Description: 1. RS485 Interface: M5 Stack COMMU Module supports RS485 communication protocol, enabling half-duplex data transmission over two wires with a maximum length of 40m in a bus topology. 2. TTL Level CAN Bus: It also integrates a Transceiver for CAN (Controller Area Network) bus communication at TTL level, allowing fast and reliable automation data exchange between microcontrollers and devices within the network. 3. I2C Interface: This module comes with an I2C interface that enables communication between two or more devices connected to a common bus using only 2 wires – SDA and SCL. 4. Multiple Communication Protocols: The M5 Stack COMMU Module supports various communication protocols such as Modbus, J1939, K-Line, CANopen, etc., enabling seamless integration with different IoT systems and automation projects. 5. Arduino and ESP32 Compatible: The module can be easily connected to Arduino or ESP32 development boards for creating IoT applications using popular programming languages like
| Specification | Details |
|---|---|
| Interface | RS485 TTL (3.3V/5V) CAN I2C |
| Microcontroller | ESP32 (Dual-Core 32-bit MCU) |
| Communication Speed | Up to 1 Mbps (CAN) |
| Data Transmission Rate | Up to 500 kbps (RS485) |
| Power Supply | 3.3V or 5V (from external power source) |
| Voltage Range | 2.5V to 6V (for ESP32) |
| Current Consumption | Typical: 50mA; Max: 250mA |
| Operating Temperature | -40°C to +85°C |
| Memory | 4MB Flash 520 KB SRAM |
| Dimensions | 45mm x 30mm x 12.5 mm (L x W x H) |
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