Roku Brightsign HD410, HD810 & HD10101 IO Board

w/Triac (4 inputs, 8 outputs+triac for Lighting Control)

!Preliminary: Board design complete, not in production!

If you would like to get this board, order it and we will make them.  Allow 4-6 weeks delivery!

ROKU_HDTRIAC BOARD     Correct Picture to be updated when the board is put into production.

                                                                              (ROKU_GPT BOARD SHOWN)

ROKU_HDT_240 (for 240 volt operation) 

Features:

• small footprint (4.0 x 4.0 inches)
• 8 Medium Current Drivers (twin driver chips)
• Terminal blocks for all I/O connections
• Modes of operation selectable on board
• 6V, 12V or 24V operation (requires external power supply)
• on board LEDs to indicate Roku Power and Processor running.

Refer to the Schematic:

This board has a triac for turning on/off 120VAC (or 240VAC) line power to a load (Lamps or other AC Line operated products).  Plus it has drivers to drive up to 8 outputs plus the triac.  Maximum current is 8 amps for the triac circuit.  It is up to the user to make line and load connections and to prevent greater than 10 amps of current (external fuse should be used).

This board has No Agency Approvals.  It cannot be utilized where Agency Approvals are required (CSA, U.L., CE and such)

Disregard below here as the firmware for this board is not yet made.

The modes of operations are as follows:

Mode 0: The 6 LED outputs of the Brightsign are directled to outputs 1-6 (same as the LED drives)

Note: The following modes will likely require scripting.

Mode_1:  8 outputs Latch mode as described below

Mode 2:  8 outputs with Flashing capability

Mode 8   Test Mode, the 8 outputs are cycled on 1 at a time

8 Outputs:  The Roku  LED4 aand LED5 signals are used as a latch signal (change of state).  When the LED4 goes high the signals LED0-LED3 pass to the outputs Output0-Output3.  When the LED4 signal goes low, the the signals LED0-LED3 are latched to the Outputs 0-3.  When the LED5 signal goes High,  the signals LED0-LED3 pass to Outputs 4-7.  When the LED5 signals goes low, the signals LED0-LED3 are latched to Outputs 5-8. 

Flashing Capability: Mode2 is provided so that flashing capability can be accessed.  Basically, the GPIO board records bits to be flashed.  To put the board in 'record' mode, both bits LED4 and LED5 have to be high at the same time.  Then when LED4 goes low, the signals LED0-LED3 are latched in as Flash Enable bits for the low order outputs 0-3.  IF LED5 goes low (while LED4 is low), the GPIO board exits record mode.  Likewise, if both LED4 and LED5 signals are high and then LED5 signal goes low, then the signals LED0-LED3 are latched in as flashing enable for the high order bits 4-7 (Outputs 4-7)

• Notes:
• The flash enable bits have to be set high to enable flashing.
• Flashing occurs at 2.5 hz when the flash enable bit has been set and then the output is enabled 
• Custom modes of operation can be requested.

HMS_ROKU_GPIO.BAS BrightScript program for testing the Roku_GPIO board.

Put this file on the 'Compact Flash Card, then run this scrip from the terminal interface or rename it autorun.bas.

If inputs 8 and 9 are not pulled low, then the script runs in mode 0.  If either of the switches 8 or 9 are pulled low, then the script assumes mode1 or 2 (8 output mode).  Mode2 (Flash record and 8 output) is controlled by inputs 8 and 9.  If input 8 is low, then the inputs 0-7 are output on outputs 0-7.  If input 9 is low, then the script is running the 'record mode' portion of mode2.  Any inputs that are low will be recorded as flash enable bits when input 9 goes high.  Return to the 8 output mode if input 8 is low.

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Updated: April 23, 2009