User Guide

Sixfab Raspberry Pi 3G-4G/LTE Base HAT

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 need only check the following points:

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.

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

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:

At the case you need the HAT as the slimmest 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, doesn’t need UART communication or IOs, headerless HAT