After giving power to the module how can I be able to understand whether the module is properly powered up and ready for issuing AT commands? Is there any pin where In can connect LED indicator?
I did not get SIM300cz module in Proteus and Eagle to make the circuit to share here. Please let me know if there is nay way to draw schematic of SIM300cz.
As per the schematic shared in the earlier post, I connect the SIM properly with the respective pins. Power connection in VBAT and GND pin. PWRKEY for switch on the device. And RXD, TXD, GND for serial data transfer. Is there any other connection needed to make it work?