Raspberry Pi 3G/4G & LTE Base HAT

(3 customer reviews)


As soon as you insert 3G/4G & LTE mini PCIe modules, this Base HAT becomes a bridge between Raspberry Pi and the modem. This cellular HAT provides simplified data connection for remote IoT projects, on the field, across the globe, everywhere. Start using a high-speed LTE connection with low power consumption in a slim form factor with all necessary software for Raspberry Pi. You will definitely need to get a miniPCIe module to make it work. It is a newer version of the Base Shield, see the comparison below.

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The Sixfab 3G/4G & LTE Base HAT grants your Raspberry Pi or 40-pin Pi compatible single-board-computer a super-simple interface bridge between mini PCIe cellular modems. With the modems you insert into Base HAT, your Raspberry Pi based projects will access data networks all around the world. This Base HAT enables high-bandwidth cellular connectivity on your remote devices. From low-power consumption LTE-M to ultra-high-speed LTE-Advanced mini PCIe cards supported by this HAT. Both UART and USB communication with modules are available on the shield.

Remote management of your devices on the field, secure connection over the mobile network, reliable coverage across the globe with lots of carrier options are available with this HAT stacked on the Raspberry Pi. It can be used as an LTE modem or dongle. If you’re looking for a Raspberry Pi LTE HAT for applications like Raspberry Pi video streaming or high-speed data transferring, you are at right place. This add-on board allows you to create a remote controllable LTE Wi-Fi Hotspot, high-speed GPS tracking and more.

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  1. Fully compatible with Raspberry Pi models that have the 40-pin GPIO header (4, 3, 2, B+, A+, Zero)
  2. Easy-to-use, simple setup, plug-and-play
  3. QMI and PPP are supported
  4. Clip-in Mini PCIe socket compatible with worldwide LTE, UMTS/HSPA+ and GSM/GPRS/EDGE coverage with regional or global modules which work with different frequencies & carriers
  5. With the 4G/LTE Module(e.g Quectel EC25) you can reach 150Mbps downlink and 50Mbps uplink data rates. And the 3G Module( e.g Quectel UC20) delivers the maximum data rate of 14.4Mbps downlink and 5.76Mbps uplink.
  6. Micro SIM Card socket is easily reachable on the upside of the HAT.
  7. Can be used standalone with PC/Laptop over micro USB, without stacking with Raspberry Pi.
  8. The HAT can be powered from an external 5V source by exposed power pins, directly from Raspberry Pi 5V GPIO headers, via micro USB, or optional JST connector on the bottom of the board. A specially designed 90-degree right angle micro USB cable is included to package.
  9. Efficient and low quiescent current power circuit can hold up to 3Amps
  10. Optional Send/Receive AT commands over Raspberry Pi UART port is available
  11. Taking the module into the Airplane Mode, resetting module or RI and DTR functions can be accessible over GPIO pins.
  12. The power of the whole board electronics can be disabled for low-power consumption use cases
  13. The modules(EC25&UC20) have built-in GNSS(GPS/GLONASS) receiver for your location-based applications.
  14. Working temperature range: -40°C ~ 80°C


Base HAT vs Base Shield V2

  • Base HAT does not require to choose its header type, long, short or no header. It comes with an SMD header acceptable and short&long headers, you can stack it whatever you want.
  • You can completely disconnect the power of HAT by driving GPIO26 to a HIGH-level voltage state. Then it starts to consume below 1 milliamp typically.
  • USER LED is added and light up if you drive GPIO27 to HIGH.
  • USER BUTTON added and pulled-up by default. When you push the button, you can sense a LOW level from GPIO22.
  • Now, it can be called as a HAT not shield, complies with HAT requirements by Raspberry Pi Foundation.
  • It has a slot for Pi Camera on board for easy mount.
  • The location of the micro USB connector realigned. It is better now to use the right-angle micro USB cable included in the package without bending it too much.
  • There is a new footprint for a surface mount right-angle JST connector on the bottom of the board for external 5V sources. It is not soldered by default.
  • All GPIO pins used by HAT connected to Raspberry Pi IOs via normally-close jumpers. You can easily cut the connection on the bottom of the board if the pin occupied by another HAT you stacked on it.


Migration to Base HAT from Base Shield V2

The new HAT has better power circuitry and features than Base Shield V2. It is pin-to-pin compatible, your old setup will work with the new Base HAT right out of the box. You only need to check the following points:

  1. On the Base Shield V2 the GPIO26 connected to PERST-PCI pin of the miniPCI pinout. It lets you reset the modem by changing the state of this pin. Now, this pin used for enabling/disabling of the power of HAT, that means you can reset the modem by cutting its power and enabling then.
  2. Two new IO pins, GPIO27 and GPIO22 populated by USER LED and BUTTON respectively by this new HAT. If you need these pins by your project, you can cut the jumpers on the bottom of the board easily. (SJ5 for the button, SJ6 for LED)


Key Applications

  1. Video/Music Streaming
  2. Large Data Downloads and Uploads
  3. LTE Dongle/Router
  4. Mobile Internet Hotspot
  5. High-speed GPS Tracking
  6. Real-time Environmental Monitoring
  7. Smart City & Agriculture Applications
  8. Smart Parking
  9. Security & Asset tracking


Header Options

Raspberry Pi Base HAT Header Options

The HAT comes with built-in SMD header acceptable and two headers with different lengths included in the package by default. You can choose the right version for the project and stack and use it immediately without soldering it.

  1. Long Header: If you plan to attach another Raspberry Pi HAT or add-on board on top of the Base Shield, you will definitely need this variation. Also, using GPIOs with jumper cables is possible with these male headers. If you need to stack another shield on top of Base HAT or still need to use GPIOs, the long header will be useful.
  2. Short Header: In case you need the HAT as slim as possible, the short header will work like there is no header added length above the Raspberry Pi.
  3. Without Header: If just the plugging Base HAT via micro USB cable to Raspberry Pi is enough for you, or you’ve already attached a bulky shield on Pi, or you don’t need UART communication or IOs, headerless HAT works greatly. To find out what you are missing without headers, take a look at the Pinout Diagram of the HAT, these pins will be unconnected.

Package Includes

  • 1x Sixfab 3G/4G&LTE Base HAT for Raspberry Pi
  • 1x 90-degree Right Angle Micro USB Cable
  • 1x Long Header
  • 1x Short Header

The 3G/4G-LTE Mini PCIe modules are not included.

3 reviews for Raspberry Pi 3G/4G & LTE Base HAT

  1. Stefano (verified owner)

    Works very well with EC25 module on a Raspberry pi 3B+
    PPP connection very good in Italy with Vodafone carrier (APN: mobile.vodafone.it)!
    Very important: Remove the PIN code of the SIM before using!

  2. Mat

    Awesome hat.
    Using this hat with the EC25-E I get coverage where phones fail! I have used this without problems in the UK, FR, GER and the USA. I was not expecting it to work in the USA, but it did while using a UK Simm. Sixfab products are made very well.

  3. Furkan

    One of my favorite. Works with UC20G and EC25. Congrats guys.

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