User Guide

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

Features

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

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

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 can easily reachable on the upside of the HAT.

7. Can be used standalone with PC/Laptop over micro USB, without stacking with Raspberry Pi.

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