add preceding button press (line 2). Without this, the new firmware only processes on start/stop per execution, effectively generating video and pause, each for same length (sum of sleeps).
added default time (so users are not forced to edit)
moved pause sleep to beginning. allows for startup and file write. increased reliability.
reduced default pause to 1 sec. minimum reliable value.
suggest updating troubleshooting to include final CR (empty line at EOF). Will not execute without it.