Tibo 0 Posted August 7, 2014 Share Posted August 7, 2014 [Work In Progress] Hello everyone, I made a project a couple of months ago that could interests the community. This is a SIM900 module based Machine to Machine shield for MSP430G2 Launchpad. Background and context : Approching the end of courses at university and seeing the internship on the verge to begin, we had an Industrial computing project. Mine was too develop the program for an intrusion alarm using : - GPRS/GSM module by ElecFreaks at 36 Quote Link to post Share on other sites
jpnorair 340 Posted August 8, 2014 Share Posted August 8, 2014 "This prototype works, but not fully tested : I need a good alimention to supply 2 Amps bursts from the SIM900 during active communication." Try a LiPoly with a big capacitor. Tibo 1 Quote Link to post Share on other sites
Tibo 0 Posted August 8, 2014 Author Share Posted August 8, 2014 "This prototype works, but not fully tested : I need a good alimention to supply 2 Amps bursts from the SIM900 during active communication." Try a LiPoly with a big capacitor. I just figured out that I have a free PC power supply, i'll modify it until the end of the week ! Quote Link to post Share on other sites
roadrunner84 466 Posted August 8, 2014 Share Posted August 8, 2014 I just figured out that I have a free PC power supply, i'll modify it until the end of the week ! Where do you need modifications? PC power supplies deliver 3.3V and 5V out of the box, no modifications required! Quote Link to post Share on other sites
Tibo 0 Posted August 8, 2014 Author Share Posted August 8, 2014 Where do you need modifications? PC power supplies deliver 3.3V and 5V out of the box, no modifications required! Don't worry, I thought to modify it as "lab power supply" with connectors, but don't have metal drill finally. Quote Link to post Share on other sites
username 198 Posted August 8, 2014 Share Posted August 8, 2014 Best of luck with your project mate! Looks pretty neat and i've always wanted to do a personal GSM/CMDA project XD. Do you by chance have a link to info regarding that simple phone you showed a picture of? Quote Link to post Share on other sites
roadrunner84 466 Posted August 18, 2014 Share Posted August 18, 2014 Don't worry, I thought to modify it as "lab power supply" with connectors, but don't have metal drill finally. Make sure not to leave any metal chips inside the PSU case, those can cause a nasty fire or smoke cloud! Quote Link to post Share on other sites
Tibo 0 Posted August 19, 2014 Author Share Posted August 19, 2014 Best of luck with your project mate! Looks pretty neat and i've always wanted to do a personal GSM/CMDA project XD. Do you by chance have a link to info regarding that simple phone you showed a picture of? I have one but it's only an overview about projects of students in the lab and files are not shared but anyway : http://ietk.feri.um.si/projekti/studentski-projekti/ Quote Link to post Share on other sites
Tibo 0 Posted August 19, 2014 Author Share Posted August 19, 2014 Make sure not to leave any metal chips inside the PSU case, those can cause a nasty fire or smoke cloud! Sir, yes sir Quote Link to post Share on other sites
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