Link to make a button text out

The link to add to a button to make it dial out is a href=“tel:0123456789” /a (minus the chevrons)
Is there a similarly to make it text out?

i have never tried it (no need yet):
<a href="sms:+3581234567">Send SMS to us </a>
should work.

Duh! Forgot sms! It works (not on Desktop but on iPad so far tested).
I wanted to try three buttons for the customers - and most prefer texting these days. One for the phone, one for the test, one for a google map. Haven’t got the last one to work yet inside a stack!