Default in HIGH state (module in sleep mode, serial communication disabled). RING (not marked on PBC, first from top, square) – LOW state while receiving a call.Module power-on automatically starts, automatically finds the network On-board signal indicator (slow signal flashing, no signal flashing) We will connect the Hardware serial port to the computer to debug and print. The serial port is a TTL serial port, which can be directly linked with the MCU. We will hook up the SIM800l module with Arduino using the Soft Serial library. It communicates with the microcontroller via UART port, supports command including 3GPP TS 27.007, 27.005 and SIMCOM enhanced AT Commands. With the power-saving technique, the current consumption is as low as 1mA in sleep mode. The board features compact size and low current consumption. SIM800L GPRS GSM Module Micro SIM Card Core Board Quad-band TTL Serial Port breakout board is based on available for GPRS and SMS message data remote transmission. SIM800L GPRS GSM Module Micro SIM Card Core Board Quad-band TTL Serial Port
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May 2023
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