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<span style="font-weight:bold;font-size:16px;">Optimal Smallest SIM800L GPRS GSM Breakout Module Quad-Band TTL Serial Port Microsim Card Core Board Durable</span>
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<span style="font-size:18px;"><div>The serial port is a TTL serial port and can be directly linked to the microcontroller. No need for MAX232, the module automatically turns on when powered on and automatically searches for networks.<br />Onboard one signal indicator light (slow flashing when signal is present, fast flashing when no signal is present)<br />Small size GSM module<br />Full machine patch processing, reflow soldering, stable performance<br />The power supply can be directly powered by a potassium battery or 5V.<br /><br />Chip: SIM800L<br />Working Voltage: 3.7~4.2V<br />Quad-band 850/900/1800/1900MHz<br />Connect onto any global GSM network with any 2G SIM<br />Make and receive voice calls using a headset or an external 8 speaker and electret microphone.<br />Send and receive SMS messages.<br />Send and receive GPRS data (TCP/IP, HTTP, etc.)<br />Scan and receive FM radio broadcasts.<br />Lead out buzzer and vibrational motor control port.<br />Material: plastic+metal<br />colour: As Shown<br /><br />Package Contents: <br />1 x GSM Module<br />1 x Antenna<br /><br />Only the above package content, other products are not included.<br />Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.</div></span>
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