Uart on mkr zero

This link provides datasheet for the module :

https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.uruktech.com/wp-content/uploads/2019/10/GT-38_datasheet.pdf&ved=2ahUKEwi4yK7YhePyAhXN6eAKHasBBo0QFnoECAMQAQ&usg=AOvVaw2BIlpy_JUK-Qilg0AMjYrO