Brightsign 40_input RS232 Interface

40 input RS232 (Serial Interface Board)

Features:

• Small footprint (2.8 x 3.5 inches)
• 40 inputs (No Outputs)
• Terminal blocks for all input connections
• Can connect Directly to the BrightSign (attaching screws ordered separately)
• 5V (BrightSign) or 5 volts external  for standard RS232 connections)
• On board LED's to indicate Power and Processor running.
• RS232 protocol: 38,400 baud, N,8,1 (Standard RS232 Cable)

Use a standard RS232 cable.  Null-Modem cables have pins 2-3 swapped

Operation: (Firmware 3.2)   When an input is grounded (set low), a string is sent out that represents the input (BrightAuthor compatible).  If multiple inputs are activated, successive inputs are reported.  I.E. If input 1 is closed, the "1" is reported, if input 9 closes also, then the new input "9" is reported. When all inputs go high, then a zero is reported (switches have all been released).

The strings are:

• 0  =  "0",13
• 1  =  "1",13 (character "1" followed by a carriage return of chr(13))
• 2  =  "2",13
• 3  =  "3",13
• 4  =  "4",13
• 5  =  "5",13
• 6  =  "6",13
• 7  =  "7",13
• 8  =  "8",13
• 9  =  "9",13
• 10 = "10",13 ("1" followed by "0" followed by a carriage return of chr(13))
• 11 = "11",13
• 12 = "12",13
• 13 = "13",13
• 14 = "14",13
• 15 = "15",13
• 16 = "16",13
• 17 = "17",13
• 18 = "18",13
• 19 = "19",13
• 20 = "20",13
• 21 = "21",13
• 22 = "22",13
• 23 = "23",13
• 24 = "24",13
• 25 = "25",13
• 26 = "26",13
• 27 = "27",13
• 28 = "28",13
• 29 = "29",13
• 30 = "30",13
• 31 = "31",13
• 32 = "32",13
• 33 = "33",13
• 34 = "34",13
• 35 = "35",13
• 36 = "36",13
• 37 = "37",13
• 38 = "38",13
• 39 = "39",13
• 40 = "40",13

Contact HMS Electronics if you have need of other than 'strings' to be sent in response to inputs.

RS232_Slides.BRS (BrightScript File)

This script written for the 16 input board in 'ascii' mode and will work for inputs 1-16 on the 40 input board.  It will play a slide to match the input number (slides 1 through 16). 

Un-Zip this file to the Root Directory of your SD card and rename the file RS232_Slides.BRS to autorun.brs.  All of the slides should be in the 'Slides' sub-directory.

Author: Richard Harkey
Revised: August 27, 2024