[EOL] M5Stack NB-IoT Module (M5311)

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Product Status Notice This product is EOL (End of Life). /* ===== Scoped Description Style ===== */ .product-description.rte { font-family: -apple-system, BlinkMacSystemFont, "Sego e UI", Roboto, "Helvetica Neue", Arial, sans-serif; color: #2c2c2c; line-height: 1.65; font-size: 16px; } /* ===== Headings ===== */ .product-description.rte h2 { font-size: 1.8em; color: #0D47A1; border-left: 4px solid #1f6fe5; padding-left: 12px; margin-top: 32px; margin-bottom: 16px; } /* ===== H3 Titles Optimization ===== */ .product-description.rte h3 { font-size: 1.4em; color: #0D47A1; margin-top: 24px; margin-bottom: 12px; font-weight: 500; padding-bottom: 6px; border-bottom: 2px solid #e6e6e6; } /* ===== Paragraphs ===== */ .product-description.rte p { margin-bottom: 20px; line-height: 1.8; color: #4a4f57; font-size: 16px; } /* ===== Paragraph Images (only in description) ===== */ .product-description.rte img { display: block; max-width: 100%; height: auto; margin: 24px auto; border-radius: 12px; box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06); } /* ===== Lists ===== */ .product-description.rte ul { padding-left: 20px; margin-bottom: 16px; list-style-type: disc; } .product-description.rte li { margin-bottom: 6px; } /* ===== Links ===== */ .product-description.rte a { color: #0288D1; text-decoration: none; transition: color 0.3s ease; } .product-description.rte a:hover { color: #01579B; } /* ===== M5Stack-style Spec Table ===== */ .product-description.rte .table-container { width: 100%; margin: 24px 0; overflow-x: auto; } .product-description.rte .table-container table { width: 100%; border-collapse: collapse; font-family: inherit; font-size: 14px; color: #2c2f36; background-color: #ffffff; border-radius: 10px; overflow: hidden; box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04); } .product-description.rte .table-container thead th { background: #1f6fe5; color: #ffffff; padding: 14px 16px; text-align: center; font-weight: 600; border: none; vertical-align: middle; } .product-description.rte .table-container td { padding: 14px 16px; border-bottom: 1px solid #e6ebf2; vertical-align: middle; } .product-description.rte .table-container tbody td:first-child { width: 36%; text-align: center; font-weight: 500; color: #4a4f57; background-color: rgba(31, 111, 229, 0.02); } .product-description.rte .table-container tbody tr:nth-child(even) { background-color: #f7f9fc; } @media (hover: hover) { .product-description.rte .table-container tbody tr:hover { background-color: #eef3ff; } } /* ===== Learn & Documents Button ===== */ .product-description.rte #learn-and-documents-btn { display: inline-flex; align-items: center; padding: 6px 14px; background-color: #1f6fe5; color: #ffffff; font-weight: 600; border-radius: 6px; margin-top: 8px; text-decoration: none; transition: background 0.3s ease; } .product-description.rte #learn-and-documents-btn:hover { background-color: #1661c1; } /* ===== Responsive Design for Smaller Screens (with table adjustments) ===== */ @media screen and (max-width: 768px) { .product-description.rte .table-container table, .product-description.rte .table-container thead, .product-description.rte .table-container tbody, .product-description.rte .table-container th, .product-description.rte .table-container td, .product-description.rte .table-container tr { display: block; width: 100%; } .product-description.rte .table-container thead { display: none; } .product-description.rte .table-container tbody tr { padding: 12px 0; border-bottom: 1px solid #e6ebf2; } .product-description.rte .table-container tbody td { padding: 8px 16px; border: none; text-align: left; } .product-description.rte .table-container tbody td:first-child { width: 100%; background: none; color: #1f6fe5; font-weight: 600; padding-top: 16px; } .product-description.rte .table-container tbody td:last-child { padding-bottom: 16px; color: #2c2f36; line-height: 1.6; } /* Ensure button appears correctly on mobile */ .product-description.rte #learn-and-documents-btn { font-size: 14px; padding: 8px 16px; } } 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 and Documents → DOCUMENTS Show more