Module NBIoT

SKU:M028

Description

Module NBIoT is an NB-IoT communication module in the M5Stack stackable module series. It integrates a high-performance NB-IoT full-network wireless communication module M5311. The low-power design helps customers achieve longer terminal life. The M5311 provides rich external interfaces and protocol stacks, supports external sensor devices, and offers great convenience for user product development. It also supports the OneNET cloud platform protocol, enabling seamless integration and rapid development. This module is particularly suitable for IoT industries such as smart metering, smart wearables, smart parking, and municipal management, where ultra-low power consumption and ultra-small size are core requirements.

Features

SIM Card Type: Nano
Status Signals: Two LED indicators
Single Power Button
Onboard Antenna Option: Default onboard spring antenna (or switch to IPEX connector via jumper)
Serial Communication: Uart2 16/17
Operating Temperature Range: -40°C to +85°C
NB-IoT: Supports LTE Cat NB2*
Frequency Bands:
- B3/B5/B8
Data Transmission:
- LTE Cat NB1 Rate (kbps):
  - Single Tone 15.625 (UL) / 21.25 (DL)
  - Multi Tone 62.5 (UL) / 21.25 (DL)
- SMS: Supports PDU/TEXT mode
- Network Protocols: IPv4/IPv6/UDP/TCP/CoAP/LwM2M/HTTP/MQTT/TLS
Electrical Characteristics:
- Current Consumption:
  - 3uA @ PSM
  - 0.4mA @ Idle mode (DRx=1.28S)
  - 167mA @ Tx (23dBm/15kHzST)
  - 54mA @ Rx
- Output Power: 23dBm ± 2dB
- Sensitivity:
  - -114dBm (without retransmission)
  - -130dBm (with retransmission)

Includes

1 x Module NBIoT

Applications

Smart Metering
Smart Parking
Municipal Management

Specifications

Specification	Parameter
Net Weight	13g
Gross Weight	24g
Product Size	54.2 x 54.2 x 2.8mm
Package Size	60 x 57 x 17mm

Learn

Frequency Bands for Some Country Operators

The following information is for reference only and may not be real-time.

North America	B4 (1700), B12 (700), B66 (1700), B71 (600), B26 (850)
Asia Pacific	B1(2100), B3(1800), B5(850), B8(900), B18(850), B20(800), B26(850),B28(700)
Europe:	B3 (1800), B8 (900), B20 (800)
Latin America	B2(1900), B3(1800), B5(850), B28(700)
Commonwealth of Independent States	B3 (1800), B8 (900), B20 (800)
Sub-Saharan Africa	B3(1800), B8(900)
Middle East, North Africa	B8(900), B20(800)

Additional Notes:

GPIO2 held high for 2s to power on
GPIO2 held high for 8s to power off
Power button held for 2s to power on
Power button held for 8s to power off
GPIO26 high to reset the module

Compatibility

When used with the Fire main control, due to PSRAM pin (G16/G17) conflict, a jumper wire is needed to connect to another set of UART pins.

Schematics

NB-IoT Plus Module

PinMap

M5-Bus

Fly Wire

The pins marked FW on the M5-Bus below can be switched via fly wires to adapt to different main control devices.

PIN	LEFT	RIGHT	PIN
GND	1	2
GND	3	4
GND	5	6
	7	8
	9	10	RST
	11	12	3V3
	13	14
TXD (FW)	15	16	RXD (FW)
	17	18
PWR	19	20	RXD (FW)
TXD (FW)	21	22	RXD (FW)
TXD (FW)	23	24
	25	26
	27	28
	29	30

Datasheets

M5311

Softwares

Arduino

Module NBIoT Example with M5Core.

Protocol

M5311 AT Command Table

Easyloader

Easyloader	Download Link	Notes
Module NBIoT Example Easyloader with M5Core	download	/