Is EFCOM PRO v1.0 compatible with pic18f4550 | Microcontroller › PIC › Is EFCOM PRO v1.0 compatible with pic18f4550 This topic has 1 reply, 1 voice, and was last updated 9 years, 6 months ago by Clive. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts February 6, 2015 at 12:39 pm #3433 CliveParticipant l purchased an EFCOM PRO GSM module which l need to interface with a pic18f4550 to send an SMS in my project. l dont intend on using an Arduino board. Is it possible. Thank you in advance February 25, 2015 at 10:22 am #12645 CliveParticipant Problem solved. They are compatible 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