rimpul
Newbie level 5
Hi,
I am using SIM900A gsm module in my project, simcard is not getting registered with the network, during power on when i measure the voltage at SIM_VDD pin it shows 1.33v and suddenly drops zero,and the netlight LED glows faster, but as per the datasheet the voltage at the SIM_VDD pin should be 2.88v constant .
Can any one suggest me what could be the reason for this?
thanks,
Rimpul
I am using SIM900A gsm module in my project, simcard is not getting registered with the network, during power on when i measure the voltage at SIM_VDD pin it shows 1.33v and suddenly drops zero,and the netlight LED glows faster, but as per the datasheet the voltage at the SIM_VDD pin should be 2.88v constant .
Can any one suggest me what could be the reason for this?
thanks,
Rimpul