Mini SIM900A Ultimate GSM Sim 900A Module Call SMS GPRS for Arduino

Detail Mini SIM900A Ultimate GSM Sim 900A Module Call SMS GPRS for Arduino

he studio launched an enhanced version of the fourth edition of SIM900A module, has been released, this module without positioning, on-board antenna, can send and receive SMS, GPRS data, transparent transmission, a variety of packages available, free shipping free shipping! ! Pure selling at a loss! ! ! Large dwell

Module interface and module configuration is as follows:

Onboard a giant tantalum, copper antenna, automatic power circuit, circuit card replacements charged, the headset microphone input and output, the sleep circuit, reset circuit.

About Power

5V version: (Sim900A Ver 5.1) -> Yang sekarang anda beli
This module supply range 4.5V ~ 5.5V, you can use USB3.0 or 5V switching power supply module for GSM, but remember, do not be greater than 5.5V, otherwise it will burn! ! !

4.2V version: (Sim900A Mini Ver.4)
This module supply range 3.5V ~ 4.8V, the module can be powered by a lithium battery to, but remember, do not be greater than 4.8V, otherwise it will burn! ! !

About Serial

This module is TTL level interface, can be directly connected to the MCU, ARM, without conversion devices, and computer links need USB to TTL module to communicate, not with RS232, RS485 and other serial link, the module will burn! !

About Power:

Shutdown Current: 4mA (reset pin GND connection under circumstances)
Working Current: 50mA (average)
Standby current: 20mA (transition 0 ~ 20ma)

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