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[[Category:OpenBeacon]] The packets sent by the Blinkenlights OpenBeacon control system is defined by the following C struct. Check out our [https://openbeacon.svn.sourceforge.net/svnroot/openbeacon/trunk/firmware/at91sam7/ OpenBeacon Blinkenlights SVN repository] for more information. <syntaxhighlight lang="c" > #define GAMMA_DEFAULT 200 #define FIFO_DEPTH 256 #define RF_PAYLOAD_SIZE 16 enum { RF_CMD_SET_VALUES, RF_CMD_SET_LAMP_ID, RF_CMD_SET_GAMMA, RF_CMD_WRITE_CONFIG, RF_CMD_SET_JITTER, RF_CMD_SEND_STATISTICS, RF_CMD_SET_DIMMER_DELAY, RF_CMD_SET_DIMMER_CONTROL, RF_CMD_PING, RF_CMD_RESET, RF_CMD_ENTER_UPDATE_MODE = 0x3f }; typedef struct { unsigned short mac; unsigned char wmcu_id; unsigned char cmd; union { unsigned char payload[RF_PAYLOAD_SIZE]; unsigned char dummy[6]; struct { unsigned char id; unsigned char wmcu_id; } PACKED set_lamp_id; struct { unsigned char block; unsigned short val[8]; } PACKED set_gamma; struct { unsigned short jitter; } PACKED set_jitter; struct { unsigned short emi_pulses; unsigned long packet_count; unsigned long pings_lost; unsigned long fw_version; unsigned long tick_count; } PACKED statistics; struct { unsigned short delay; } PACKED set_delay; struct { unsigned char off; } PACKED dimmer_control; struct { unsigned int sequence; } PACKED ping; } PACKED; /* union */ unsigned int sequence; unsigned int crc; } PACKED BRFPacket; </syntaxhighlight lang>

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