![]() ![]() Therefore, if we use voltages below 3.4, either the SIM800l will not work or it will work but not all its features are responding (e.g unable to read SIM card). TXD: Serial communication (Transfer Pin)įrom the specification of SIM800L we would able to find out that is:.RXD: Serial communication (Receiver Pin).One row contains all of the pins required to interface with Arduino, the other row has all things for interface. There are 12 total pins on the small SIM800L two parallel rows of six headers. It communicates with microcontroller via UART port, supports SIMCOM enhanced AT Commands. ![]() With power saving technique, the current consumption is as low as 1mA in sleep mode. The board features compact size and low current consumption. Mini GSM / GPRS breakout board is based on SIM800L module, supports quad-band GSM/GPRS network, available for GPRS and SMS message data remote transmission. ![]() How to get started with small SIM800l GSM module Introduction ![]()
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