Description
The A9G development board is a multifunctional development board based on EMC’s A9G GPRS/ GSM + GPS/ BDS module, you can use it to verify the basic communication and peripheral functions of A9G module.
It has the basic phone/ SMS, GPRS networking communications and GPG/ BDS dual mode positioning function.
There are lithium battery charge management, microphone, speaker interface, USB communication interface, multiple user keys/ led, TF card slot, acceleration sensor, SPI interface, I2C2 interface, ADC interface on the boards, so you can develop different functions with this board.
Application
Vehicle anti-theft device using GPRS+GPS and acceleration sensor.
Remote monitoring intercom using GSM and microphone/speaker
Smart watch using GPRS/GSM+GPS, 1.54-inch capacitive touch screen
Elderly monitoring watch using GPRS/GSM+GPS, heart rate blood oxygen sensor, 1.54 inch capacitive touch screen
Remote surveillance camera using GPRS+TF+ camera expansion board
Features
Working voltage: 5v USB or Lipo battery(3.3V-4.2V)
Support the GSM / GPRS four bands, including 850,900,1800,1900MHZ
Support GPS/BDS
Supports digital audio and analog audio, supports HR, FR, EFR, AM R voice coding
Support voice calls and SMS messages
Embedded network service protocol stack
Support standard GSM07.07.07.05AT command
GPIO level: 2.8v
Size: 19.2mm x 18.8mm x 3mm
Datasheet
A9G GPRSGSM+GPSBDS Module
A9G GPRSGSM+GPSBDS Module
Connection
Connect usb-ttl with 4 wires when debugging, VUSB-5V; GND-GND; AT_TX-RX; AT_RX-TX
Or power supply by USB, then connect another three lines, GND-GND; AT_TX-RX; AT_RX-TX
Or power by lithium battery, VBAT-(3.3v-4.2) V; GND-GND; AT_TX-RX; AT_RX-TX; (VBAT power supply, need to press power_key button for about 2s)
Power on
A9G development board can be powered by USB or lithium battery.
It does not require any operation when powered 1-2s.
Please press the Rst_Key button to reset.
The module enters AT command mode by default.
Package Includes
GSM GPS Module
1 X GSM / GPRS Antenna
1 X GPS Antenna
Note
1. USB on the board is only used as a power supply, and you need a USB to TTL converter module to start it up.
2. This product does not include returns due to the registry plan.
Currently, there is no law regarding the registry of telecommunication modules in the country, and Ohm Electronics Store will not be held responsible in case of problems in the operation of these modules.
دیدگاهها
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