General :: Preventing Screen Blank In Busybox(embedded) On A KERN Board?

I'm trying to run a shell script on a kern board (av1100) that shows some text output on the attached screen. The big problem is that the screen goes to blank in like 2 minutes.I'd just like to have the script showing it's output while the thing is on.Isn't there a command to stop the screen from going to blank?p.s. there is no bash available, just #!/bin/sh

Code:
#!/bin/sh
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[code]....