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COMMU is a Multi-Communication-Interface-Converter. Integrated with 2I2C, 1TTL, 1CAN, 1RS485. Apparently, COMMU is packed with most of a series of communications.
Default connection: TTL - UART0, RS485 - UART2. Since the ESP32 pin map is allowed for re-assignment, you can re-assign or re-map the TTL or RS485 interface to other pins.
Be careful about the TTL Interface. It is a UART Interface actually by default. But you can switch it to connect with UART2 after changing those jumpers(J6, J7, J9, J10).
Product Features
- 2x I2C Interface
- 1x CAN Interface
- 1x RS485 Interface
- 1x TTL Interface
- CAN controller: MCP2515-1/SO
- RS485 Transceiver: SP3485EN-L/TR
Include
- 1x M5Stack COMMU Module
Specification
| Resources | Parameter |
|---|---|
| Interface | I2C x2, CAN x1, RS485 x1, TTL x1 |
| CAN Controller | MCP2515-1/SO |
| RS485 transceiver | SP3485EN-L/TR |
| Net weight | 13.5g |
| Gross weight | 24g |
| Product Size | 54.2*54.2*13mm |
| Package Size | 60*57*17mm |
| Material | Plastic ( PC ) |