Gravity 4G/LTE IoT Communication Module Air780EU CAT1

The Gravity 4G communication module with the Air780EU (TEL0177) is designed for Europe, the Middle East, Africa, Russia and Thailand. It works with LTE Cat 1 in the LTE-FDD bands B1, B3, B7, B8, B20 and B28: up to 10 Mbit/s download and 5 Mbit/s upload. It is controlled with AT commands via UART; via USB-C it works as a network card on PC, Raspberry Pi and LattePanda without drivers. In sleep mode it needs only 0.6 mA and wakes up on serial data or by timer.

Switzerland: 2G (GSM) has been switched off in Switzerland, and the 3G networks are being switched off (OFCOM, as of December 2025). The module uses LTE only anyway.

Important: For operation via the UART connector (PH2.0) the module needs an external supply of 5 V to 12 V at the screw terminal. According to DFRobot, supply via the UART connector with 3.3 V to 5 V is only sufficient for tests.

Note: The connection cable can be converted to male pins with a Dupont cable M-M, so that it also fits an Arduino UNO.

Recommended Accessories:

Dupont Cables M-M 10cm 20 Pieces

Features:

LTE-FDD B1, B3, B7, B8, B20 and B28
LTE Cat 1: up to 10 Mbit/s download, 5 Mbit/s upload
Protocols TCP, UDP, PPP, HTTP, HTTPS, NITZ, NDIS, NTP and MQTT
Control with AT commands via UART
USB-C with driver-free network card function
Sleep mode with 0.6 mA, wake-up via UART data or timer
Logic level 3.3 V and 5 V
Nano SIM holder, SMA antenna connector

Application Examples:

Monitoring in agriculture and forestry
Detection of industrial pollution
Remote control of lighting
Mobile payment networks
4G connection for industrial PCs
IoT projects in warehouses, buildings and homes

Documentation:

Technical Data:

Manufacturer: DFRobot
Manufacturer SKU: TEL0177
Module: Air780EU
Regions according to DFRobot: Europe, Middle East, Russia, Thailand, Africa
Bands: LTE-FDD B1, B3, B7, B8, B20, B28
Data rate: LTE Cat 1, 10 Mbit/s download, 5 Mbit/s upload
Protocols: TCP, UDP, PPP, HTTP, NITZ, NDIS, NTP, HTTPS, MQTT
Control: AT commands
Interfaces: UART (Gravity PH2.0-4P), USB-C
Logic level: 3.3 V and 5 V
SIM: Nano SIM
Antenna connector: SMA female (external thread, inner pin)
Antenna: 4G/LTE stick antenna 50 mm, angled, SMA
Power supply: USB 5 V, screw terminal 5 V to 12 V (recommended for long-term operation), UART 3.3 V to 5 V (tests only)
Sleep current: 0.6 mA
Network LED blue: 0.2 s on and 1.8 s off searching, 1.8 s on and 0.2 s off standby, fast flashing data transfer
Operating temperature: -40 °C to 85 °C
PCB: 42 × 37 mm
Weight: 33 g