OPEN-SOURCE SCRIPT
6 SMA's (fit to BTC) 9,20,30,50,128,200 (exponential optional)

I've been using these for a while trading Bitcoin and I've found them to be the most useful to me. I replaced the 7 you may have seen in the first set with the 9 as I'm seeing it tested across many time frames quite frequently. The least used of the six is the 30 period, but it does have some influence I've found on the large time frames, mainly the weekly.
Open-source script
In true TradingView spirit, the creator of this script has made it open-source, so that traders can review and verify its functionality. Kudos to the author! While you can use it for free, remember that republishing the code is subject to our House Rules.
Disclaimer
The information and publications are not meant to be, and do not constitute, financial, investment, trading, or other types of advice or recommendations supplied or endorsed by TradingView. Read more in the Terms of Use.
Open-source script
In true TradingView spirit, the creator of this script has made it open-source, so that traders can review and verify its functionality. Kudos to the author! While you can use it for free, remember that republishing the code is subject to our House Rules.
Disclaimer
The information and publications are not meant to be, and do not constitute, financial, investment, trading, or other types of advice or recommendations supplied or endorsed by TradingView. Read more in the Terms of Use.