M5Stack Stamp C6LoRa is a high‑performance programmable LoRa module designed for the 850–960 MHz frequency band. Built with SMD (Surface Mount Device) technology, it offers a compact form factor ideal for high‑density embedded integration.
At its core, the module integrates an ESP32‑C6 SoC, an SX1262 LoRa RF chip, and an LNA signal amplifier. It provides two onboard IPEX antenna connectors for external Wi‑Fi and LoRa antennas. The LoRa RF chip delivers a maximum transmit power of +22 dBm and a receive sensitivity of –148 dBm.
The ESP32‑C6 controller offers abundant peripheral interfaces, supports secondary development, and includes 2.4 GHz Wi‑Fi 6, enabling advanced IoT applications. An internal PI4IOE5V6408 IO expansion chip manages the LoRa transceiver circuit and amplifier enable function, ensuring optimized power consumption while providing additional IO resources.
With DC 3.3–5 V power input, the module adapts to diverse hardware deployment scenarios. It is ideally suited for long‑distance communication applications such as smart irrigation, remote meter reading, and power equipment control.
Features
- ESP32-C6 main controller
- 2.4 GHz Wi-Fi 6
- SX1262 LoRa transceiver
- LoRa operating frequency: 850 ~ 960 MHz
- Built-in Low Noise Amplifier (LNA) to enhance reception performance
- SMD surface-mount package, compact size, and easy integration
- Dual IPEX-4 antenna connectors
Includes
- 1 x Stamp C6LoRa
Applications
- Smart agriculture
- Industrial monitoring
- Outdoor long-range communication
Specifications
| Specification | Parameter |
|---|---|
| SoC | ESP32-C6 (RISC-V 32-bit high-performance single-core processor 160 MHz + RISC-V 32-bit low-power single-core processor 20 MHz) |
| Flash | 16 MB |
| Wi-Fi | 2.4 GHz Wi-Fi 6 |
| LoRa Chip | SX1262 |
| LoRa Frequency | 850 ~ 960 MHz |
| LoRa Transmit Power | Max Transmit Power: +22 dBm / Max Sensitivity: -148 dBm |
| Antenna Connector | IPEX-4 |
| LNA | SGM13005L4 |
| GPIO Leads | 16x GPIO (G9/G11/G8/G10/G2/G7/G4/G5/G6/G15/G16/G17/G18/G20/G21/G22) + 5x EXT_IO Expansion (PI4IOE5V6408: EXT_P0 ~ P4) |
| Operating Power | Supports DC 3.7 ~ 5V input via the BAT pin / DC 3.3V input via the VDD_3V3 pin |
| Product Size (SMD) | 18.0 x 15.0 x 2.3 mm |
| Product Weight | 1.7 g |
| Package Size | 138.0 x 93.0 x 7.0 mm |
| Gross Weight | 4.5 g |
Antenna Installation
Stamp C6LoRa uses IPEX-4 antenna connectors. The locations of the LoRa and Wi-Fi antenna interfaces are shown in the figure below.