Very basic script... adjust the EMA to 13 for stocks, and less volatile assets. 26 for crypto, and anything highly volatile.
When the Daily Low line (bottom yellow/orange line) dips hard, and finds support for 3+ bars somewhere, this is a sign of a trend reversal. For a solid confirmation, wait for the Super Average and EMA to spike downwards as well. All of this can also be seen as reversal at the top of a trend, just upturned.
The 2 Daily lines (2 yellow/orange lines) act as support for the price to bounce off of. Fine tuning is required to get these really smooth, but it's a simple enough idea.
Edit: Screwed up the EMA in my posted example. Should be 26.