M5 Stack COMMU Module


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SKU: 846420
  1. CAN Controller: MCP2515-1/SO
  2. RS485 Transceiver: SP3485EN-L/TR
  3. Interface: I2C x2 ; CAN x1 ; RS485 x1 ; TTL x1


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Brand: M5 STACK
Category: IoT Development Boards

M5Stack COMMU is a Muti-Communication-Interface-Converter. Integrated with 2IIC, 1TTL, 1CAN, 1RS485. 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).


  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

SKU: 846420 Category:
CAN Controller


RS485 Transceiver



I2C x2
CAN x1
RS485 x1
TTL x1

Length (mm):


Width (mm):


Height (mm):


Weight (g):


Shipping Weight 0.018 kg
Shipping Dimensions 7 × 7 × 2 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects. Replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Country Of Origin: China