Preț redus! Modul SIM900A GSM GPRS SIM900A V4,0 Wireless cu antena Mărește

Modul SIM900A GSM GPRS SIM900A V4,0 Wireless cu antena

sim900a

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Modul SIM900A GSM GPRS SIM900A V4,0 Wireless cu antena

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83,00 lei

-7,00 lei

90,00 lei

Informații

Interfața cu două moduri de alimentare: VCC5, 5V DC 1A poate fi dintr-un USB.

DC circuit de date de mult timp de peste 5V1A mai mari recomandat. VCC4, 3.5--4.5V de alimentare cu energie, ibid., Potrivit pentru baterie cu litiu.
Nivel TTL, compatibil cu 3.3V și 5V.


GND - GND
Simr SIM900A RXD, la nivel TTL, nu poate fi conectat direct la nivelul 232
SIMT SIM900A TXD, la nivel TTL, nu poate fi conectat direct la nivelul 232
RST - resetarea SIM900A
VCC_MCU când modulul SIM900A și 5V comunicare la nivel TTL, acest PIN-ul este conectat la 5V DC; atunci când nivelul de comunicare al SIM900A și 3.3V TTL, acest PIN este conectat la DC 3.3V.
VCC5 ---- intrare DC 5V.
VCC4 ------ intrare DC3.5--4.5
Frecvente suportate: 1800 so 1900 ( utilizate de Vodafone si telekom) 


Specificații:
Dimensiune: 49mm x 47mm
Greutate neta: 28g
Greutate: 38g
 
Pachetul include:
1 x SIM900A V4.0
1x antenă

Features:
The onboard two set power supply interface VCC5 5V power supply, VCC4 interface, 3.5--4.5V power supply, optional power on self starting (default) and control start.
The onboard SMA (default) and IPXmini antenna interface, SIM900A interface reserved reset.
The size of the module is 49*50, all the new and original device.
The computer can give early computer debugging USB module power supply, a very large amount of data under the condition of the recommended current more than 1A. Standby dozens of MA data can be set to provide dormancy, dormancy of 10MA low power. Support 2, mobile phone 3,4G card.
The serial port circuit: support for 3.3V single chip microcomputer. TTL serial port support
3.3 and 5V single chip microcomputer.
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.
Control pin all leads.
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.
VCC5 ----DC 5V input.
VCC4------DC3.5--4.5 input

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