M5 Stack COMMU Module

M5Stack COMMU is a Muti-Communication-Interface-Converter. Integrated with 2 IIC, 1 TTL, 1 CAN, 1 RS485. Apparently, COMMU has packed with most of the series communications. Default connection: TTL UART0, RS485 UART2. Since the ESP32 pin map is allowed for re-assign, you can re-assign or re-mapping the TTL or RS485 interface to other pins. We care about TTL Interface. It is a UART Interface actually by default. But you can switch it to connect with UART2 after changed those jumpers(J6, J7, J9, J10).

Features:

1. Two I2C Interface
2. One CAN Interface
3. One RS485 Interface
4. One TTL Interface
5. CAN controller: MCP2515-1/SO
6. RS485 Transceiver: SP3485EN-L/TR

Package Includes:

1 x M5Stack COMMU Module Extend RS485/TTL CAN/I2C Port

Specifications :-

CAN Controller	MCP2515-1/SO
RS485 Transceiver	SP3485EN-L/TR
Interface	I2C x2 CAN x1 RS485 x1 TTL x1
Length (mm)	54
Width (mm)	54
Height (mm)	13
Weight (gm)	14