2017 New GPS Module, Northbear SIM800 GSM GPRS Module STM32 SIM900A Upgrade Board
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Features
- DC6-24v wide voltage power supply, can be used to facilitate the use of your system power supply. Board high performance DC-DC power circuit, coupled with TVS protection, so that the stability of the system is greatly improved
- Support 3.3 V / 5 V TTL level control, convenient and all kinds of commonly used microcontroller.
- The modules are separately listed in TX/RX/GND, use and convenience
- With standard serial interface, easy to use PC control or debugging
- With headphones and Mike interface, can be convenient to test the GSM voice call function
Description
Description:
With SIM card ESD protection chip, protection of electrostatic SIM card plug when the 6 applications with RTC back-up battery Have NET_STA light, convenient to watch the current SIM800 state. Board size 83mm*54mm Package Include : 1pcs SIM800 GSM GPRS module