SKU: 36836715347

SIM900A SIM 900A V4.0 Kit Wireless Extension Module GSMGPRS Board Antenna Tested Worldwide

Sale price$14.40 Regular price$16.00
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Description

SIM900A SIM 900A V4.0 Kit Wireless Extension Module GSMGPRS Board Antenna Tested WorldwideThe SIM card circuit to increase the SMF05C ESD chip. Antenna circuit: guarantee short and straight, so as to ensure the signal strength. PCB display screen printing mark: each interface, convenient development two times, the SIM900 A hardware is completely follow the design when the design manual. Two power supply interface: VCC5, 5V DC above 1A. Computer 5V power supply can be early computer USB. DC long data circuit over larger recommended 5V1A.

The SIM card circuit to increase the SMF05C ESD chip.
Antenna circuit: guarantee short and straight, so as to ensure the signal strength.
PCB display screen printing mark: each interface, convenient development two times, the SIM900/A hardware is completely follow the design when the design manual.
Two power supply interface: VCC5, 5V DC above 1A. Computer 5V power supply can be early computer USB. DC long data circuit over larger recommended 5V1A. VCC4, 3.5--4.5V power supply, ibid., suitable for lithium battery.
A TTL level, compatible with 3.3V and 5V.
The two antenna interface, the default SMA straight head, connector for IPXmini antenna.
One way of speech interface, the way Mike interface.
The control interface of each pin description:
GND - GND
SIMR SIM900A RXD, TTL level, can not be directly connected to the 232 level
SIMT SIM900A TXD, TTL level, can not be directly connected to the 232 level
RST - SIM900A reset, active low
VCC_MCU when the SIM900A module and 5V TTL level communication, this pin is connected to DC 5V; when the level of communication of SIM900A and 3.3V TTL, this pin is connected to DC 3.3V.
Onboard Resources:
Serial port circuit(with protection)
Antenna interface circuit(SMA bend female port)
SIM card circuit(flip SIM slot)
4*3.5 fixture hole 4pcs
SIM900A serial port output terminal
Dimensions & Weight: 5.6 cm x 4.9 cm x 2.8 cm/23 g

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Exchange/Return Notes
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SKU: 36836715347

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Michael
Lake Worth, US
★★★★★ 5
Good product
Size: 1.5 Ounce (Pack of 5)
Fine transaction
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Reviewed in the United States on February 16, 2026
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Alice
Carnegie, US
★★★★★ 5
Mouth moistener
Size: 1.5 Ounce (Pack of 5)
This is a good deal. I use it all the time.
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Reviewed in the United States on March 19, 2026
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tina
Fort Morgan, US
★★★★★ 5
Really works!
Size: 1.5 Ounce (Pack of 5)
The best brand out there!
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Reviewed in the United States on March 30, 2026
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E.J.
Phoenix, US
★★★★★ 4
Helpful but pricey
Size: 1.5 Ounce (Pack of 5)
This is a helpful product. Too bad it’s so pricey though.
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Reviewed in the United States on February 16, 2026
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Vdubya
Charlottesville, US
★★★★★ 5
Very helpful
Size: 1.5 Ounce (Pack of 5)
My husband had throat cancer approximately 5 years ago. Treated with chemo and radiation. The radiation burned his saliva glands. This really helps him keep moisture in his mouth. I have it on an auto delivery every 6 weeks (pack of 6)
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Reviewed in the United States on May 30, 2026

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