Difference between SIM800 and SIM900 GSM modules
SIM800 vs SIM900 GSM modules There exist multiple versions of these modules, SIM900 comes in the form of full version Quad band SIM900 & dual band version SIM900A, SIM900D SIM800 comes in the form of full version Quad band SIM800 & stripped down compact size version SIM800C. There are other SIM800 & SIM900 versions but very […]