How to Initialise REB21R gps module. | Microcontroller › 8051 › How to Initialise REB21R gps module. This topic has 1 reply, 2 voices, and was last updated 9 years, 9 months ago by SHAH DISHANT H.. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts July 11, 2014 at 7:17 am #3145 nikhilParticipant plz help me, how to initialise royalteks REB21R gps module. July 14, 2014 at 3:54 pm #11901 SHAH DISHANT H.Participant Hi, First we have to read its datasheet. Do you have its datasheet?? Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In