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Raspberry Pi 3G-4G/LTE Base Shield V2

$39.00

This product only includes the Base Shield. In order to use this with a Raspberry Pi for 3G or 4G connection, you need to use a UC20 Mini PCle 3G Module or EC25 Mini PCle 4G/LTE Module and two Antennas.

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Product Description

This is the newest version of our Raspberry Pi 3G – 4G / LTE Base Shield, the smallest, most easy-to-use, and most versatile Cellular Communication Shield we ever designed.

  • There is a clip-in Mini PCIe socket for your communication need.
  • With the 4G/LTE Module(EC25) you can reach 150Mbps downlink and 50Mbps uplink data rates and the 3G Module(Quectel UC20) delivers the maximum data rate of 14.4Mbps downlink and 5.76Mbps uplink, and – The modules have built-in GPS/GLONASS for your location-based applications.(Extra GPS/GNSS antenna is required)
  • The modules of different regions&frequencies are in stock. You’ll need the get the compatible module with your region or carrier. Let us help you to while choosing the right module if you need: [email protected]
  • The Micro Sim Card socket can easily reachable on the upside of the shield.
  • The shield is fully compatible with the single 40-pin expansion header of Raspberry Pi. With the 55 x 65mm dimensions, the shield is a perfect fit for Raspberry Pi.
  • The shield can be used standalone with your PC/Laptop over Micro USB, without stacking with Raspberry Pi.
  • You will get the special designed Micro USB cable- as you see on pictures-  as a gift.
  • SMS send/receive
  • Power and Signal LED
  • Micro USB Connector
  • External 5V connection
  • 3 different ways to supply 5V input: R.Pi pins, USB connector and external 5V input. All these inputs are connected parallelly with each other, e.g. when 5V energy is supplied to the Base Shield connected to the Raspberry Pi, then Raspberry Pi also gains the power. So, you can use the different batteries or power sources as you need.
  • Options for Long header, short header and without header
  • Optional Send/Receive commands over R.Pi UART port (Attach 0 ohm resistor to the UART Resistors section below the shield or short it using a wire.)
  • Taking the module to Airplane Mode, resetting module, RI and DTR functions control can be done over R.Pi pins.
  • Possibilities to connect with Windows or Linux OS computer/laptop via USB like 3G 4G/LTE USB Dongle Modem. Drivers can be downloaded from Quectel official website.
    For 4G/LTE: http://www.quectel.com/product/ec25.htm
    For 3G:  http://www.quectel.com/product/uc20.htm

 

The Differences Between Old Version: 

  • %25 smaller
  • No more need to screwing modules to shield. Thanks to the clip-in Mini PCIe socket, it’s more fun to mount the module on the shield.
  • The Sim Card Socket is a Micro Sim Card Socket now, and it’s on the upside of the shield.
  • The new power regulation circuit is more efficient and optimized so it’s cooler than old version while working.
  • No more bulky DC-Barrel Jack! The power input of the shield is 5V and can be obtained via Micro USB or power pins.

 

What is the header option? It’s so basic:

 

header_options-2

 

N.B :
Since 3G and 4G provides high speed internet, the communication is done over USB with Raspberry Pi. It can be connected with the USB cable provided with the Base Shield. UART can be also used for the internet connection but the speed will be very slow.

Functions to be controlled over Raspberry Pi Pins

Pinouts can be seen from the pin layout.

RI: Ring indicator pin. The indication for receiving call or SMS can be calibrated to HIGH or LOW using the AT commands. For details please check Quectel EC25 and UC20 AT Commands Manual.
DTR: When the module is in sleep mode, DTR pin allows to wake the module up by pulling it to LOW.
W_DISABLE: The module is taken to Airplane Mode i.e. the internet is disconnected.
PERST: This is used to the hardware reset.

 

Significance of LEDs:
PWR LED: Red LED. If the LED is ON, module is powered up.
SGNL LED: Blue LED. It indicates the status of the connection. If there is no connection the led will remain OFF. When the connection is established and data is being transmitted/received the LED will blink with specific intervals.

 

 

Which pins used by shield:

 

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