Jan 4, 2013 #1 M m_nader_m Newbie level 6 Joined Mar 21, 2008 Messages 12 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,345 SIM900 and AVR ( voltage level ) hi all, I use the SIM900 based a ATMEGA32 in 5 volt. TX/RX , RI pins are needed to convert the voltage level? Last edited: Jan 4, 2013
SIM900 and AVR ( voltage level ) hi all, I use the SIM900 based a ATMEGA32 in 5 volt. TX/RX , RI pins are needed to convert the voltage level?
Jan 11, 2013 #2 nandhu015 Advanced Member level 5 Joined Feb 11, 2006 Messages 1,960 Helped 300 Reputation 600 Reaction score 222 Trophy points 1,353 Location India Activity points 9,924 Yes, level conversion is advised..