Waveshare SIM7070G NB-IoT / Cat-M / GPRS / GNSS HAT for Raspberry Pi

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Product Link

Waveshare SIM7070G NB-IoT / Cat-M / GPRS / GNSS HAT for Raspberry PiOpenELAB

Introduction

This is a telecommunication HAT for Raspberry Pi which supports global bands of NB-IoT, Cat-M, and GPRS, as well as GNSS positioning function. Due to its advantages such as small size, low delay, and wide coverage, it is the ideal choice for IoT applications such as intelligent instruments, asset tracking, remote monitoring, e-health, and so on.

Compared to SIM7080G, this module also supports GPRS (2G); compared to SIM7000C/E, it is more generic due to the global bands support.

Features

• Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards

• Supports communication protocols such as TCP/UDP/HTTP/HTTPS/TLS/DTLS/PING/LWM2M/COAP/MQTT

• Supports GNSS positioning (GPS, BeiDou, GLONASS, Galileo)

• Onboard USB interface, to test AT Commands, get GPS positioning data, and so on

• Breakout UART control pins, to connect with host boards like Arduino/STM32

• SIM card slot supports ONLY 1.8V SIM card (3V SIM card is not available)

• 2x LED indicators, easy to monitor the working status

• Baudrate: 300~3686400 bps

• Common baud rate auto-negotiation: 9600/19200/38400/57600/115200 bps

• Comes with development resources and manual (examples for Raspberry Pi/Arduino/STM32)

Specifications

NB-IOT/CAT-M/2G
Band	NB-IoT: B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B25/B26/B28/B66/B71/B85
Cat-M: B1/B2/B3/B4/B5/B8/B12/B13/B14/B18/B19/B20/B25/B26/B27/B28/B66/B85
GSM/GPRS/EDGE: 850/900/1800/1900MHz
Data rate	NB-IoT: 136Kbps(DL)/150Kbps(UL)
Cat-M: 589Kbps(DL)/1119Kbps(UL)
GPRS: 85.6Kbps(DL)/85.6Kbps(UL)
EDGE: 236.8Kbps(DL)/236.8Kbps(UL)
SIM card support	NB-IoT/Cat-M/2G card (1.8V SIM card ONLY)
Applicable region	global
GNSS
Receiver type	16-channel
C/A Code
Band	GPS L1: 1575.42 ± 1.023MHz
GLONASS L1: 1598.0625 ~ 1605.375MHz
BDS B1: 1559.052 ~ 1591.788MHz
Galileo L1: 1575.42 ± 1.023MHz
Data format	NMEA-0183
Antenna	Active antenna
OTHER
Power supply	5V
Operating voltage	5V / 3.3V (configured via 0Ω resistor)
Current consumption	about 41mA (idle mode)
Operating temperature	-40°C ~ 85°C
Storage temperature	-45°C ~ 90°C
Dimensions	30.50mm × 65.00mm

Pinout

Dimensions

Dimensions：30.50mm × 65.00mm

Weight: 0.148 kg

How to Use

Use it with Raspberry Pi

Initialize IO and install software

The PWRKEY pin is connected to P7 (wiringPi number) of Raspberry Pi by jumper. To let the SIM7080G board work normally, you should firstly initialize the P7 pin. Download codes and run by the following commands.

sudo apt-get update
sudo pip install RPi.GPIO
sudo apt-get install python-serial
wget -P ~/Documents/ https://files.waveshare.com/upload/4/4a/SIM7080G_Cat_M_NB_IoT_HAT_Code.tar.gz
cd ~/Documents
tar -xzf SIM7080G_Cat_M_NB_IoT_HAT_Code.tar.gz
sh ~/Documents/SIM7080G_Cat_M_NB_IoT_HAT_Code/RaspberryPi/pi_gpio_init.sh

Enable UART and hardware connection.

Open raspi-config by following commands, and choose Interfacing Options -> Serial, close login shell and open the hardware serial port.

sudo rapsi-config

Python codes

The python codes is provided for MQTT function.

cd ~/Documents/SIM7080G_Cat_M_NB_IoT_HAT_Code/RaspberryPi/python/mqtt/
sudo python mqtt.py

Use it with STM32

The demo codes provided is based on Waveshare Open103C, it is use for TCP connecting.

Use it with Arduino

The demo codes provide is based on Arduino UNO. The D10 (RX) and D11 (TX) is used for software serial.

FAQ

Can SIM7070G use cellular network and GPS positioning at the same time?

SIM7080X and SIM7070X series cannot connect to cellular networks and GPS positioning at the same time.

SIM card type?

Support 25mm X 15mm SIM standard card as shown in the picture below, if it is a Micro or Nano card you need to add a card holder.

Why is there no signal from SIM7070G?

• Fixed NB-IOT or CAT-M Easier to get the signal:

AT+CMNB=2 //Fixed NB-IOT
AT+CMNB=1 //Fixed CAT-M

• Fixed LTE mode can register to the network faster:

AT+CNMP=38

Please refer to the following manual for specific instructions: SIM7070_SIM7080_SIM7090_Series_AT_Command_Manual_V1.03

Why didn't the module Raspberry Pi return when the minicom sent the AT command?

SIM7070G may get stuck when it is first turned on, send AT commands several times until it returns OK.