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M5Stack Unit C6L

M5Stack

868 MHz 915 MHz SX1262 ESP32-C6 22 dBm
DIY Modules

Compact LoRa communication unit from M5Stack based on the ESP32-C6 (RISC-V, 160 MHz) with an SX1262 transceiver. Features an integrated 0.66-inch SSD1306 OLED display (64×48 pixels), RGB LED (WS2812C), buzzer, and button. Two SMA antenna connectors (2.4 GHz Wi-Fi 6 + LoRa). Grove I2C port, USB-C (5V). No GPS. Receive sensitivity -147 dBm. Officially supports Messtatic, MeshCore firmware v1.13.0 and later. Price approx. 23 USD. 16 MB Flash.

Hardware Specifications

MCU

ESP32-C6

RAM

512 KB

Flash

16 MB

Display

OLED (0.66'' 64x48)

Button Count

2

Has LEDs

true

Weight

35 g

Dimensions

62 x 24 x 8

LoRa Specifications

LoRa Chip

SX1262

Frequency Band

868 MHz, 915 MHz

Max. TX Power

22 dBm

Antenna Type

SMA Außenantenne

Typical Range

22 km

Connectivity

WiFi

true

Bluetooth

true

GPS

false

Power

USB Type

USB-C

Battery Connector

extern (5V)

Solar Support

false

Power Consumption (Idle)

1 mA

Power Consumption (TX)

85 mA

Firmware Support

meshcore-dev/MeshCore Official
Repeater v1.16.0 06.03.2026 Release

Release notes: https://blog.meshcore.io/2026/06/06/release-1-16-0

Room Server v1.16.0 06.03.2026 Release

Release notes: https://blog.meshcore.io/2026/06/06/release-1-16-0

BLE Companion v1.16.0 06.03.2026 Release

Release notes: https://blog.meshcore.io/2026/06/06/release-1-16-0

USB Companion v1.16.0 06.03.2026 Release

Release notes: https://blog.meshcore.io/2026/06/06/release-1-16-0

mattzzw/MeshCore-Evo Community
Repeater v1.15.0-evo_0.1.21 21.02.2026 Release

⚠️ Check that radio.rxgain(on) and flood.advert.base (0.308) are set correctly after flashing! ⚠️

This build is based on official MeshCore 1.15.0 dev branch (as of 25-May-2026 and additionally includes the following unmerged upstream PRs/changes:

Additional changes:
  • Flood adverts are disabled (flood.advert.interval set to 0) by default
  • :new: modified PR1810 to not block flood adverts but only PAYLOADTYPEGRPTXT and PAYLOADTYPEGRPDATA so that some limited flood advert distribution can be managed via PR2553 to support e.g. observer maps.
Changelog:
  • Based on dev v1.15.0 as of 25-May-2026
Full Changelog: https://github.com/mattzzw/MeshCore-Evo/compare/v1.15.0-evo0.1.20...v1.15.0-evo0.1.21
MichTronics/MeshCoreNG Community
Repeater v1.0.1 17.05.2026 Release

Full Changelog: https://github.com/MichTronics/MeshCoreNG/compare/bridge-tcp-v1.0.5...repeater-v1.0.1

BLE Companion v1.0.1 17.05.2026 Release

Full Changelog: https://github.com/MichTronics/MeshCoreNG/compare/bridge-tcp-v1.0.5...companion-v1.0.1

USB Companion v1.0.1 17.05.2026 Release

Full Changelog: https://github.com/MichTronics/MeshCoreNG/compare/bridge-tcp-v1.0.5...companion-v1.0.1

Room Server v1.0.1 17.05.2026 Release

Full Changelog: https://github.com/MichTronics/MeshCoreNG/compare/bridge-tcp-v1.0.5...room-server-v1.0.1

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