Electrobot SIMCom SIM900A Mini V3.8.2 5V Wireless Data Transmission Electronic Components Electronic Hobby Kit

SIM900A Modem is built with Dual Band GSM/GPRS based SIM900A modem from SIMCOM. It works on frequencies 900/ 1800 MHz. SIM900A can search these two bands automatically. The frequency bands can also be set by AT Commands. The baud rate is configurable from 1200-115200 through AT command. The GSM/GPRS Modem is having internal TCP/IP stack to enable you to connect with internet via GPRS. SIM900A is an ultra compact and reliable wireless module. This is a complete GSM/GPRS module in a SMT type and designed with a very powerful single-chip processor integrating AMR926EJ-S core, allowing you to benefit from small dimensions and cost-effective solutions. Specification: Quad-Band 850/900/1800/1900 MHz GPRS multi-slot class 10/8GPRS mobile station class B Compliant to GSM phase 2/2+ Dimensions: 24*24*3 mm Weight: 3.4g Control via AT commands (GSM 07.07 ,07.05 and SIMCOM enhanced AT Commands) Supply voltage range : 5V Low power consumption: 1.5mA (sleep mode) Operation temperature: -40°C to +85 ° The onboard two set power supply interface VCC 5V power supply, VCC 3.5-4.5V power supply, optional power on self starting (default) and control start. 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. The serial port circuit: support for 3.3V single chip microcomputer. TTL serial port support. The SIM card circuit to increase the SMF05C ESD chip. PCB display screen printing mark: each interface, convenient development two times, the SIM900/A hardware is completely follow the design when the design manual.