SIM800C GSM GPRS Module 5V/3.3V TTL STM32 C51 with Bluetooth and TTS for Arduino
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SIM800C GSM GPRS Module 5V/3.3V TTL STM32 C51 with Bluetooth and TTS for Arduino

$12.68
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Description:Power input: DC5V or received by a lithium battery input VBAT and GND.Supports MCU level: 5V / 3.3V for TTL logic(Such as the common 51 and the arduino is 5v, STM32 is the 3.3v)Antenna use: IPEX antenna interfaces, you can use the version PCB antenna or antenna IPEX-SMA- peppers Pin Description:5V: power supply pin, the only input DC5V, used to power the board.V_TTL: access control board microcontroller core target voltage of 5V / 3.3V (according to its own microcontroller is much to distinguish kernel v), this pin is used to convert the GSM module board TXD and RXD for the corresponding TTL logic.GND: power supply groundTXD: send pin serial port module, TTL level (not directly connected to RS232 level)RXD: receive pin serial port module, TTL level (not directly connected to RS232 level)DTR: Data Terminal ReadySPKP: Core Audio output pinSPKN: Core Audio output pinMICN: Core Audio inputMICP: Core Audio inputRI: Ring core pin tipsVRTC: RTC pin external batteryGND: power supply groundPWR: This pin can turn down or turn off the moduleGND: power supply groundVBAT: lithium battery input pin, 3.3v-4.4vPacakage Included:1*SIM800C GSM GPRS Module

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