How to build a GSM module | Electronics › Electronics › How to build a GSM module This topic has 2 replies, 2 voices, and was last updated 11 years, 5 months ago by Jame. Viewing 3 posts - 1 through 3 (of 3 total) Author Posts April 10, 2013 at 10:06 am #2255 JameParticipant Does anyone know about how to build a GSM module with a SIM card holder? April 11, 2013 at 9:52 am #9454 Jason JordonParticipant Hi, Constructing a GSM module is a very tedious task and I would recommed you to purchase one. Google SIM300DZ, it is popular GSM module and can be bought from any local or internet based electronic store. April 11, 2013 at 11:10 am #9463 JameParticipant I bought a gsm modem and I am trying to connect power supply to it. How do i do it? is it by using a dc power supply? Author Posts Viewing 3 posts - 1 through 3 (of 3 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In