Description M5Stack Unit C6L is a compact LoRa communication unit for Meshtastic and custom IoT projects. Built around an ESP32-C6 controller and SX1262 transceiver, it supports 868 to 923 MHz operation and includes a 0.66 inch OLED display, programmable RGB LED, buzzer, and user button. The unit provides USB-C power, separate RP-SMA connections for Wi-Fi and LoRa antennas, and an HY2.0-4P expansion port. The package includes a 2.4 GHz antenna, an 868 MHz LoRa antenna, and a Grove cable. Follow the official setup guide to install or update Meshtastic firmware. Watch the official product video for a closer look at the Unit C6L hardware, display, and antenna connections. Features Meshtastic private mesh networking in a compact LoRa communication unit. ESP32-C6 RISC-V controller with 16MB flash for Wi-Fi 6 and embedded development. SX1262 LoRa transceiver supporting 868 to 923 MHz, +22 dBm maximum TX power, and high receive sensitivity. Dual RP-SMA antenna interfaces for 2.4 GHz Wi-Fi and 868 MHz LoRa antennas. 0.66 inch SSD1306 OLED display, 64 x 48 resolution, for device status and Meshtastic information. Programmable WS2812C RGB LED, buzzer, and user button for local interaction. HY2.0-4P expansion interface for compatible sensors and modules. LEGO-compatible mounting holes and AW32901FCR over-voltage protection for more stable project integration. Before You Start Power: Use a DC 5V USB-C source. A USB-C data cable is required for firmware flashing and is not listed in the package contents. Firmware: Install and configure Meshtastic firmware by following the official M5Stack guide and Meshtastic web flasher workflow. Antenna safety: Attach the correct antennas before powering the device. Operating LoRa hardware without a suitable antenna may damage the radio circuit. Frequency planning: The radio supports 868 to 923 MHz operation, while the included LoRa antenna is specified for 868 MHz. Check your local operating band and antenna requirements before purchasing. Specifications SKU M5-U202 Product Name M5Stack Unit C6L Product Type LoRa communication unit / Meshtastic node hardware Controller ESP32-C6 RISC-V processor Flash 16MB LoRa Transceiver SX1262 LoRa Frequency 868 to 923 MHz hardware operating range Included LoRa Antenna 868 MHz RP-SMA whip antenna Maximum LoRa TX Power +22 dBm LoRa RX Sensitivity -147 dBm in low data rate mode Wireless 2.4 GHz Wi-Fi 6 Display 0.66 inch SSD1306 OLED, 64 x 48 Interface USB Type-C, HY2.0-4P expansion port, 2 x RP-SMA antenna connectors Power Input DC 5V via USB Type-C Product Size 62.0 x 24.0 x 8.0 mm, excluding antenna Product Weight 13.6g, excluding antenna Package Size 104.0 x 44.0 x 12.5 mm Gross Weight 38.6g Applications Building a compact Meshtastic node for private mesh communication. Outdoor exploration, off-grid messaging, emergency communication, and field tests. Smart agriculture and remote environmental monitoring over LoRa. Custom monitoring projects that need an ESP32-C6-based LoRa platform. Classroom, maker-space, and prototype demos for LoRa, Wi-Fi 6, and mesh network concepts. The official UIFlow 2.0 tutorial video helps buyers understand how the M5Stack C6L can be configured for software workflows beyond a standard Meshtastic node. What's Included 1 x Unit C6L 1 x 2.4 GHz RP-SMA whip antenna 1 x 868 MHz RP-SMA whip antenna 1 x HY2.0-4P Grove cable, 20cm Hardware Overview The hardware overview identifies the OLED display, buzzer, user button, USB-C port, RP-SMA antenna connectors, and HY2.0-4P expansion port so you can confirm the connection points before building an enclosure or wiring external modules. The package image shows the included unit, antennas, and Grove cable for a quick contents check. The antenna view shows the separate Wi-Fi and LoRa RP-SMA connections. Match the LoRa antenna to your intended regional band before deployment. To enter download mode, connect the unit to a computer with a USB-C data cable, then press and hold the side button for about 3 seconds. Use the official Meshtastic web flasher to install current firmware. Resources Official M5Stack Unit C6L documentation Official Meshtastic guide for Unit C6L Official Arduino quick start Meshtastic web flasher FAQ Is the M5Stack Unit C6L suitable for Meshtastic? Yes. The M5Stack Unit C6L is designed for Meshtastic and private LoRa mesh projects, with official M5Stack setup guidance available. Which radio chip does Unit C6L use? The Unit C6L uses an SX1262 LoRa transceiver with 868 to 923 MHz operation and an ESP32-C6 controller. How do I set up Meshtastic on the Unit C6L? Follow the official M5Stack setup guide to flash or update Meshtastic firmware and complete the initial configuration. How is the Unit C6L powered? Use a DC 5V USB-C power source. For flashing firmware from a computer, prepare a USB-C data cable. Which LoRa antenna is included? The package includes an 868 MHz RP-SMA LoRa antenna. The radio hardware supports 868 to 923 MHz, so check your operating band and antenna plan.
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