Cautions
Make sure your SIM card is unlocked.
The product is provided as is without an insulating enclosure. Please observe ESD precautions specially in dry (low humidity) weather.
The factory default setting for the GPRS Shield UART is 19200 bps 8-N-1. (Can be changed using AT commands).
Interface Introduction
Power select-select the power supply for GPRS shield(external power or 5v of)
Power jack-connected to external 4.8~5VDC power supply
Antenna interface-connected to external antenna
Serial port select-select either software serial port or hareware serial port to be connected to GPRS Shield
Hardware Serial-D0/D1 of
Software serial-D7/D8 of
Status LED-tell whether the power of SIM900 is on
Net light-tell the status about SIM900 linking to the net
UART of SIM900-UART pins breakout of SIM900
Microphone-to answer the phone call
Speaker-to answer the phone call
GPIO,PWM and ADC of SIM900-GPIO,PWM and ADC pins breakout of SIM900
Power key-power up and down for SIM900
Colour: blue
Material: PCB+metal
Size: 78.2x54.8mm
Package Contents:
1 * Quad Band Module
Only the above package content, other products are not included.
Note: Light shooting 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.
Logistics information
Our products are located in Hong Kong, China, and the logistics speed depends on your specific location. According to our experience, it usually takes about 15-20 days of transportation time
CONTACT US
RETURNS POLICY
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How to choose the correct size:
Step 1 Please measure your foot length carefully.
Step 2 Please choose the correct size according to your foot length and chinese size.
For example, If your foot length is 255 mm , you should choose the size 8.
