{"product_id":"sim900a-v4-0-kit-wireless-extension-module","title":"Sim900A V4.0 Kit Wireless Extension Module","description":"\u003cp\u003eFeatures:\u003cbr\u003e\nThe 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.\u003cbr\u003e\nThe onboard SMA (default) and IPXmini antenna interface, SIM900A interface reserved reset.\u003cbr\u003e\nThe size of the module is 49*50, all the new and original device.\u003cbr\u003e\nThe 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.\u003cbr\u003e\nThe serial port circuit: support for 3.3V single chip microcomputer. TTL serial port support\u003cbr\u003e\n3.3 and 5V single chip microcomputer.\u003cbr\u003e\nThe SIM card circuit to increase the SMF05C ESD chip.\u003cbr\u003e\nAntenna circuit: guarantee short and straight, so as to ensure the signal strength.\u003cbr\u003e\nPCB display screen printing mark: each interface, convenient development two times, the SIM900\/A hardware is completely follow the design when the design manual.\u003cbr\u003e\nTwo 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.\u003cbr\u003e\nControl pin all leads.\u003cbr\u003e\nA TTL level, compatible with 3.3V and 5V.\u003cbr\u003e\nThe two antenna interface, the default SMA straight head, connector for IPXmini antenna.\u003cbr\u003e\nOne way of speech interface, the way Mike interface.\u003cbr\u003e\nThe control interface of each pin description:\u003cbr\u003e\nGND - GND\u003cbr\u003e\nSIMR SIM900A RXD, TTL level, can not be directly connected to the 232 level\u003cbr\u003e\nSIMT SIM900A TXD, TTL level, can not be directly connected to the 232 level\u003cbr\u003e\nRST - SIM900A reset, active low\u003cbr\u003e\nVCC_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.\u003cbr\u003e\nVCC5----DC 5V input.\u003cbr\u003e\nVCC4------DC3.5--4.5 input\u003c\/p\u003e\n\u003cp\u003eOnboard Resources:\u003cbr\u003e\nSerial port circuit(with protection)\u003cbr\u003e\nAntenna interface circuit(SMA bend female port)\u003cbr\u003e\nSIM card circuit(flip SIM slot)\u003cbr\u003e\n4*3.5 fixture hole 4pcs\u003cbr\u003e\nSIM900A serial port output terminal\u003c\/p\u003e\n\u003cp\u003eSpecifications:\u003cbr\u003e\nSize:49mm x 47mm\u003cbr\u003e\nNet Weight:28g\u003cbr\u003e\nWeight: 38g\u003c\/p\u003e\n\u003cp\u003ePackage Included:\u003cbr\u003e\n1 x SIM900A V4.0 kit\u003cbr\u003e\n1x Power Cable\u003cbr\u003e\n1x Antenna\u003c\/p\u003e","brand":"Others","offers":[{"title":"Default Title","offer_id":42292908392639,"sku":"MLE03780","price":349.0,"currency_code":"PHP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0531\/3419\/6927\/files\/sg-11134201-7rdvo-m0v20t2htsv9fe.jpg?v=1735814031","url":"https:\/\/makerlab.ph\/products\/sim900a-v4-0-kit-wireless-extension-module","provider":"Makerlab PH","version":"1.0","type":"link"}