NEW Sim900A Mini Wireless Data Transfer Module /SMS/Development Board/GSM/G

Description

Product Description
1. Serial port circuit: TVS and magnetic bead protection devices are used to protect the board, so that the board will be damaged by surges and high voltages. SIM card circuit: add SMF05C electrostatic discharge chip. Antenna circuit: Keep it short and straight, so as to ensure the signal strength.
2. PCB display: each interface is marked by silk screen, which is convenient for secondary development, and the design completely follows the SIM900A hardware design manual.
3. All the way 5V supply interface: We have made protection, even if the connection is reversed, it will burn the board. The computer USB supply is sufficient for the initial debugging of the computer; long-term data transmission requires a large amount of electricity, and we recommend a DC above 1A.
4. One TTL interface: support 3.3V single-chip microcomputer and 5V single-chip microcomputer. In other words, it supports 51 types of 5V microcontrollers and STM32 microcontrollers.
5. Two antenna interfaces: SMA antenna interface, IPX MINI antenna interface (no welding). One 232 level interface: that means you can directly connect the module to the computer through a 232---USB serial line. It can also be connected to a computer via USB-TTL, depending on personal accessories.
Model: SIM900A
requirements: 5V
size:1 x 2cm
Material:abs
colour:Black+blue
Package Contents:
1 x sim900a module
1 x GSM module antenna
1 x Module cord
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Shipping
This product is warehoused in California, USA.
We will be shipping out the item within
3
business day.
USPS is our preferred carrier. The item usually arrives within
2-9 business days
after shipped.
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