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M5Stack NB-IoT Module (M5311)
DescriptionThis is a wireless communication module, integrated an NB-IoT M5311 module that produced by China Mobile. The dimension if M5311 is 16mm * 18...
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Description
This is a wireless communication module, integrated an NB-IoT M5311 module that produced by China Mobile. The dimension if M5311 is 16mm * 18mm*2.2mm, which is very tiny, and gives convenience to the user of more flexible dimension requirement.
package with LCC allows quick production through standard SMT, which provides a more reliable connection method and performance on the extreme environment.
the power requirement of this M5311 module is down to 2.1V, AA battery supported, it can fully utilize the power of AA battery, to provide an extremely low-power-consumption solution for terminal devices.
M5311 provides abundant external interfaces and protocol stacks, support peripheral sensors, etc.
Based on M5311, we have offered extra hardware resources on NB-IoT Module, WUP, STA LEDs, 3 alternative UARTs, one power button, and 2 alternative antennae.
More info about NB-IoT: NarrowBand-Internet of Things (NB-IoT) is a standards-based low power wide area (LPWA) technology developed to enable a wide range of new IoT devices and services. NB-IoT significantly improves the power consumption of user devices, system capacity and spectrum efficiency, especially in deep coverage. Battery life of more than 10 years can be supported for a wide range of use cases.Supported by all major mobile equipment, chipset and module manufacturers, NB-IoT can co-exist with 2G, 3G, and 4G mobile networks. It also benefits from all the security and privacy features of mobile networks, such as support for user identity confidentiality, entity authentication, confidentiality, data integrity, and mobile equipment identification. NB-IoT focuses specifically on indoor coverage, low cost, long battery life, and high connection density. NB-IoT uses a subset of the LTE standard, but limits the bandwidth to a single narrow-band of 200kHz. It uses OFDM modulation for downlink communication and SC-FDMA for uplink communications
Product Features
- Serial communication: UART
- Product Power in : 5V
- 3x Alternative UARTs
- 2x antenna: Spring / External
- WUP, STA LEDs
- 1x Power Button
- Nano SIM(Exclude SIM card)
- M5311
- Package: LCC
- Frequency Band: B3/B8/B5
- Tem:-40°C ~ 85°C
- NB-IoT support LTE Cat NB2*
- LTE Cat NB1 speed (kbps): Single Tone:15.625(UL)/21.25(DL) Multi Tone:62.5(UL)/21.25(DL)
- SMS: PDU/TEXT mode
- Network Protocol: IPv4/IPv6/UDP/TCP/ CoAP/LwM2M/HTTP/MQTT/TLS
- power in: 2.1V ~ 3.6V,Typ 3.3V (Low-Voltage version) & 3.0V ~ 3.6V,Typ 3.3V (Fixed-Voltage version)
- Interface： USIM ×1(1.8V/3.0V) UART ×2 I2C ×1 SPI ×1 RESET ×1 GPIO ×2 ADC ×1(10bits) 2x Antenna
- Consumption: 3uA@PSM 0.4mA@ldle mode(DRx=1.28S) 167mA@Tx(23dBm/15kHzST) 54mA@Rx -output power: 23dBm±2dB
- Certificate: CCC/SRRC/NAL/GTI
Include
- 1x NB-IoT module
Application
- Smart Wearable device
- Smart Parking
- Smart Meter
- IoT in City
Jargon buster
Plain-language definitions for the technical terms used above.
- ADC
- An analogue-to-digital converter reads a changing voltage and turns it into a number the microcontroller can use. It matters when connecting analogue sensors such as light, sound, or variable-resistor sensors.
- GPIO
- General-purpose input/output pins are microcontroller pins you can set in software to read signals, switch devices on and off, or connect to peripherals. The number of GPIO pins matters because it limits how many buttons, LEDs, sensors, and other parts you can wire directly to the board.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- IoT
- Short for Internet of Things, meaning physical devices that connect to networks or the internet to send data or be controlled remotely. It matters if you want projects such as connected sensors, remote controls or classroom data-logging activities.
- MQTT
- A lightweight messaging protocol often used for IoT devices to publish and receive data through a server called a broker. It matters for home automation and sensor networks because it is simple, efficient, and widely supported.
- Nano SIM
- Nano SIM (the 4FF form factor) is the smallest common SIM card size, used by many phones and cellular modules. When a product needs a Nano SIM, you must supply a matching SIM card and an active mobile service plan before it can connect to a cellular network.
- NB-IoT
- NB-IoT is a low-power cellular network standard designed for sending small amounts of data from remote devices on long battery life. When a product lists NB-IoT, it can report readings from places without Wi-Fi or Ethernet, provided there is suitable cellular coverage and a data plan.
- RX
- RX means receive, usually showing data being received by the board. An RX indicator LED can help with troubleshooting USB or serial communication.
- SPI
- A fast serial communication bus often used for displays, memory cards, and sensors. It matters because SPI devices need specific pins for clock and data, plus a separate chip-select line for each device.
- TX
- TX means transmit, usually showing data being sent from the board. A TX indicator LED can help you see when the board is communicating or uploading code.
- UART
- UART is a simple asynchronous serial interface that sends data over separate transmit and receive wires, usually labelled TX and RX, with both ends set to the same baud rate. It is a common way for microcontrollers and other serial devices to exchange data.
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