Helix Main Board
Assembly and Setup Manual
21
Comments, Questions or Concerns contact the developer at:
Note: Unused holes to the left (ignore the Audio Jack)
Picture 10
MP3 Orientation
Configuration of the MicroSD Card
The Helix requires a MicroSD card. It must be formatted with either FAT16 or FAT32. However the card does not
need to be very large at all. The approximate size of the different files is:
File
Size
Helix Firmware
32 kB
Helix Configuration File
<10 kB
Helix Show File
<10 kB
Helix Playlist File
<10 kB
Helix Schedule
<10 kB
MP3 File
~1 MB/Minute
Helix Sequence File at max
channel cnt (1,568 ch)
~1.8 MB/Minute at 50
mS event period
Therefore for a 20 minute show the total memory required is approximately: 72 kB + 20 * 1 MB + 20 * 1.8MB = 56
MB. Even if there are two hours of MP3s for the Playlist the total size would only be 176 MB. So any MicroSD card
>= 256 MB that you can get will work.
The MicroSD card needs to be preloaded with several files in order for the Helix to operate properly. At a minimum
every Main Board needs:
Helix Firmware (FIRMWARE.BIN)
Helix Configuration File (CONFIG.HLX)
Helix Sequence File(s) (*.SEQ)