説明
The onboard two set supply interface VCC5 5 V supply, VCC4 interface, 3.5-4.5 V supply, optional on self start (default) and control start.The onboard SMA (standard) and IPXmini antenna interface, SIM900A interface reserved reset.The size of the module is 49 * 50.The computer can give early computer debugging USB module , a very 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 . Support 2, mobile phone 3,4G card.The serial port circuit: support for 3.3 V single chip microcomputer. TTL serial port support.3.3 and 5 V single chip microcomputer.The circuit increase the SMF05C ESD chip.Antenna circuit: guarantee short and straight, in order to improve the signal strength.PCB screen printing mark: any interface, convenient development twice, the SIM900 / ONE hardware is fully follow the design when the design manual.Two supply interface: VCC5, 5 V DC above 1A. Computer 5 V supply can be early computer USB. DC long data circuit over larger recommended 5V1A. VCC4, 3.5-4.5 V supply, ibid., Suitable for lithium battery.Control pin all leads.ONE ttl level, compatible with 3.3 V and 5 V.The two antenna interface, the standard SMA straight head, connector for IPXmini antenna.A way of speech interface, the way Mike interface.The control interface of each pin GND-GNDSIMR SIM900A RXD, TTL level, cannot be connected directly to the 232 levelSIMT SIM900A TXD, TTL level, cannot be connected directly to the 232 level-SIM900A reset, active lowVCC_MCU when the SIM900A module and 5 V TTL level communication, this pin is connected to DC 5 V; When the level of communication of SIM900A and 3.3 V TTL, this pin is connected to DC 3.3 V.VCC5-DC 5V input.VCC4 -DC3.5-4.5 inputOnboard Resources:Serial port circuit (with protection)Antenna interface circuit (SMA bend port female) circuit (flip SIM slot)4 * 3.5 fixture hole 4 pcsSIM900A serial port outputColour:blackMaterial:metal+PCPackage Contents:1 x SIM900A Wireless module1 x Cable1 x AntennaOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
-
ブランド:
Unbranded
-
カテゴリー:
開発ボード
-
Fruugo ID:
410286157-868678737
-
EAN:
9460736581265
製品安全情報
以下に概説するこの製品に固有の製品安全性情報を参照してください。
以下の情報は、この製品を販売する独立したサードパーティ小売業者によって提供されています。
製品安全ラベル
安全上の警告:
Important Safety Instructions
Read Before Use: Please read all instructions and safety warnings before using this product. Failure to follow these guidelines may result in injury, damage, or malfunction.
General Warnings
Intended Use: Use this product only for its intended purpose as described in the user manual.
Supervision Required: This product is not intended for use by children or persons with reduced physical, sensory, or mental capabilities without supervision.
Inspection Before Use: Check for any signs of damage or wear before use. Do not use if damaged.
