1. Introduction of GSM/GPRS M95 Easy
M95 module is a GSM/GPRS module of Quectel. M95 module operates in quad-band: GSM850 MHz, GSM900 MHz, DCS1800 MHz, PCS1900 MHz. M95 module supports GPRS class 12 multi-slot, SMS, MMS ... M95 module is integrated with Internet protocols such as TCP / IP, UDP, FTP and PPP, which is controlled by the AT Command set protocol.
GSM/GPRS M95 Easy is a product developed by AT-COM based on the features of M95 module. GSM/GPRS M95 Easy is designed with built-in SIMCARD antenna, GSM built-in PIFA Antenna, earphone / microphone jack for easy research and development of GSM / GPRS related applications such as: In addition, with its compact size, convenient data output, GSM/GPRS M95 Easy will bring to the inspiration of modern and refined design.
2. Design diagram of GSM/GPRS M95 Easy
3. Features of GSM/GPRS M95 Easy
The product is integrated ATCBus Socket with pins in the order that allows users to connect to products that support ATCBus easily. All in one ATCBus.
Power supply for GSM/GPRS M95 Easy is 5VDC. On the circuit is integrated MCP1826-ADJE/DC power IC supply 4V voltage for SIM900A module ensures the module operating at the optimal voltage level.
The circuit is designed with a transistor turns on/off M95 module. It is possible to power on/off M95 in two Methods:
Method 1: Use the On / Off button on the circuit.
Method 2: Provide a high-level pulse to the PWR pins of the ATCBus Socket, the M95 module will be powered on. When the PWR pin is triggered, the LED Status on the circuit will light up, a few seconds after the NetLight LED will blink and the M95 module starts scanning the network, checking SIMCARD ...
Led Status shows the Power on the status of M95.
Led Netlight displays the status of the existing M95 network.
A design breakthrough that AT-COM inserted into products that are the GSM Built-in PCB PIFA Antenna of Jinchang, which is directly welded to the PCB for aesthetics and compact size for the product. Especially, the antennas provide excellent GSM tuning capabilities to improve call quality as well as other applications of the product.
The circuit communicates with the microcontroller via the UART pins on the ATCBus Socket, which supports communication for both 3.3V and 5V microcontrollers. Choosing the voltage level to communicate with the microcontroller by selecting the I/O Level on the circuit. The user selects I/O Level by welding 0-ohm resistor to 3V3 or 5V position at 5V (by default, 0 Ohm resistor is welded at 5V position).
Baudrate on the pins of the default UART interface when the production of GSM/GPRS M95 Easy is 115200 bps.
When choosing to communicate with the 3.3V microcontroller, the user must supply 3.3VDC power to the 3V3 pin on the circuit as shown below:
The built-in audio jack is a quadrupole earphone that supports most of the phones available on the market, making it easy for users to experience voice applications through the GSM/GPRS M95 Easy.
Users can connect GSM/GPRS M95 Easy with Easy Board products that support ATCBus Socket to experience the "Plug and Play" feature provided by the Easy Board series.
4. Dimension of GSM/GPRS M95 Easy
5. Video demo