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SIM800C GSM GPRS Module 5V/3.3V TTL Development Board IPEX With Bluetooth And TTS For Arduino STM32 C51 - Electro Labs
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 t