Arduino Cellular IoT Application Shield – LTE-M & NB-IoT & eGPRS
This is a shield that has combined LTE technologies Cat.M1, Cat.NB1 (NB-IoT) and eGPRS for Arduino, based on Quectel’s BG96 module. The shield has the power of new IoT phenomenon LPWA (Low Power Wide Area) with Cat.M1 and NB-IoT connection functionalities. Besides, It also provides the function of eGPRS that be enhanced version of classical GPRS.
The shield has GNSS (GPS, GLONASS etc.) functionality for the need of location, navigation, tracking, mapping and timing applications.
The design has a built-in temperature, humidity, light sensors, 3-axis accelerometer, and relay.
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The ancient 2G cellular network is now dying. New and better LTE technologies are being used instead. LTE Cat M1/Cat NB1(NB-IoT) is the latest way of the cellular communication. This LTE shield for your Arduino lets you connect the Arduino to this new cellular networks thanks to Quectel BG96 LTE module on it. It also provides the connection to eGPRS that is the enhanced version of classical GPRS.
Quectel BG96 is a series of LTE Cat M1/Cat NB1/EGPRS module offering a maximum data rate of 375Kbps downlink and 375Kbps uplink with worldwide coverage. The shield has built-in temperature, humidity, light sensors, 3-axis accelerometer, a relay and more. This LTE add-on for Arduino also supports GNSS(GPS, GLONASS etc) for the need of getting location, navigation, tracking, mapping and timing applications.
- Compatible with the models like Arduino UNO, Leonardo and more.
- Supported Protocols*: PPP/TCP/UDP/SSL/TLS/FTP(S)/HTTP(S)/NITZ/PING/MQTT
- Worldwide coverage with supported bands:
- Cat M1/Cat NB1:
- LTE FDD: B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B26/B28
- LTE TDD: B39 (For Cat M1 Only)
- EGPRS: 850/900/1800/1900MHz
- Cat M1/Cat NB1:
- Embedded GNSS Functionality (GPS, GLONASS, BeiDou/Compass, Galileo, QZSS)
- 3-axis Accelerometer
- Humidity and Temperature Sensors
- Ambient Light Sensor
- 3GPP E-UTRA Release 13, 3GPP TS27.007, 3GPP TS 27.005 and Quectel Enhanced AT Commands over UART port to Arduino is available
- Efficient and low quiescent current regulator circuit can hold up to 3.6A
- Can be used standalone with PC/Laptop over micro USB, without stacking with an Arduino
- Micro SIM Card socket can easily reachable on the upside of the shield.
- Working temperature range: -30°C to +80°C
- Smart farming sensor
- Smart cities sensor
- Smart home sensor
- Internet of Things (IoT) sensor
- Smart door lock
- Smart lightning
- Smart metering
- Bike sharing
- Smart parking
- Smart city
- Security and asset tracking
- Home appliances
- Agricultural and environmental monitoring
The UART pins will be available to use, with 5V power domain, connected to the Software Serial
(D9, D10) of Arduino. Can be used for AT command communication with
9600bps baud rate.
To use GNSS over a UART, first run the turnOnGNSS method in the Sixfab_Arduino_CellularIoT library.
PROG <---> GNSS switch on the shield must be switched to the GNSS side.
- Models with a single serial interface for USB and UART, such as Arduino Uno:
GNSS UART interface is connected to hardware serial port
serialof Arduino. Can be getting GNSS messages with
- Models with separate USB and UART interfaces such as Arduino Leonardo:
GNSS UART interface is connected to hardware serial port 1
serial1of Arduino. Can be getting GNSS messages with
The shield can also be used directly via the USB interface. For stand-alone use with USB interface:
- Power the shield via Arduino or directly with jumpers. Power source voltage should be
- Press and release the
POWERKEYbutton for half a second. After this operation, the
STATUS LEDof the module will be light on continuously and
NETLIGHT LEDwill start to blink.
- Connect the shield to the computer with micro USB cable.
- Install the Quectel USB drivers if you don’t have.
- Now you can connect to BG96 AT Command COM Port or GNSS COM Port with any serial monitor program. (putty, hercules etc.)
Max. 375Kbps (Downlink), Max 375Kbps (Uplink)
Max. 32Kbps (DL), Max. 70Kbps (UL)
Max. 296Kbps (DL), Max. 236.8Kbps (UL)
Max. 107Kbps (DL), Max. 85.6Kbps (UL)
Point-to-point MO and MT
SMS Cell Broadcast
Text and PDU Mode
- GNSS: GPS, GLONASS, BeiDou/Compass, Galileo, QZSS
- Firmware Upgrade: via USB interface
- DFOTA: Delta Firmware Upgrade Over the Air
- Audio Record/Play
- Processor: ARM A7 Processor, with 3MB Flash and 3MB RAM Available for Users
|A0||RELAY||Relay control pin. When this pin is HIGH state, relay is operated (Common and NO will connected).|
|A1||LIGHT||The analog output of the phototransistor of light sensor.|
|A2||POWERKEY||The module can be turned on by driving the pin to a HIGH-level state more than 500ms then pulling it down. You can apply the same process to power down to the module if it already powered up.|
|A3||STATUS||The STATUS pin is used to indicate the operation status of BG96 module. It will output HIGH level when the module is powered on.|
|SCL,SDA||SCL,SDA||I2C Serial Data for Accelerometer and Temperature&Humidity Sensor.|
|10,9||AT_TX, AT_RX||These pins function as UART communication for module.|
|8||RI||When BG96 has URC to report, RI signal will wake up the host. Please refer to Chapter 3.14 for details about RI behavior from BG96 Datasheet.|
|7||AP_READY||AP_READY will detect the sleep state of the host (can be configured to HIGH level or LOW level detection). Please refer to AT+QCFG=“apready” command for details.|
|6||USER_BUTTON||This pin normally pulled-up. When the button is pressed, pin switches to LOW state.|
|5||USER_LED||Active HIGH, to switch on the USER LED, the pin’s state should be HIGH.|
|4||ENABLE||This pin controls the BG96 3.8V Power regulator, level-shifters for UART and I2C. Normally pulled-up, when this pin drove to LOW, BG96’s power will cut off, level-shifters go Hi-Z state.|
|1,0||DEBUG_TX,DEBUG_RX||Debug pins for the module. The default baudrate is 115200bps.|
You can download the schematic of Arduino Cellular IoT Application Shield from this Github repository soon.
- POWER (PWR): When the shield is powered up, this RED led turns on.
- STATUS (STAT): While the module is powered up by driving PWRKEY(A2 pin) to HIGH state or pushing the PWRKEY button, this RED led turns on.
- USER (USER): The GREEN user led can be controlled by driving the pin 5.
- ENABLE(EN): This GREEN led shows the status of the power regulator of module is switched on or off. By default, the pin 4(ENABLE) is pulled up by hardware and the regulator juices the module. To shut down the regulator, this pin needs to be driven to LOW state.
- NETLIGHT (NETL) : This BLUE led indicates the status of the module. When the connection is established and data is being transmitted/received, this led will blink at special intervals. Please find the following chart for details:
|Flicker slowly (200ms ON/1800ms OFF)||Network searching|
|Flicker slowly (1800ms ON/200ms OFF)||Idle|
|Flicker quickly (125ms ON/125ms OFF)||Data transfer is ongoing|
|Always high||Voice calling|
- USER: This push button connected to pin 6 and pulled up HIGH state by default. When you push the button, you will read LOW state from pin 6.
- PWRKEY: When BG96 is in power off mode, it can be turned on to normal mode by pushing the PWRKEY button for at least 500ms.
- BOOT: Pushing this button can force the module to boot from USB port for firmware upgrade.
- The MMA8452Q is a smart, low-power, three-axis, capacitive, micromachine accelerometer with 12 bits of resolution. It has user selectable full scales of ±2 g/±4 g/±8 g with high-pass filtered data as well as non-filtered data available real-time.
- The accelerometer connected to Arduino via I2C. The I2C address is 0x1C.
- MMA8452Q’s interrupt pins are not connected.
- It’s a phototransistor close responsively to the human eye spectrum, light to current.
- The sensor connected to Analog 1 pin of Arduino.
- The HDC1080 is a digital humidity sensor with integrated temperature sensor that provides excellent measurement accuracy at very low power.
- Relative Humidity Accuracy ±2% (typical)
- Temperature Accuracy ±0.2°C (typical)
- The HDC1080 connected to Arduino via I2C. The I2C address is 0x40.
- The heat that produced by when Arduino heats up may cause the sensor to display a few higher degrees than the ambient temperature.
- The relay for controlling high voltage and current.
- Relay control pin is A0. When this pin is HIGH, relay is switched and connected C and NO pins. When A0 is LOW state or unused, it connects C and NC pins.
- This small form factor relay can handle up to 60W. Pushing the limits will harm the circuits and shield. Maximum contact ratings:
- 12V DC – 5A
- 24V DC – 2.5A
- 120V AC – 0.5A
- 220V AC – 0.25A
- 1x Sixfab Cellular IoT Application Shield for Arduino
- 1x Mini Flat Head Screwdriver for Connection Terminal
- Download Quectel LTE Windows USB Driver v2.0.13
- Download Quectel WCDMA<E Linux USB R01A01
- Download Quectel Android RIL Driver v1.41.36
- Download Quectel BG96 AT Commands Manual v2.2
- Download Quectel BG96 GNSS AT Commands Manual v1.1
- Download Quectel BG96 TCP(IP) AT Commands Manual v1.0
- Download Quectel BG96 HTTP(s)AT Commands Manual v1.0
- Download Quectel BG96 MQTT Application Note v1.0
- Download Quectel BG96 PPP Application Note v1.0
- Download HDC1080 Temperature&Humidity Sensor Datasheet
- Download MMA8452Q 3-Axis Accelerometer Datasheet
- Download ALS-PT19 Light Sensor Datasheet
The Arduino Cellular IoT Application Shield Github Repository contains the libraries and codes are used in tutorials, hardware files and more.