relay status indicator on each channel. + * + * The Relay coil will be driven by the transistor, but the power will come from + * the 5V from the PC's USB port: Be careful in choosing the relay to avoid overloading + * the PC, as the maximum current used MUST remains under ~450mA @ 5V. + * + * The author's tested relays are 2 Finder 32.21.7.005.2000, coil il 125ohm, which can + * handle 5A @ 250VAC. Be careful to use proper isolation if high voltages are manipulated. + * The author used Hotglue to isolate all parts of the PCB in contact with high voltage. + * + * See <a>http://www.pjrc.com/teensy/</a> for the Teensy2++ website. + * + * <table> + * <tr> + * <td><b>Signal:</b></td> + * <td><b>AVR Port:</b></td> + * </tr> + * <tr> + * <td>Relay 1</td> + * <td>PORTC, Pin 4</td> + * </tr> + * <tr> + * <td>Relay 2</td> + * <td>PORTC, Pin 5</td> + * </tr> + * <tr> + * <td>Relay 3</td> + * <td>PORTC, Pin 6</td> + * </tr> + * <tr> + * <td>Relay 4</td> + * <td>PORTC, Pin 7</td> + * </tr> + * <tr> + * <td>Teensy2++ Yellow Led</td> + * <td>PORTD, pin 6</td> + * </tr> + * </table> + * + * \section Sec_Options Project Options + * + * The following defines can be found in this project, which can control the project behaviour when defined, or changed in value. + * + * <table> + * <tr> + * <td> + * None + * </td> + * </tr> + * </table> + */ |