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M5 Stack

M5 Stack COMMU Module Extend RS485/TTL CAN/I2C Port

M5 Stack COMMU Module Extend RS485/TTL CAN/I2C Port

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  • 2x I2C Interface
  • 1x CAN Interface
  • 1x RS485 Interface
  • 1x TTL Interface
  • CAN controller: MCP2515-1/SO
  • RS485 Transceiver: SP3485EN-L/TR
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M5 Stack COMMU Module Extend RS485/TTL CAN/I2C Port

COMMU is a Muti-Communication-Interface-Converter. Integrated with 2I2C, 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.

Be careful about 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).

Package Includes:

1x M5 Stack COMMU Module


Interface I2C x2, CAN x1, RS485 x1, TTL x1
CAN Controller MCP2515-1/SO
RS485 transceiver SP3485EN-L/TR
Dimension 54.2 x 54.2 x 13mm
Weight 24gm

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  • Delivery time in Metro cities is 1-3 days, Others it is
    3-7 days. It varies based on location, reliant on courier services
  • Return window: 7 days from receipt unless stated
    otherwise. No refunds/replacements after
  • Returns only for non-working/damaged products are accepted
  • Initiate return requests to our customer service team via Support ticket or contact us at +91-8123057137
  • Refunds are processed within 3-4 working days post inspection and approval.

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